From 8c36cd08db587724c9568bddfac1f2ef4f13cb9f Mon Sep 17 00:00:00 2001
From: yiidevelop <yiidevelop@hotmail.com>
Date: Fri, 7 Jun 2013 03:26:36 +0700
Subject: [PATCH 01/17] Fix use incorrect namespace of Html helpers

---
 framework/yii/web/UploadedFile.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/framework/yii/web/UploadedFile.php b/framework/yii/web/UploadedFile.php
index 6e685a3..a1cd735 100644
--- a/framework/yii/web/UploadedFile.php
+++ b/framework/yii/web/UploadedFile.php
@@ -7,7 +7,7 @@
 
 namespace yii\web;
 
-use yii\widgets\Html;
+use yii\helpers\Html;
 
 /**
  * @author Qiang Xue <qiang.xue@gmail.com>

From 8b61ab7f71a4c355540cfa680a19b77e10076761 Mon Sep 17 00:00:00 2001
From: Gevik Babakhani <gevik@xs4all.nl>
Date: Thu, 6 Jun 2013 22:59:46 +0200
Subject: [PATCH 02/17] Force travis to create the pgsql test db

---
 .travis.yml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 8dff4a3..01abd50 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,10 +7,9 @@ php:
 
 env:
   - DB=mysql
-  - DB=postgres
 
 before_script:
   - sh -c "if [ '$DB' = 'mysql' ]; then mysql -e 'create database IF NOT EXISTS yiitest;'; fi"
-  - sh -c "if [ '$DB' = 'postgres' ]; then psql -U postgres -c 'drop database if exists yiitest;'; fi"
-  - sh -c "if [ '$DB' = 'postgres' ]; then psql -U postgres -c 'create database yiitest;'; fi"
+  - psql -U postgres -c 'drop database if exists yiitest;'; 
+  - psql -U postgres -c 'create database yiitest;';
 script: phpunit
\ No newline at end of file

From bf05ee2942f3e8ab4f736d5b25bfc189a3b3e666 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Thu, 6 Jun 2013 17:10:22 -0400
Subject: [PATCH 03/17] Response WIP.

---
 framework/yii/logging/ProfileTarget.php |   2 +-
 framework/yii/web/Response.php          | 147 +++++++++++++++++++++++++++++++-
 framework/yii/web/User.php              |   2 +-
 3 files changed, 147 insertions(+), 4 deletions(-)

diff --git a/framework/yii/logging/ProfileTarget.php b/framework/yii/logging/ProfileTarget.php
index f4522ac..d67762d 100644
--- a/framework/yii/logging/ProfileTarget.php
+++ b/framework/yii/logging/ProfileTarget.php
@@ -70,7 +70,7 @@ class CProfileLogRoute extends CWebLogRoute
 	public function processLogs($logs)
 	{
 		$app = \Yii::$app;
-		if (!($app instanceof CWebApplication) || $app->getRequest()->getIsAjaxRequest())
+		if (!($app instanceof CWebApplication) || $app->getRequest()->getIsAjax())
 			return;
 
 		if ($this->getReport() === 'summary')
diff --git a/framework/yii/web/Response.php b/framework/yii/web/Response.php
index 6801191..ea1d57e 100644
--- a/framework/yii/web/Response.php
+++ b/framework/yii/web/Response.php
@@ -8,9 +8,11 @@
 namespace yii\web;
 
 use Yii;
+use XMLWriter;
 use yii\base\HttpException;
 use yii\helpers\FileHelper;
 use yii\helpers\Html;
+use yii\helpers\Json;
 use yii\helpers\StringHelper;
 
 /**
@@ -27,7 +29,13 @@ class Response extends \yii\base\Response
 	 * @see redirect
 	 */
 	public $ajaxRedirectCode = 278;
-
+	/**
+	 * @var string
+	 */
+	public $content;
+	/**
+	 * @var HeaderCollection
+	 */
 	private $_headers;
 
 	/**
@@ -44,6 +52,141 @@ class Response extends \yii\base\Response
 	}
 
 	/**
+	 * Returns the current cache control setting as a string like sent in a header.
+	 * @return string the cache control setting, or null if there is no such header specified
+	 */
+	public function getCacheControl()
+	{
+		return $this->getHeaders()->get('Cache-Control');
+	}
+
+	/**
+	 * Sets the current cache control setting to be sent
+	 * @param string $value the cache control header value
+	 */
+	public function setCacheControl($value)
+	{
+		$this->getHeaders()->set('Cache-Control', $value);
+	}
+
+	/**
+	 * Gets the ETag header to be sent
+	 * @return string the ETag header, or false if none is set
+	 */
+	public function getEtag()
+	{
+		return $this->getHeaders()->get("ETag");
+	}
+
+	/**
+	 * Sets the ETag header to be sent
+	 * @param string $value the ETag header
+	 */
+	public function setEtag($value)
+	{
+		$this->getHeaders()->set("ETag", $value);
+	}
+
+	/**
+	 * Gets the last modified header to send
+	 * @return string the last modified header, or null if none is set
+	 */
+	public function getLastModified()
+	{
+		return $this->getHeaders()->get("Last-Modified");
+	}
+
+	/**
+	 * Sets the last modified header to send
+	 * @param integer $value the unix time of the last modified date
+	 */
+	public function setLastModified($value)
+	{
+		$this->getHeaders()->set("Last-Modified", $value);
+	}
+
+	/**
+	 * Gets the content type header to send
+	 * @return string the content type header, or null if none is set
+	 */
+	public function getContentType()
+	{
+		return $this->getHeaders()->get("Content-type");
+	}
+
+	/**
+	 * Sets the content type header to send
+	 * @param string $value the content type header
+	 */
+	public function setContentType($value)
+	{
+		$this->getHeaders()->set("Content-type", $value);
+	}
+
+	/**
+	 * Gets the content disposition header to send
+	 * @return string the content disposition, or null if none is set
+	 */
+	public function getContentDisposition()
+	{
+		return $this->getHeaders()->get("Content-Disposition");
+	}
+
+	/**
+	 * Sets the content disposition header to send
+	 * @param string $contentDisposition the content disposition header
+	 */
+	public function setContentDisposition($contentDisposition)
+	{
+		$this->getHeaders()->set("Content-Disposition", $contentDisposition);
+	}
+
+	public function renderJson($data)
+	{
+		$this->setContentType("application/json");
+		$this->content = Json::encode($data);
+	}
+
+	public function renderJsonp($callbackName, $data)
+	{
+		$this->setContentType("application/json");
+		$data = Json::encode($data);
+		$this->content = "$callbackName($data)";
+	}
+
+	/**
+	 * Sends the response to the client.
+	 * @return boolean true if the response was sent
+	 */
+	public function send()
+	{
+		$this->sendHeaders();
+		$this->sendContent();
+	}
+
+	/**
+	 * Sends the response headers to the client
+	 */
+	protected function sendHeaders()
+	{
+		foreach ($this->_headers as $name => $values) {
+			foreach ($values as $value) {
+				header("$name: $value");
+			}
+		}
+		$this->_headers->removeAll();
+	}
+
+	/**
+	 * Sends the response content to the client
+	 */
+	protected function sendContent()
+	{
+		echo $this->content;
+		$this->content = null;
+	}
+
+	/**
 	 * Sends a file to user.
 	 * @param string $fileName file name
 	 * @param string $content content to be set.
@@ -258,7 +401,7 @@ class Response extends \yii\base\Response
 		if (strpos($url, '/') === 0 && strpos($url, '//') !== 0) {
 			$url = Yii::$app->getRequest()->getHostInfo() . $url;
 		}
-		if (Yii::$app->getRequest()->getIsAjaxRequest()) {
+		if (Yii::$app->getRequest()->getIsAjax()) {
 			$statusCode = $this->ajaxRedirectCode;
 		}
 		header('Location: ' . $url, true, $statusCode);
diff --git a/framework/yii/web/User.php b/framework/yii/web/User.php
index 79665ae..5522bbb 100644
--- a/framework/yii/web/User.php
+++ b/framework/yii/web/User.php
@@ -280,7 +280,7 @@ class User extends Component
 	public function loginRequired()
 	{
 		$request = Yii::$app->getRequest();
-		if (!$request->getIsAjaxRequest()) {
+		if (!$request->getIsAjax()) {
 			$this->setReturnUrl($request->getUrl());
 		}
 		if ($this->loginUrl !== null) {

From ba0da059da109c26a8ef7ca965ac2a7b9db13af1 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Fri, 7 Jun 2013 08:00:47 -0400
Subject: [PATCH 04/17] response WIP

---
 framework/yii/base/HttpException.php |  65 +----------
 framework/yii/web/Response.php       | 216 ++++++++++++++++++++++++++++++++---
 2 files changed, 207 insertions(+), 74 deletions(-)

diff --git a/framework/yii/base/HttpException.php b/framework/yii/base/HttpException.php
index 4d63764..b1478b0 100644
--- a/framework/yii/base/HttpException.php
+++ b/framework/yii/base/HttpException.php
@@ -7,6 +7,9 @@
 
 namespace yii\base;
 
+use yii\web\Response;
+
+
 /**
  * HttpException represents an exception caused by an improper request of the end-user.
  *
@@ -42,66 +45,8 @@ class HttpException extends UserException
 	 */
 	public function getName()
 	{
-		static $httpCodes = array(
-			100 => 'Continue',
-			101 => 'Switching Protocols',
-			102 => 'Processing',
-			118 => 'Connection timed out',
-			200 => 'OK',
-			201 => 'Created',
-			202 => 'Accepted',
-			203 => 'Non-Authoritative',
-			204 => 'No Content',
-			205 => 'Reset Content',
-			206 => 'Partial Content',
-			207 => 'Multi-Status',
-			210 => 'Content Different',
-			300 => 'Multiple Choices',
-			301 => 'Moved Permanently',
-			302 => 'Found',
-			303 => 'See Other',
-			304 => 'Not Modified',
-			305 => 'Use Proxy',
-			307 => 'Temporary Redirect',
-			310 => 'Too many Redirect',
-			400 => 'Bad Request',
-			401 => 'Unauthorized',
-			402 => 'Payment Required',
-			403 => 'Forbidden',
-			404 => 'Not Found',
-			405 => 'Method Not Allowed',
-			406 => 'Not Acceptable',
-			407 => 'Proxy Authentication Required',
-			408 => 'Request Time-out',
-			409 => 'Conflict',
-			410 => 'Gone',
-			411 => 'Length Required',
-			412 => 'Precondition Failed',
-			413 => 'Request Entity Too Large',
-			414 => 'Request-URI Too Long',
-			415 => 'Unsupported Media Type',
-			416 => 'Requested range unsatisfiable',
-			417 => 'Expectation failed',
-			418 => 'I’m a teapot',
-			422 => 'Unprocessable entity',
-			423 => 'Locked',
-			424 => 'Method failure',
-			425 => 'Unordered Collection',
-			426 => 'Upgrade Required',
-			449 => 'Retry With',
-			450 => 'Blocked by Windows Parental Controls',
-			500 => 'Internal Server Error',
-			501 => 'Not Implemented',
-			502 => 'Bad Gateway ou Proxy Error',
-			503 => 'Service Unavailable',
-			504 => 'Gateway Time-out',
-			505 => 'HTTP Version not supported',
-			507 => 'Insufficient storage',
-			509 => 'Bandwidth Limit Exceeded',
-		);
-
-		if (isset($httpCodes[$this->statusCode])) {
-			return $httpCodes[$this->statusCode];
+		if (isset(Response::$statusTexts[$this->statusCode])) {
+			return Response::$statusTexts[$this->statusCode];
 		} else {
 			return 'Error';
 		}
diff --git a/framework/yii/web/Response.php b/framework/yii/web/Response.php
index ea1d57e..93c031e 100644
--- a/framework/yii/web/Response.php
+++ b/framework/yii/web/Response.php
@@ -8,8 +8,8 @@
 namespace yii\web;
 
 use Yii;
-use XMLWriter;
 use yii\base\HttpException;
+use yii\base\InvalidParamException;
 use yii\helpers\FileHelper;
 use yii\helpers\Html;
 use yii\helpers\Json;
@@ -34,10 +34,117 @@ class Response extends \yii\base\Response
 	 */
 	public $content;
 	/**
+	 * @var string
+	 */
+	public $statusText;
+	/**
+	 * @var string the charset to use. If not set, [[\yii\base\Application::charset]] will be used.
+	 */
+	public $charset;
+	/**
+	 * @var string the version of the HTTP protocol to use
+	 */
+	public $version = '1.0';
+
+	/**
+	 * @var array list of HTTP status codes and the corresponding texts
+	 */
+	public static $statusTexts = array(
+		100 => 'Continue',
+		101 => 'Switching Protocols',
+		102 => 'Processing',
+		118 => 'Connection timed out',
+		200 => 'OK',
+		201 => 'Created',
+		202 => 'Accepted',
+		203 => 'Non-Authoritative',
+		204 => 'No Content',
+		205 => 'Reset Content',
+		206 => 'Partial Content',
+		207 => 'Multi-Status',
+		208 => 'Already Reported',
+		210 => 'Content Different',
+		226 => 'IM Used',
+		300 => 'Multiple Choices',
+		301 => 'Moved Permanently',
+		302 => 'Found',
+		303 => 'See Other',
+		304 => 'Not Modified',
+		305 => 'Use Proxy',
+		306 => 'Reserved',
+		307 => 'Temporary Redirect',
+		308 => 'Permanent Redirect',
+		310 => 'Too many Redirect',
+		400 => 'Bad Request',
+		401 => 'Unauthorized',
+		402 => 'Payment Required',
+		403 => 'Forbidden',
+		404 => 'Not Found',
+		405 => 'Method Not Allowed',
+		406 => 'Not Acceptable',
+		407 => 'Proxy Authentication Required',
+		408 => 'Request Time-out',
+		409 => 'Conflict',
+		410 => 'Gone',
+		411 => 'Length Required',
+		412 => 'Precondition Failed',
+		413 => 'Request Entity Too Large',
+		414 => 'Request-URI Too Long',
+		415 => 'Unsupported Media Type',
+		416 => 'Requested range unsatisfiable',
+		417 => 'Expectation failed',
+		418 => 'I’m a teapot',
+		422 => 'Unprocessable entity',
+		423 => 'Locked',
+		424 => 'Method failure',
+		425 => 'Unordered Collection',
+		426 => 'Upgrade Required',
+		428 => 'Precondition Required',
+		429 => 'Too Many Requests',
+		431 => 'Request Header Fields Too Large',
+		449 => 'Retry With',
+		450 => 'Blocked by Windows Parental Controls',
+		500 => 'Internal Server Error',
+		501 => 'Not Implemented',
+		502 => 'Bad Gateway ou Proxy Error',
+		503 => 'Service Unavailable',
+		504 => 'Gateway Time-out',
+		505 => 'HTTP Version not supported',
+		507 => 'Insufficient storage',
+		508 => 'Loop Detected',
+		509 => 'Bandwidth Limit Exceeded',
+		510 => 'Not Extended',
+		511 => 'Network Authentication Required',
+	);
+
+	private $_statusCode = 200;
+	/**
 	 * @var HeaderCollection
 	 */
 	private $_headers;
 
+
+	public function init()
+	{
+		if ($this->charset === null) {
+			$this->charset = Yii::$app->charset;
+		}
+	}
+
+	public function getStatusCode()
+	{
+		return $this->_statusCode;
+	}
+
+	public function setStatusCode($value)
+	{
+		$this->_statusCode = (int)$value;
+		if ($this->isInvalid()) {
+			throw new InvalidParamException("The HTTP status code is invalid: $value");
+		}
+		$this->statusText = isset(self::$statusTexts[$this->_statusCode]) ? self::$statusTexts[$this->_statusCode] : 'Error';
+	}
+
 	/**
 	 * Returns the header collection.
 	 * The header collection contains the currently registered HTTP headers.
@@ -75,7 +182,7 @@ class Response extends \yii\base\Response
 	 */
 	public function getEtag()
 	{
-		return $this->getHeaders()->get("ETag");
+		return $this->getHeaders()->get('ETag');
 	}
 
 	/**
@@ -84,7 +191,7 @@ class Response extends \yii\base\Response
 	 */
 	public function setEtag($value)
 	{
-		$this->getHeaders()->set("ETag", $value);
+		$this->getHeaders()->set('ETag', $value);
 	}
 
 	/**
@@ -93,7 +200,7 @@ class Response extends \yii\base\Response
 	 */
 	public function getLastModified()
 	{
-		return $this->getHeaders()->get("Last-Modified");
+		return $this->getHeaders()->get('Last-Modified');
 	}
 
 	/**
@@ -102,7 +209,7 @@ class Response extends \yii\base\Response
 	 */
 	public function setLastModified($value)
 	{
-		$this->getHeaders()->set("Last-Modified", $value);
+		$this->getHeaders()->set('Last-Modified', $value);
 	}
 
 	/**
@@ -111,7 +218,7 @@ class Response extends \yii\base\Response
 	 */
 	public function getContentType()
 	{
-		return $this->getHeaders()->get("Content-type");
+		return $this->getHeaders()->get('Content-type');
 	}
 
 	/**
@@ -120,7 +227,7 @@ class Response extends \yii\base\Response
 	 */
 	public function setContentType($value)
 	{
-		$this->getHeaders()->set("Content-type", $value);
+		$this->getHeaders()->set('Content-type', $value);
 	}
 
 	/**
@@ -129,29 +236,29 @@ class Response extends \yii\base\Response
 	 */
 	public function getContentDisposition()
 	{
-		return $this->getHeaders()->get("Content-Disposition");
+		return $this->getHeaders()->get('Content-Disposition');
 	}
 
 	/**
 	 * Sets the content disposition header to send
-	 * @param string $contentDisposition the content disposition header
+	 * @param string $value the content disposition header
 	 */
-	public function setContentDisposition($contentDisposition)
+	public function setContentDisposition($value)
 	{
-		$this->getHeaders()->set("Content-Disposition", $contentDisposition);
+		$this->getHeaders()->set('Content-Disposition', $value);
 	}
 
 	public function renderJson($data)
 	{
-		$this->setContentType("application/json");
+		$this->setContentType('application/json');
 		$this->content = Json::encode($data);
 	}
 
 	public function renderJsonp($callbackName, $data)
 	{
-		$this->setContentType("application/json");
+		$this->setContentType('text/javascript');
 		$data = Json::encode($data);
-		$this->content = "$callbackName($data)";
+		$this->content = "$callbackName($data);";
 	}
 
 	/**
@@ -169,6 +276,7 @@ class Response extends \yii\base\Response
 	 */
 	protected function sendHeaders()
 	{
+		header("HTTP/{$this->version} " . $this->getStatusCode() . " {$this->statusText}");
 		foreach ($this->_headers as $name => $values) {
 			foreach ($values as $value) {
 				header("$name: $value");
@@ -446,4 +554,84 @@ class Response extends \yii\base\Response
 	{
 		return Yii::$app->getRequest()->getCookies();
 	}
+
+	/**
+	 * @return boolean whether this response has a valid [[statusCode]].
+	 */
+	public function isInvalid()
+	{
+		return $this->getStatusCode() < 100 || $this->getStatusCode() >= 600;
+	}
+
+	/**
+	 * @return boolean whether this response is informational
+	 */
+	public function isInformational()
+	{
+		return $this->getStatusCode() >= 100 && $this->getStatusCode() < 200;
+	}
+
+	/**
+	 * @return boolean whether this response is successfully
+	 */
+	public function isSuccessful()
+	{
+		return $this->getStatusCode() >= 200 && $this->getStatusCode() < 300;
+	}
+
+	/**
+	 * @return boolean whether this response is a redirection
+	 */
+	public function isRedirection()
+	{
+		return $this->getStatusCode() >= 300 && $this->getStatusCode() < 400;
+	}
+
+	/**
+	 * @return boolean whether this response indicates a client error
+	 */
+	public function isClientError()
+	{
+		return $this->getStatusCode() >= 400 && $this->getStatusCode() < 500;
+	}
+
+	/**
+	 * @return boolean whether this response indicates a server error
+	 */
+	public function isServerError()
+	{
+		return $this->getStatusCode() >= 500 && $this->getStatusCode() < 600;
+	}
+
+	/**
+	 * @return boolean whether this response is OK
+	 */
+	public function isOk()
+	{
+		return 200 === $this->getStatusCode();
+	}
+
+	/**
+	 * @return boolean whether this response indicates the current request is forbidden
+	 */
+	public function isForbidden()
+	{
+		return 403 === $this->getStatusCode();
+	}
+
+	/**
+	 * @return boolean whether this response indicates the currently requested resource is not found
+	 */
+	public function isNotFound()
+	{
+		return 404 === $this->getStatusCode();
+	}
+
+	/**
+	 * @return boolean whether this response is empty
+	 */
+	public function isEmpty()
+	{
+		return in_array($this->getStatusCode(), array(201, 204, 304));
+	}
 }

From b455f2c97afc405387bff929ddcb972d6c48a366 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Fri, 7 Jun 2013 08:08:40 -0400
Subject: [PATCH 05/17] Fixed test break.

---
 framework/yii/base/HttpException.php      | 6 ++----
 tests/unit/framework/web/ResponseTest.php | 1 +
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/framework/yii/base/HttpException.php b/framework/yii/base/HttpException.php
index b1478b0..cce0bb0 100644
--- a/framework/yii/base/HttpException.php
+++ b/framework/yii/base/HttpException.php
@@ -7,8 +7,6 @@
 
 namespace yii\base;
 
-use yii\web\Response;
-
 
 /**
  * HttpException represents an exception caused by an improper request of the end-user.
@@ -45,8 +43,8 @@ class HttpException extends UserException
 	 */
 	public function getName()
 	{
-		if (isset(Response::$statusTexts[$this->statusCode])) {
-			return Response::$statusTexts[$this->statusCode];
+		if (isset(\yii\web\Response::$statusTexts[$this->statusCode])) {
+			return \yii\web\Response::$statusTexts[$this->statusCode];
 		} else {
 			return 'Error';
 		}
diff --git a/tests/unit/framework/web/ResponseTest.php b/tests/unit/framework/web/ResponseTest.php
index 2fde63d..5da9b8c 100644
--- a/tests/unit/framework/web/ResponseTest.php
+++ b/tests/unit/framework/web/ResponseTest.php
@@ -32,6 +32,7 @@ class ResponseTest extends \yiiunit\TestCase
 	protected function setUp()
 	{
 		parent::setUp();
+		$this->mockApplication();
 		$this->reset();
 	}
 

From b14bb52cddec33cf4f1f8bc8fc2ae387689f6ba1 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Fri, 7 Jun 2013 08:47:22 -0400
Subject: [PATCH 06/17] Fixed status text.

---
 framework/yii/web/Response.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/framework/yii/web/Response.php b/framework/yii/web/Response.php
index 93c031e..12c3f34 100644
--- a/framework/yii/web/Response.php
+++ b/framework/yii/web/Response.php
@@ -142,7 +142,7 @@ class Response extends \yii\base\Response
 		if ($this->isInvalid()) {
 			throw new InvalidParamException("The HTTP status code is invalid: $value");
 		}
-		$this->statusText = isset(self::$statusTexts[$this->_statusCode]) ? self::$statusTexts[$this->_statusCode] : 'Error';
+		$this->statusText = isset(self::$statusTexts[$this->_statusCode]) ? self::$statusTexts[$this->_statusCode] : '';
 	}
 
 	/**

From a08399bcc5cc98743aae26540307efd35059555a Mon Sep 17 00:00:00 2001
From: resurtm <resurtm@gmail.com>
Date: Fri, 7 Jun 2013 20:56:02 +0600
Subject: [PATCH 07/17] Yii::t() minor fix.

---
 framework/yii/YiiBase.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/framework/yii/YiiBase.php b/framework/yii/YiiBase.php
index 4fe0e77..c8eaf7a 100644
--- a/framework/yii/YiiBase.php
+++ b/framework/yii/YiiBase.php
@@ -606,7 +606,10 @@ class YiiBase
 	public static function t($category, $message, $params = array(), $language = null)
 	{
 		if (self::$app !== null) {
-			return self::$app->getI18N()->translate($category, $message, $params, $language);
+			if ($language === null) {
+				$language = self::$app->language;
+			}
+			return self::$app->getI18N()->translate($category, $message, $language);
 		} else {
 			return is_array($params) ? strtr($message, $params) : $message;
 		}

From f4cc4a8bd72ca8b3ff3d2c43c79f28b2243edd75 Mon Sep 17 00:00:00 2001
From: resurtm <resurtm@gmail.com>
Date: Fri, 7 Jun 2013 20:58:58 +0600
Subject: [PATCH 08/17] Fixes #13. Implement DB message source.

