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<?php
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/**
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* Application class file.
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*
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* @link http://www.yiiframework.com/
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* @copyright Copyright © 2008-2012 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\base;
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use yii\base\Exception;
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/**
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* Application is the base class for all application classes.
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*
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* An application serves as the global context that the user request
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* is being processed. It manages a set of application components that
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* provide specific functionalities to the whole application.
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*
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* The core application components provided by Application are the following:
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* <ul>
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* <li>{@link getErrorHandler errorHandler}: handles PHP errors and
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* uncaught exceptions. This application component is dynamically loaded when needed.</li>
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* <li>{@link getSecurityManager securityManager}: provides security-related
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* services, such as hashing, encryption. This application component is dynamically
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* loaded when needed.</li>
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* <li>{@link getStatePersister statePersister}: provides global state
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* persistence method. This application component is dynamically loaded when needed.</li>
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* <li>{@link getCache cache}: provides caching feature. This application component is
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* disabled by default.</li>
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* <li>{@link getMessages messages}: provides the message source for translating
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* application messages. This application component is dynamically loaded when needed.</li>
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* <li>{@link getCoreMessages coreMessages}: provides the message source for translating
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* Yii framework messages. This application component is dynamically loaded when needed.</li>
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* </ul>
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*
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* Application will undergo the following lifecycles when processing a user request:
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* <ol>
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* <li>load application configuration;</li>
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* <li>set up class autoloader and error handling;</li>
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* <li>load static application components;</li>
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* <li>{@link beforeRequest}: preprocess the user request; `beforeRequest` event raised.</li>
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* <li>{@link processRequest}: process the user request;</li>
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* <li>{@link afterRequest}: postprocess the user request; `afterRequest` event raised.</li>
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* </ol>
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*
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* Starting from lifecycle 3, if a PHP error or an uncaught exception occurs,
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* the application will switch to its error handling logic and jump to step 6 afterwards.
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*
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* @property string $basePath Returns the root path of the application.
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* @property CCache $cache Returns the cache component.
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* @property CPhpMessageSource $coreMessages Returns the core message translations.
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* @property CDateFormatter $dateFormatter Returns the locale-dependent date formatter.
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* @property \yii\db\dao\Connection $db Returns the database connection component.
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* @property CErrorHandler $errorHandler Returns the error handler component.
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* @property string $extensionPath Returns the root directory that holds all third-party extensions.
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* @property string $id Returns the unique identifier for the application.
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* @property string $language Returns the language that the user is using and the application should be targeted to.
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* @property CLocale $locale Returns the locale instance.
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* @property string $localeDataPath Returns the directory that contains the locale data.
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* @property CMessageSource $messages Returns the application message translations component.
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* @property CNumberFormatter $numberFormatter The locale-dependent number formatter.
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* @property CHttpRequest $request Returns the request component.
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* @property string $runtimePath Returns the directory that stores runtime files.
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* @property CSecurityManager $securityManager Returns the security manager component.
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* @property CStatePersister $statePersister Returns the state persister component.
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* @property string $timeZone Returns the time zone used by this application.
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* @property UrlManager $urlManager Returns the URL manager component.
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* @property string $baseUrl Returns the relative URL for the application
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* @property string $homeUrl the homepage URL
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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class Application extends Module
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{
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/**
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* @var string the application name. Defaults to 'My Application'.
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*/
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public $name = 'My Application';
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/**
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* @var string the version of this application. Defaults to '1.0'.
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*/
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public $version = '1.0';
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/**
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* @var string the charset currently used for the application. Defaults to 'UTF-8'.
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*/
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public $charset = 'UTF-8';
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/**
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* @var string the language that the application is written in. This mainly refers to
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* the language that the messages and view files are in. Defaults to 'en_us' (US English).
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* @see language
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*/
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public $sourceLanguage = 'en_us';
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/**
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* @var array IDs of application components that need to be loaded when the application starts.
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* The default value is `array('errorHandler')`, which loads the [[errorHandler]] component
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* to ensure errors and exceptions can be handled nicely.
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*/
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public $preload = array('errorHandler');
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/**
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* @var Controller the currently active controller instance
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*/
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public $controller;
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/**
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* @var mixed the layout that should be applied for views in this application. Defaults to 'main'.
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* If this is false, layout will be disabled.
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*/
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public $layout = 'main';
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// todo
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public $localeDataPath = '@yii/i18n/data';
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private $_runtimePath;
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private $_ended = false;
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private $_language;
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/**
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* Constructor.
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* @param string $id the ID of this application. The ID should uniquely identify the application from others.
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* @param string $basePath the base path of this application. This should point to
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* the directory containing all application logic, template and data.
