Yii：在CGridView中顯示第二個數據庫內容

Question

我正在使用Yii-1.1.13。我有兩個數據庫，我已經在protected/config/main.php配置如下。

'db2'=>array(
    'class' => 'CDbConnection' , 
    'connectionString' => 'pgsql:host=localhost;port=5432;dbname=database2', 
    'emulatePrepare' => true, 
    'username' => 'zzzzz', 
    'password' => 'zzzzz', 
    'charset' => 'utf8', 
), 

    'db'=>array(
    'connectionString' => 'pgsql:host=localhost;port=5432;dbname=database1', 
    'emulatePrepare' => true, 
    'username' => 'xxxxx', 
    'password' => 'xxxxx', 
    'charset' => 'utf8', 
), 

我用下面的代碼，以顯示Yii CGridView計數，其工作的罰款。這將連接數據庫1。

模式

<?  
public function search() 
{  
$criteria=new CDbCriteria; 
$criteria->select='std_id ,count(*) as counts'; 
$criteria->condition = "sdate between '$this->startdate' and '$this->enddate'"; 
$criteria->group ='std_id'; 
return new CActiveDataProvider($this, array( 
    'criteria'=>$criteria,  
    'pagination' => array('pageSize' => 30), 
    ));       
}  
?> 

視圖

<?php $this->widget('zii.widgets.grid.CGridView', array(
    'id'=>'std_id-grid', 
    'dataProvider'=>$model->search(), 
    'columns'=>array( 
    'std_id',     
    'counts',     
    ),       

    )); ?>    

---

在另一種模式，我有下面的代碼來顯示用戶的詳細信息，將與DATABASE2連接。它不工作，那裏有什麼不對。我嘗試過兩種不同的方式。 請參閱下面的Type-1和Type-2。

我已經通過this鏈接來連接Yii中的多個數據庫。

模式

<? 


     class Usr extends SecDB 
    { 
    ... 
    .. 
      public function getDbConnection() 
      { 
       return self::getSecDbConnection(); 
     //We need to override this method in the models representing the 
    //advertising database to return the second DB connection. 
     } 


    public function search() 
    { 

    // Type -1 Not working 
    /*$row = Yii::app()->db2->createCommand(array(
     'select' => array('id', 'name', 'date_created'), 
     'from' => 'accounts', 
     'where' => "type = 'USERS'", 
     ))->queryAll(); 

    return new CActiveDataProvider($this, array(
     'criteria'=>$row, 
     )); 
    */ 

    // Type -2 Not working 

    $criteria=new CDbCriteria; 
    $criteria->select='id,name,date_created'; 
    $criteria->condition = "type = 'USERS'"; 
    return new CActiveDataProvider($this, array(
     'criteria'=>$criteria, 


)); 
    } 

?> 
} 

視圖

<?php $this->widget('zii.widgets.grid.CGridView', array(
    'id'=>'users-grid', 
    'dataProvider'=>$model->search(), 
    'columns'=>array(
    'id', 
    'name', 
    'date_created' 
    ), 

    )); ?> 

我overwite數據庫連接。但它不工作，沒有什麼是在瀏覽器中。 感謝Advanse。

---

我在保護/組件SecDB.php/SecDB.php

<?php 

class SecDB extends CActiveRecord { 
    private static $db2 = null; 

    public static function getSecDbConnection() 
    { 
     if (self::$db2 !== null){ 
      return self::$db2; 
     }else 
{  
      self::$dbcc = Yii::app()->db2; 
      if (self::$db2 instanceof CDbConnection) 
      { 
       self::$db2->setActive(true); 
       return self::$db2; 
      } 
      else 
       throw new CDbException(Yii::t('yii','Active Record requires a "db2" CDbConnection application component.')); 
     } 
    } 

} 

?> 

Answer 1

同比需要在模型

public function getDbConnection() 
    { 
     if (self::$conection !== null) 
      return self::$conection; 
     else 
     { 
      self::$conection = Yii::app()->db2; 
      if (self::$conection instanceof CDbConnection) 
      { 
       self::$conection->setActive(true); 
       return self::$conection; 
      } 
      else 
       throw new CDbException(Yii::t('yii','Active Record requires a "db2" CDbConnection application component.')); 
     } 
    } 

用於開發模式改寫getDBConnection（），在網頁/ index.php文件加

defined('YII_DEBUG') or define('YII_DEBUG',true); 

編輯：

<?php 

class SecDB extends CActiveRecord { 
    private static $db2; 

    public function getDbConnection() 
    { 
     if (self::$db2 !== null){ 
      return self::$db2; 
     }else 
{  
      self::$db2 = Yii::app()->db2; 
      if (self::$db2 instanceof CDbConnection) 
      { 
       self::$db2->setActive(true); 
       return self::$db2; 
      } 
      else 
       throw new CDbException(Yii::t('yii','Active Record requires a "db2" CDbConnection application component.')); 
     } 
    } 

} 

?>