---
 framework/yii/i18n/DbMessageSource.php | 151 +++++++++++++++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 framework/yii/i18n/DbMessageSource.php

diff --git a/framework/yii/i18n/DbMessageSource.php b/framework/yii/i18n/DbMessageSource.php
new file mode 100644
index 0000000..831cabb
--- /dev/null
+++ b/framework/yii/i18n/DbMessageSource.php
@@ -0,0 +1,151 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\i18n;
+
+use Yii;
+use yii\base\InvalidConfigException;
+use yii\helpers\ArrayHelper;
+use yii\caching\Cache;
+use yii\db\Connection;
+use yii\db\Query;
+
+/**
+ * DbMessageSource extends [[MessageSource]] and represents a message source that stores translated
+ * messages in database.
+ *
+ * The database must contain the following two tables:
+ *
+ * ~~~
+ * CREATE TABLE tbl_source_message (
+ *     id INTEGER PRIMARY KEY,
+ *     category VARCHAR(32),
+ *     message TEXT
+ * );
+ *
+ * CREATE TABLE tbl_message (
+ *     id INTEGER,
+ *     language VARCHAR(16),
+ *     translation TEXT,
+ *     PRIMARY KEY (id, language),
+ *     CONSTRAINT fk_message_source_message FOREIGN KEY (id)
+ *         REFERENCES tbl_source_message (id) ON DELETE CASCADE ON UPDATE RESTRICT
+ * );
+ * ~~~
+ *
+ * The `tbl_source_message` table stores the messages to be translated, and the `tbl_message` table stores
+ * the translated messages. The name of these two tables can be customized by setting [[sourceMessageTable]]
+ * and [[messageTable]], respectively.
+ *
+ * When [[cachingDuration]] is set as a positive number, message translations will be cached.
+ *
+ * @author resurtm <resurtm@gmail.com>
+ * @since 2.0
+ */
+class DbMessageSource extends MessageSource
+{
+	/**
+	 * Prefix which would be used when generating cache key.
+	 */
+	const CACHE_KEY_PREFIX = 'DbMessageSource';
+
+	/**
+	 * @var Connection|string the DB connection object or the application component ID of the DB connection.
+	 * After the DbMessageSource object is created, if you want to change this property, you should only assign
+	 * it with a DB connection object.
+	 */
+	public $db = 'db';
+	/**
+	 * @var Cache|string the cache object or the application component ID of the cache object.
+	 * The messages data will be cached using this cache object. Note, this property has meaning only
+	 * in case [[cachingDuration]] set to non-zero value.
+	 * After the DbMessageSource object is created, if you want to change this property, you should only assign
+	 * it with a cache object.
+	 */
+	public $cache = 'cache';
+	/**
+	 * @var string the name of the source message table. Defaults to `{{%source_message}}`.
+	 */
+	public $sourceMessageTable = '{{%source_message}}';
+	/**
+	 * @var string the name of the translated message table. Defaults to `{{%message}}`.
+	 */
+	public $messageTable = '{{%message}}';
+	/**
+	 * @var integer the time in seconds that the messages can remain valid in cache.
+	 * Defaults to 0, meaning the caching is disabled.
+	 */
+	public $cachingDuration = 0;
+
+	/**
+	 * Initializes the DbMessageSource component.
+	 * This method will initialize the [[db]] property to make sure it refers to a valid DB connection.
+	 * Configured [[cache]] component would also be initialized.
+	 * @throws InvalidConfigException if [[db]] is invalid or [[cache]] is invalid.
+	 */
+	public function init()
+	{
+		parent::init();
+		if (is_string($this->db)) {
+			$this->db = Yii::$app->getComponent($this->db);
+		}
+		if (!$this->db instanceof Connection) {
+			throw new InvalidConfigException("DbMessageSource::db must be either a DB connection instance or the application component ID of a DB connection.");
+		}
+		if ($this->cachingDuration > 0) {
+			if (is_string($this->cache)) {
+				$this->cache = Yii::$app->getComponent($this->cache);
+			}
+			if (!$this->cache instanceof Cache) {
+				throw new InvalidConfigException("DbMessageSource::cache must be either a cache object or the application component ID of the cache object.");
+			}
+		}
+	}
+
+	/**
+	 * Loads the message translation for the specified language and category.
+	 * Child classes should override this method to return the message translations of
+	 * the specified language and category.
+	 * @param string $category the message category
+	 * @param string $language the target language
+	 * @return array the loaded messages. The keys are original messages, and the values
+	 * are translated messages.
+	 */
+	protected function loadMessages($category, $language)
+	{
+		if ($this->cachingDuration === 0) {
+			return $this->retrieveMessages($category, $language);
+		} else {
+			$key = static::CACHE_KEY_PREFIX . ".messages.{$category}.{$language}";
+			$messages = $this->cache->get($key);
+			if ($messages === false) {
+				$messages = $this->retrieveMessages($category, $language);
+				$this->cache->set($key, $messages, $this->cachingDuration);
+			}
+			return $messages;
+		}
+	}
+
+	/**
+	 * Loads the messages from database.
+	 * You may override this method to customize the message storage in the database.
+	 * @param string $category the message category.
+	 * @param string $language the target language.
+	 * @return array the messages loaded from database.
+	 */
+	protected function retrieveMessages($category, $language)
+	{
+		$query = new Query();
+		$messages = $query->select(array('t1.message message', 't2.translation translation'))
+			->from(array($this->sourceMessageTable . ' t1', $this->messageTable . ' t2'))
+			->where('t1.id = t2.id AND t1.category = :category AND t2.language = :language')
+			->params(array(':category' => $category, ':language' => $language))
+			->createCommand($this->db)
+			->queryAll();
+		return ArrayHelper::map($messages, 'message', 'translation');
+	}
+}

From 29ac3aeea6ace6a1947f0e0226b9d751ed157c5f Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Fri, 7 Jun 2013 11:02:26 -0400
Subject: [PATCH 09/17] Added Jsonable support.

---
 framework/yii/YiiBase.php                          | 25 ++++++++++++++++++++++
 framework/yii/base/Jsonable.php                    | 22 +++++++++++++++++++
 framework/yii/base/Model.php                       | 13 ++++++++++-
 framework/yii/base/Object.php                      | 19 +++++++++++++---
 .../yii/console/controllers/AssetController.php    |  1 -
 framework/yii/helpers/base/Json.php                | 20 ++++++++++-------
 6 files changed, 87 insertions(+), 13 deletions(-)
 create mode 100644 framework/yii/base/Jsonable.php

diff --git a/framework/yii/YiiBase.php b/framework/yii/YiiBase.php
index 4fe0e77..6114ced 100644
--- a/framework/yii/YiiBase.php
+++ b/framework/yii/YiiBase.php
@@ -611,6 +611,31 @@ class YiiBase
 			return is_array($params) ? strtr($message, $params) : $message;
 		}
 	}
+
+	/**
+	 * Configures an object with the initial property values.
+	 * @param object $object the object to be configured
+	 * @param array $properties the property initial values given in terms of name-value pairs.
+	 */
+	public static function configure($object, $properties)
+	{
+		foreach ($properties as $name => $value) {
+			$object->$name = $value;
+		}
+	}
+
+	/**
+	 * Returns the public member variables of an object.
+	 * This method is provided such that we can get the public member variables of an object.
+	 * It is different from "get_object_vars()" because the latter will return private
+	 * and protected variables if it is called within the object itself.
+	 * @param object $object the object to be handled
+	 * @return array the public member variables of the object
+	 */
+	public static function getObjectVars($object)
+	{
+		return get_object_vars($object);
+	}
 }
 
 YiiBase::$aliases = array(
diff --git a/framework/yii/base/Jsonable.php b/framework/yii/base/Jsonable.php
new file mode 100644
index 0000000..4a3f7d9
--- /dev/null
+++ b/framework/yii/base/Jsonable.php
@@ -0,0 +1,22 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\base;
+
+/**
+ * Jsonable should be implemented by classes that need to be represented in JSON format.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+interface Jsonable
+{
+	/**
+	 * @return string the JSON representation of this object
+	 */
+	function toJson();
+}
diff --git a/framework/yii/base/Model.php b/framework/yii/base/Model.php
index c7432f5..b9b7d2d 100644
--- a/framework/yii/base/Model.php
+++ b/framework/yii/base/Model.php
@@ -10,6 +10,7 @@ namespace yii\base;
 use ArrayObject;
 use ArrayIterator;
 use yii\helpers\Inflector;
+use yii\helpers\Json;
 use yii\validators\RequiredValidator;
 use yii\validators\Validator;
 
@@ -41,7 +42,7 @@ use yii\validators\Validator;
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
-class Model extends Component implements \IteratorAggregate, \ArrayAccess
+class Model extends Component implements \IteratorAggregate, \ArrayAccess, Jsonable
 {
 	/**
 	 * @event ModelEvent an event raised at the beginning of [[validate()]]. You may set
@@ -638,6 +639,16 @@ class Model extends Component implements \IteratorAggregate, \ArrayAccess
 	}
 
 	/**
+	 * Returns the JSON representation of this object.
+	 * The default implementation will return [[attributes]].
+	 * @return string the JSON representation of this object.
+	 */
+	public function toJson()
+	{
+		return Json::encode($this->getAttributes());
+	}
+
+	/**
 	 * Returns an iterator for traversing the attributes in the model.
 	 * This method is required by the interface IteratorAggregate.
 	 * @return ArrayIterator an iterator for traversing the items in the list.
diff --git a/framework/yii/base/Object.php b/framework/yii/base/Object.php
index a90a231..79c1f7b 100644
--- a/framework/yii/base/Object.php
+++ b/framework/yii/base/Object.php
@@ -7,12 +7,15 @@
 
 namespace yii\base;
 
+use Yii;
+use yii\helpers\Json;
+
 /**
  * @include @yii/base/Object.md
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
-class Object
+class Object implements Jsonable
 {
 	/**
 	 * @return string the fully qualified name of this class.
@@ -38,8 +41,8 @@ class Object
 	 */
 	public function __construct($config = array())
 	{
-		foreach ($config as $name => $value) {
-			$this->$name = $value;
+		if (!empty($config)) {
+			Yii::configure($this, $config);
 		}
 		$this->init();
 	}
@@ -216,4 +219,14 @@ class Object
 	{
 		return method_exists($this, 'set' . $name) || $checkVar && property_exists($this, $name);
 	}
+
+	/**
+	 * Returns the JSON representation of this object.
+	 * The default implementation will return all public member variables.
+	 * @return string the JSON representation of this object.
+	 */
+	public function toJson()
+	{
+		return Json::encode(Yii::getObjectVars($this));
+	}
 }
diff --git a/framework/yii/console/controllers/AssetController.php b/framework/yii/console/controllers/AssetController.php
index 4c759de..cd8710e 100644
--- a/framework/yii/console/controllers/AssetController.php
+++ b/framework/yii/console/controllers/AssetController.php
@@ -164,7 +164,6 @@ class AssetController extends Controller
 	protected function loadConfiguration($configFile)
 	{
 		echo "Loading configuration from '{$configFile}'...\n";
-
 		foreach (require($configFile) as $name => $value) {
 			if (property_exists($this, $name) || $this->canSetProperty($name)) {
 				$this->$name = $value;
diff --git a/framework/yii/helpers/base/Json.php b/framework/yii/helpers/base/Json.php
index 8de55f9..41d5bf0 100644
--- a/framework/yii/helpers/base/Json.php
+++ b/framework/yii/helpers/base/Json.php
@@ -8,6 +8,7 @@
 namespace yii\helpers\base;
 
 use yii\base\InvalidParamException;
+use yii\base\Jsonable;
 use yii\web\JsExpression;
 
 /**
@@ -90,16 +91,19 @@ class Json
 				$token = '!{[' . count($expressions) . ']}!';
 				$expressions['"' . $token . '"'] = $data->expression;
 				return $token;
-			}
-			$result = array();
-			foreach ($data as $key => $value) {
-				if (is_array($value) || is_object($value)) {
-					$result[$key] = static::processData($value, $expressions);
-				} else {
-					$result[$key] = $value;
+			} elseif ($data instanceof Jsonable) {
+				return $data->toJson();
+			} else {
+				$result = array();
+				foreach ($data as $key => $value) {
+					if (is_array($value) || is_object($value)) {
+						$result[$key] = static::processData($value, $expressions);
+					} else {
+						$result[$key] = $value;
+					}
 				}
+				return $result;
 			}
-			return $result;
 		} else {
 			return $data;
 		}

From 6c7672c562b39d3a6cabe45655e67f35c196284a Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Fri, 7 Jun 2013 11:08:15 -0400
Subject: [PATCH 10/17] Minor refactoring of t().

---
 framework/yii/YiiBase.php   | 5 +----
 framework/yii/i18n/I18N.php | 9 ++-------
 2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/framework/yii/YiiBase.php b/framework/yii/YiiBase.php
index d7b2bd6..ee75822 100644
--- a/framework/yii/YiiBase.php
+++ b/framework/yii/YiiBase.php
@@ -606,10 +606,7 @@ class YiiBase
 	public static function t($category, $message, $params = array(), $language = null)
 	{
 		if (self::$app !== null) {
-			if ($language === null) {
-				$language = self::$app->language;
-			}
-			return self::$app->getI18N()->translate($category, $message, $language);
+			return self::$app->getI18N()->translate($category, $message, $params, $language ?: self::$app->language);
 		} else {
 			return is_array($params) ? strtr($message, $params) : $message;
 		}
diff --git a/framework/yii/i18n/I18N.php b/framework/yii/i18n/I18N.php
index a358683..b929f49 100644
--- a/framework/yii/i18n/I18N.php
+++ b/framework/yii/i18n/I18N.php
@@ -78,16 +78,11 @@ class I18N extends Component
 	 * @param string $category the message category.
 	 * @param string $message the message to be translated.
 	 * @param array $params the parameters that will be used to replace the corresponding placeholders in the message.
-	 * @param string $language the language code (e.g. `en_US`, `en`). If this is null, the current
-	 * [[\yii\base\Application::language|application language]] will be used.
+	 * @param string $language the language code (e.g. `en_US`, `en`).
 	 * @return string the translated message.
 	 */
-	public function translate($category, $message, $params = array(), $language = null)
+	public function translate($category, $message, $params, $language)
 	{
-		if ($language === null) {
-			$language = Yii::$app->language;
-		}
-
 		$message = $this->getMessageSource($category)->translate($category, $message, $language);
 
 		if (!is_array($params)) {

From 3833d62f00f0e0b5809056eb4349bfc65e18c4a2 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Fri, 7 Jun 2013 11:31:31 -0400
Subject: [PATCH 11/17] Response WIP

---
 framework/yii/web/Response.php | 98 ++----------------------------------------
 1 file changed, 4 insertions(+), 94 deletions(-)

diff --git a/framework/yii/web/Response.php b/framework/yii/web/Response.php
index 12c3f34..86978d5 100644
--- a/framework/yii/web/Response.php
+++ b/framework/yii/web/Response.php
@@ -158,105 +158,15 @@ class Response extends \yii\base\Response
 		return $this->_headers;
 	}
 
-	/**
-	 * Returns the current cache control setting as a string like sent in a header.
-	 * @return string the cache control setting, or null if there is no such header specified
-	 */
-	public function getCacheControl()
-	{
-		return $this->getHeaders()->get('Cache-Control');
-	}
-
-	/**
-	 * Sets the current cache control setting to be sent
-	 * @param string $value the cache control header value
-	 */
-	public function setCacheControl($value)
-	{
-		$this->getHeaders()->set('Cache-Control', $value);
-	}
-
-	/**
-	 * Gets the ETag header to be sent
-	 * @return string the ETag header, or false if none is set
-	 */
-	public function getEtag()
-	{
-		return $this->getHeaders()->get('ETag');
-	}
-
-	/**
-	 * Sets the ETag header to be sent
-	 * @param string $value the ETag header
-	 */
-	public function setEtag($value)
-	{
-		$this->getHeaders()->set('ETag', $value);
-	}
-
-	/**
-	 * Gets the last modified header to send
-	 * @return string the last modified header, or null if none is set
-	 */
-	public function getLastModified()
-	{
-		return $this->getHeaders()->get('Last-Modified');
-	}
-
-	/**
-	 * Sets the last modified header to send
-	 * @param integer $value the unix time of the last modified date
-	 */
-	public function setLastModified($value)
-	{
-		$this->getHeaders()->set('Last-Modified', $value);
-	}
-
-	/**
-	 * Gets the content type header to send
-	 * @return string the content type header, or null if none is set
-	 */
-	public function getContentType()
-	{
-		return $this->getHeaders()->get('Content-type');
-	}
-
-	/**
-	 * Sets the content type header to send
-	 * @param string $value the content type header
-	 */
-	public function setContentType($value)
-	{
-		$this->getHeaders()->set('Content-type', $value);
-	}
-
-	/**
-	 * Gets the content disposition header to send
-	 * @return string the content disposition, or null if none is set
-	 */
-	public function getContentDisposition()
-	{
-		return $this->getHeaders()->get('Content-Disposition');
-	}
-
-	/**
-	 * Sets the content disposition header to send
-	 * @param string $value the content disposition header
-	 */
-	public function setContentDisposition($value)
-	{
-		$this->getHeaders()->set('Content-Disposition', $value);
-	}
-
 	public function renderJson($data)
 	{
-		$this->setContentType('application/json');
+		$this->getHeaders()->set('content-type', 'application/json');
 		$this->content = Json::encode($data);
 	}
 
-	public function renderJsonp($callbackName, $data)
+	public function renderJsonp($data, $callbackName)
 	{
-		$this->setContentType('text/javascript');
+		$this->getHeaders()->set('content-type', 'text/javascript');
 		$data = Json::encode($data);
 		$this->content = "$callbackName($data);";
 	}
@@ -452,7 +362,7 @@ class Response extends \yii\base\Response
 		}
 
 		if (!isset($options['mimeType'])) {
-			if (($options['mimeType'] = CFileHelper::getMimeTypeByExtension($filePath)) === null) {
+			if (($options['mimeType'] = FileHelper::getMimeTypeByExtension($filePath)) === null) {
 				$options['mimeType'] = 'text/plain';
 			}
 		}

From d48ef4198ebd5e5107335091e94f4910384c3af0 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Fri, 7 Jun 2013 11:47:50 -0400
Subject: [PATCH 12/17] Minor refactoring of DbMessageSource.

---
 framework/yii/i18n/DbMessageSource.php | 35 ++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/framework/yii/i18n/DbMessageSource.php b/framework/yii/i18n/DbMessageSource.php
index 831cabb..14cf0b9 100644
--- a/framework/yii/i18n/DbMessageSource.php
+++ b/framework/yii/i18n/DbMessageSource.php
@@ -41,8 +41,6 @@ use yii\db\Query;
  * the translated messages. The name of these two tables can be customized by setting [[sourceMessageTable]]
  * and [[messageTable]], respectively.
  *
- * When [[cachingDuration]] is set as a positive number, message translations will be cached.
- *
  * @author resurtm <resurtm@gmail.com>
  * @since 2.0
  */
@@ -68,18 +66,23 @@ class DbMessageSource extends MessageSource
 	 */
 	public $cache = 'cache';
 	/**
-	 * @var string the name of the source message table. Defaults to `{{%source_message}}`.
+	 * @var string the name of the source message table.
 	 */
-	public $sourceMessageTable = '{{%source_message}}';
+	public $sourceMessageTable = 'tbl_source_message';
 	/**
-	 * @var string the name of the translated message table. Defaults to `{{%message}}`.
+	 * @var string the name of the translated message table.
 	 */
-	public $messageTable = '{{%message}}';
+	public $messageTable = 'tbl_message';
 	/**
 	 * @var integer the time in seconds that the messages can remain valid in cache.
-	 * Defaults to 0, meaning the caching is disabled.
+	 * Use 0 to indicate that the cached data will never expire.
+	 * @see enableCaching
 	 */
 	public $cachingDuration = 0;
+	/**
+	 * @var boolean whether to enable caching translated messages
+	 */
+	public $enableCaching = false;
 
 	/**
 	 * Initializes the DbMessageSource component.
@@ -96,7 +99,7 @@ class DbMessageSource extends MessageSource
 		if (!$this->db instanceof Connection) {
 			throw new InvalidConfigException("DbMessageSource::db must be either a DB connection instance or the application component ID of a DB connection.");
 		}
-		if ($this->cachingDuration > 0) {
+		if ($this->enableCaching) {
 			if (is_string($this->cache)) {
 				$this->cache = Yii::$app->getComponent($this->cache);
 			}
@@ -117,16 +120,20 @@ class DbMessageSource extends MessageSource
 	 */
 	protected function loadMessages($category, $language)
 	{
-		if ($this->cachingDuration === 0) {
-			return $this->retrieveMessages($category, $language);
-		} else {
-			$key = static::CACHE_KEY_PREFIX . ".messages.{$category}.{$language}";
+		if ($this->enableCaching) {
+			$key = array(
+				__CLASS__,
+				$category,
+				$language,
+			);
 			$messages = $this->cache->get($key);
 			if ($messages === false) {
-				$messages = $this->retrieveMessages($category, $language);
+				$messages = $this->loadMessagesFromDb($category, $language);
 				$this->cache->set($key, $messages, $this->cachingDuration);
 			}
 			return $messages;
+		} else {
+			return $this->loadMessagesFromDb($category, $language);
 		}
 	}
 
@@ -137,7 +144,7 @@ class DbMessageSource extends MessageSource
 	 * @param string $language the target language.
 	 * @return array the messages loaded from database.
 	 */
-	protected function retrieveMessages($category, $language)
+	protected function loadMessagesFromDb($category, $language)
 	{
 		$query = new Query();
 		$messages = $query->select(array('t1.message message', 't2.translation translation'))

From 7a7d2a9c06c099de8064729ca3fc95fb24241b75 Mon Sep 17 00:00:00 2001
From: resurtm <resurtm@gmail.com>
Date: Fri, 7 Jun 2013 22:41:11 +0600
Subject: [PATCH 13/17] CS fixes.