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* @param array $config name-value pairs that will be used to initialize the object properties
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*/
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public function __construct($id, $basePath, $config = array())
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{
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\Yii::$application = $this;
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$this->id = $id;
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$this->setBasePath($basePath);
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$this->registerDefaultAliases();
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$this->registerCoreComponents();
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parent::__construct($id, $this, $config);
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}
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/**
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* Initializes the application by loading components declared in [[preload]].
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* If you override this method, make sure the parent implementation is invoked.
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*/
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public function init()
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{
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$this->preloadComponents();
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}
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/**
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* Terminates the application.
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* This method replaces PHP's exit() function by calling [[afterRequest()]] before exiting.
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* @param integer $status exit status (value 0 means normal exit while other values mean abnormal exit).
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* @param boolean $exit whether to exit the current request.
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* It defaults to true, meaning the PHP's exit() function will be called at the end of this method.
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*/
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public function end($status = 0, $exit = true)
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{
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if (!$this->_ended) {
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$this->_ended = true;
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$this->afterRequest();
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}
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if ($exit) {
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exit($status);
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}
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}
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/**
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* Runs the application.
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* This is the main entrance of an application.
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* @return integer the exit status (0 means normal, non-zero values mean abnormal)
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*/
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public function run()
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{
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$this->beforeRequest();
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$status = $this->processRequest();
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$this->afterRequest();
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return $status;
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}
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/**
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* Raises the [[beforeRequest]] event right BEFORE the application processes the request.
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*/
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public function beforeRequest()
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{
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$this->trigger('beforeRequest');
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}
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/**
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* Raises the [[afterRequest]] event right AFTER the application processes the request.
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*/
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public function afterRequest()
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{
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$this->trigger('afterRequest');
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}
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/**
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* Processes the request.
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* Child classes should override this method with actual request processing logic.
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* @return integer the exit status of the controller action (0 means normal, non-zero values mean abnormal)
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*/
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public function processRequest()
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{
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return 0;
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}
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/**
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* Runs a controller with the given route and parameters.
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* @param string $route the route (e.g. `post/create`)
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* @param array $params the parameters to be passed to the controller action
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* @return integer the exit status (0 means normal, non-zero values mean abnormal)
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* @throws BadRequestException if the route cannot be resolved into a controller
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*/
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public function runController($route, $params = array())
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{
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$result = $this->createController($route);
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if ($result === false) {
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throw new BadRequestException(\Yii::t('yii', 'Unable to resolve the request.'));
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}
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/** @var $controller Controller */
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list($controller, $action) = $result;
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$priorController = $this->controller;
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$this->controller = $controller;
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$status = $controller->run($action, $params);
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$this->controller = $priorController;
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return $status;
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}
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/**
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* Returns the directory that stores runtime files.
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* @return string the directory that stores runtime files. Defaults to 'protected/runtime'.
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*/
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public function getRuntimePath()
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{
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if ($this->_runtimePath !== null) {
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$this->setRuntimePath($this->getBasePath() . DIRECTORY_SEPARATOR . 'runtime');
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}
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return $this->_runtimePath;
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}
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/**
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* Sets the directory that stores runtime files.
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* @param string $path the directory that stores runtime files.
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* @throws BadParamException if the directory does not exist or is not writable
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*/
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public function setRuntimePath($path)
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{
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$p = \Yii::getAlias($path);
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if ($p === false || !is_dir($p) || !is_writable($path)) {
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throw new BadParamException("Application runtime path \"$path\" is invalid. Please make sure it is a directory writable by the Web server process.");
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} else {
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$this->_runtimePath = $p;
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}
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}
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/**
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* Returns the language that the end user is using.
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* @return string the language that the user is using (e.g. 'en_US', 'zh_CN').
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* Defaults to the value of [[sourceLanguage]].
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*/
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public function getLanguage()
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{
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return $this->_language === null ? $this->sourceLanguage : $this->_language;
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}
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/**
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* Specifies which language the end user is using.
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* This is the language that the application should use to display to end users.
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* By default, [[language]] and [[sourceLanguage]] are the same.
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* Do not set this property unless your application needs to support multiple languages.
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* @param string $language the user language (e.g. 'en_US', 'zh_CN').
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* If it is null, the [[sourceLanguage]] will be used.
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*/
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public function setLanguage($language)
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{
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$this->_language = $language;
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}
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/**
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* Returns the time zone used by this application.
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* This is a simple wrapper of PHP function date_default_timezone_get().
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* @return string the time zone used by this application.
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* @see http://php.net/manual/en/function.date-default-timezone-get.php
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*/
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public function getTimeZone()
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{
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return date_default_timezone_get();
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}
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/**
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* Sets the time zone used by this application.
