如何在Yii中使用union 2創建查詢？

Question

有一張桌子「公寓」。這裏需要在Yii中創建一個查詢。怎麼做？

SQL查詢：

SELECT * 
FROM {{apartments}} 
WHERE agent_id = 4 
UNION 
SELECT * 
FROM {{apartments}} 
WHERE agent_id != 4 

在我cintroller

$arrSql[] = 'SELECT * FROM {{apartments}} WHERE agent_id=:agent_id'; 
$arrSql[] = 'SELECT * FROM {{apartments}} WHERE agent_id!=:agent_id'; 
$data = Apartments::model()->findAllBySql(implode(' UNION ', $arrSql), array(
    ':agent_id' => Yii::app()->user->id, 
    ':status' => Apartments::STATUS_REMOVED 
)); 

$dataProvider = new CArrayDataProvider($data); 

但不工作分頁和過濾在我的窗口小部件CGridList。

Answer 1

我所知，您可以使用CDbCommand這樣的：

$apartments2 = Yii::app()->db->createCommand() 
    ->select("*") 
    ->from('apartments') 
    ->where('agent_id!=:agent_id', array(':agent_id'=>4)) 
    ->getText(); 

$apartments = Yii::app()->db->createCommand() 
    ->select("*") 
    ->from('apartments') 
    ->where('agent_id=:agent_id', array(':agent_id'=>4)) 
    ->union($apartments2) 
    ->queryRow(); 

你可以找到你的結果在$apartments作爲一個數組。

編輯：

，如果你想使用CActiveDataProvider，你需要使用CSqlDataProvider：

$sql='SELECT * 
FROM {{apartments}} 
WHERE agent_id = 4 
UNION 
SELECT * 
FROM {{apartments}} 
WHERE agent_id != 4'; 

$dataProvider=new CSqlDataProvider($sql, array(
    'totalItemCount'=>$count, 
    'sort'=>array(
     'attributes'=>array(
      'agent_id', //and all other atributes with withc you want to sort 
     ), 
    ), 
    'pagination'=>array(
     'pageSize'=>10, 
    ), 
)); 

Answer 2

它非常簡單

(SELECT * 
    FROM {{apartments}} 
    WHERE `agent_id` = '4') 
UNION ALL 
    (SELECT * 
    FROM {{apartments}} 
    WHERE `agent_id` <> '4') 

讓我知道這是否爲你工作..