---
 framework/yii/base/ErrorHandler.php                |    2 +-
 framework/yii/base/Formatter.php                   |    1 -
 framework/yii/base/InvalidCallException.php        |    1 -
 framework/yii/base/InvalidConfigException.php      |    1 -
 framework/yii/base/InvalidParamException.php       |    1 -
 framework/yii/base/InvalidRouteException.php       |    1 -
 framework/yii/base/Jsonable.php                    |    2 +-
 framework/yii/base/Module.php                      | 1334 ++++++++++----------
 framework/yii/base/NotSupportedException.php       |    1 -
 framework/yii/base/Theme.php                       |    2 +-
 framework/yii/base/UnknownClassException.php       |    1 -
 framework/yii/base/UnknownMethodException.php      |    1 -
 framework/yii/base/UnknownPropertyException.php    |    1 -
 framework/yii/bootstrap/Button.php                 |    3 +-
 framework/yii/bootstrap/ButtonDropdown.php         |    2 +-
 framework/yii/bootstrap/ButtonGroup.php            |    1 -
 framework/yii/bootstrap/Collapse.php               |    2 +-
 framework/yii/bootstrap/Dropdown.php               |    1 -
 framework/yii/bootstrap/Nav.php                    |    2 +-
 framework/yii/bootstrap/Progress.php               |    1 -
 framework/yii/bootstrap/Widget.php                 |    1 -
 framework/yii/caching/DbCache.php                  |    2 +-
 framework/yii/caching/XCache.php                   |    1 -
 framework/yii/console/Exception.php                |    1 -
 .../yii/console/controllers/AssetController.php    |    5 +-
 .../yii/console/controllers/MessageController.php  |    3 +-
 .../yii/console/controllers/MigrateController.php  | 1270 +++++++++----------
 framework/yii/db/Connection.php                    |    5 +-
 framework/yii/debug/Module.php                     |    2 +-
 .../yii/debug/controllers/DefaultController.php    |    2 +-
 framework/yii/helpers/Json.php                     |    1 -
 framework/yii/helpers/base/Console.php             |    5 +-
 framework/yii/helpers/base/Html.php                |    1 -
 framework/yii/helpers/base/Inflector.php           |    6 +-
 framework/yii/i18n/MessageSource.php               |    1 -
 framework/yii/jui/Accordion.php                    |    2 +-
 framework/yii/jui/Menu.php                         |    1 -
 framework/yii/jui/Widget.php                       |    1 -
 framework/yii/rbac/DbManager.php                   |    3 +-
 framework/yii/rbac/PhpManager.php                  |    2 +-
 framework/yii/requirements/requirements.php        |    2 +-
 framework/yii/validators/CaptchaValidator.php      |    1 -
 framework/yii/validators/DateValidator.php         |    1 -
 framework/yii/validators/DefaultValueValidator.php |    1 -
 framework/yii/validators/ExistValidator.php        |    1 -
 framework/yii/validators/FilterValidator.php       |    1 +
 framework/yii/validators/RangeValidator.php        |    2 +-
 .../yii/validators/RegularExpressionValidator.php  |    2 +-
 framework/yii/validators/StringValidator.php       |    1 -
 framework/yii/validators/UrlValidator.php          |    2 +-
 framework/yii/validators/Validator.php             |    2 +-
 framework/yii/web/HeaderCollection.php             |    1 -
 framework/yii/web/PageCache.php                    |  206 +--
 framework/yii/web/Request.php                      |    1 -
 framework/yii/web/User.php                         |    2 +-
 framework/yii/widgets/FragmentCache.php            |  348 ++---
 framework/yii/widgets/ListPager.php                |    1 -
 57 files changed, 1611 insertions(+), 1640 deletions(-)

diff --git a/framework/yii/base/ErrorHandler.php b/framework/yii/base/ErrorHandler.php
index 8dc3fce..7bf9e7e 100644
--- a/framework/yii/base/ErrorHandler.php
+++ b/framework/yii/base/ErrorHandler.php
@@ -255,7 +255,7 @@ class ErrorHandler extends Component
 		if (isset($_SERVER['SERVER_SOFTWARE'])) {
 			foreach ($serverUrls as $url => $keywords) {
 				foreach ($keywords as $keyword) {
-					if (stripos($_SERVER['SERVER_SOFTWARE'], $keyword) !== false ) {
+					if (stripos($_SERVER['SERVER_SOFTWARE'], $keyword) !== false) {
 						return '<a href="' . $url . '" target="_blank">' . $this->htmlEncode($_SERVER['SERVER_SOFTWARE']) . '</a>';
 					}
 				}
diff --git a/framework/yii/base/Formatter.php b/framework/yii/base/Formatter.php
index e62039e..545f570 100644
--- a/framework/yii/base/Formatter.php
+++ b/framework/yii/base/Formatter.php
@@ -12,7 +12,6 @@ use DateTime;
 use yii\helpers\HtmlPurifier;
 use yii\helpers\Html;
 
