Yii:按条件排序

Question

我使用CActiveDataprovider来显示来自不同表的数据.现在我遇到了问题.我有两个表(项目和类别),他们都有priority_order列,我需要使用两个列的顺序显示数据.

例如:属于这些类别的有两个类别和六个项目:

• 食物(priority_order 1)
  1. food_item1(priority_order 1)
  2. fodd_item2(priority_order 2)
  3. fodd_item3(priority_order 3)
• 喝(priority_order 2)
  1. drink_item1(priority_order 1)
  2. drink_item2(priority_order 2)
  3. drink_item3(priority_order 3)

现在我需要完全按照上面的顺序显示CGridView中的数据.所有食品都将首先出现,并按优先顺序排序,饮品将在稍后出现; 显然在他们的顺序.

在ItemsController我尝试下面的代码(现在只按类别排序)

$dataProvider = new CActiveDataProvider('Items', array(
                'criteria' => array(
                    'with' => array('category'),
                    'condition' => 'user_id=' . Yii::app()->user->id,
                    //'order' => 't.priority_order ASC',
                    'order' => 'category.priority_order ASC',
                ),
      ));

如果仍然不够清楚,我很乐意提供更多细节.任何帮助,将不胜感激.

Answer 1

$dataProvider = new CActiveDataProvider('Items', array(
            'criteria' => array(
                'with' => array('category'),
                'condition' => 'user_id=' . Yii::app()->user->id,
                'order' => 'category.priority_order ASC, t.priority_order ASC',
            ),
  ));

给订单标准第二个参数应该有效