yii模块下面的组件

模块的定义就不写了，直接进入主题看目录和文件：

application/modules/client/controllers/UserController.php

 <?php class UserController extends ClientController
 {
     public function init()
     {
         parent::init();
     }     public function actionIndex()
     {
         $userid = $this->user->userid;
         $test = $this->user->test;
         $test1 = $this->user->test();
         exit('xx');
     }

$this->user找不到，它会去ClientController中找

application/modules/client/components/ClientController.php

 <?php
 class ClientController extends CController
 {
     public function init()
     {
         header('Content-type:text/html;charset=utf-8');
         Yii::import('ext.functions', true); //加载公共函数
         //$this->getUserId();
     }
     public function __get($name)
     {
         return Yii::app()->client->$name;
     }

找到__get（$name）方法，返回的是全局的client组件

application/config/main.php

 <?php …… 'components'=>array(
             'client' => array(
                    'class' => 'application.modules.client.components.Client',
             ),
 ……
 ),

配置好client组件，然后指定到

application/modules/client/components/Client.php

 <?php use \Yii; class Client extends ApiComponent
 {     private static $_params;     private $_components;     private $_propertys;     private static $instance;     public function __construct()
     {
         self::$instance =& $this;
     }     public static function &getInstance()
     {
         return self::$instance;
     }     public function init()
     {     }     /**
      * 是否是组件
      *
      * @param string $id
      * @return bool
      */
     public function hasComponent($id)
     {
         return isset(self::$_coreComponents[$id]);
     }     /**
      * 获取组件
      * @param string $id
      */
     public function getComponent($id)
     {
         if (isset($this->_components[$id]))
         {
             return $this->_components[$id];
         }         if (isset(self::$_coreComponents[$id]))
         {
             $component = Yii::createComponent(self::$_coreComponents[$id]);
             $component->owner = $this;
             $component->init();
             $this->_components[$id] = $component;
             return $component;
         }
     }     /**
      *
      * @param integer $id
      */
     public function HasProperty($id)
     {
         return isset(self::$_propertysMap[$id]);
     }     /**
      * 获取属性
      * @param string $id
      */
     public function getProperty($id)
     {
         if (isset($this->_propertys[$id]))
         {
             return $this->_propertys[$id];
         }         if (isset(self::$_propertysMap[$id]))
         {
             list($component, $key) = explode('.', self::$_propertysMap[$id]);
             $this->_propertys[$id] = $this->$component->$key;
         }
         return $this->_propertys[$id];
     }     /**
      * 设置属性
      */
     public function setProperty($id, $value)
     {
         if (isset(self::$_propertysMap[$id]))
         {
             list($component, $key) = explode('.', self::$_propertysMap[$id]);
             $this->$component->$key = $value;
         }
     }     /**
      * 清除缓存
      * @param string $id
      */
     public function clearProperty($id)
     {
         unset($this->_propertys[$id]);
     }     /**
      * (non-PHPdoc)
      * @see company\components.CompanyComponent::__get()
      */
     public function __get($name)
     {
         //组件
         if ($this->hasComponent($name))
         {
             return $this->getComponent($name);
         }         //属性
         if ($this->HasProperty($name))
         {
             return $this->getProperty($name);
         }         return parent::__get($name);
     }     /**
      *
      * @param unknown_type $name
      * @param unknown_type $value
      */
     public function __set($name, $value)
     {
         //属性
         if ($this->HasProperty($name))
         {
             return $this->setProperty($name, $value);
         }         return parent::__set($name, $value);
     }     public function __call($name, $parameters)
     {
         return parent::__call($name, $parameters);
     }     private static $_coreComponents = array(
         'user' => array(
             'class' => 'application.modules.client.components.User'
         ),
     );     private static $_propertysMap = array(
         'userid'            => 'user.userid',
     ); }

可以从中看到定义好的user组件以及快捷获取user组件下面的userid属性

application/modules/client/components/user.php

 <?php class User extends ApiComponent
 {
     function getXzcoin()
     {     }     function getTest()
     {
         var_dump('safafaf');
         return '1';     }     function Test($name = 0){
         echo $name;         return 'test';
     }     function getUserid(){
         echo '222';
         return '2';
     }
 }

以及用到的application/modules/client/components/ApiComponent.php

 <?php use \CComponent; abstract class ApiComponent extends CComponent
 {     public $owner;     protected $_is;     protected $_g;     protected $_cacheGetter    = TRUE;     public function init()
     {     }     /**
      *
      * @param unknown_type $name
      */
     public function __get($name)
     {
         if (strncasecmp($name, 'is', 2) === 0 && method_exists($this, $name))
         {
             $name = strtolower($name);
             if ( ! isset($this->_is[$name]))
             {
                 $this->_is[$name] = $this->$name();
             }
             return $this->_is[$name];
         }         $getter = 'get' . ucfirst($name);         if (method_exists($this, $getter))
         {
             if ($this->_cacheGetter)
             {
                 if (isset($this->_g[$name]))
                 {
                     return $this->_g[$name];
                 }
                 $this->_g[$name] = $this->$getter();
                 return $this->_g[$name];
             }             return $this->$getter();
         }         return parent::__get($name);
     }     /**
      *
      * @throws \Exception
      */
     public function throwException($message, $code = 0)
     {
         throw new \Exception($message, $code);
     } }

完毕。