-
 /**
  * Formatter provides a set of commonly used data formatting methods.
  *
diff --git a/framework/yii/base/InvalidCallException.php b/framework/yii/base/InvalidCallException.php
index 9a146d4..73cb4b9 100644
--- a/framework/yii/base/InvalidCallException.php
+++ b/framework/yii/base/InvalidCallException.php
@@ -23,4 +23,3 @@ class InvalidCallException extends Exception
 		return \Yii::t('yii', 'Invalid Call');
 	}
 }
-
diff --git a/framework/yii/base/InvalidConfigException.php b/framework/yii/base/InvalidConfigException.php
index c617381..0a6b4c5 100644
--- a/framework/yii/base/InvalidConfigException.php
+++ b/framework/yii/base/InvalidConfigException.php
@@ -23,4 +23,3 @@ class InvalidConfigException extends Exception
 		return \Yii::t('yii', 'Invalid Configuration');
 	}
 }
-
diff --git a/framework/yii/base/InvalidParamException.php b/framework/yii/base/InvalidParamException.php
index 0262051..44430a8 100644
--- a/framework/yii/base/InvalidParamException.php
+++ b/framework/yii/base/InvalidParamException.php
@@ -23,4 +23,3 @@ class InvalidParamException extends Exception
 		return \Yii::t('yii', 'Invalid Parameter');
 	}
 }
-
diff --git a/framework/yii/base/InvalidRouteException.php b/framework/yii/base/InvalidRouteException.php
index a573636..fbcc087 100644
--- a/framework/yii/base/InvalidRouteException.php
+++ b/framework/yii/base/InvalidRouteException.php
@@ -23,4 +23,3 @@ class InvalidRouteException extends UserException
 		return \Yii::t('yii', 'Invalid Route');
 	}
 }
-
diff --git a/framework/yii/base/Jsonable.php b/framework/yii/base/Jsonable.php
index 4a3f7d9..e9425a6 100644
--- a/framework/yii/base/Jsonable.php
+++ b/framework/yii/base/Jsonable.php
@@ -18,5 +18,5 @@ interface Jsonable
 	/**
 	 * @return string the JSON representation of this object
 	 */
-	function toJson();
+	public function toJson();
 }
diff --git a/framework/yii/base/Module.php b/framework/yii/base/Module.php
index 5f5c376..cc7c849 100644
--- a/framework/yii/base/Module.php
+++ b/framework/yii/base/Module.php
@@ -1,667 +1,667 @@
-<?php
-/**
- * @link http://www.yiiframework.com/
- * @copyright Copyright (c) 2008 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-namespace yii\base;
-
-use Yii;
-
-/**
- * Module is the base class for module and application classes.
- *
- * A module represents a sub-application which contains MVC elements by itself, such as
- * models, views, controllers, etc.
- *
- * A module may consist of [[modules|sub-modules]].
- *
- * [[components|Components]] may be registered with the module so that they are globally
- * accessible within the module.
- *
- * @property string $uniqueId An ID that uniquely identifies this module among all modules within
- * the current application.
- * @property string $basePath The root directory of the module. Defaults to the directory containing the module class.
- * @property string $controllerPath The directory containing the controller classes. Defaults to "[[basePath]]/controllers".
- * @property string $viewPath The directory containing the view files within this module. Defaults to "[[basePath]]/views".
- * @property string $layoutPath The directory containing the layout view files within this module. Defaults to "[[viewPath]]/layouts".
- * @property array $modules The configuration of the currently installed modules (module ID => configuration).
- * @property array $components The components (indexed by their IDs) registered within this module.
- * @property array $import List of aliases to be imported. This property is write-only.
- * @property array $aliases List of aliases to be defined. This property is write-only.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @since 2.0
- */
-abstract class Module extends Component
-{
-	/**
-	 * @event ActionEvent an event raised before executing a controller action.
-	 * You may set [[ActionEvent::isValid]] to be false to cancel the action execution.
-	 */
-	const EVENT_BEFORE_ACTION = 'beforeAction';
-	/**
-	 * @event ActionEvent an event raised after executing a controller action.
-	 */
-	const EVENT_AFTER_ACTION = 'afterAction';
-	/**
-	 * @var array custom module parameters (name => value).
-	 */
-	public $params = array();
-	/**
-	 * @var array the IDs of the components that should be preloaded when this module is created.
-	 */
-	public $preload = array();
-	/**
-	 * @var string an ID that uniquely identifies this module among other modules which have the same [[module|parent]].
-	 */
-	public $id;
-	/**
-	 * @var Module the parent module of this module. Null if this module does not have a parent.
-	 */
-	public $module;
-	/**
-	 * @var string|boolean the layout that should be applied for views within this module. This refers to a view name
-	 * relative to [[layoutPath]]. If this is not set, it means the layout value of the [[module|parent module]]
-	 * will be taken. If this is false, layout will be disabled within this module.
-	 */
-	public $layout;
-	/**
-	 * @var array mapping from controller ID to controller configurations.
-	 * Each name-value pair specifies the configuration of a single controller.
-	 * A controller configuration can be either a string or an array.
-	 * If the former, the string should be the class name or path alias of the controller.
-	 * If the latter, the array must contain a 'class' element which specifies
-	 * the controller's class name or path alias, and the rest of the name-value pairs
-	 * in the array are used to initialize the corresponding controller properties. For example,
-	 *
-	 * ~~~
-	 * array(
-	 *   'account' => '@app/controllers/UserController',
-	 *   'article' => array(
-	 *      'class' => '@app/controllers/PostController',
-	 *      'pageTitle' => 'something new',
-	 *   ),
-	 * )
-	 * ~~~
-	 */
-	public $controllerMap = array();
-	/**
-	 * @var string the namespace that controller classes are in. If not set,
-	 * it will use the "controllers" sub-namespace under the namespace of this module.
-	 * For example, if the namespace of this module is "foo\bar", then the default
-	 * controller namespace would be "foo\bar\controllers".
-	 * If the module is an application, it will default to "app\controllers".
-	 */
-	public $controllerNamespace;
-	/**
-	 * @return string the default route of this module. Defaults to 'default'.
-	 * The route may consist of child module ID, controller ID, and/or action ID.
-	 * For example, `help`, `post/create`, `admin/post/create`.
-	 * If action ID is not given, it will take the default value as specified in
-	 * [[Controller::defaultAction]].
-	 */
-	public $defaultRoute = 'default';
-	/**
-	 * @var string the root directory of the module.
-	 */
-	private $_basePath;
-	/**
-	 * @var string the root directory that contains view files for this module
-	 */
-	private $_viewPath;
-	/**
-	 * @var string the root directory that contains layout view files for this module.
-	 */
-	private $_layoutPath;
-	/**
-	 * @var string the directory containing controller classes in the module.
-	 */
-	private $_controllerPath;
-	/**
-	 * @var array child modules of this module
-	 */
-	private $_modules = array();
-	/**
-	 * @var array components registered under this module
-	 */
-	private $_components = array();
-
-	/**
-	 * Constructor.
-	 * @param string $id the ID of this module
-	 * @param Module $parent the parent module (if any)
-	 * @param array $config name-value pairs that will be used to initialize the object properties
-	 */
-	public function __construct($id, $parent = null, $config = array())
-	{
-		$this->id = $id;
-		$this->module = $parent;
-		parent::__construct($config);
-	}
-
-	/**
-	 * Getter magic method.
-	 * This method is overridden to support accessing components
-	 * like reading module properties.
-	 * @param string $name component or property name
-	 * @return mixed the named property value
-	 */
-	public function __get($name)
-	{
-		if ($this->hasComponent($name)) {
-			return $this->getComponent($name);
-		} else {
-			return parent::__get($name);
-		}
-	}
-
-	/**
-	 * Checks if a property value is null.
-	 * This method overrides the parent implementation by checking
-	 * if the named component is loaded.
-	 * @param string $name the property name or the event name
-	 * @return boolean whether the property value is null
-	 */
-	public function __isset($name)
-	{
-		if ($this->hasComponent($name)) {
-			return $this->getComponent($name) !== null;
-		} else {
-			return parent::__isset($name);
-		}
-	}
-
-	/**
-	 * Initializes the module.
-	 * This method is called after the module is created and initialized with property values
-	 * given in configuration. The default implement will create a path alias using the module [[id]]
-	 * and then call [[preloadComponents()]] to load components that are declared in [[preload]].
-	 */
-	public function init()
-	{
-		$this->preloadComponents();
-		if ($this->controllerNamespace === null) {
-			if ($this instanceof Application) {
-				$this->controllerNamespace = 'app\\controllers';
-			} else {
-				$class = get_class($this);
-				if (($pos = strrpos($class, '\\')) !== false) {
-					$this->controllerNamespace = substr($class, 0, $pos) . '\\controllers';
-				}
-			}
-		}
-	}
-
-	/**
-	 * Returns an ID that uniquely identifies this module among all modules within the current application.
-	 * Note that if the module is an application, an empty string will be returned.
-	 * @return string the unique ID of the module.
-	 */
-	public function getUniqueId()
-	{
-		if ($this instanceof Application) {
-			return '';
-		} elseif ($this->module) {
-			return $this->module->getUniqueId() . '/' . $this->id;
-		} else {
-			return $this->id;
-		}
-	}
-
-	/**
-	 * Returns the root directory of the module.
-	 * It defaults to the directory containing the module class file.
-	 * @return string the root directory of the module.
-	 */
-	public function getBasePath()
-	{
-		if ($this->_basePath === null) {
-			$class = new \ReflectionClass($this);
-			$this->_basePath = dirname($class->getFileName());
-		}
-		return $this->_basePath;
-	}
-
-	/**
-	 * Sets the root directory of the module.
-	 * This method can only be invoked at the beginning of the constructor.
-	 * @param string $path the root directory of the module. This can be either a directory name or a path alias.
-	 * @throws InvalidParamException if the directory does not exist.
-	 */
-	public function setBasePath($path)
-	{
-		$path = Yii::getAlias($path);
-		$p = realpath($path);
-		if ($p !== false && is_dir($p)) {
-			$this->_basePath = $p;
-			if ($this instanceof Application) {
-				Yii::setAlias('@app', $p);
-			}
-		} else {
-			throw new InvalidParamException("The directory does not exist: $path");
-		}
-	}
-
-	/**
-	 * Returns the directory that contains the controller classes.
-	 * Defaults to "[[basePath]]/controllers".
-	 * @return string the directory that contains the controller classes.
-	 */
-	public function getControllerPath()
-	{
-		if ($this->_controllerPath !== null) {
-			return $this->_controllerPath;
-		} else {
-			return $this->_controllerPath = $this->getBasePath() . DIRECTORY_SEPARATOR . 'controllers';
-		}
-	}
-
-	/**
-	 * Sets the directory that contains the controller classes.
-	 * @param string $path the directory that contains the controller classes.
-	 * This can be either a directory name or a path alias.
-	 * @throws Exception if the directory is invalid
-	 */
-	public function setControllerPath($path)
-	{
-		$this->_controllerPath = Yii::getAlias($path);
-	}
-
-	/**
-	 * Returns the directory that contains the view files for this module.
-	 * @return string the root directory of view files. Defaults to "[[basePath]]/view".
-	 */
-	public function getViewPath()
-	{
-		if ($this->_viewPath !== null) {
-			return $this->_viewPath;
-		} else {
-			return $this->_viewPath = $this->getBasePath() . DIRECTORY_SEPARATOR . 'views';
-		}
-	}
-
-	/**
-	 * Sets the directory that contains the view files.
-	 * @param string $path the root directory of view files.
-	 * @throws Exception if the directory is invalid
-	 */
-	public function setViewPath($path)
-	{
-		$this->_viewPath = Yii::getAlias($path);
-	}
-
-	/**
-	 * Returns the directory that contains layout view files for this module.
-	 * @return string the root directory of layout files. Defaults to "[[viewPath]]/layouts".
-	 */
-	public function getLayoutPath()
-	{
-		if ($this->_layoutPath !== null) {
-			return $this->_layoutPath;
-		} else {
-			return $this->_layoutPath = $this->getViewPath() . DIRECTORY_SEPARATOR . 'layouts';
-		}
-	}
-
-	/**
-	 * Sets the directory that contains the layout files.
-	 * @param string $path the root directory of layout files.
-	 * @throws Exception if the directory is invalid
-	 */
-	public function setLayoutPath($path)
-	{
-		$this->_layoutPath = Yii::getAlias($path);
-	}
-
-	/**
-	 * Defines path aliases.
-	 * This method calls [[Yii::setAlias()]] to register the path aliases.
-	 * This method is provided so that you can define path aliases when configuring a module.
-	 * @param array $aliases list of path aliases to be defined. The array keys are alias names
-	 * (must start with '@') and the array values are the corresponding paths or aliases.
-	 * For example,
-	 *
-	 * ~~~
-	 * array(
-	 *	'@models' => '@app/models', // an existing alias
-	 *	'@backend' => __DIR__ . '/../backend',  // a directory
-	 * )
-	 * ~~~
-	 */
-	public function setAliases($aliases)
-	{
-		foreach ($aliases as $name => $alias) {
-			Yii::setAlias($name, $alias);
-		}
-	}
-
-	/**
-	 * Checks whether the named module exists.
-	 * @param string $id module ID
-	 * @return boolean whether the named module exists. Both loaded and unloaded modules
-	 * are considered.
-	 */
-	public function hasModule($id)
-	{
-		return isset($this->_modules[$id]);
-	}
-
-	/**
-	 * Retrieves the named module.
-	 * @param string $id module ID (case-sensitive)
-	 * @param boolean $load whether to load the module if it is not yet loaded.
-	 * @return Module|null the module instance, null if the module
-	 * does not exist.
-	 * @see hasModule()
-	 */
-	public function getModule($id, $load = true)
-	{
-		if (isset($this->_modules[$id])) {
-			if ($this->_modules[$id] instanceof Module) {
-				return $this->_modules[$id];
-			} elseif ($load) {
-				Yii::trace("Loading module: $id", __METHOD__);
-				return $this->_modules[$id] = Yii::createObject($this->_modules[$id], $id, $this);
-			}
-		}
-		return null;
-	}
-
-	/**
-	 * Adds a sub-module to this module.
-	 * @param string $id module ID
-	 * @param Module|array|null $module the sub-module to be added to this module. This can
-	 * be one of the followings:
-	 *
-	 * - a [[Module]] object
-	 * - a configuration array: when [[getModule()]] is called initially, the array
-	 *   will be used to instantiate the sub-module
-	 * - null: the named sub-module will be removed from this module
-	 */
-	public function setModule($id, $module)
-	{
-		if ($module === null) {
-			unset($this->_modules[$id]);
-		} else {
-			$this->_modules[$id] = $module;
-		}
-	}
-
-	/**
-	 * Returns the sub-modules in this module.
-	 * @param boolean $loadedOnly whether to return the loaded sub-modules only. If this is set false,
-	 * then all sub-modules registered in this module will be returned, whether they are loaded or not.
-	 * Loaded modules will be returned as objects, while unloaded modules as configuration arrays.
-	 * @return array the modules (indexed by their IDs)
-	 */
-	public function getModules($loadedOnly = false)
-	{
-		if ($loadedOnly) {
-			$modules = array();
-			foreach ($this->_modules as $module) {
-				if ($module instanceof Module) {
-					$modules[] = $module;
-				}
-			}
-			return $modules;
-		} else {
-			return $this->_modules;
-		}
-	}
-
-	/**
-	 * Registers sub-modules in the current module.
-	 *
-	 * Each sub-module should be specified as a name-value pair, where
-	 * name refers to the ID of the module and value the module or a configuration
-	 * array that can be used to create the module. In the latter case, [[Yii::createObject()]]
-	 * will be used to create the module.
-	 *
-	 * If a new sub-module has the same ID as an existing one, the existing one will be overwritten silently.
-	 *
-	 * The following is an example for registering two sub-modules:
-	 *
-	 * ~~~
-	 * array(
-	 *     'comment' => array(
-	 *         'class' => 'app\modules\comment\CommentModule',
-	 *         'db' => 'db',
-	 *     ),
-	 *     'booking' => array(
-	 *         'class' => 'app\modules\booking\BookingModule',
-	 *     ),
-	 * )
-	 * ~~~
-	 *
-	 * @param array $modules modules (id => module configuration or instances)
-	 */
-	public function setModules($modules)
-	{
-		foreach ($modules as $id => $module) {
-			$this->_modules[$id] = $module;
-		}
-	}
-
-	/**
-	 * Checks whether the named component exists.
-	 * @param string $id component ID
-	 * @return boolean whether the named component exists. Both loaded and unloaded components
-	 * are considered.
-	 */
-	public function hasComponent($id)
-	{
-		return isset($this->_components[$id]);
-	}
-
-	/**
-	 * Retrieves the named component.
-	 * @param string $id component ID (case-sensitive)
-	 * @param boolean $load whether to load the component if it is not yet loaded.
-	 * @return Component|null the component instance, null if the component does not exist.
-	 * @see hasComponent()
-	 */
-	public function getComponent($id, $load = true)
-	{
-		if (isset($this->_components[$id])) {
-			if ($this->_components[$id] instanceof Object) {
-				return $this->_components[$id];
-			} elseif ($load) {
-				Yii::trace("Loading component: $id", __METHOD__);
-				return $this->_components[$id] = Yii::createObject($this->_components[$id]);
-			}
-		}
-		return null;
-	}
-
-	/**
-	 * Registers a component with this module.
-	 * @param string $id component ID
-	 * @param Component|array|null $component the component to be registered with the module. This can
-	 * be one of the followings:
-	 *
-	 * - a [[Component]] object
-	 * - a configuration array: when [[getComponent()]] is called initially for this component, the array
-	 *   will be used to instantiate the component via [[Yii::createObject()]].
-	 * - null: the named component will be removed from the module
-	 */
-	public function setComponent($id, $component)
-	{
-		if ($component === null) {
-			unset($this->_components[$id]);
-		} else {
-			$this->_components[$id] = $component;
-		}
-	}
-
-	/**
-	 * Returns the registered components.
-	 * @param boolean $loadedOnly whether to return the loaded components only. If this is set false,
-	 * then all components specified in the configuration will be returned, whether they are loaded or not.
-	 * Loaded components will be returned as objects, while unloaded components as configuration arrays.
-	 * @return array the components (indexed by their IDs)
-	 */
-	public function getComponents($loadedOnly = false)
-	{
-		if ($loadedOnly) {
-			$components = array();
-			foreach ($this->_components as $component) {
-				if ($component instanceof Component) {
-					$components[] = $component;
-				}
-			}
-			return $components;
-		} else {
-			return $this->_components;
-		}
-	}
-
-	/**
-	 * Registers a set of components in this module.
-	 *
-	 * Each component should be specified as a name-value pair, where
-	 * name refers to the ID of the component and value the component or a configuration
-	 * array that can be used to create the component. In the latter case, [[Yii::createObject()]]
-	 * will be used to create the component.
-	 *
-	 * If a new component has the same ID as an existing one, the existing one will be overwritten silently.
-	 *
-	 * The following is an example for setting two components:
-	 *
-	 * ~~~
-	 * array(
-	 *     'db' => array(
-	 *         'class' => 'yii\db\Connection',
-	 *         'dsn' => 'sqlite:path/to/file.db',
-	 *     ),
-	 *     'cache' => array(
-	 *         'class' => 'yii\caching\DbCache',
-	 *         'db' => 'db',
-	 *     ),
-	 * )
-	 * ~~~
-	 *
-	 * @param array $components components (id => component configuration or instance)
-	 */
-	public function setComponents($components)
-	{
-		foreach ($components as $id => $component) {
-			if (isset($this->_components[$id]['class']) && !isset($component['class'])) {
-				$component['class'] = $this->_components[$id]['class'];
-			}
-			$this->_components[$id] = $component;
-		}
-	}
-
-	/**
-	 * Loads components that are declared in [[preload]].
-	 */
-	public function preloadComponents()
-	{
-		foreach ($this->preload as $id) {
-			$this->getComponent($id);
-		}
-	}
-
-	/**
-	 * Runs a controller action specified by a route.
-	 * This method parses the specified route and creates the corresponding child module(s), controller and action
-	 * instances. It then calls [[Controller::runAction()]] to run the action with the given parameters.
-	 * If the route is empty, the method will use [[defaultRoute]].
-	 * @param string $route the route that specifies the action.
-	 * @param array $params the parameters to be passed to the action
-	 * @return integer the status code returned by the action execution. 0 means normal, and other values mean abnormal.
-	 * @throws InvalidRouteException if the requested route cannot be resolved into an action successfully
-	 */
-	public function runAction($route, $params = array())
-	{
-		$result = $this->createController($route);
-		if (is_array($result)) {
-			/** @var $controller Controller */
-			list($controller, $actionID) = $result;
-			$oldController = Yii::$app->controller;
-			Yii::$app->controller = $controller;
-			$status = $controller->runAction($actionID, $params);
-			Yii::$app->controller = $oldController;
-			return $status;
-		} else {
-			throw new InvalidRouteException('Unable to resolve the request "' . trim($this->getUniqueId() . '/' . $route, '/') . '".');
-		}
-	}
-
-	/**
-	 * Creates a controller instance based on the controller ID.
-	 *
-	 * The controller is created within this module. The method first attempts to
-	 * create the controller based on the [[controllerMap]] of the module. If not available,
-	 * it will look for the controller class under the [[controllerPath]] and create an
-	 * instance of it.
-	 *
-	 * @param string $route the route consisting of module, controller and action IDs.
-	 * @return array|boolean If the controller is created successfully, it will be returned together
-	 * with the requested action ID. Otherwise false will be returned.
-	 * @throws InvalidConfigException if the controller class and its file do not match.
-	 */
-	public function createController($route)
-	{
-		if ($route === '') {
-			$route = $this->defaultRoute;
-		}
-		$route = trim($route, '/');
-		if (($pos = strpos($route, '/')) !== false) {
-			$id = substr($route, 0, $pos);
-			$route = substr($route, $pos + 1);
-		} else {
-			$id = $route;
-			$route = '';
-		}
-
-		$module = $this->getModule($id);
-		if ($module !== null) {
-			return $module->createController($route);
-		}
-
-		if (isset($this->controllerMap[$id])) {
-			$controller = Yii::createObject($this->controllerMap[$id], $id, $this);
-		} elseif (preg_match('/^[a-z0-9\\-_]+$/', $id)) {
-			$className = str_replace(' ', '', ucwords(implode(' ', explode('-', $id)))) . 'Controller';
-			$classFile = $this->controllerPath . DIRECTORY_SEPARATOR . $className . '.php';
-			if (!is_file($classFile)) {
-				return false;
-			}
-			$className = ltrim($this->controllerNamespace . '\\' . $className, '\\');
-			Yii::$classMap[$className] = $classFile;
-			if (is_subclass_of($className, 'yii\base\Controller')) {
-				$controller = new $className($id, $this);
-			} elseif (YII_DEBUG) {
-				throw new InvalidConfigException("Controller class must extend from \\yii\\base\\Controller.");
-			}
-		}
-
-		return isset($controller) ? array($controller, $route) : false;
-	}
-
-	/**
-	 * This method is invoked right before an action is to be executed (after all possible filters.)
-	 * You may override this method to do last-minute preparation for the action.
-	 * @param Action $action the action to be executed.
-	 * @return boolean whether the action should continue to be executed.
-	 */
-	public function beforeAction($action)
-	{
-		$event = new ActionEvent($action);
-		$this->trigger(self::EVENT_BEFORE_ACTION, $event);
-		return $event->isValid;
-	}
-
-	/**
-	 * This method is invoked right after an action is executed.
-	 * You may override this method to do some postprocessing for the action.
-	 * @param Action $action the action just executed.
-	 */
-	public function afterAction($action)
-	{
-		$this->trigger(self::EVENT_AFTER_ACTION, new ActionEvent($action));
-	}
-}
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\base;
+
+use Yii;
+
+/**
+ * Module is the base class for module and application classes.
+ *
+ * A module represents a sub-application which contains MVC elements by itself, such as
+ * models, views, controllers, etc.
+ *
+ * A module may consist of [[modules|sub-modules]].
+ *
+ * [[components|Components]] may be registered with the module so that they are globally
+ * accessible within the module.
+ *
+ * @property string $uniqueId An ID that uniquely identifies this module among all modules within
+ * the current application.
+ * @property string $basePath The root directory of the module. Defaults to the directory containing the module class.
+ * @property string $controllerPath The directory containing the controller classes. Defaults to "[[basePath]]/controllers".
+ * @property string $viewPath The directory containing the view files within this module. Defaults to "[[basePath]]/views".
+ * @property string $layoutPath The directory containing the layout view files within this module. Defaults to "[[viewPath]]/layouts".
+ * @property array $modules The configuration of the currently installed modules (module ID => configuration).
+ * @property array $components The components (indexed by their IDs) registered within this module.
+ * @property array $import List of aliases to be imported. This property is write-only.
+ * @property array $aliases List of aliases to be defined. This property is write-only.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+abstract class Module extends Component
+{
+	/**
+	 * @event ActionEvent an event raised before executing a controller action.
+	 * You may set [[ActionEvent::isValid]] to be false to cancel the action execution.
+	 */
+	const EVENT_BEFORE_ACTION = 'beforeAction';
+	/**
+	 * @event ActionEvent an event raised after executing a controller action.
+	 */
+	const EVENT_AFTER_ACTION = 'afterAction';
+	/**
+	 * @var array custom module parameters (name => value).
+	 */
+	public $params = array();
+	/**
+	 * @var array the IDs of the components that should be preloaded when this module is created.
+	 */
+	public $preload = array();
+	/**
+	 * @var string an ID that uniquely identifies this module among other modules which have the same [[module|parent]].
+	 */
+	public $id;
+	/**
+	 * @var Module the parent module of this module. Null if this module does not have a parent.
+	 */
+	public $module;
+	/**
+	 * @var string|boolean the layout that should be applied for views within this module. This refers to a view name
+	 * relative to [[layoutPath]]. If this is not set, it means the layout value of the [[module|parent module]]
+	 * will be taken. If this is false, layout will be disabled within this module.
+	 */
+	public $layout;
+	/**
+	 * @var array mapping from controller ID to controller configurations.
+	 * Each name-value pair specifies the configuration of a single controller.
+	 * A controller configuration can be either a string or an array.
+	 * If the former, the string should be the class name or path alias of the controller.
+	 * If the latter, the array must contain a 'class' element which specifies
+	 * the controller's class name or path alias, and the rest of the name-value pairs
+	 * in the array are used to initialize the corresponding controller properties. For example,
+	 *
+	 * ~~~
+	 * array(
+	 *   'account' => '@app/controllers/UserController',
+	 *   'article' => array(
+	 *      'class' => '@app/controllers/PostController',
+	 *      'pageTitle' => 'something new',
+	 *   ),
+	 * )
+	 * ~~~
+	 */
+	public $controllerMap = array();
+	/**
+	 * @var string the namespace that controller classes are in. If not set,
+	 * it will use the "controllers" sub-namespace under the namespace of this module.
+	 * For example, if the namespace of this module is "foo\bar", then the default
+	 * controller namespace would be "foo\bar\controllers".
+	 * If the module is an application, it will default to "app\controllers".
+	 */
+	public $controllerNamespace;
+	/**
+	 * @return string the default route of this module. Defaults to 'default'.
+	 * The route may consist of child module ID, controller ID, and/or action ID.
+	 * For example, `help`, `post/create`, `admin/post/create`.
+	 * If action ID is not given, it will take the default value as specified in
+	 * [[Controller::defaultAction]].
+	 */
+	public $defaultRoute = 'default';
+	/**
+	 * @var string the root directory of the module.
+	 */
+	private $_basePath;
+	/**
+	 * @var string the root directory that contains view files for this module
+	 */
+	private $_viewPath;
+	/**
+	 * @var string the root directory that contains layout view files for this module.
+	 */
+	private $_layoutPath;
+	/**
+	 * @var string the directory containing controller classes in the module.
+	 */
+	private $_controllerPath;
+	/**
+	 * @var array child modules of this module
+	 */
+	private $_modules = array();
+	/**
+	 * @var array components registered under this module
+	 */
+	private $_components = array();
+
+	/**
+	 * Constructor.
+	 * @param string $id the ID of this module
+	 * @param Module $parent the parent module (if any)
+	 * @param array $config name-value pairs that will be used to initialize the object properties
+	 */
+	public function __construct($id, $parent = null, $config = array())
+	{
+		$this->id = $id;
+		$this->module = $parent;
+		parent::__construct($config);
+	}
+
+	/**
+	 * Getter magic method.
+	 * This method is overridden to support accessing components
+	 * like reading module properties.
+	 * @param string $name component or property name
+	 * @return mixed the named property value
+	 */
+	public function __get($name)
+	{
+		if ($this->hasComponent($name)) {
+			return $this->getComponent($name);
+		} else {
+			return parent::__get($name);
+		}
+	}
+
+	/**
+	 * Checks if a property value is null.
+	 * This method overrides the parent implementation by checking
+	 * if the named component is loaded.
+	 * @param string $name the property name or the event name
+	 * @return boolean whether the property value is null
+	 */
+	public function __isset($name)
+	{
+		if ($this->hasComponent($name)) {
+			return $this->getComponent($name) !== null;
+		} else {
+			return parent::__isset($name);
+		}
+	}
+
+	/**
+	 * Initializes the module.
+	 * This method is called after the module is created and initialized with property values
+	 * given in configuration. The default implement will create a path alias using the module [[id]]
+	 * and then call [[preloadComponents()]] to load components that are declared in [[preload]].
+	 */
+	public function init()
+	{
+		$this->preloadComponents();
+		if ($this->controllerNamespace === null) {
+			if ($this instanceof Application) {
+				$this->controllerNamespace = 'app\\controllers';
+			} else {
+				$class = get_class($this);
+				if (($pos = strrpos($class, '\\')) !== false) {
+					$this->controllerNamespace = substr($class, 0, $pos) . '\\controllers';
+				}
+			}
+		}
+	}
+
+	/**
+	 * Returns an ID that uniquely identifies this module among all modules within the current application.
+	 * Note that if the module is an application, an empty string will be returned.
+	 * @return string the unique ID of the module.
+	 */
+	public function getUniqueId()
+	{
+		if ($this instanceof Application) {
+			return '';
+		} elseif ($this->module) {
+			return $this->module->getUniqueId() . '/' . $this->id;
+		} else {
+			return $this->id;
+		}
+	}
+
+	/**
+	 * Returns the root directory of the module.
+	 * It defaults to the directory containing the module class file.
+	 * @return string the root directory of the module.
+	 */
+	public function getBasePath()
+	{
+		if ($this->_basePath === null) {
+			$class = new \ReflectionClass($this);
+			$this->_basePath = dirname($class->getFileName());
+		}
+		return $this->_basePath;
+	}
+
+	/**
+	 * Sets the root directory of the module.
+	 * This method can only be invoked at the beginning of the constructor.
+	 * @param string $path the root directory of the module. This can be either a directory name or a path alias.
+	 * @throws InvalidParamException if the directory does not exist.
+	 */
+	public function setBasePath($path)
+	{
+		$path = Yii::getAlias($path);
+		$p = realpath($path);
+		if ($p !== false && is_dir($p)) {
+			$this->_basePath = $p;
+			if ($this instanceof Application) {
+				Yii::setAlias('@app', $p);
+			}
+		} else {
+			throw new InvalidParamException("The directory does not exist: $path");
+		}
+	}
+
+	/**
+	 * Returns the directory that contains the controller classes.
+	 * Defaults to "[[basePath]]/controllers".
+	 * @return string the directory that contains the controller classes.
+	 */
+	public function getControllerPath()
+	{
+		if ($this->_controllerPath !== null) {
+			return $this->_controllerPath;
+		} else {
+			return $this->_controllerPath = $this->getBasePath() . DIRECTORY_SEPARATOR . 'controllers';
+		}
+	}
+
+	/**
+	 * Sets the directory that contains the controller classes.
+	 * @param string $path the directory that contains the controller classes.
+	 * This can be either a directory name or a path alias.
+	 * @throws Exception if the directory is invalid
+	 */
+	public function setControllerPath($path)
+	{
+		$this->_controllerPath = Yii::getAlias($path);
+	}
+
+	/**
+	 * Returns the directory that contains the view files for this module.
+	 * @return string the root directory of view files. Defaults to "[[basePath]]/view".
+	 */
+	public function getViewPath()
+	{
+		if ($this->_viewPath !== null) {
+			return $this->_viewPath;
+		} else {
+			return $this->_viewPath = $this->getBasePath() . DIRECTORY_SEPARATOR . 'views';
+		}
+	}
+
+	/**
+	 * Sets the directory that contains the view files.
+	 * @param string $path the root directory of view files.
+	 * @throws Exception if the directory is invalid
+	 */
+	public function setViewPath($path)
+	{
+		$this->_viewPath = Yii::getAlias($path);
+	}
+
+	/**
+	 * Returns the directory that contains layout view files for this module.
+	 * @return string the root directory of layout files. Defaults to "[[viewPath]]/layouts".
+	 */
+	public function getLayoutPath()
+	{
+		if ($this->_layoutPath !== null) {
+			return $this->_layoutPath;
+		} else {
+			return $this->_layoutPath = $this->getViewPath() . DIRECTORY_SEPARATOR . 'layouts';
+		}
+	}
+
+	/**
+	 * Sets the directory that contains the layout files.
+	 * @param string $path the root directory of layout files.
+	 * @throws Exception if the directory is invalid
+	 */
+	public function setLayoutPath($path)
+	{
+		$this->_layoutPath = Yii::getAlias($path);
+	}
+
+	/**
+	 * Defines path aliases.
+	 * This method calls [[Yii::setAlias()]] to register the path aliases.
+	 * This method is provided so that you can define path aliases when configuring a module.
+	 * @param array $aliases list of path aliases to be defined. The array keys are alias names
+	 * (must start with '@') and the array values are the corresponding paths or aliases.
+	 * For example,
+	 *
+	 * ~~~
+	 * array(
+	 *	'@models' => '@app/models', // an existing alias
+	 *	'@backend' => __DIR__ . '/../backend',  // a directory
+	 * )
+	 * ~~~
+	 */
+	public function setAliases($aliases)
+	{
+		foreach ($aliases as $name => $alias) {
+			Yii::setAlias($name, $alias);
+		}
+	}
+
+	/**
+	 * Checks whether the named module exists.
+	 * @param string $id module ID
+	 * @return boolean whether the named module exists. Both loaded and unloaded modules
+	 * are considered.
+	 */
+	public function hasModule($id)
+	{
+		return isset($this->_modules[$id]);
+	}
+
+	/**
+	 * Retrieves the named module.
+	 * @param string $id module ID (case-sensitive)
+	 * @param boolean $load whether to load the module if it is not yet loaded.
+	 * @return Module|null the module instance, null if the module
+	 * does not exist.
+	 * @see hasModule()
+	 */
+	public function getModule($id, $load = true)
+	{
+		if (isset($this->_modules[$id])) {
+			if ($this->_modules[$id] instanceof Module) {
+				return $this->_modules[$id];
+			} elseif ($load) {
+				Yii::trace("Loading module: $id", __METHOD__);
+				return $this->_modules[$id] = Yii::createObject($this->_modules[$id], $id, $this);
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Adds a sub-module to this module.
+	 * @param string $id module ID
+	 * @param Module|array|null $module the sub-module to be added to this module. This can
+	 * be one of the followings:
+	 *
+	 * - a [[Module]] object
+	 * - a configuration array: when [[getModule()]] is called initially, the array
+	 *   will be used to instantiate the sub-module
+	 * - null: the named sub-module will be removed from this module
+	 */
+	public function setModule($id, $module)
+	{
+		if ($module === null) {
+			unset($this->_modules[$id]);
+		} else {
+			$this->_modules[$id] = $module;
+		}
+	}
+
+	/**
+	 * Returns the sub-modules in this module.
+	 * @param boolean $loadedOnly whether to return the loaded sub-modules only. If this is set false,
+	 * then all sub-modules registered in this module will be returned, whether they are loaded or not.
+	 * Loaded modules will be returned as objects, while unloaded modules as configuration arrays.
+	 * @return array the modules (indexed by their IDs)
+	 */
+	public function getModules($loadedOnly = false)
+	{
+		if ($loadedOnly) {
+			$modules = array();
+			foreach ($this->_modules as $module) {
+				if ($module instanceof Module) {
+					$modules[] = $module;
+				}
+			}
+			return $modules;
+		} else {
+			return $this->_modules;
+		}
+	}
+
+	/**
+	 * Registers sub-modules in the current module.
+	 *
+	 * Each sub-module should be specified as a name-value pair, where
+	 * name refers to the ID of the module and value the module or a configuration
+	 * array that can be used to create the module. In the latter case, [[Yii::createObject()]]
+	 * will be used to create the module.
+	 *
+	 * If a new sub-module has the same ID as an existing one, the existing one will be overwritten silently.
+	 *
+	 * The following is an example for registering two sub-modules:
+	 *
+	 * ~~~
+	 * array(
+	 *     'comment' => array(
+	 *         'class' => 'app\modules\comment\CommentModule',
+	 *         'db' => 'db',
+	 *     ),
+	 *     'booking' => array(
+	 *         'class' => 'app\modules\booking\BookingModule',
+	 *     ),
+	 * )
+	 * ~~~
+	 *
+	 * @param array $modules modules (id => module configuration or instances)
+	 */
+	public function setModules($modules)
+	{
+		foreach ($modules as $id => $module) {
+			$this->_modules[$id] = $module;
+		}
+	}
+
+	/**
+	 * Checks whether the named component exists.
+	 * @param string $id component ID
+	 * @return boolean whether the named component exists. Both loaded and unloaded components
+	 * are considered.
+	 */
+	public function hasComponent($id)
+	{
+		return isset($this->_components[$id]);
+	}
+
+	/**
+	 * Retrieves the named component.
+	 * @param string $id component ID (case-sensitive)
+	 * @param boolean $load whether to load the component if it is not yet loaded.
+	 * @return Component|null the component instance, null if the component does not exist.
+	 * @see hasComponent()
+	 */
+	public function getComponent($id, $load = true)
+	{
+		if (isset($this->_components[$id])) {
+			if ($this->_components[$id] instanceof Object) {
+				return $this->_components[$id];
+			} elseif ($load) {
+				Yii::trace("Loading component: $id", __METHOD__);
+				return $this->_components[$id] = Yii::createObject($this->_components[$id]);
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Registers a component with this module.
+	 * @param string $id component ID
+	 * @param Component|array|null $component the component to be registered with the module. This can
+	 * be one of the followings:
+	 *
+	 * - a [[Component]] object
+	 * - a configuration array: when [[getComponent()]] is called initially for this component, the array
+	 *   will be used to instantiate the component via [[Yii::createObject()]].
+	 * - null: the named component will be removed from the module
+	 */
+	public function setComponent($id, $component)
+	{
+		if ($component === null) {
+			unset($this->_components[$id]);
+		} else {
+			$this->_components[$id] = $component;
+		}
+	}
+
+	/**
+	 * Returns the registered components.
+	 * @param boolean $loadedOnly whether to return the loaded components only. If this is set false,
+	 * then all components specified in the configuration will be returned, whether they are loaded or not.
+	 * Loaded components will be returned as objects, while unloaded components as configuration arrays.
+	 * @return array the components (indexed by their IDs)
+	 */
+	public function getComponents($loadedOnly = false)
+	{
+		if ($loadedOnly) {
+			$components = array();
+			foreach ($this->_components as $component) {
+				if ($component instanceof Component) {
+					$components[] = $component;
+				}
+			}
+			return $components;
+		} else {
+			return $this->_components;
+		}
+	}
+
+	/**
+	 * Registers a set of components in this module.
+	 *
+	 * Each component should be specified as a name-value pair, where
+	 * name refers to the ID of the component and value the component or a configuration
+	 * array that can be used to create the component. In the latter case, [[Yii::createObject()]]
+	 * will be used to create the component.
+	 *
+	 * If a new component has the same ID as an existing one, the existing one will be overwritten silently.
+	 *
+	 * The following is an example for setting two components:
+	 *
+	 * ~~~
+	 * array(
+	 *     'db' => array(
+	 *         'class' => 'yii\db\Connection',
+	 *         'dsn' => 'sqlite:path/to/file.db',
+	 *     ),
+	 *     'cache' => array(
+	 *         'class' => 'yii\caching\DbCache',
+	 *         'db' => 'db',
+	 *     ),
+	 * )
+	 * ~~~
+	 *
+	 * @param array $components components (id => component configuration or instance)
+	 */
+	public function setComponents($components)
+	{
+		foreach ($components as $id => $component) {
+			if (isset($this->_components[$id]['class']) && !isset($component['class'])) {
+				$component['class'] = $this->_components[$id]['class'];
+			}
+			$this->_components[$id] = $component;
+		}
+	}
+
+	/**
+	 * Loads components that are declared in [[preload]].
+	 */
+	public function preloadComponents()
+	{
+		foreach ($this->preload as $id) {
+			$this->getComponent($id);
+		}
+	}
+
+	/**
+	 * Runs a controller action specified by a route.
+	 * This method parses the specified route and creates the corresponding child module(s), controller and action
+	 * instances. It then calls [[Controller::runAction()]] to run the action with the given parameters.
+	 * If the route is empty, the method will use [[defaultRoute]].
+	 * @param string $route the route that specifies the action.
+	 * @param array $params the parameters to be passed to the action
+	 * @return integer the status code returned by the action execution. 0 means normal, and other values mean abnormal.
+	 * @throws InvalidRouteException if the requested route cannot be resolved into an action successfully
+	 */
+	public function runAction($route, $params = array())
+	{
+		$result = $this->createController($route);
+		if (is_array($result)) {
+			/** @var $controller Controller */
+			list($controller, $actionID) = $result;
+			$oldController = Yii::$app->controller;
+			Yii::$app->controller = $controller;
+			$status = $controller->runAction($actionID, $params);
+			Yii::$app->controller = $oldController;
+			return $status;
+		} else {
+			throw new InvalidRouteException('Unable to resolve the request "' . trim($this->getUniqueId() . '/' . $route, '/') . '".');
+		}
+	}
+
+	/**
+	 * Creates a controller instance based on the controller ID.
+	 *
+	 * The controller is created within this module. The method first attempts to
+	 * create the controller based on the [[controllerMap]] of the module. If not available,
+	 * it will look for the controller class under the [[controllerPath]] and create an
+	 * instance of it.
+	 *
+	 * @param string $route the route consisting of module, controller and action IDs.
+	 * @return array|boolean If the controller is created successfully, it will be returned together
+	 * with the requested action ID. Otherwise false will be returned.
+	 * @throws InvalidConfigException if the controller class and its file do not match.
+	 */
+	public function createController($route)
+	{
+		if ($route === '') {
+			$route = $this->defaultRoute;
+		}
+		$route = trim($route, '/');
+		if (($pos = strpos($route, '/')) !== false) {
+			$id = substr($route, 0, $pos);
+			$route = substr($route, $pos + 1);
+		} else {
+			$id = $route;
+			$route = '';
+		}
+
+		$module = $this->getModule($id);
+		if ($module !== null) {
+			return $module->createController($route);
+		}
+
+		if (isset($this->controllerMap[$id])) {
+			$controller = Yii::createObject($this->controllerMap[$id], $id, $this);
+		} elseif (preg_match('/^[a-z0-9\\-_]+$/', $id)) {
+			$className = str_replace(' ', '', ucwords(implode(' ', explode('-', $id)))) . 'Controller';
+			$classFile = $this->controllerPath . DIRECTORY_SEPARATOR . $className . '.php';
+			if (!is_file($classFile)) {
+				return false;
+			}
+			$className = ltrim($this->controllerNamespace . '\\' . $className, '\\');
+			Yii::$classMap[$className] = $classFile;
+			if (is_subclass_of($className, 'yii\base\Controller')) {
+				$controller = new $className($id, $this);
+			} elseif (YII_DEBUG) {
+				throw new InvalidConfigException("Controller class must extend from \\yii\\base\\Controller.");
+			}
+		}
+
+		return isset($controller) ? array($controller, $route) : false;
+	}
+
+	/**
+	 * This method is invoked right before an action is to be executed (after all possible filters.)
+	 * You may override this method to do last-minute preparation for the action.
+	 * @param Action $action the action to be executed.
+	 * @return boolean whether the action should continue to be executed.
+	 */
+	public function beforeAction($action)
+	{
+		$event = new ActionEvent($action);
+		$this->trigger(self::EVENT_BEFORE_ACTION, $event);
+		return $event->isValid;
+	}
+
+	/**
+	 * This method is invoked right after an action is executed.
+	 * You may override this method to do some postprocessing for the action.
+	 * @param Action $action the action just executed.
+	 */
+	public function afterAction($action)
+	{
+		$this->trigger(self::EVENT_AFTER_ACTION, new ActionEvent($action));
+	}
+}
diff --git a/framework/yii/base/NotSupportedException.php b/framework/yii/base/NotSupportedException.php
index 8a93e14..33f936f 100644
--- a/framework/yii/base/NotSupportedException.php
+++ b/framework/yii/base/NotSupportedException.php
@@ -23,4 +23,3 @@ class NotSupportedException extends Exception
 		return \Yii::t('yii', 'Not Supported');
 	}
 }
-
diff --git a/framework/yii/base/Theme.php b/framework/yii/base/Theme.php
index ca1efcd..91c32dc 100644
--- a/framework/yii/base/Theme.php
+++ b/framework/yii/base/Theme.php
@@ -73,7 +73,7 @@ class Theme extends Component
 	 */
 	public function init()
 	{
-	 	parent::init();
+		parent::init();
 		if (empty($this->pathMap)) {
 			if ($this->basePath !== null) {
 				$this->basePath = Yii::getAlias($this->basePath);
diff --git a/framework/yii/base/UnknownClassException.php b/framework/yii/base/UnknownClassException.php
index e4a682a..7b893d4 100644
--- a/framework/yii/base/UnknownClassException.php
+++ b/framework/yii/base/UnknownClassException.php
@@ -23,4 +23,3 @@ class UnknownClassException extends Exception
 		return \Yii::t('yii', 'Unknown Class');
 	}
 }
-
diff --git a/framework/yii/base/UnknownMethodException.php b/framework/yii/base/UnknownMethodException.php
index d8cea34..3b33659 100644
--- a/framework/yii/base/UnknownMethodException.php
+++ b/framework/yii/base/UnknownMethodException.php
@@ -23,4 +23,3 @@ class UnknownMethodException extends Exception
 		return \Yii::t('yii', 'Unknown Method');
 	}
 }
-
diff --git a/framework/yii/base/UnknownPropertyException.php b/framework/yii/base/UnknownPropertyException.php
index b8e93c5..682fdfa 100644
--- a/framework/yii/base/UnknownPropertyException.php
+++ b/framework/yii/base/UnknownPropertyException.php
@@ -23,4 +23,3 @@ class UnknownPropertyException extends Exception
 		return \Yii::t('yii', 'Unknown Property');
 	}
 }
-
diff --git a/framework/yii/bootstrap/Button.php b/framework/yii/bootstrap/Button.php
index 104e700..856c420 100644
--- a/framework/yii/bootstrap/Button.php
+++ b/framework/yii/bootstrap/Button.php
@@ -6,9 +6,8 @@
  */
 
 namespace yii\bootstrap;
-use yii\base\InvalidConfigException;
-use yii\helpers\Html;
 
+use yii\helpers\Html;
 
