added UserException.

framework/base/Application.php

@@ -464,7 +464,7 @@ class Application extends Module
 	 */
 	public function renderException($exception)
 	{
-		if ($exception instanceof Exception && ($exception->causedByUser || !YII_DEBUG)) {
+		if ($exception instanceof Exception && ($exception instanceof UserException || !YII_DEBUG)) {
 			$message = $exception->getName() . ': ' . $exception->getMessage();
 		} else {
 			$message = YII_DEBUG ? (string)$exception : 'Error: ' . $exception->getMessage();

framework/base/ErrorHandler.php

@@ -81,7 +81,7 @@ class ErrorHandler extends Component
 				\Yii::$application->renderException($exception);
 			} else {
 				$view = new View($this);
-				if (!YII_DEBUG || $exception instanceof Exception && $exception->causedByUser) {
+				if (!YII_DEBUG || $exception instanceof UserException) {
 					$viewName = $this->errorView;
 				} else {
 					$viewName = $this->exceptionView;
@@ -256,7 +256,7 @@ class ErrorHandler extends Component
 	public function renderAsHtml($exception)
 	{
 		$view = new View($this);
-		if (!YII_DEBUG || $exception instanceof Exception && $exception->causedByUser) {
+		if (!YII_DEBUG || $exception instanceof UserException) {
 			$viewName = $this->errorView;
 		} else {
 			$viewName = $this->exceptionView;

framework/base/Exception.php

@@ -18,11 +18,6 @@ namespace yii\base;
 class Exception extends \Exception
 {
 	/**
-	 * @var boolean whether this exception is caused by end user's mistake (e.g. wrong URL)
-	 */
-	public $causedByUser = false;
-
-	/**
 	 * @return string the user-friendly name of this exception
 	 */
 	public function getName()

framework/base/HttpException.php

@@ -19,16 +19,12 @@ namespace yii\base;
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
-class HttpException extends Exception
+class HttpException extends UserException
 {
 	/**
 	 * @var integer HTTP status code, such as 403, 404, 500, etc.
 	 */
 	public $statusCode;
-	/**
-	 * @var boolean whether this exception is caused by end user's mistake (e.g. wrong URL)
-	 */
-	public $causedByUser = true;
 
 	/**
 	 * Constructor.

framework/base/InvalidRequestException.php

@@ -15,14 +15,9 @@ namespace yii\base;
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
-class InvalidRequestException extends \Exception
+class InvalidRequestException extends UserException
 {
 	/**
-	 * @var boolean whether this exception is caused by end user's mistake (e.g. wrong URL)
-	 */
-	public $causedByUser = true;
-
-	/**
 	 * @return string the user-friendly name of this exception
 	 */
 	public function getName()

framework/base/InvalidRouteException.php

@@ -15,14 +15,9 @@ namespace yii\base;
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
-class InvalidRouteException extends \Exception
+class InvalidRouteException extends UserException
 {
 	/**
-	 * @var boolean whether this exception is caused by end user's mistake (e.g. wrong URL)
-	 */
-	public $causedByUser = true;
-
-	/**
 	 * @return string the user-friendly name of this exception
 	 */
 	public function getName()

framework/base/UserException.php

@@ -0,0 +1,21 @@
+<?php
+/**
+ * UserException class file.
+ *
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright &copy; 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\base;
+
+/**
+ * UserException is the base class for exceptions that are meant to be shown to end users.
+ * Such exceptions are often caused by mistakes of end users.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class UserException extends Exception
+{
+}

framework/console/Application.php

@@ -126,8 +126,7 @@ class Application extends \yii\base\Application
 			'message' => 'yii\console\controllers\MessageController',
 			'help' => 'yii\console\controllers\HelpController',
 			'migrate' => 'yii\console\controllers\MigrateController',
-			'shell' => 'yii\console\controllers\ShellController',
+			'app' => 'yii\console\controllers\CreateController',
-			'create' => 'yii\console\controllers\CreateController',
 		);
 	}
 

framework/console/Exception.php

@@ -15,14 +15,9 @@ namespace yii\console;
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
-class Exception extends \yii\base\Exception
+class Exception extends \yii\base\UserException
 {
 	/**
-	 * @var boolean whether this exception is caused by end user's mistake (e.g. wrong URL)
-	 */
-	public $causedByUser = true;
-
-	/**
 	 * @return string the user-friendly name of this exception
 	 */
 	public function getName()

framework/console/controllers/HelpController.php

@@ -52,7 +52,7 @@ class HelpController extends Controller
 	 * @return integer the exit status
 	 * @throws Exception if the command for help is unknown
 	 */
-	public function actionIndex($command)
+	public function actionIndex($command = null)
 	{
 		if ($command !== null) {
 			$result = Yii::$application->createController($command);