当我的列不在表和属性中时，如何使用zii.widgets.grid.CGridView进行搜索和排序 - How to i search and sort by use zii.widgets.grid.CGridView when my column there is not in table and attributes?

How to i search and sort by use zii.widgets.grid.CGridView when my column there is not in table and attributes?

我想显示我的属性列表（id、名称、价格、折扣）和不是属性的（total_price）列。

当我使用这个代码时，它显示了数据表，但我不能在（total_price）列中搜索或排序

有人能帮我吗？

<?php $this->widget('zii.widgets.grid.CGridView', array(
'id'=>'product-grid',
'dataProvider'=>$model->search(),
'filter'=>$model,
'columns'=>array(
    'id',
    'name',
    array(
            'header' =>'Price',
            'name'=>'price',
            'value'=>'$data->price',
    ),
    array(
            'header' =>'Discount',
            'name'=>'discount',
            'value'=>'$data->discount',
    ),
    array(
            'header' =>'total price',// total price doesn't save in Data Base
            'name'=>'total_price',
            'value'=>'total_price - (total_price * $data->discount/100)',
    ),
    array(
        'class'=>'CButtonColumn',
    ),
),

))
？>

你可以在$model->search（）方法上这样：

$criteria=new CDbCriteria;
$criteria->select = "t.*, t.price - (t.price * t.discount/100) as total_price";
// EDITED: Added for Sort:
$sort = new CSort();
$sort->attributes = array(
                        'defaultOrder'=>'name ASC',
                        'total_price'=>array(
                            'asc'=>'total_price ASC',
                            'desc'=>'total_price DESC',
                          ),
                          '*', // Add order in the other fields.
                    );
return new CActiveDataProvider($this, array(
        'criteria'=>$criteria,
        'sort'=>$sort, // Added to sort.
);

并在"产品"模型类上创建一个非持久性属性：

public $total_price;

最后，将"total_price"放在rules（）上，数组中有（"fe"，"on"=>"search"），类似于以下内容：

array('id, name, price, discount, total_price', 'safe', 'on'=>'search'),