 /**
  * Button renders a bootstrap button.
diff --git a/framework/yii/bootstrap/ButtonDropdown.php b/framework/yii/bootstrap/ButtonDropdown.php
index 4168bd5..fec042e 100644
--- a/framework/yii/bootstrap/ButtonDropdown.php
+++ b/framework/yii/bootstrap/ButtonDropdown.php
@@ -6,8 +6,8 @@
  */
 
 namespace yii\bootstrap;
-use yii\helpers\Html;
 
+use yii\helpers\Html;
 
 /**
  * ButtonDropdown renders a group or split button dropdown bootstrap component.
diff --git a/framework/yii/bootstrap/ButtonGroup.php b/framework/yii/bootstrap/ButtonGroup.php
index f50d6a8..e5bf4e9 100644
--- a/framework/yii/bootstrap/ButtonGroup.php
+++ b/framework/yii/bootstrap/ButtonGroup.php
@@ -10,7 +10,6 @@ namespace yii\bootstrap;
 use yii\helpers\base\ArrayHelper;
 use yii\helpers\Html;
 
-
 /**
  * ButtonGroup renders a button group bootstrap component.
  *
diff --git a/framework/yii/bootstrap/Collapse.php b/framework/yii/bootstrap/Collapse.php
index a7929e3..fdcaae1 100644
--- a/framework/yii/bootstrap/Collapse.php
+++ b/framework/yii/bootstrap/Collapse.php
@@ -130,4 +130,4 @@ class Collapse extends Widget
 
 		return implode("\n", $group);
 	}
-}
\ No newline at end of file
+}
diff --git a/framework/yii/bootstrap/Dropdown.php b/framework/yii/bootstrap/Dropdown.php
index 2bee0ff..827e6cc 100644
--- a/framework/yii/bootstrap/Dropdown.php
+++ b/framework/yii/bootstrap/Dropdown.php
@@ -11,7 +11,6 @@ use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
 use yii\helpers\Html;
 
-
 /**
  * Dropdown renders a Bootstrap dropdown menu component.
  *
diff --git a/framework/yii/bootstrap/Nav.php b/framework/yii/bootstrap/Nav.php
index 6c091a4..8e35010 100644
--- a/framework/yii/bootstrap/Nav.php
+++ b/framework/yii/bootstrap/Nav.php
@@ -118,7 +118,7 @@ class Nav extends Widget
 		$url = Html::url(ArrayHelper::getValue($item, 'url', '#'));
 		$linkOptions = ArrayHelper::getValue($item, 'linkOptions', array());
 
-		if(ArrayHelper::getValue($item, 'active')) {
+		if (ArrayHelper::getValue($item, 'active')) {
 			$this->addCssClass($options, 'active');
 		}
 
diff --git a/framework/yii/bootstrap/Progress.php b/framework/yii/bootstrap/Progress.php
index 708c0fe..7c0473e 100644
--- a/framework/yii/bootstrap/Progress.php
+++ b/framework/yii/bootstrap/Progress.php
@@ -11,7 +11,6 @@ use yii\base\InvalidConfigException;
 use yii\helpers\ArrayHelper;
 use yii\helpers\Html;
 
-
 /**
  * Progress renders a bootstrap progress bar component.
  *
diff --git a/framework/yii/bootstrap/Widget.php b/framework/yii/bootstrap/Widget.php
index a2e6d77..48b0331 100644
--- a/framework/yii/bootstrap/Widget.php
+++ b/framework/yii/bootstrap/Widget.php
@@ -11,7 +11,6 @@ use Yii;
 use yii\base\View;
 use yii\helpers\Json;
 
-
 /**
  * \yii\bootstrap\Widget is the base class for all bootstrap widgets.
  *
diff --git a/framework/yii/caching/DbCache.php b/framework/yii/caching/DbCache.php
index 7e5f12d..7571a42 100644
--- a/framework/yii/caching/DbCache.php
+++ b/framework/yii/caching/DbCache.php
@@ -170,7 +170,7 @@ class DbCache extends Cache
 		} else {
 			return $this->addValue($key, $value, $expire);
 		}
- 	}
+	}
 
 	/**
 	 * Stores a value identified by a key into cache if the cache does not contain this key.
diff --git a/framework/yii/caching/XCache.php b/framework/yii/caching/XCache.php
index 91f483b..1f12f23 100644
--- a/framework/yii/caching/XCache.php
+++ b/framework/yii/caching/XCache.php
@@ -86,4 +86,3 @@ class XCache extends Cache
 		return true;
 	}
 }
-
diff --git a/framework/yii/console/Exception.php b/framework/yii/console/Exception.php
index 9e9003e..f272bde 100644
--- a/framework/yii/console/Exception.php
+++ b/framework/yii/console/Exception.php
@@ -25,4 +25,3 @@ class Exception extends UserException
 		return \Yii::t('yii', 'Error');
 	}
 }
-
diff --git a/framework/yii/console/controllers/AssetController.php b/framework/yii/console/controllers/AssetController.php
index cd8710e..dcd1667 100644
--- a/framework/yii/console/controllers/AssetController.php
+++ b/framework/yii/console/controllers/AssetController.php
@@ -220,7 +220,8 @@ class AssetController extends Controller
 	 * @param array $result already loaded bundles list.
 	 * @throws \yii\console\Exception on failure.
 	 */
-	protected function loadBundleDependency($name, $bundle, &$result) {
+	protected function loadBundleDependency($name, $bundle, &$result)
+	{
 		if (!empty($bundle->depends)) {
 			$assetManager = $this->getAssetManager();
 			foreach ($bundle->depends as $dependencyName) {
@@ -572,7 +573,7 @@ EOD;
 		$inputFileRelativePathParts = explode('/', $inputFileRelativePath);
 		$outputFileRelativePathParts = explode('/', $outputFileRelativePath);
 
-		$callback = function($matches) use ($inputFileRelativePathParts, $outputFileRelativePathParts) {
+		$callback = function ($matches) use ($inputFileRelativePathParts, $outputFileRelativePathParts) {
 			$fullMatch = $matches[0];
 			$inputUrl = $matches[1];
 