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* This is a simple wrapper of PHP function date_default_timezone_set().
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* @param string $value the time zone used by this application.
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* @see http://php.net/manual/en/function.date-default-timezone-set.php
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*/
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public function setTimeZone($value)
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{
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date_default_timezone_set($value);
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}
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/**
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* Returns the locale instance.
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* @param string $localeID the locale ID (e.g. en_US). If null, the {@link getLanguage application language ID} will be used.
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* @return CLocale the locale instance
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*/
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public function getLocale($localeID = null)
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{
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return CLocale::getInstance($localeID === null ? $this->getLanguage() : $localeID);
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}
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/**
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* @return CNumberFormatter the locale-dependent number formatter.
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* The current {@link getLocale application locale} will be used.
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*/
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public function getNumberFormatter()
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{
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return $this->getLocale()->getNumberFormatter();
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}
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/**
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* Returns the locale-dependent date formatter.
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* @return CDateFormatter the locale-dependent date formatter.
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* The current {@link getLocale application locale} will be used.
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*/
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public function getDateFormatter()
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{
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return $this->getLocale()->getDateFormatter();
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}
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/**
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* Returns the database connection component.
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* @return \yii\db\dao\Connection the database connection
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*/
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public function getDb()
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{
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return $this->getComponent('db');
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}
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/**
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* Returns the error handler component.
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* @return ErrorHandler the error handler application component.
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*/
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public function getErrorHandler()
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{
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return $this->getComponent('errorHandler');
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}
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/**
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* Returns the application theme.
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* @return Theme the theme that this application is currently using.
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*/
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public function getTheme()
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{
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return $this->getComponent('theme');
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}
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/**
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* Returns the security manager component.
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* @return SecurityManager the security manager application component.
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*/
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public function getSecurityManager()
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{
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return $this->getComponent('securityManager');
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}
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/**
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* Returns the cache component.
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* @return \yii\caching\Cache the cache application component. Null if the component is not enabled.
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*/
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public function getCache()
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{
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return $this->getComponent('cache');
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}
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/**
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* Returns the core message translations component.
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* @return \yii\i18n\MessageSource the core message translations
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*/
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public function getCoreMessages()
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{
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return $this->getComponent('coreMessages');
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}
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/**
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* Returns the application message translations component.
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* @return \yii\i18n\MessageSource the application message translations
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|
*/
|
|
|
|
public function getMessages()
|
|
|
|
{
|
|
|
|
return $this->getComponent('messages');
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the request component.
|
|
|
|
* @return Request the request component
|
|
|
|
*/
|
|
|
|
public function getRequest()
|
|
|
|
{
|
|
|
|
return $this->getComponent('request');
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Sets default path aliases.
|
|
|
|
*/
|
|
|
|
public function registerDefaultAliases()
|
|
|
|
{
|
|
|
|
\Yii::$aliases['@application'] = $this->getBasePath();
|
|
|
|
\Yii::$aliases['@entry'] = dirname($_SERVER['SCRIPT_FILENAME']);
|
|
|
|
\Yii::$aliases['@www'] = '';
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Registers the core application components.
|
|
|
|
* @see setComponents
|
|
|
|
*/
|
|
|
|
public function registerCoreComponents()
|
|
|
|
{
|
|
|
|
$this->setComponents(array(
|
|
|
|
'errorHandler' => array(
|
|
|
|
'class' => 'yii\base\ErrorHandler',
|
|
|
|
),
|
|
|
|
'request' => array(
|
|
|
|
'class' => 'yii\base\Request',
|
|
|
|
),
|
|
|
|
'response' => array(
|
|
|
|
'class' => 'yii\base\Response',
|
|
|
|
),
|
|
|
|
'format' => array(
|
|
|
|
'class' => 'yii\base\Formatter',
|
|
|
|
),
|
|
|
|
'coreMessages' => array(
|
|
|
|
'class' => 'yii\i18n\PhpMessageSource',
|
|
|
|
'language' => 'en_us',
|
|
|
|
'basePath' => '@yii/messages',
|
|
|
|
),
|
|
|
|
'messages' => array(
|
|
|
|
'class' => 'yii\i18n\PhpMessageSource',
|
|
|
|
),
|
|
|
|
'securityManager' => array(
|
|
|
|
'class' => 'yii\base\SecurityManager',
|
|
|
|
),
|
|
|
|
'urlManager' => array(
|
|
|
|
'class' => 'yii\web\UrlManager',
|
|
|
|
),
|
|
|
|
));
|
|
|
|
}
|
|
|
|
}
|