diff --git a/framework/yii/console/controllers/MessageController.php b/framework/yii/console/controllers/MessageController.php
index 715fb5c..44cf1b1 100644
--- a/framework/yii/console/controllers/MessageController.php
+++ b/framework/yii/console/controllers/MessageController.php
@@ -179,8 +179,7 @@ class MessageController extends Controller
 			}
 			ksort($translated);
 			foreach ($translated as $message => $translation) {
-				if (!isset($merged[$message]) && !isset($todo[$message]) && !$removeOld)
-				{
+				if (!isset($merged[$message]) && !isset($todo[$message]) && !$removeOld) {
 					if (substr($translation, 0, 2) === '@@' && substr($translation, -2) === '@@') {
 						$todo[$message]=$translation;
 					} else {
diff --git a/framework/yii/console/controllers/MigrateController.php b/framework/yii/console/controllers/MigrateController.php
index d3eb257..eca7787 100644
--- a/framework/yii/console/controllers/MigrateController.php
+++ b/framework/yii/console/controllers/MigrateController.php
@@ -1,635 +1,635 @@
-<?php
-/**
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @link http://www.yiiframework.com/
- * @copyright Copyright (c) 2008 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-namespace yii\console\controllers;
-
-use Yii;
-use yii\console\Exception;
-use yii\console\Controller;
-use yii\db\Connection;
-use yii\db\Query;
-use yii\helpers\ArrayHelper;
-
-/**
- * This command manages application migrations.
- *
- * A migration means a set of persistent changes to the application environment
- * that is shared among different developers. For example, in an application
- * backed by a database, a migration may refer to a set of changes to
- * the database, such as creating a new table, adding a new table column.
- *
- * This command provides support for tracking the migration history, upgrading
- * or downloading with migrations, and creating new migration skeletons.
- *
- * The migration history is stored in a database table named
- * as [[migrationTable]]. The table will be automatically created the first time
- * this command is executed, if it does not exist. You may also manually
- * create it as follows:
- *
- * ~~~
- * CREATE TABLE tbl_migration (
- *     version varchar(255) PRIMARY KEY,
- *     apply_time integer
- * )
- * ~~~
- *
- * Below are some common usages of this command:
- *
- * ~~~
- * # creates a new migration named 'create_user_table'
- * yii migrate/create create_user_table
- *
- * # applies ALL new migrations
- * yii migrate
- *
- * # reverts the last applied migration
- * yii migrate/down
- * ~~~
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @since 2.0
- */
-class MigrateController extends Controller
-{
-	/**
-	 * The name of the dummy migration that marks the beginning of the whole migration history.
-	 */
-	const BASE_MIGRATION = 'm000000_000000_base';
-
-	/**
-	 * @var string the default command action.
-	 */
-	public $defaultAction = 'up';
-	/**
-	 * @var string the directory storing the migration classes. This can be either
-	 * a path alias or a directory.
-	 */
-	public $migrationPath = '@app/migrations';
-	/**
-	 * @var string the name of the table for keeping applied migration information.
-	 */
-	public $migrationTable = 'tbl_migration';
-	/**
-	 * @var string the template file for generating new migrations.
-	 * This can be either a path alias (e.g. "@app/migrations/template.php")
-	 * or a file path.
-	 */
-	public $templateFile = '@yii/views/migration.php';
-	/**
-	 * @var boolean whether to execute the migration in an interactive mode.
-	 */
-	public $interactive = true;
-	/**
-	 * @var Connection|string the DB connection object or the application
-	 * component ID of the DB connection.
-	 */
-	public $db = 'db';
-
-	/**
-	 * Returns the names of the global options for this command.
-	 * @return array the names of the global options for this command.
-	 */
-	public function globalOptions()
-	{
-		return array('migrationPath', 'migrationTable', 'db', 'templateFile', 'interactive');
-	}
-
-	/**
-	 * This method is invoked right before an action is to be executed (after all possible filters.)
-	 * It checks the existence of the [[migrationPath]].
-	 * @param \yii\base\Action $action the action to be executed.
-	 * @return boolean whether the action should continue to be executed.
-	 * @throws Exception if the migration directory does not exist.
-	 */
-	public function beforeAction($action)
-	{
-		if (parent::beforeAction($action)) {
-			$path = Yii::getAlias($this->migrationPath);
-			if (!is_dir($path)) {
-				throw new Exception("The migration directory \"{$this->migrationPath}\" does not exist.");
-			}
-			$this->migrationPath = $path;
-
-			if($action->id!=='create') {
-				if (is_string($this->db)) {
-					$this->db = Yii::$app->getComponent($this->db);
-				}
-				if (!$this->db instanceof Connection) {
-					throw new Exception("The 'db' option must refer to the application component ID of a DB connection.");
-				}
-			}
-
-			$version = Yii::getVersion();
-			echo "Yii Migration Tool (based on Yii v{$version})\n\n";
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * Upgrades the application by applying new migrations.
-	 * For example,
-	 *
-	 * ~~~
-	 * yii migrate     # apply all new migrations
-	 * yii migrate 3   # apply the first 3 new migrations
-	 * ~~~
-	 *
-	 * @param integer $limit the number of new migrations to be applied. If 0, it means
-	 * applying all available new migrations.
-	 */
-	public function actionUp($limit = 0)
-	{
-		$migrations = $this->getNewMigrations();
-		if (empty($migrations)) {
-			echo "No new migration found. Your system is up-to-date.\n";
-			Yii::$app->end();
-		}
-
-		$total = count($migrations);
-		$limit = (int)$limit;
-		if ($limit > 0) {
-			$migrations = array_slice($migrations, 0, $limit);
-		}
-
-		$n = count($migrations);
-		if ($n === $total) {
-			echo "Total $n new " . ($n === 1 ? 'migration' : 'migrations') . " to be applied:\n";
-		} else {
-			echo "Total $n out of $total new " . ($total === 1 ? 'migration' : 'migrations') . " to be applied:\n";
-		}
-
-		foreach ($migrations as $migration) {
-			echo "    $migration\n";
-		}
-		echo "\n";
-
-		if ($this->confirm('Apply the above ' . ($n === 1 ? 'migration' : 'migrations') . "?")) {
-			foreach ($migrations as $migration) {
-				if (!$this->migrateUp($migration)) {
-					echo "\nMigration failed. The rest of the migrations are canceled.\n";
-					return;
-				}
-			}
-			echo "\nMigrated up successfully.\n";
-		}
-	}
-
-	/**
-	 * Downgrades the application by reverting old migrations.
-	 * For example,
-	 *
-	 * ~~~
-	 * yii migrate/down     # revert the last migration
-	 * yii migrate/down 3   # revert the last 3 migrations
-	 * ~~~
-	 *
-	 * @param integer $limit the number of migrations to be reverted. Defaults to 1,
-	 * meaning the last applied migration will be reverted.
-	 * @throws Exception if the number of the steps specified is less than 1.
-	 */
-	public function actionDown($limit = 1)
-	{
-		$limit = (int)$limit;
-		if ($limit < 1) {
-			throw new Exception("The step argument must be greater than 0.");
-		}
-
-		$migrations = $this->getMigrationHistory($limit);
-		if (empty($migrations)) {
-			echo "No migration has been done before.\n";
-			return;
-		}
-		$migrations = array_keys($migrations);
-
-		$n = count($migrations);
-		echo "Total $n " . ($n === 1 ? 'migration' : 'migrations') . " to be reverted:\n";
-		foreach ($migrations as $migration) {
-			echo "    $migration\n";
-		}
-		echo "\n";
-
-		if ($this->confirm('Revert the above ' . ($n === 1 ? 'migration' : 'migrations') . "?")) {
-			foreach ($migrations as $migration) {
-				if (!$this->migrateDown($migration)) {
-					echo "\nMigration failed. The rest of the migrations are canceled.\n";
-					return;
-				}
-			}
-			echo "\nMigrated down successfully.\n";
-		}
-	}
-
-	/**
-	 * Redoes the last few migrations.
-	 *
-	 * This command will first revert the specified migrations, and then apply
-	 * them again. For example,
-	 *
-	 * ~~~
-	 * yii migrate/redo     # redo the last applied migration
-	 * yii migrate/redo 3   # redo the last 3 applied migrations
-	 * ~~~
-	 *
-	 * @param integer $limit the number of migrations to be redone. Defaults to 1,
-	 * meaning the last applied migration will be redone.
-	 * @throws Exception if the number of the steps specified is less than 1.
-	 */
-	public function actionRedo($limit = 1)
-	{
-		$limit = (int)$limit;
-		if ($limit < 1) {
-			throw new Exception("The step argument must be greater than 0.");
-		}
-
-		$migrations = $this->getMigrationHistory($limit);
-		if (empty($migrations)) {
-			echo "No migration has been done before.\n";
-			return;
-		}
-		$migrations = array_keys($migrations);
-
-		$n = count($migrations);
-		echo "Total $n " . ($n === 1 ? 'migration' : 'migrations') . " to be redone:\n";
-		foreach ($migrations as $migration) {
-			echo "    $migration\n";
-		}
-		echo "\n";
-
-		if ($this->confirm('Redo the above ' . ($n === 1 ? 'migration' : 'migrations') . "?")) {
-			foreach ($migrations as $migration) {
-				if (!$this->migrateDown($migration)) {
-					echo "\nMigration failed. The rest of the migrations are canceled.\n";
-					return;
-				}
-			}
-			foreach (array_reverse($migrations) as $migration) {
-				if (!$this->migrateUp($migration)) {
-					echo "\nMigration failed. The rest of the migrations migrations are canceled.\n";
-					return;
-				}
-			}
-			echo "\nMigration redone successfully.\n";
-		}
-	}
-
-	/**
-	 * Upgrades or downgrades till the specified version.
-	 *
-	 * This command will first revert the specified migrations, and then apply
-	 * them again. For example,
-	 *
-	 * ~~~
-	 * yii migrate/to 101129_185401                      # using timestamp
-	 * yii migrate/to m101129_185401_create_user_table   # using full name
-	 * ~~~
-	 *
-	 * @param string $version the version name that the application should be migrated to.
-	 * This can be either the timestamp or the full name of the migration.
-	 * @throws Exception if the version argument is invalid
-	 */
-	public function actionTo($version)
-	{
-		$originalVersion = $version;
-		if (preg_match('/^m?(\d{6}_\d{6})(_.*?)?$/', $version, $matches)) {
-			$version = 'm' . $matches[1];
-		} else {
-			throw new Exception("The version argument must be either a timestamp (e.g. 101129_185401)\nor the full name of a migration (e.g. m101129_185401_create_user_table).");
-		}
-
-		// try migrate up
-		$migrations = $this->getNewMigrations();
-		foreach ($migrations as $i => $migration) {
-			if (strpos($migration, $version . '_') === 0) {
-				$this->actionUp($i + 1);
-				return;
-			}
-		}
-
-		// try migrate down
-		$migrations = array_keys($this->getMigrationHistory(-1));
-		foreach ($migrations as $i => $migration) {
-			if (strpos($migration, $version . '_') === 0) {
-				if ($i === 0) {
-					echo "Already at '$originalVersion'. Nothing needs to be done.\n";
-				} else {
-					$this->actionDown($i);
-				}
-				return;
-			}
-		}
-
-		throw new Exception("Unable to find the version '$originalVersion'.");
-	}
-
-	/**
-	 * Modifies the migration history to the specified version.
-	 *
-	 * No actual migration will be performed.
-	 *
-	 * ~~~
-	 * yii migrate/mark 101129_185401                      # using timestamp
-	 * yii migrate/mark m101129_185401_create_user_table   # using full name
-	 * ~~~
-	 *
-	 * @param string $version the version at which the migration history should be marked.
-	 * This can be either the timestamp or the full name of the migration.
-	 * @throws Exception if the version argument is invalid or the version cannot be found.
-	 */
-	public function actionMark($version)
-	{
-		$originalVersion = $version;
-		if (preg_match('/^m?(\d{6}_\d{6})(_.*?)?$/', $version, $matches)) {
-			$version = 'm' . $matches[1];
-		} else {
-			throw new Exception("The version argument must be either a timestamp (e.g. 101129_185401)\nor the full name of a migration (e.g. m101129_185401_create_user_table).");
-		}
-
-		// try mark up
-		$migrations = $this->getNewMigrations();
-		foreach ($migrations as $i => $migration) {
-			if (strpos($migration, $version . '_') === 0) {
-				if ($this->confirm("Set migration history at $originalVersion?")) {
-					$command = $this->db->createCommand();
-					for ($j = 0; $j <= $i; ++$j) {
-						$command->insert($this->migrationTable, array(
-							'version' => $migrations[$j],
-							'apply_time' => time(),
-						))->execute();
-					}
-					echo "The migration history is set at $originalVersion.\nNo actual migration was performed.\n";
-				}
-				return;
-			}
-		}
-
-		// try mark down
-		$migrations = array_keys($this->getMigrationHistory(-1));
-		foreach ($migrations as $i => $migration) {
-			if (strpos($migration, $version . '_') === 0) {
-				if ($i === 0) {
-					echo "Already at '$originalVersion'. Nothing needs to be done.\n";
-				} else {
-					if ($this->confirm("Set migration history at $originalVersion?")) {
-						$command = $this->db->createCommand();
-						for ($j = 0; $j < $i; ++$j) {
-							$command->delete($this->migrationTable, array(
-								'version' => $migrations[$j],
-							))->execute();
-						}
-						echo "The migration history is set at $originalVersion.\nNo actual migration was performed.\n";
-					}
-				}
-				return;
-			}
-		}
-
-		throw new Exception("Unable to find the version '$originalVersion'.");
-	}
-
-	/**
-	 * Displays the migration history.
-	 *
-	 * This command will show the list of migrations that have been applied
-	 * so far. For example,
-	 *
-	 * ~~~
-	 * yii migrate/history     # showing the last 10 migrations
-	 * yii migrate/history 5   # showing the last 5 migrations
-	 * yii migrate/history 0   # showing the whole history
-	 * ~~~
-	 *
-	 * @param integer $limit the maximum number of migrations to be displayed.
-	 * If it is 0, the whole migration history will be displayed.
-	 */
-	public function actionHistory($limit = 10)
-	{
-		$limit = (int)$limit;
-		$migrations = $this->getMigrationHistory($limit);
-		if (empty($migrations)) {
-			echo "No migration has been done before.\n";
-		} else {
-			$n = count($migrations);
-			if ($limit > 0) {
-				echo "Showing the last $n applied " . ($n === 1 ? 'migration' : 'migrations') . ":\n";
-			} else {
-				echo "Total $n " . ($n === 1 ? 'migration has' : 'migrations have') . " been applied before:\n";
-			}
-			foreach ($migrations as $version => $time) {
-				echo "    (" . date('Y-m-d H:i:s', $time) . ') ' . $version . "\n";
-			}
-		}
-	}
-
-	/**
-	 * Displays the un-applied new migrations.
-	 *
-	 * This command will show the new migrations that have not been applied.
-	 * For example,
-	 *
-	 * ~~~
-	 * yii migrate/new     # showing the first 10 new migrations
-	 * yii migrate/new 5   # showing the first 5 new migrations
-	 * yii migrate/new 0   # showing all new migrations
-	 * ~~~
-	 *
-	 * @param integer $limit the maximum number of new migrations to be displayed.
-	 * If it is 0, all available new migrations will be displayed.
-	 */
-	public function actionNew($limit = 10)
-	{
-		$limit = (int)$limit;
-		$migrations = $this->getNewMigrations();
-		if (empty($migrations)) {
-			echo "No new migrations found. Your system is up-to-date.\n";
-		} else {
-			$n = count($migrations);
-			if ($limit > 0 && $n > $limit) {
-				$migrations = array_slice($migrations, 0, $limit);
-				echo "Showing $limit out of $n new " . ($n === 1 ? 'migration' : 'migrations') . ":\n";
-			} else {
-				echo "Found $n new " . ($n === 1 ? 'migration' : 'migrations') . ":\n";
-			}
-
-			foreach ($migrations as $migration) {
-				echo "    " . $migration . "\n";
-			}
-		}
-	}
-
-	/**
-	 * Creates a new migration.
-	 *
-	 * This command creates a new migration using the available migration template.
-	 * After using this command, developers should modify the created migration
-	 * skeleton by filling up the actual migration logic.
-	 *
-	 * ~~~
-	 * yii migrate/create create_user_table
-	 * ~~~
-	 *
-	 * @param string $name the name of the new migration. This should only contain
-	 * letters, digits and/or underscores.
-	 * @throws Exception if the name argument is invalid.
-	 */
-	public function actionCreate($name)
-	{
-		if (!preg_match('/^\w+$/', $name)) {
-			throw new Exception("The migration name should contain letters, digits and/or underscore characters only.");
-		}
-
-		$name = 'm' . gmdate('ymd_His') . '_' . $name;
-		$file = $this->migrationPath . DIRECTORY_SEPARATOR . $name . '.php';
-
-		if ($this->confirm("Create new migration '$file'?")) {
-			$content = $this->renderFile(Yii::getAlias($this->templateFile), array(
-				'className' => $name,
-			));
-			file_put_contents($file, $content);
-			echo "New migration created successfully.\n";
-		}
-	}
-
-	/**
-	 * Upgrades with the specified migration class.
-	 * @param string $class the migration class name
-	 * @return boolean whether the migration is successful
-	 */
-	protected function migrateUp($class)
-	{
-		if ($class === self::BASE_MIGRATION) {
-			return true;
-		}
-
-		echo "*** applying $class\n";
-		$start = microtime(true);
-		$migration = $this->createMigration($class);
-		if ($migration->up() !== false) {
-			$this->db->createCommand()->insert($this->migrationTable, array(
-				'version' => $class,
-				'apply_time' => time(),
-			))->execute();
-			$time = microtime(true) - $start;
-			echo "*** applied $class (time: " . sprintf("%.3f", $time) . "s)\n\n";
-			return true;
-		} else {
-			$time = microtime(true) - $start;
-			echo "*** failed to apply $class (time: " . sprintf("%.3f", $time) . "s)\n\n";
-			return false;
-		}
-	}
-
-	/**
-	 * Downgrades with the specified migration class.
-	 * @param string $class the migration class name
-	 * @return boolean whether the migration is successful
-	 */
-	protected function migrateDown($class)
-	{
-		if ($class === self::BASE_MIGRATION) {
-			return true;
-		}
-
-		echo "*** reverting $class\n";
-		$start = microtime(true);
-		$migration = $this->createMigration($class);
-		if ($migration->down() !== false) {
-			$this->db->createCommand()->delete($this->migrationTable, array(
-				'version' => $class,
-			))->execute();
-			$time = microtime(true) - $start;
-			echo "*** reverted $class (time: " . sprintf("%.3f", $time) . "s)\n\n";
-			return true;
-		} else {
-			$time = microtime(true) - $start;
-			echo "*** failed to revert $class (time: " . sprintf("%.3f", $time) . "s)\n\n";
-			return false;
-		}
-	}
-
-	/**
-	 * Creates a new migration instance.
-	 * @param string $class the migration class name
-	 * @return \yii\db\Migration the migration instance
-	 */
-	protected function createMigration($class)
-	{
-		$file = $this->migrationPath . DIRECTORY_SEPARATOR . $class . '.php';
-		require_once($file);
-		return new $class(array(
-			'db' => $this->db,
-		));
-	}
-
-	/**
-	 * Returns the migration history.
-	 * @param integer $limit the maximum number of records in the history to be returned
-	 * @return array the migration history
-	 */
-	protected function getMigrationHistory($limit)
-	{
-		if ($this->db->schema->getTableSchema($this->migrationTable, true) === null) {
-			$this->createMigrationHistoryTable();
-		}
-		$query = new Query;
-		$rows = $query->select(array('version', 'apply_time'))
-			->from($this->migrationTable)
-			->orderBy('version DESC')
-			->limit($limit)
-			->createCommand()
-			->queryAll();
-		$history = ArrayHelper::map($rows, 'version', 'apply_time');
-		unset($history[self::BASE_MIGRATION]);
-		return $history;
-	}
-
-	/**
-	 * Creates the migration history table.
-	 */
-	protected function createMigrationHistoryTable()
-	{
-		echo 'Creating migration history table "' . $this->migrationTable . '"...';
-		$this->db->createCommand()->createTable($this->migrationTable, array(
-			'version' => 'varchar(255) NOT NULL PRIMARY KEY',
-			'apply_time' => 'integer',
-		))->execute();
-		$this->db->createCommand()->insert($this->migrationTable, array(
-			'version' => self::BASE_MIGRATION,
-			'apply_time' => time(),
-		))->execute();
-		echo "done.\n";
-	}
-
-	/**
-	 * Returns the migrations that are not applied.
-	 * @return array list of new migrations
-	 */
-	protected function getNewMigrations()
-	{
-		$applied = array();
-		foreach ($this->getMigrationHistory(-1) as $version => $time) {
-			$applied[substr($version, 1, 13)] = true;
-		}
-
-		$migrations = array();
-		$handle = opendir($this->migrationPath);
-		while (($file = readdir($handle)) !== false) {
-			if ($file === '.' || $file === '..') {
-				continue;
-			}
-			$path = $this->migrationPath . DIRECTORY_SEPARATOR . $file;
-			if (preg_match('/^(m(\d{6}_\d{6})_.*?)\.php$/', $file, $matches) && is_file($path) && !isset($applied[$matches[2]])) {
-				$migrations[] = $matches[1];
-			}
-		}
-		closedir($handle);
-		sort($migrations);
-		return $migrations;
-	}
-}
+<?php
+/**
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\console\controllers;
+
+use Yii;
+use yii\console\Exception;
+use yii\console\Controller;
+use yii\db\Connection;
+use yii\db\Query;
+use yii\helpers\ArrayHelper;
+
+/**
+ * This command manages application migrations.
+ *
+ * A migration means a set of persistent changes to the application environment
+ * that is shared among different developers. For example, in an application
+ * backed by a database, a migration may refer to a set of changes to
+ * the database, such as creating a new table, adding a new table column.
+ *
+ * This command provides support for tracking the migration history, upgrading
+ * or downloading with migrations, and creating new migration skeletons.
+ *
+ * The migration history is stored in a database table named
+ * as [[migrationTable]]. The table will be automatically created the first time
+ * this command is executed, if it does not exist. You may also manually
+ * create it as follows:
+ *
+ * ~~~
+ * CREATE TABLE tbl_migration (
+ *     version varchar(255) PRIMARY KEY,
+ *     apply_time integer
+ * )
+ * ~~~
+ *
+ * Below are some common usages of this command:
+ *
+ * ~~~
+ * # creates a new migration named 'create_user_table'
+ * yii migrate/create create_user_table
+ *
+ * # applies ALL new migrations
+ * yii migrate
+ *
+ * # reverts the last applied migration
+ * yii migrate/down
+ * ~~~
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class MigrateController extends Controller
+{
+	/**
+	 * The name of the dummy migration that marks the beginning of the whole migration history.
+	 */
+	const BASE_MIGRATION = 'm000000_000000_base';
+
+	/**
+	 * @var string the default command action.
+	 */
+	public $defaultAction = 'up';
+	/**
+	 * @var string the directory storing the migration classes. This can be either
+	 * a path alias or a directory.
+	 */
+	public $migrationPath = '@app/migrations';
+	/**
+	 * @var string the name of the table for keeping applied migration information.
+	 */
+	public $migrationTable = 'tbl_migration';
+	/**
+	 * @var string the template file for generating new migrations.
+	 * This can be either a path alias (e.g. "@app/migrations/template.php")
+	 * or a file path.
+	 */
+	public $templateFile = '@yii/views/migration.php';
+	/**
+	 * @var boolean whether to execute the migration in an interactive mode.
+	 */
+	public $interactive = true;
+	/**
+	 * @var Connection|string the DB connection object or the application
+	 * component ID of the DB connection.
+	 */
+	public $db = 'db';
+
+	/**
+	 * Returns the names of the global options for this command.
+	 * @return array the names of the global options for this command.
+	 */
+	public function globalOptions()
+	{
+		return array('migrationPath', 'migrationTable', 'db', 'templateFile', 'interactive');
+	}
+
+	/**
+	 * This method is invoked right before an action is to be executed (after all possible filters.)
+	 * It checks the existence of the [[migrationPath]].
+	 * @param \yii\base\Action $action the action to be executed.
+	 * @return boolean whether the action should continue to be executed.
+	 * @throws Exception if the migration directory does not exist.
+	 */
+	public function beforeAction($action)
+	{
+		if (parent::beforeAction($action)) {
+			$path = Yii::getAlias($this->migrationPath);
+			if (!is_dir($path)) {
+				throw new Exception("The migration directory \"{$this->migrationPath}\" does not exist.");
+			}
+			$this->migrationPath = $path;
+
+			if ($action->id !== 'create') {
+				if (is_string($this->db)) {
+					$this->db = Yii::$app->getComponent($this->db);
+				}
+				if (!$this->db instanceof Connection) {
+					throw new Exception("The 'db' option must refer to the application component ID of a DB connection.");
+				}
+			}
+
+			$version = Yii::getVersion();
+			echo "Yii Migration Tool (based on Yii v{$version})\n\n";
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	/**
+	 * Upgrades the application by applying new migrations.
+	 * For example,
+	 *
+	 * ~~~
+	 * yii migrate     # apply all new migrations
+	 * yii migrate 3   # apply the first 3 new migrations
+	 * ~~~
+	 *
+	 * @param integer $limit the number of new migrations to be applied. If 0, it means
+	 * applying all available new migrations.
+	 */
+	public function actionUp($limit = 0)
+	{
+		$migrations = $this->getNewMigrations();
+		if (empty($migrations)) {
+			echo "No new migration found. Your system is up-to-date.\n";
+			Yii::$app->end();
+		}
+
+		$total = count($migrations);
+		$limit = (int)$limit;
+		if ($limit > 0) {
+			$migrations = array_slice($migrations, 0, $limit);
+		}
+
+		$n = count($migrations);
+		if ($n === $total) {
+			echo "Total $n new " . ($n === 1 ? 'migration' : 'migrations') . " to be applied:\n";
+		} else {
+			echo "Total $n out of $total new " . ($total === 1 ? 'migration' : 'migrations') . " to be applied:\n";
+		}
+
+		foreach ($migrations as $migration) {
+			echo "    $migration\n";
+		}
+		echo "\n";
+
+		if ($this->confirm('Apply the above ' . ($n === 1 ? 'migration' : 'migrations') . "?")) {
+			foreach ($migrations as $migration) {
+				if (!$this->migrateUp($migration)) {
+					echo "\nMigration failed. The rest of the migrations are canceled.\n";
+					return;
+				}
+			}
+			echo "\nMigrated up successfully.\n";
+		}
+	}
+
+	/**
+	 * Downgrades the application by reverting old migrations.
+	 * For example,
+	 *
+	 * ~~~
+	 * yii migrate/down     # revert the last migration
+	 * yii migrate/down 3   # revert the last 3 migrations
+	 * ~~~
+	 *
+	 * @param integer $limit the number of migrations to be reverted. Defaults to 1,
+	 * meaning the last applied migration will be reverted.
+	 * @throws Exception if the number of the steps specified is less than 1.
+	 */
+	public function actionDown($limit = 1)
+	{
+		$limit = (int)$limit;
+		if ($limit < 1) {
+			throw new Exception("The step argument must be greater than 0.");
+		}
+
+		$migrations = $this->getMigrationHistory($limit);
+		if (empty($migrations)) {
+			echo "No migration has been done before.\n";
+			return;
+		}
+		$migrations = array_keys($migrations);
+
+		$n = count($migrations);
+		echo "Total $n " . ($n === 1 ? 'migration' : 'migrations') . " to be reverted:\n";
+		foreach ($migrations as $migration) {
+			echo "    $migration\n";
+		}
+		echo "\n";
+
+		if ($this->confirm('Revert the above ' . ($n === 1 ? 'migration' : 'migrations') . "?")) {
+			foreach ($migrations as $migration) {
+				if (!$this->migrateDown($migration)) {
+					echo "\nMigration failed. The rest of the migrations are canceled.\n";
+					return;
+				}
+			}
+			echo "\nMigrated down successfully.\n";
+		}
+	}
+
+	/**
+	 * Redoes the last few migrations.
+	 *
+	 * This command will first revert the specified migrations, and then apply
+	 * them again. For example,
+	 *
+	 * ~~~
+	 * yii migrate/redo     # redo the last applied migration
+	 * yii migrate/redo 3   # redo the last 3 applied migrations
+	 * ~~~
+	 *
+	 * @param integer $limit the number of migrations to be redone. Defaults to 1,
+	 * meaning the last applied migration will be redone.
+	 * @throws Exception if the number of the steps specified is less than 1.
+	 */
+	public function actionRedo($limit = 1)
+	{
+		$limit = (int)$limit;
+		if ($limit < 1) {
+			throw new Exception("The step argument must be greater than 0.");
+		}
+
+		$migrations = $this->getMigrationHistory($limit);
+		if (empty($migrations)) {
+			echo "No migration has been done before.\n";
+			return;
+		}
+		$migrations = array_keys($migrations);
+
+		$n = count($migrations);
+		echo "Total $n " . ($n === 1 ? 'migration' : 'migrations') . " to be redone:\n";
+		foreach ($migrations as $migration) {
+			echo "    $migration\n";
+		}
+		echo "\n";
+
+		if ($this->confirm('Redo the above ' . ($n === 1 ? 'migration' : 'migrations') . "?")) {
+			foreach ($migrations as $migration) {
+				if (!$this->migrateDown($migration)) {
+					echo "\nMigration failed. The rest of the migrations are canceled.\n";
+					return;
+				}
+			}
+			foreach (array_reverse($migrations) as $migration) {
+				if (!$this->migrateUp($migration)) {
+					echo "\nMigration failed. The rest of the migrations migrations are canceled.\n";
+					return;
+				}
+			}
+			echo "\nMigration redone successfully.\n";
+		}
+	}
+
+	/**
+	 * Upgrades or downgrades till the specified version.
+	 *
+	 * This command will first revert the specified migrations, and then apply
+	 * them again. For example,
+	 *
+	 * ~~~
+	 * yii migrate/to 101129_185401                      # using timestamp
+	 * yii migrate/to m101129_185401_create_user_table   # using full name
+	 * ~~~
+	 *
+	 * @param string $version the version name that the application should be migrated to.
+	 * This can be either the timestamp or the full name of the migration.
+	 * @throws Exception if the version argument is invalid
+	 */
+	public function actionTo($version)
+	{
+		$originalVersion = $version;
+		if (preg_match('/^m?(\d{6}_\d{6})(_.*?)?$/', $version, $matches)) {
+			$version = 'm' . $matches[1];
+		} else {
+			throw new Exception("The version argument must be either a timestamp (e.g. 101129_185401)\nor the full name of a migration (e.g. m101129_185401_create_user_table).");
+		}
+
+		// try migrate up
+		$migrations = $this->getNewMigrations();
+		foreach ($migrations as $i => $migration) {
+			if (strpos($migration, $version . '_') === 0) {
+				$this->actionUp($i + 1);
+				return;
+			}
+		}
+
+		// try migrate down
+		$migrations = array_keys($this->getMigrationHistory(-1));
+		foreach ($migrations as $i => $migration) {
+			if (strpos($migration, $version . '_') === 0) {
+				if ($i === 0) {
+					echo "Already at '$originalVersion'. Nothing needs to be done.\n";
+				} else {
+					$this->actionDown($i);
+				}
+				return;
+			}
+		}
+
+		throw new Exception("Unable to find the version '$originalVersion'.");
+	}
+
+	/**
+	 * Modifies the migration history to the specified version.
+	 *
+	 * No actual migration will be performed.
+	 *
+	 * ~~~
+	 * yii migrate/mark 101129_185401                      # using timestamp
+	 * yii migrate/mark m101129_185401_create_user_table   # using full name
+	 * ~~~
+	 *
+	 * @param string $version the version at which the migration history should be marked.
+	 * This can be either the timestamp or the full name of the migration.
+	 * @throws Exception if the version argument is invalid or the version cannot be found.
+	 */
+	public function actionMark($version)
+	{
+		$originalVersion = $version;
+		if (preg_match('/^m?(\d{6}_\d{6})(_.*?)?$/', $version, $matches)) {
+			$version = 'm' . $matches[1];
+		} else {
+			throw new Exception("The version argument must be either a timestamp (e.g. 101129_185401)\nor the full name of a migration (e.g. m101129_185401_create_user_table).");
+		}
+
+		// try mark up
+		$migrations = $this->getNewMigrations();
+		foreach ($migrations as $i => $migration) {
+			if (strpos($migration, $version . '_') === 0) {
+				if ($this->confirm("Set migration history at $originalVersion?")) {
+					$command = $this->db->createCommand();
+					for ($j = 0; $j <= $i; ++$j) {
+						$command->insert($this->migrationTable, array(
+							'version' => $migrations[$j],
+							'apply_time' => time(),
+						))->execute();
+					}
+					echo "The migration history is set at $originalVersion.\nNo actual migration was performed.\n";
+				}
+				return;
+			}
+		}
+
+		// try mark down
+		$migrations = array_keys($this->getMigrationHistory(-1));
+		foreach ($migrations as $i => $migration) {
+			if (strpos($migration, $version . '_') === 0) {
+				if ($i === 0) {
+					echo "Already at '$originalVersion'. Nothing needs to be done.\n";
+				} else {
+					if ($this->confirm("Set migration history at $originalVersion?")) {
+						$command = $this->db->createCommand();
+						for ($j = 0; $j < $i; ++$j) {
+							$command->delete($this->migrationTable, array(
+								'version' => $migrations[$j],
+							))->execute();
+						}
+						echo "The migration history is set at $originalVersion.\nNo actual migration was performed.\n";
+					}
+				}
+				return;
+			}
+		}
+
+		throw new Exception("Unable to find the version '$originalVersion'.");
+	}
+
+	/**
+	 * Displays the migration history.
+	 *
+	 * This command will show the list of migrations that have been applied
+	 * so far. For example,
+	 *
+	 * ~~~
+	 * yii migrate/history     # showing the last 10 migrations
+	 * yii migrate/history 5   # showing the last 5 migrations
+	 * yii migrate/history 0   # showing the whole history
+	 * ~~~
+	 *
+	 * @param integer $limit the maximum number of migrations to be displayed.
+	 * If it is 0, the whole migration history will be displayed.
+	 */
+	public function actionHistory($limit = 10)
+	{
+		$limit = (int)$limit;
+		$migrations = $this->getMigrationHistory($limit);
+		if (empty($migrations)) {
+			echo "No migration has been done before.\n";
+		} else {
+			$n = count($migrations);
+			if ($limit > 0) {
+				echo "Showing the last $n applied " . ($n === 1 ? 'migration' : 'migrations') . ":\n";
+			} else {
+				echo "Total $n " . ($n === 1 ? 'migration has' : 'migrations have') . " been applied before:\n";
+			}
+			foreach ($migrations as $version => $time) {
+				echo "    (" . date('Y-m-d H:i:s', $time) . ') ' . $version . "\n";
+			}
+		}
+	}
+
+	/**
+	 * Displays the un-applied new migrations.
+	 *
+	 * This command will show the new migrations that have not been applied.
+	 * For example,
+	 *
+	 * ~~~
+	 * yii migrate/new     # showing the first 10 new migrations
+	 * yii migrate/new 5   # showing the first 5 new migrations
+	 * yii migrate/new 0   # showing all new migrations
+	 * ~~~
+	 *
+	 * @param integer $limit the maximum number of new migrations to be displayed.
+	 * If it is 0, all available new migrations will be displayed.
+	 */
+	public function actionNew($limit = 10)
+	{
+		$limit = (int)$limit;
+		$migrations = $this->getNewMigrations();
+		if (empty($migrations)) {
+			echo "No new migrations found. Your system is up-to-date.\n";
+		} else {
+			$n = count($migrations);
+			if ($limit > 0 && $n > $limit) {
+				$migrations = array_slice($migrations, 0, $limit);
+				echo "Showing $limit out of $n new " . ($n === 1 ? 'migration' : 'migrations') . ":\n";
+			} else {
+				echo "Found $n new " . ($n === 1 ? 'migration' : 'migrations') . ":\n";
+			}
+
+			foreach ($migrations as $migration) {
+				echo "    " . $migration . "\n";
+			}
+		}
+	}
+
+	/**
+	 * Creates a new migration.
+	 *
+	 * This command creates a new migration using the available migration template.
+	 * After using this command, developers should modify the created migration
+	 * skeleton by filling up the actual migration logic.
+	 *
+	 * ~~~
+	 * yii migrate/create create_user_table
+	 * ~~~
+	 *
+	 * @param string $name the name of the new migration. This should only contain
+	 * letters, digits and/or underscores.
+	 * @throws Exception if the name argument is invalid.
+	 */
+	public function actionCreate($name)
+	{
+		if (!preg_match('/^\w+$/', $name)) {
+			throw new Exception("The migration name should contain letters, digits and/or underscore characters only.");
+		}
+
+		$name = 'm' . gmdate('ymd_His') . '_' . $name;
+		$file = $this->migrationPath . DIRECTORY_SEPARATOR . $name . '.php';
+
+		if ($this->confirm("Create new migration '$file'?")) {
+			$content = $this->renderFile(Yii::getAlias($this->templateFile), array(
+				'className' => $name,
+			));
+			file_put_contents($file, $content);
+			echo "New migration created successfully.\n";
+		}
+	}
+
+	/**
+	 * Upgrades with the specified migration class.
+	 * @param string $class the migration class name
+	 * @return boolean whether the migration is successful
+	 */
+	protected function migrateUp($class)
+	{
+		if ($class === self::BASE_MIGRATION) {
+			return true;
+		}
+
+		echo "*** applying $class\n";
+		$start = microtime(true);
+		$migration = $this->createMigration($class);
+		if ($migration->up() !== false) {
+			$this->db->createCommand()->insert($this->migrationTable, array(
+				'version' => $class,
+				'apply_time' => time(),
+			))->execute();
+			$time = microtime(true) - $start;
+			echo "*** applied $class (time: " . sprintf("%.3f", $time) . "s)\n\n";
+			return true;
+		} else {
+			$time = microtime(true) - $start;
+			echo "*** failed to apply $class (time: " . sprintf("%.3f", $time) . "s)\n\n";
+			return false;
+		}
+	}
+
+	/**
+	 * Downgrades with the specified migration class.
+	 * @param string $class the migration class name
+	 * @return boolean whether the migration is successful
+	 */
+	protected function migrateDown($class)
+	{
+		if ($class === self::BASE_MIGRATION) {
+			return true;
+		}
+
+		echo "*** reverting $class\n";
+		$start = microtime(true);
+		$migration = $this->createMigration($class);
+		if ($migration->down() !== false) {
+			$this->db->createCommand()->delete($this->migrationTable, array(
+				'version' => $class,
+			))->execute();
+			$time = microtime(true) - $start;
+			echo "*** reverted $class (time: " . sprintf("%.3f", $time) . "s)\n\n";
+			return true;
+		} else {
+			$time = microtime(true) - $start;
+			echo "*** failed to revert $class (time: " . sprintf("%.3f", $time) . "s)\n\n";
+			return false;
+		}
+	}
+
+	/**
+	 * Creates a new migration instance.
+	 * @param string $class the migration class name
+	 * @return \yii\db\Migration the migration instance
+	 */
+	protected function createMigration($class)
+	{
+		$file = $this->migrationPath . DIRECTORY_SEPARATOR . $class . '.php';
+		require_once($file);
+		return new $class(array(
+			'db' => $this->db,
+		));
+	}
+
+	/**
+	 * Returns the migration history.
+	 * @param integer $limit the maximum number of records in the history to be returned
+	 * @return array the migration history
+	 */
+	protected function getMigrationHistory($limit)
+	{
+		if ($this->db->schema->getTableSchema($this->migrationTable, true) === null) {
+			$this->createMigrationHistoryTable();
+		}
+		$query = new Query;
+		$rows = $query->select(array('version', 'apply_time'))
+			->from($this->migrationTable)
+			->orderBy('version DESC')
+			->limit($limit)
+			->createCommand()
+			->queryAll();
+		$history = ArrayHelper::map($rows, 'version', 'apply_time');
+		unset($history[self::BASE_MIGRATION]);
+		return $history;
+	}
+
+	/**
+	 * Creates the migration history table.
+	 */
+	protected function createMigrationHistoryTable()
+	{
+		echo 'Creating migration history table "' . $this->migrationTable . '"...';
+		$this->db->createCommand()->createTable($this->migrationTable, array(
+			'version' => 'varchar(255) NOT NULL PRIMARY KEY',
+			'apply_time' => 'integer',
+		))->execute();
+		$this->db->createCommand()->insert($this->migrationTable, array(
+			'version' => self::BASE_MIGRATION,
+			'apply_time' => time(),
+		))->execute();
+		echo "done.\n";
+	}
+
+	/**
+	 * Returns the migrations that are not applied.
+	 * @return array list of new migrations
+	 */
+	protected function getNewMigrations()
+	{
+		$applied = array();
+		foreach ($this->getMigrationHistory(-1) as $version => $time) {
+			$applied[substr($version, 1, 13)] = true;
+		}
+
+		$migrations = array();
+		$handle = opendir($this->migrationPath);
+		while (($file = readdir($handle)) !== false) {
+			if ($file === '.' || $file === '..') {
+				continue;
+			}
+			$path = $this->migrationPath . DIRECTORY_SEPARATOR . $file;
+			if (preg_match('/^(m(\d{6}_\d{6})_.*?)\.php$/', $file, $matches) && is_file($path) && !isset($applied[$matches[2]])) {
+				$migrations[] = $matches[1];
+			}
+		}
+		closedir($handle);
+		sort($migrations);
+		return $migrations;
+	}
+}
diff --git a/framework/yii/db/Connection.php b/framework/yii/db/Connection.php
index 3a4d0ad..0dd47d8 100644
--- a/framework/yii/db/Connection.php
+++ b/framework/yii/db/Connection.php
@@ -305,8 +305,7 @@ class Connection extends Component
 				$this->pdo = $this->createPdoInstance();
 				$this->initConnection();
 				Yii::endProfile($token, __METHOD__);
-			}
-			catch (\PDOException $e) {
+			} catch (\PDOException $e) {
 				Yii::endProfile($token, __METHOD__);
 				Yii::error("Failed to open DB connection ({$this->dsn}): " . $e->getMessage(), __METHOD__);
 				$message = YII_DEBUG ? 'Failed to open DB connection: ' . $e->getMessage() : 'Failed to open DB connection.';
@@ -508,7 +507,7 @@ class Connection extends Component
 	{
 		$db = $this;
 		return preg_replace_callback('/(\\{\\{([%\w\-\. ]+)\\}\\}|\\[\\[([\w\-\. ]+)\\]\\])/',
-			function($matches) use($db) {
+			function ($matches) use ($db) {
 				if (isset($matches[3])) {
 					return $db->quoteColumnName($matches[3]);
 				} else {
diff --git a/framework/yii/debug/Module.php b/framework/yii/debug/Module.php
index 3421d95..a680f53 100644
--- a/framework/yii/debug/Module.php
+++ b/framework/yii/debug/Module.php
@@ -14,4 +14,4 @@ namespace yii\debug;
 class Module extends \yii\base\Module
 {
 	public $controllerNamespace = 'yii\debug\controllers';
-}
\ No newline at end of file
+}
diff --git a/framework/yii/debug/controllers/DefaultController.php b/framework/yii/debug/controllers/DefaultController.php
index 4d686ee..f1160b1 100644
--- a/framework/yii/debug/controllers/DefaultController.php
+++ b/framework/yii/debug/controllers/DefaultController.php
@@ -31,4 +31,4 @@ class DefaultController extends Controller
 			echo "Unable to find debug data tagged with '$tag'.";
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/framework/yii/helpers/Json.php b/framework/yii/helpers/Json.php
index 5e77c3f..117db1f 100644
--- a/framework/yii/helpers/Json.php
+++ b/framework/yii/helpers/Json.php
@@ -14,5 +14,4 @@ namespace yii\helpers;
  */
 class Json extends base\Json
 {
-	
 }
diff --git a/framework/yii/helpers/base/Console.php b/framework/yii/helpers/base/Console.php
index 6ad0b7b..e3acbd9 100644
--- a/framework/yii/helpers/base/Console.php
+++ b/framework/yii/helpers/base/Console.php
@@ -286,7 +286,7 @@ class Console
 	 * You can pass any of the FG_*, BG_* and TEXT_* constants and also [[xtermFgColor]] and [[xtermBgColor]].
 	 * @return string
 	 */
-	public static function ansiFormat($string, $format=array())
+	public static function ansiFormat($string, $format = array())
 	{
 		$code = implode(';', $format);
 		return "\033[0m" . ($code !== '' ? "\033[" . $code . "m" : '') . $string . "\033[0m";
@@ -589,11 +589,10 @@ class Console
 		if (static::isRunningOnWindows()) {
 			$output = array();
 			exec('mode con', $output);
-			if(isset($output) && strpos($output[1], 'CON')!==false) {
+			if (isset($output) && strpos($output[1], 'CON') !== false) {
 				return $size = array((int)preg_replace('~[^0-9]~', '', $output[3]), (int)preg_replace('~[^0-9]~', '', $output[4]));
 			}
 		} else {
-
 			// try stty if available
 			$stty = array();
 			if (exec('stty -a 2>&1', $stty) && preg_match('/rows\s+(\d+);\s*columns\s+(\d+);/mi', implode(' ', $stty), $matches)) {
diff --git a/framework/yii/helpers/base/Html.php b/framework/yii/helpers/base/Html.php
index 9a0001c..47385e2 100644
--- a/framework/yii/helpers/base/Html.php
+++ b/framework/yii/helpers/base/Html.php
@@ -1479,5 +1479,4 @@ class Html
 		$name = strtolower(static::getInputName($model, $attribute));
 		return str_replace(array('[]', '][', '[', ']', ' '), array('', '-', '-', '', '-'), $name);
 	}
-
 }
diff --git a/framework/yii/helpers/base/Inflector.php b/framework/yii/helpers/base/Inflector.php
index cc5d33f..f500c4c 100644
--- a/framework/yii/helpers/base/Inflector.php
+++ b/framework/yii/helpers/base/Inflector.php
@@ -50,7 +50,7 @@ class Inflector
 		'/(ax|cris|test)is$/i' => '\1es',
 		'/s$/' => 's',
 		'/^$/' => '',
-		'/$/' => 's',		
+		'/$/' => 's',
 	);
 	/**
 	 * @var array the rules for converting a word into its singular form.
@@ -94,7 +94,7 @@ class Inflector
 		'/(n)ews$/i' => '\1\2ews',
 		'/eaus$/' => 'eau',
 		'/^(.*us)$/' => '\\1',
-		'/s$/i' => '',		
+		'/s$/i' => '',
 	);
 	/**
 	 * @var array the special rules for converting a word between its plural form and singular form.
@@ -468,7 +468,7 @@ class Inflector
 		if (in_array(($number % 100), range(11, 13))) {
 			return $number . 'th';
 		}
-		switch (($number % 10)) {
+		switch ($number % 10) {
 			case 1: return $number . 'st';
 			case 2: return $number . 'nd';
 			case 3: return $number . 'rd';
diff --git a/framework/yii/i18n/MessageSource.php b/framework/yii/i18n/MessageSource.php
index cf23338..90adbfb 100644
--- a/framework/yii/i18n/MessageSource.php
+++ b/framework/yii/i18n/MessageSource.php
@@ -118,4 +118,3 @@ class MessageSource extends Component
 		}
 	}
 }
-
diff --git a/framework/yii/jui/Accordion.php b/framework/yii/jui/Accordion.php
index f36c981..898649e 100644
--- a/framework/yii/jui/Accordion.php
+++ b/framework/yii/jui/Accordion.php
@@ -125,7 +125,7 @@ class Accordion extends Widget
 			$items[] = Html::tag($headerTag, $item['header'], $headerOptions);
 			$options = array_merge($this->itemOptions, ArrayHelper::getValue($item, 'options', array()));
 			$tag = ArrayHelper::remove($options, 'tag', 'div');
-			$items[] = Html::tag($tag, $item['content'], $options);;
+			$items[] = Html::tag($tag, $item['content'], $options);
 		}
 
 		return implode("\n", $items);
diff --git a/framework/yii/jui/Menu.php b/framework/yii/jui/Menu.php
index d4e390c..83523e7 100644
--- a/framework/yii/jui/Menu.php
+++ b/framework/yii/jui/Menu.php
@@ -10,7 +10,6 @@ namespace yii\jui;
 use Yii;
 use yii\helpers\Json;
 
-
 /**
  * Menu renders a menu jQuery UI widget.
  *
diff --git a/framework/yii/jui/Widget.php b/framework/yii/jui/Widget.php
index d34a8bd..5724919 100644
--- a/framework/yii/jui/Widget.php
+++ b/framework/yii/jui/Widget.php
@@ -10,7 +10,6 @@ namespace yii\jui;
 use Yii;
 use yii\helpers\Json;
 
-
 /**
  * \yii\jui\Widget is the base class for all jQuery UI widgets.
  *
diff --git a/framework/yii/rbac/DbManager.php b/framework/yii/rbac/DbManager.php
index b7a5d4e..8d3bea2 100644
--- a/framework/yii/rbac/DbManager.php
+++ b/framework/yii/rbac/DbManager.php
@@ -493,8 +493,9 @@ class DbManager extends Manager
 				'bizRule' => $row['biz_rule'],
 				'data' => $data,
 			));
-		} else
+		} else {
 			return null;
+		}
 	}
 
 	/**
diff --git a/framework/yii/rbac/PhpManager.php b/framework/yii/rbac/PhpManager.php
index 7a476e0..8ecc75c 100644
--- a/framework/yii/rbac/PhpManager.php
+++ b/framework/yii/rbac/PhpManager.php
@@ -468,7 +468,7 @@ class PhpManager extends Manager
 						'bizRule' => $assignment['bizRule'],
 						'data' => $assignment['data'],
 					));
- 				}
+				}
 			}
 		}
 	}
diff --git a/framework/yii/requirements/requirements.php b/framework/yii/requirements/requirements.php
index 63aa70d..670544d 100644
--- a/framework/yii/requirements/requirements.php
+++ b/framework/yii/requirements/requirements.php
@@ -45,4 +45,4 @@ return array(
 		'by' => '<a href="http://www.php.net/manual/en/book.intl.php">Internationalization</a> support',
 		'memo' => 'PHP Intl extension 1.0.2 or higher is required when you want to use <abbr title="Internationalized domain names">IDN</abbr>-feature of EmailValidator or UrlValidator or the <code>yii\i18n\Formatter</code> class.'
 	),
-);
\ No newline at end of file
+);
diff --git a/framework/yii/validators/CaptchaValidator.php b/framework/yii/validators/CaptchaValidator.php
index dbc263e..01870d3 100644
--- a/framework/yii/validators/CaptchaValidator.php
+++ b/framework/yii/validators/CaptchaValidator.php
@@ -117,4 +117,3 @@ class CaptchaValidator extends Validator
 		return 'yii.validation.captcha(value, messages, ' . json_encode($options) . ');';
 	}
 }
-
diff --git a/framework/yii/validators/DateValidator.php b/framework/yii/validators/DateValidator.php
index 2f3ce2d..2f9e18b 100644
--- a/framework/yii/validators/DateValidator.php
+++ b/framework/yii/validators/DateValidator.php
@@ -73,4 +73,3 @@ class DateValidator extends Validator
 		return DateTime::createFromFormat($this->format, $value) !== false;
 	}
 }
-
diff --git a/framework/yii/validators/DefaultValueValidator.php b/framework/yii/validators/DefaultValueValidator.php
index 185dbd4..20df5fd 100644
--- a/framework/yii/validators/DefaultValueValidator.php
+++ b/framework/yii/validators/DefaultValueValidator.php
@@ -40,4 +40,3 @@ class DefaultValueValidator extends Validator
 		}
 	}
 }
-
diff --git a/framework/yii/validators/ExistValidator.php b/framework/yii/validators/ExistValidator.php
index 7c45491..9c74890 100644
--- a/framework/yii/validators/ExistValidator.php
+++ b/framework/yii/validators/ExistValidator.php
@@ -99,4 +99,3 @@ class ExistValidator extends Validator
 		return $query->exists();
 	}
 }
-
diff --git a/framework/yii/validators/FilterValidator.php b/framework/yii/validators/FilterValidator.php
index 72a9a9d..560feb1 100644
--- a/framework/yii/validators/FilterValidator.php
+++ b/framework/yii/validators/FilterValidator.php
@@ -6,6 +6,7 @@
  */
 
 namespace yii\validators;
+
 use yii\base\InvalidConfigException;
 
 /**
diff --git a/framework/yii/validators/RangeValidator.php b/framework/yii/validators/RangeValidator.php
index a915275..90256df 100644
--- a/framework/yii/validators/RangeValidator.php
+++ b/framework/yii/validators/RangeValidator.php
@@ -35,7 +35,7 @@ class RangeValidator extends Validator
 	 * @var boolean whether to invert the validation logic. Defaults to false. If set to true,
 	 * the attribute value should NOT be among the list of values defined via [[range]].
 	 **/
- 	public $not = false;
+	public $not = false;
 
 	/**
 	 * Initializes the validator.
diff --git a/framework/yii/validators/RegularExpressionValidator.php b/framework/yii/validators/RegularExpressionValidator.php
index 417f2bc..72a5a74 100644
--- a/framework/yii/validators/RegularExpressionValidator.php
+++ b/framework/yii/validators/RegularExpressionValidator.php
@@ -32,7 +32,7 @@ class RegularExpressionValidator extends Validator
 	 * the regular expression defined via [[pattern]] should NOT match the attribute value.
 	 * @throws InvalidConfigException if the "pattern" is not a valid regular expression
 	 **/
- 	public $not = false;
+	public $not = false;
 
 	/**
 	 * Initializes the validator.
diff --git a/framework/yii/validators/StringValidator.php b/framework/yii/validators/StringValidator.php
index abe4634..e06354b 100644
--- a/framework/yii/validators/StringValidator.php
+++ b/framework/yii/validators/StringValidator.php
@@ -174,4 +174,3 @@ class StringValidator extends Validator
 		return 'yii.validation.string(value, messages, ' . json_encode($options) . ');';
 	}
 }
-
diff --git a/framework/yii/validators/UrlValidator.php b/framework/yii/validators/UrlValidator.php
index 6cf12c1..18f2f45 100644
--- a/framework/yii/validators/UrlValidator.php
+++ b/framework/yii/validators/UrlValidator.php
@@ -99,7 +99,7 @@ class UrlValidator extends Validator
 			}
 
 			if ($this->enableIDN) {
-				$value = preg_replace_callback('/:\/\/([^\/]+)/', function($matches) {
+				$value = preg_replace_callback('/:\/\/([^\/]+)/', function ($matches) {
 					return '://' . idn_to_ascii($matches[1]);
 				}, $value);
 			}
diff --git a/framework/yii/validators/Validator.php b/framework/yii/validators/Validator.php
index 6b103bf..2629002 100644
--- a/framework/yii/validators/Validator.php
+++ b/framework/yii/validators/Validator.php
@@ -179,7 +179,7 @@ abstract class Validator extends Component
 		}
 		foreach ($attributes as $attribute) {
 			$skip = $this->skipOnError && $object->hasErrors($attribute)
-				 || $this->skipOnEmpty && $this->isEmpty($object->$attribute);
+				|| $this->skipOnEmpty && $this->isEmpty($object->$attribute);
 			if (!$skip) {
 				$this->validateAttribute($object, $attribute);
 			}
diff --git a/framework/yii/web/HeaderCollection.php b/framework/yii/web/HeaderCollection.php
index 7a24854..c7e1462 100644
--- a/framework/yii/web/HeaderCollection.php
+++ b/framework/yii/web/HeaderCollection.php
@@ -11,7 +11,6 @@ use Yii;
 use yii\base\Object;
 use ArrayIterator;
 
-
 /**
  * HeaderCollection is used by [[Response]] to maintain the currently registered HTTP headers.
  *
diff --git a/framework/yii/web/PageCache.php b/framework/yii/web/PageCache.php
index 2fe36b3..8b28e62 100644
--- a/framework/yii/web/PageCache.php
+++ b/framework/yii/web/PageCache.php
@@ -1,104 +1,104 @@
-<?php
-/**
- * @link http://www.yiiframework.com/
- * @copyright Copyright (c) 2008 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-namespace yii\web;
-
-use Yii;
-use yii\base\ActionFilter;
-use yii\base\Action;
-use yii\base\View;
-use yii\caching\Dependency;
-
-/**
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @since 2.0
- */
-class PageCache extends ActionFilter
-{
-	/**
-	 * @var boolean whether the content being cached should be differentiated according to the route.
-	 * A route consists of the requested controller ID and action ID. Defaults to true.
-	 */
-	public $varyByRoute = true;
-	/**
-	 * @var string the application component ID of the [[\yii\caching\Cache|cache]] object.
-	 */
-	public $cache = 'cache';
-	/**
-	 * @var integer number of seconds that the data can remain valid in cache.
-	 * Use 0 to indicate that the cached data will never expire.
-	 */
-	public $duration = 60;
-	/**
-	 * @var array|Dependency the dependency that the cached content depends on.
-	 * This can be either a [[Dependency]] object or a configuration array for creating the dependency object.
-	 * For example,
-	 *
-	 * ~~~
-	 * array(
-	 *     'class' => 'yii\caching\DbDependency',
-	 *     'sql' => 'SELECT MAX(lastModified) FROM Post',
-	 * )
-	 * ~~~
-	 *
-	 * would make the output cache depends on the last modified time of all posts.
-	 * If any post has its modification time changed, the cached content would be invalidated.
-	 */
-	public $dependency;
-	/**
-	 * @var array list of factors that would cause the variation of the content being cached.
-	 * Each factor is a string representing a variation (e.g. the language, a GET parameter).
-	 * The following variation setting will cause the content to be cached in different versions
-	 * according to the current application language:
-	 *
-	 * ~~~
-	 * array(
-	 *     Yii::$app->language,
-	 * )
-	 */
-	public $variations;
-	/**
-	 * @var boolean whether to enable the fragment cache. You may use this property to turn on and off
-	 * the fragment cache according to specific setting (e.g. enable fragment cache only for GET requests).
-	 */
-	public $enabled = true;
-
-
-	public function init()
-	{
-		parent::init();
-		if ($this->view === null) {
-			$this->view = Yii::$app->getView();
-		}
-	}
-
-	/**
-	 * This method is invoked right before an action is to be executed (after all possible filters.)
-	 * You may override this method to do last-minute preparation for the action.
-	 * @param Action $action the action to be executed.
-	 * @return boolean whether the action should continue to be executed.
-	 */
-	public function beforeAction($action)
-	{
-		$properties = array();
-		foreach (array('cache', 'duration', 'dependency', 'variations', 'enabled') as $name) {
-			$properties[$name] = $this->$name;
-		}
-		$id = $this->varyByRoute ? $action->getUniqueId() : __CLASS__;
-		return $this->view->beginCache($id, $properties);
-	}
-
-	/**
-	 * This method is invoked right after an action is executed.
-	 * You may override this method to do some postprocessing for the action.
-	 * @param Action $action the action just executed.
-	 */
-	public function afterAction($action)
-	{
-		$this->view->endCache();
-	}
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\web;
+
+use Yii;
+use yii\base\ActionFilter;
+use yii\base\Action;
+use yii\base\View;
+use yii\caching\Dependency;
+
+/**
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class PageCache extends ActionFilter
+{
+	/**
+	 * @var boolean whether the content being cached should be differentiated according to the route.
+	 * A route consists of the requested controller ID and action ID. Defaults to true.
+	 */
+	public $varyByRoute = true;
+	/**
+	 * @var string the application component ID of the [[\yii\caching\Cache|cache]] object.
+	 */
+	public $cache = 'cache';
+	/**
+	 * @var integer number of seconds that the data can remain valid in cache.
+	 * Use 0 to indicate that the cached data will never expire.
+	 */
+	public $duration = 60;
+	/**
+	 * @var array|Dependency the dependency that the cached content depends on.
+	 * This can be either a [[Dependency]] object or a configuration array for creating the dependency object.
+	 * For example,
+	 *
+	 * ~~~
+	 * array(
+	 *     'class' => 'yii\caching\DbDependency',
+	 *     'sql' => 'SELECT MAX(lastModified) FROM Post',
+	 * )
+	 * ~~~
+	 *
+	 * would make the output cache depends on the last modified time of all posts.
+	 * If any post has its modification time changed, the cached content would be invalidated.
+	 */
+	public $dependency;
+	/**
+	 * @var array list of factors that would cause the variation of the content being cached.
+	 * Each factor is a string representing a variation (e.g. the language, a GET parameter).
+	 * The following variation setting will cause the content to be cached in different versions
+	 * according to the current application language:
+	 *
+	 * ~~~
+	 * array(
+	 *     Yii::$app->language,
+	 * )
+	 */
+	public $variations;
+	/**
+	 * @var boolean whether to enable the fragment cache. You may use this property to turn on and off
+	 * the fragment cache according to specific setting (e.g. enable fragment cache only for GET requests).
+	 */
+	public $enabled = true;
+
+
+	public function init()
+	{
+		parent::init();
+		if ($this->view === null) {
+			$this->view = Yii::$app->getView();
+		}
+	}
+
+	/**
+	 * This method is invoked right before an action is to be executed (after all possible filters.)
+	 * You may override this method to do last-minute preparation for the action.
+	 * @param Action $action the action to be executed.
+	 * @return boolean whether the action should continue to be executed.
+	 */
+	public function beforeAction($action)
+	{
+		$properties = array();
+		foreach (array('cache', 'duration', 'dependency', 'variations', 'enabled') as $name) {
+			$properties[$name] = $this->$name;
+		}
+		$id = $this->varyByRoute ? $action->getUniqueId() : __CLASS__;
+		return $this->view->beginCache($id, $properties);
+	}
+
+	/**
+	 * This method is invoked right after an action is executed.
+	 * You may override this method to do some postprocessing for the action.
+	 * @param Action $action the action just executed.
+	 */
+	public function afterAction($action)
+	{
+		$this->view->endCache();
+	}
 }
diff --git a/framework/yii/web/Request.php b/framework/yii/web/Request.php
index e73c3b1..7cec044 100644
--- a/framework/yii/web/Request.php
+++ b/framework/yii/web/Request.php
@@ -792,4 +792,3 @@ class Request extends \yii\base\Request
 		}
 	}
 }
-
diff --git a/framework/yii/web/User.php b/framework/yii/web/User.php
index 5522bbb..005f987 100644
--- a/framework/yii/web/User.php
+++ b/framework/yii/web/User.php
@@ -221,7 +221,7 @@ class User extends Component
 			if ($destroySession) {
 				Yii::$app->getSession()->destroy();
 			}
- 			$this->afterLogout($identity);
+			$this->afterLogout($identity);
 		}
 	}
 
diff --git a/framework/yii/widgets/FragmentCache.php b/framework/yii/widgets/FragmentCache.php
index 8445955..0fd8646 100644
--- a/framework/yii/widgets/FragmentCache.php
+++ b/framework/yii/widgets/FragmentCache.php
@@ -1,174 +1,174 @@
-<?php
-/**
- * @link http://www.yiiframework.com/
- * @copyright Copyright (c) 2008 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-namespace yii\widgets;
-
-use Yii;
-use yii\base\Widget;
-use yii\caching\Cache;
-use yii\caching\Dependency;
-
-/**
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @since 2.0
- */
-class FragmentCache extends Widget
-{
-	/**
-	 * @var Cache|string the cache object or the application component ID of the cache object.
-	 * After the FragmentCache object is created, if you want to change this property,
-	 * you should only assign it with a cache object.
-	 */
-	public $cache = 'cache';
-	/**
-	 * @var integer number of seconds that the data can remain valid in cache.
-	 * Use 0 to indicate that the cached data will never expire.
-	 */
-	public $duration = 60;
-	/**
-	 * @var array|Dependency the dependency that the cached content depends on.
-	 * This can be either a [[Dependency]] object or a configuration array for creating the dependency object.
-	 * For example,
-	 *
-	 * ~~~
-	 * array(
-	 *     'class' => 'yii\caching\DbDependency',
-	 *     'sql' => 'SELECT MAX(lastModified) FROM Post',
-	 * )
-	 * ~~~
-	 *
-	 * would make the output cache depends on the last modified time of all posts.
-	 * If any post has its modification time changed, the cached content would be invalidated.
-	 */
-	public $dependency;
-	/**
-	 * @var array list of factors that would cause the variation of the content being cached.
-	 * Each factor is a string representing a variation (e.g. the language, a GET parameter).
-	 * The following variation setting will cause the content to be cached in different versions
-	 * according to the current application language:
-	 *
-	 * ~~~
-	 * array(
-	 *     Yii::$app->language,
-	 * )
-	 */
-	public $variations;
-	/**
-	 * @var boolean whether to enable the fragment cache. You may use this property to turn on and off
-	 * the fragment cache according to specific setting (e.g. enable fragment cache only for GET requests).
-	 */
-	public $enabled = true;
-	/**
-	 * @var array a list of placeholders for embedding dynamic contents. This property
-	 * is used internally to implement the content caching feature. Do not modify it.
-	 */
-	public $dynamicPlaceholders;
-
-	/**
-	 * Initializes the FragmentCache object.
-	 */
-	public function init()
-	{
-		parent::init();
-
-		if (!$this->enabled) {
-			$this->cache = null;
-		} elseif (is_string($this->cache)) {
-			$this->cache = Yii::$app->getComponent($this->cache);
-		}
-
-		if ($this->getCachedContent() === false) {
-			$this->view->cacheStack[] = $this;
-			ob_start();
-			ob_implicit_flush(false);
-		}
-	}
-
-	/**
-	 * Marks the end of content to be cached.
-	 * Content displayed before this method call and after {@link init()}
-	 * will be captured and saved in cache.
-	 * This method does nothing if valid content is already found in cache.
-	 */
-	public function run()
-	{
-		if (($content = $this->getCachedContent()) !== false) {
-			echo $content;
-		} elseif ($this->cache instanceof Cache) {
-			$content = ob_get_clean();
-			array_pop($this->view->cacheStack);
-			if (is_array($this->dependency)) {
-				$this->dependency = Yii::createObject($this->dependency);
-			}
-			$data = array($content, $this->dynamicPlaceholders);
-			$this->cache->set($this->calculateKey(), $data, $this->duration, $this->dependency);
-
-			if (empty($this->view->cacheStack) && !empty($this->dynamicPlaceholders)) {
-				$content = $this->updateDynamicContent($content, $this->dynamicPlaceholders);
-			}
-			echo $content;
-		}
-	}
-
-	/**
-	 * @var string|boolean the cached content. False if the content is not cached.
-	 */
-	private $_content;
-
-	/**
-	 * Returns the cached content if available.
-	 * @return string|boolean the cached content. False is returned if valid content is not found in the cache.
-	 */
-	public function getCachedContent()
-	{
-		if ($this->_content === null) {
-			$this->_content = false;
-			if ($this->cache instanceof Cache) {
-				$key = $this->calculateKey();
-				$data = $this->cache->get($key);
-				if (is_array($data) && count($data) === 2) {
-					list ($content, $placeholders) = $data;
-					if (is_array($placeholders) && count($placeholders) > 0) {
-						if (empty($this->view->cacheStack)) {
-							// outermost cache: replace placeholder with dynamic content
-							$content = $this->updateDynamicContent($content, $placeholders);
-						}
-						foreach ($placeholders as $name => $statements) {
-							$this->view->addDynamicPlaceholder($name, $statements);
-						}
-					}
-					$this->_content = $content;
-				}
-			}
-		}
-		return $this->_content;
-	}
-
-	protected function updateDynamicContent($content, $placeholders)
-	{
-		foreach ($placeholders as $name => $statements) {
-			$placeholders[$name] = $this->view->evaluateDynamicContent($statements);
-		}
-		return strtr($content, $placeholders);
-	}
-
-	/**
-	 * Generates a unique key used for storing the content in cache.
-	 * The key generated depends on both [[id]] and [[variations]].
-	 * @return mixed a valid cache key
-	 */
-	protected function calculateKey()
-	{
-		$factors = array(__CLASS__, $this->getId());
-		if (is_array($this->variations)) {
-			foreach ($this->variations as $factor) {
-				$factors[] = $factor;
-			}
-		}
-		return $factors;
-	}
-}
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\widgets;
+
+use Yii;
+use yii\base\Widget;
+use yii\caching\Cache;
+use yii\caching\Dependency;
+
+/**
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class FragmentCache extends Widget
+{
+	/**
+	 * @var Cache|string the cache object or the application component ID of the cache object.
+	 * After the FragmentCache object is created, if you want to change this property,
+	 * you should only assign it with a cache object.
+	 */
+	public $cache = 'cache';
+	/**
+	 * @var integer number of seconds that the data can remain valid in cache.
+	 * Use 0 to indicate that the cached data will never expire.
+	 */
+	public $duration = 60;
+	/**
+	 * @var array|Dependency the dependency that the cached content depends on.
+	 * This can be either a [[Dependency]] object or a configuration array for creating the dependency object.
+	 * For example,
+	 *
+	 * ~~~
+	 * array(
+	 *     'class' => 'yii\caching\DbDependency',
+	 *     'sql' => 'SELECT MAX(lastModified) FROM Post',
+	 * )
+	 * ~~~
+	 *
+	 * would make the output cache depends on the last modified time of all posts.
+	 * If any post has its modification time changed, the cached content would be invalidated.
+	 */
+	public $dependency;
+	/**
+	 * @var array list of factors that would cause the variation of the content being cached.
+	 * Each factor is a string representing a variation (e.g. the language, a GET parameter).
+	 * The following variation setting will cause the content to be cached in different versions
+	 * according to the current application language:
+	 *
+	 * ~~~
+	 * array(
+	 *     Yii::$app->language,
+	 * )
+	 */
+	public $variations;
+	/**
+	 * @var boolean whether to enable the fragment cache. You may use this property to turn on and off
+	 * the fragment cache according to specific setting (e.g. enable fragment cache only for GET requests).
+	 */
+	public $enabled = true;
+	/**
+	 * @var array a list of placeholders for embedding dynamic contents. This property
+	 * is used internally to implement the content caching feature. Do not modify it.
+	 */
+	public $dynamicPlaceholders;
+
+	/**
+	 * Initializes the FragmentCache object.
+	 */
+	public function init()
+	{
+		parent::init();
+
+		if (!$this->enabled) {
+			$this->cache = null;
+		} elseif (is_string($this->cache)) {
+			$this->cache = Yii::$app->getComponent($this->cache);
+		}
+
+		if ($this->getCachedContent() === false) {
+			$this->view->cacheStack[] = $this;
+			ob_start();
+			ob_implicit_flush(false);
+		}
+	}
+
+	/**
+	 * Marks the end of content to be cached.
+	 * Content displayed before this method call and after {@link init()}
+	 * will be captured and saved in cache.
+	 * This method does nothing if valid content is already found in cache.
+	 */
+	public function run()
+	{
+		if (($content = $this->getCachedContent()) !== false) {
+			echo $content;
+		} elseif ($this->cache instanceof Cache) {
+			$content = ob_get_clean();
+			array_pop($this->view->cacheStack);
+			if (is_array($this->dependency)) {
+				$this->dependency = Yii::createObject($this->dependency);
+			}
+			$data = array($content, $this->dynamicPlaceholders);
+			$this->cache->set($this->calculateKey(), $data, $this->duration, $this->dependency);
+
+			if (empty($this->view->cacheStack) && !empty($this->dynamicPlaceholders)) {
+				$content = $this->updateDynamicContent($content, $this->dynamicPlaceholders);
+			}
+			echo $content;
+		}
+	}
+
+	/**
+	 * @var string|boolean the cached content. False if the content is not cached.
+	 */
+	private $_content;
+
+	/**
+	 * Returns the cached content if available.
+	 * @return string|boolean the cached content. False is returned if valid content is not found in the cache.
+	 */
+	public function getCachedContent()
+	{
+		if ($this->_content === null) {
+			$this->_content = false;
+			if ($this->cache instanceof Cache) {
+				$key = $this->calculateKey();
+				$data = $this->cache->get($key);
+				if (is_array($data) && count($data) === 2) {
+					list ($content, $placeholders) = $data;
+					if (is_array($placeholders) && count($placeholders) > 0) {
+						if (empty($this->view->cacheStack)) {
+							// outermost cache: replace placeholder with dynamic content
+							$content = $this->updateDynamicContent($content, $placeholders);
+						}
+						foreach ($placeholders as $name => $statements) {
+							$this->view->addDynamicPlaceholder($name, $statements);
+						}
+					}
+					$this->_content = $content;
+				}
+			}
+		}
+		return $this->_content;
+	}
+
+	protected function updateDynamicContent($content, $placeholders)
+	{
+		foreach ($placeholders as $name => $statements) {
+			$placeholders[$name] = $this->view->evaluateDynamicContent($statements);
+		}
+		return strtr($content, $placeholders);
+	}
+
+	/**
+	 * Generates a unique key used for storing the content in cache.
+	 * The key generated depends on both [[id]] and [[variations]].
+	 * @return mixed a valid cache key
+	 */
+	protected function calculateKey()
+	{
+		$factors = array(__CLASS__, $this->getId());
+		if (is_array($this->variations)) {
+			foreach ($this->variations as $factor) {
+				$factors[] = $factor;
+			}
+		}
+		return $factors;
+	}
+}
diff --git a/framework/yii/widgets/ListPager.php b/framework/yii/widgets/ListPager.php
index 699126d..30371d3 100644
--- a/framework/yii/widgets/ListPager.php
+++ b/framework/yii/widgets/ListPager.php
@@ -91,5 +91,4 @@ class ListPager extends Widget
 			'{page}' => $page + 1,
 		));
 	}
-
 }

From 879b494acbf4463781f37437f16b92d6c10dced0 Mon Sep 17 00:00:00 2001
From: Gevik Babakhani <gevik@xs4all.nl>
Date: Fri, 7 Jun 2013 21:28:58 +0200
Subject: [PATCH 14/17] Removed custom pgsql PDO and added defaultSchema as
 public property.

---
 framework/yii/db/Connection.php   |   2 -
 framework/yii/db/pgsql/PDO.php    | 103 --------------------------------------
 framework/yii/db/pgsql/Schema.php |  15 ++----
 3 files changed, 5 insertions(+), 115 deletions(-)
 delete mode 100644 framework/yii/db/pgsql/PDO.php

diff --git a/framework/yii/db/Connection.php b/framework/yii/db/Connection.php
index 6a252bf..3a4d0ad 100644
--- a/framework/yii/db/Connection.php
+++ b/framework/yii/db/Connection.php
@@ -343,8 +343,6 @@ class Connection extends Component
 			$driver = strtolower(substr($this->dsn, 0, $pos));
 			if ($driver === 'mssql' || $driver === 'dblib' || $driver === 'sqlsrv') {
 				$pdoClass = 'yii\db\mssql\PDO';
-			} else if ($driver === 'pgsql') {
-				$pdoClass = 'yii\db\pgsql\PDO';
 			}
 		}
 		return new $pdoClass($this->dsn, $this->username, $this->password, $this->attributes);
diff --git a/framework/yii/db/pgsql/PDO.php b/framework/yii/db/pgsql/PDO.php
deleted file mode 100644
index 3f5996a..0000000
--- a/framework/yii/db/pgsql/PDO.php
+++ /dev/null
@@ -1,103 +0,0 @@
-<?php
-
-/**
- * @link http://www.yiiframework.com/
- * @copyright Copyright (c) 2008 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-namespace yii\db\pgsql;
-
-/**
- * This is an extension of the default PDO class for PostgreSQL drivers.
- * It provides additional low level functionality for setting database 
- * configuration parameters.
- *
- * @author Gevik babakhani <gevikb@gmail.com>
- * @since 2.0
- */
-class PDO extends \PDO
-{
-
-	const OPT_SEARCH_PATH = 'search_path';
-	const OPT_DEFAULT_SCHEMA = 'default_schema';
-	const DEFAULT_SCHEMA = 'public';
-
-	private $_currentDatabase;
-
-	/**
-	 * Returns value of the last inserted ID.
-	 * @param string|null $sequence the sequence name. Defaults to null.
-	 * @return integer last inserted ID value.
-	 */
-	public function lastInsertId($sequence = null) {
-		if ($sequence !== null) {
-			$sequence = $this->quote($sequence);
-			return $this->query("SELECT currval({$sequence})")->fetchColumn();
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * Here we override the default PDO constructor in order to 
-	 * find and set the default schema search path.
-	 */
-	public function __construct($dsn, $username, $passwd, $options) {
-		$searchPath = null;
-		if (is_array($options)) {
-			if (isset($options[self::OPT_SEARCH_PATH])) {
-				$matches = null;
-				if (preg_match("/(\s?)+(\w)+((\s+)?,(\s+)?\w+)*/", $options[self::OPT_SEARCH_PATH], $matches) === 1) {
-					$searchPath = $matches[0];
-				}
-			}
-			if (isset($options[self::OPT_DEFAULT_SCHEMA])) {
-				$schema = trim($options[self::OPT_DEFAULT_SCHEMA]);
-				if (!empty($schema)) {
-					Schema::$DEFAULT_SCHEMA = $schema;
-				}
-			}
-			if (is_null(Schema::$DEFAULT_SCHEMA) || empty(Schema::$DEFAULT_SCHEMA)) {
-				Schema::$DEFAULT_SCHEMA = self::DEFAULT_SCHEMA;
-			}
-		}
-		parent::__construct($dsn, $username, $passwd, $options);
-		if (!is_null($searchPath)) {
-			$this->setSchemaSearchPath($searchPath);
-		}
-	}
-
-	/**
-	 * Returns the name of the current (connected) database 
-	 * @return string
-	 */
-	public function getCurrentDatabase() {
-		if (is_null($this->_currentDatabase)) {
-			return $this->query('select current_database()')->fetchColumn();
-		}
-	}
-
-	/**
-	 * Sets the schema search path of the current users session.
-	 * The syntax of the path is a comma separated string with 
-	 * your custom search path at the beginning and the "public"
-	 * schema at the end. 
-	 * 
-	 * This method automatically adds the "public" schema at the 
-	 * end of the search path if it is not provied.
-	 * @param string custom schema search path. defaults to public
-	 */
-	public function setSchemaSearchPath($searchPath = 'public') {
-		$schemas = explode(',', str_replace(' ', '', $searchPath));
-		if (end($schemas) !== 'public') {
-			$schemas[] = 'public';
-		}
-		foreach ($schemas as $k => $item) {
-			$schemas[$k] = '"' . str_replace(array('"', "'", ';'), '', $item) . '"';
-		}
-		$path = implode(', ', $schemas);
-		$this->exec('SET search_path TO ' . $path);
-	}
-
-}
diff --git a/framework/yii/db/pgsql/Schema.php b/framework/yii/db/pgsql/Schema.php
index 97a3ef4..80a7e33 100644
--- a/framework/yii/db/pgsql/Schema.php
+++ b/framework/yii/db/pgsql/Schema.php
@@ -22,11 +22,10 @@ class Schema extends \yii\db\Schema
 {
 
 	/**
-	 * The default schema used for the current session. This value is 
-	 * automatically set to "public" by the PDO driver. 
+	 * The default schema used for the current session.
 	 * @var string 
 	 */
-	public static $DEFAULT_SCHEMA;
+	public $defaultSchema = 'public';
 
 	/**
 	 * @var array mapping from physical column types (keys) to abstract 
@@ -95,10 +94,10 @@ class Schema extends \yii\db\Schema
 			$table->name = $parts[0];
 		}
 		if ($table->schemaName === null) {
-			$table->schemaName = self::$DEFAULT_SCHEMA;
+			$table->schemaName = $this->defaultSchema;
 		}
 	}
-
+	
 	/**
 	 * Quotes a table name for use in a query.
 	 * A simple table name has no schema prefix.
@@ -122,7 +121,7 @@ class Schema extends \yii\db\Schema
 			return $table;
 		}
 	}
-
+	
 	/**
 	 * Collects the foreign key column details for the given table.
 	 * @param TableSchema $table the table metadata
@@ -131,7 +130,6 @@ class Schema extends \yii\db\Schema
 
 		$tableName = $this->quoteValue($table->name);
 		$tableSchema = $this->quoteValue($table->schemaName);
-		$database = $this->quoteValue($this->db->pdo->getCurrentDatabase());
 
 		//We need to extract the constraints de hard way since:
 		//http://www.postgresql.org/message-id/26677.1086673982@sss.pgh.pa.us
@@ -158,7 +156,6 @@ where
 	ct.contype='f'
 	and c.relname={$tableName}
 	and ns.nspname={$tableSchema}
-	and current_database() = {$database}	
 SQL;
 
 		try {
@@ -184,7 +181,6 @@ SQL;
 	 * @return boolean whether the table exists in the database
 	 */
 	protected function findColumns($table) {
-		$dbname = $this->db->quoteValue($this->db->pdo->getCurrentDatabase());
 		$tableName = $this->db->quoteValue($table->name);
 		$schemaName = $this->db->quoteValue($table->schemaName);
 		$sql = <<<SQL
@@ -239,7 +235,6 @@ WHERE
 	a.attnum > 0
 	and c.relname = {$tableName}
 	and d.nspname = {$schemaName}
-	and current_database() = {$dbname}
 ORDER BY
 	a.attnum;
 SQL;

From d07fd39f7ee2fefa2164348eaa8e15339bcdf3ab Mon Sep 17 00:00:00 2001
From: gevik <gevikb@gmail.com>
Date: Fri, 7 Jun 2013 22:54:04 +0200
Subject: [PATCH 15/17] Removed false exception catching.

---
 framework/yii/db/pgsql/Schema.php | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/framework/yii/db/pgsql/Schema.php b/framework/yii/db/pgsql/Schema.php
index 80a7e33..50d01aa 100644
--- a/framework/yii/db/pgsql/Schema.php
+++ b/framework/yii/db/pgsql/Schema.php
@@ -97,7 +97,7 @@ class Schema extends \yii\db\Schema
 			$table->schemaName = $this->defaultSchema;
 		}
 	}
-	
+
 	/**
 	 * Quotes a table name for use in a query.
 	 * A simple table name has no schema prefix.
@@ -121,7 +121,7 @@ class Schema extends \yii\db\Schema
 			return $table;
 		}
 	}
-	
+
 	/**
 	 * Collects the foreign key column details for the given table.
 	 * @param TableSchema $table the table metadata
@@ -158,11 +158,7 @@ where
 	and ns.nspname={$tableSchema}
 SQL;
 
-		try {
-			$constraints = $this->db->createCommand($sql)->queryAll();
-		} catch (\Exception $e) {
-			return false;
-		}
+		$constraints = $this->db->createCommand($sql)->queryAll();
 		foreach ($constraints as $constraint) {
 			$columns = explode(',', $constraint['columns']);
 			$fcolumns = explode(',', $constraint['foreign_columns']);
@@ -172,7 +168,6 @@ SQL;
 			}
 			$table->foreignKeys[] = $citem;
 		}
-		return true;
 	}
 
 	/**

From b6d5a9002b96f36b627164217f9a9c7d7120563d Mon Sep 17 00:00:00 2001
From: gevik <gevikb@gmail.com>
Date: Fri, 7 Jun 2013 23:01:01 +0200
Subject: [PATCH 16/17] Removed the config setting that should not have been
 commited.

---
 tests/unit/data/config.php | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tests/unit/data/config.php b/tests/unit/data/config.php
index 1b40513..036624b 100644
--- a/tests/unit/data/config.php
+++ b/tests/unit/data/config.php
@@ -22,9 +22,6 @@ return array(
 			'dsn' => 'pgsql:host=localhost;dbname=yiitest;port=5432;',
 			'username' => 'postgres',
 			'password' => 'postgres',
-			'attributes'  => array(
-				'search_path' => 'master,hello'
-			),
 			'fixture' => __DIR__ . '/postgres.sql',
 		)
     )

From cf1e12ad118a2a322e2cbc9a845955791af136c7 Mon Sep 17 00:00:00 2001
From: Qiang Xue <qiang.xue@gmail.com>
Date: Sat, 8 Jun 2013 12:37:39 -0400
Subject: [PATCH 17/17] Fixes issue #514.

---
 framework/yii/db/pgsql/Schema.php | 114 ++++++++++++++++++++------------------
 1 file changed, 61 insertions(+), 53 deletions(-)

diff --git a/framework/yii/db/pgsql/Schema.php b/framework/yii/db/pgsql/Schema.php
index 50d01aa..bec1803 100644
--- a/framework/yii/db/pgsql/Schema.php
+++ b/framework/yii/db/pgsql/Schema.php
@@ -12,7 +12,7 @@ use yii\db\TableSchema;
 use yii\db\ColumnSchema;
 
 /**
- * Schema is the class for retrieving metadata from a PostgreSQL database 
+ * Schema is the class for retrieving metadata from a PostgreSQL database
  * (version 9.x and above).
  *
  * @author Gevik Babakhani <gevikb@gmail.com>
@@ -23,60 +23,61 @@ class Schema extends \yii\db\Schema
 
 	/**
 	 * The default schema used for the current session.
-	 * @var string 
+	 * @var string
 	 */
 	public $defaultSchema = 'public';
 
 	/**
-	 * @var array mapping from physical column types (keys) to abstract 
+	 * @var array mapping from physical column types (keys) to abstract
 	 * column types (values)
 	 */
 	public $typeMap = array(
-	    'abstime' => self::TYPE_TIMESTAMP,
-	    'bit' => self::TYPE_STRING,
-	    'boolean' => self::TYPE_BOOLEAN,
-	    'box' => self::TYPE_STRING,
-	    'character' => self::TYPE_STRING,
-	    'bytea' => self::TYPE_BINARY,
-	    'char' => self::TYPE_STRING,
-	    'cidr' => self::TYPE_STRING,
-	    'circle' => self::TYPE_STRING,
-	    'date' => self::TYPE_DATE,
-	    'real' => self::TYPE_FLOAT,
-	    'double precision' => self::TYPE_DECIMAL,
-	    'inet' => self::TYPE_STRING,
-	    'smallint' => self::TYPE_SMALLINT,
-	    'integer' => self::TYPE_INTEGER,
-	    'bigint' => self::TYPE_BIGINT,
-	    'interval' => self::TYPE_STRING,
-	    'json' => self::TYPE_STRING,
-	    'line' => self::TYPE_STRING,
-	    'macaddr' => self::TYPE_STRING,
-	    'money' => self::TYPE_MONEY,
-	    'name' => self::TYPE_STRING,
-	    'numeric' => self::TYPE_STRING,
-	    'numrange' => self::TYPE_DECIMAL,
-	    'oid' => self::TYPE_BIGINT, // should not be used. it's pg internal!
-	    'path' => self::TYPE_STRING,
-	    'point' => self::TYPE_STRING,
-	    'polygon' => self::TYPE_STRING,
-	    'text' => self::TYPE_TEXT,
-	    'time without time zone' => self::TYPE_TIME,
-	    'timestamp without time zone' => self::TYPE_TIMESTAMP,
-	    'timestamp with time zone' => self::TYPE_TIMESTAMP,
-	    'time with time zone' => self::TYPE_TIMESTAMP,
-	    'unknown' => self::TYPE_STRING,
-	    'uuid' => self::TYPE_STRING,
-	    'bit varying' => self::TYPE_STRING,
-	    'character varying' => self::TYPE_STRING,
-	    'xml' => self::TYPE_STRING
+		'abstime' => self::TYPE_TIMESTAMP,
+		'bit' => self::TYPE_STRING,
+		'boolean' => self::TYPE_BOOLEAN,
+		'box' => self::TYPE_STRING,
+		'character' => self::TYPE_STRING,
+		'bytea' => self::TYPE_BINARY,
+		'char' => self::TYPE_STRING,
+		'cidr' => self::TYPE_STRING,
+		'circle' => self::TYPE_STRING,
+		'date' => self::TYPE_DATE,
+		'real' => self::TYPE_FLOAT,
+		'double precision' => self::TYPE_DECIMAL,
+		'inet' => self::TYPE_STRING,
+		'smallint' => self::TYPE_SMALLINT,
+		'integer' => self::TYPE_INTEGER,
+		'bigint' => self::TYPE_BIGINT,
+		'interval' => self::TYPE_STRING,
+		'json' => self::TYPE_STRING,
+		'line' => self::TYPE_STRING,
+		'macaddr' => self::TYPE_STRING,
+		'money' => self::TYPE_MONEY,
+		'name' => self::TYPE_STRING,
+		'numeric' => self::TYPE_STRING,
+		'numrange' => self::TYPE_DECIMAL,
+		'oid' => self::TYPE_BIGINT, // should not be used. it's pg internal!
+		'path' => self::TYPE_STRING,
+		'point' => self::TYPE_STRING,
+		'polygon' => self::TYPE_STRING,
+		'text' => self::TYPE_TEXT,
+		'time without time zone' => self::TYPE_TIME,
+		'timestamp without time zone' => self::TYPE_TIMESTAMP,
+		'timestamp with time zone' => self::TYPE_TIMESTAMP,
+		'time with time zone' => self::TYPE_TIMESTAMP,
+		'unknown' => self::TYPE_STRING,
+		'uuid' => self::TYPE_STRING,
+		'bit varying' => self::TYPE_STRING,
+		'character varying' => self::TYPE_STRING,
+		'xml' => self::TYPE_STRING
 	);
 
 	/**
 	 * Creates a query builder for the MySQL database.
 	 * @return QueryBuilder query builder instance
 	 */
-	public function createQueryBuilder() {
+	public function createQueryBuilder()
+	{
 		return new QueryBuilder($this->db);
 	}
 
@@ -85,7 +86,8 @@ class Schema extends \yii\db\Schema
 	 * @param TableSchema $table the table metadata object
 	 * @param string $name the table name
 	 */
-	protected function resolveTableNames($table, $name) {
+	protected function resolveTableNames($table, $name)
+	{
 		$parts = explode('.', str_replace('"', '', $name));
 		if (isset($parts[1])) {
 			$table->schemaName = $parts[0];
@@ -104,7 +106,8 @@ class Schema extends \yii\db\Schema
 	 * @param string $name table name
 	 * @return string the properly quoted table name
 	 */
-	public function quoteSimpleTableName($name) {
+	public function quoteSimpleTableName($name)
+	{
 		return strpos($name, '"') !== false ? $name : '"' . $name . '"';
 	}
 
@@ -113,12 +116,15 @@ class Schema extends \yii\db\Schema
 	 * @param string $name table name
 	 * @return TableSchema|null driver dependent table metadata. Null if the table does not exist.
 	 */
-	public function loadTableSchema($name) {
+	public function loadTableSchema($name)
+	{
 		$table = new TableSchema();
 		$this->resolveTableNames($table, $name);
 		if ($this->findColumns($table)) {
 			$this->findConstraints($table);
 			return $table;
+		} else {
+			return null;
 		}
 	}
 
@@ -126,7 +132,8 @@ class Schema extends \yii\db\Schema
 	 * Collects the foreign key column details for the given table.
 	 * @param TableSchema $table the table metadata
 	 */
-	protected function findConstraints($table) {
+	protected function findConstraints($table)
+	{
 
 		$tableName = $this->quoteValue($table->name);
 		$tableSchema = $this->quoteValue($table->schemaName);
@@ -175,7 +182,8 @@ SQL;
 	 * @param TableSchema $table the table metadata
 	 * @return boolean whether the table exists in the database
 	 */
-	protected function findColumns($table) {
+	protected function findColumns($table)
+	{
 		$tableName = $this->db->quoteValue($table->name);
 		$schemaName = $this->db->quoteValue($table->schemaName);
 		$sql = <<<SQL
@@ -234,11 +242,11 @@ ORDER BY
 	a.attnum;
 SQL;
 
-		try {
-			$columns = $this->db->createCommand($sql)->queryAll();
-		} catch (\Exception $e) {
+		$columns = $this->db->createCommand($sql)->queryAll();
+		if (empty($columns)) {
 			return false;
 		}
+
 		foreach ($columns as $column) {
 			$column = $this->loadColumnSchema($column);
 			$table->columns[$column->name] = $column;
@@ -257,7 +265,8 @@ SQL;
 	 * @param array $info column information
 	 * @return ColumnSchema the column schema object
 	 */
-	protected function loadColumnSchema($info) {
+	protected function loadColumnSchema($info)
+	{
 		$column = new ColumnSchema();
 		$column->allowNull = $info['is_nullable'];
 		$column->autoIncrement = $info['is_autoinc'];
@@ -280,5 +289,4 @@ SQL;
 		$column->phpType = $this->getColumnPhpType($column);
 		return $column;
 	}
-
-}
\ No newline at end of file
+}