Yii CGridview使用CSqlDataProvider排序

Question

我正在使用CSqlDataProvider来构造CGridview我不能使用CActiveRecord,因为结果集很大并且引发了内存错误.列需要是可排序的.我该怎么做到这一点？

示例sql

$orders_query_raw = 'select  o.order_id, o.customer_name, o.customer_email, o.customer_advertiser, o.payment_method, o.created, o.last_updated, o.currency, o.currency_value, o.status, o.blinking, s.name, ot.text order_total, o.customer_id, op.product_id, o.phonebooking 
from `order` o, `order_total` ot, `order_status` s , order_product op  
where o.order_id = op.order_id and o.status = s.order_status_id and ot.order_id = o.order_id and s.language_id = '1' and ot.class = 'ot_total'  group by o.order_id'

sql dataprovider

    $dataProvider = new CSqlDataProvider($orders_query_raw, array(
        'totalItemCount'=>$count, // get from a count query
        'pagination'=>array(
            'pageSize'=>50,
        ),
    ));

和gridview

$this->widget('zii.widgets.grid.CGridView', array(
    'dataProvider' => $dataProvider,
    'id'=>'order-grid',
    'columns' => array(
        array(
            'header'=>'Order ID',
            'value'=>array($this, 'gridOrderId'),
            'type'=>'raw',
        ),
        array(
            'header'=>Yii::t('order', 'Customers'),
            'name'=>'customer.fullName',
            'value'=>'CHtml::link($data[\'customer_name\'], \'mailto:\'.$data[\'customer_email\'])',
            'type'=>'raw',
        ),
        array(
            'header'=>Yii::t('order', 'Order total'),
            'value'=>'strip_tags($data[\'order_total\'])',
            'type'=>'raw',
            'htmlOptions'=>array(
                'style'=>'text-align:right;',
            ),
        ),
        array(
            'header' => Yii::t('order', 'Date Purchased'),
            'name' => 'created',
        ),
        array(
            'header'=> Yii::t('order', 'Last modify date'),
            'value'=>array($this, 'gridLastModified'),
        ),
        array(
            'header' => Yii::t('order', 'Status changed by'),
            'value' => array($this, 'gridLastModifiedUserFirstName'),
        ),
        array(
            'header' => Yii::t('provider', 'Provider\'s code'),
            'value' => array($this, 'gridProviderCode'),
            'type' => 'raw',
            'htmlOptions'=>array(
                'class'=>'nobr',
            ),
        ),
        array(
            'header' => Yii::t('order', 'Follow up'),
            'value' => array($this, 'gridFollowUp'),
            'type' => 'raw',
        ),
        array(
            'header' => Yii::t('order', 'Order status'),
            'value' => '$data[\'name\']',
        ),
        array(
            'class'=>'CButtonColumn',
            'template'=>'{update}',
            'header'=>'Action',
            'buttons'=>array(
                'update'=>array(
                    'url'=>'Yii::app()->createUrl(\'order/update\', array(\'order_id\'=>$data[\'order_id\']))',
                ),
            ),
        ),
    ),
));

谢谢

Answer 1

要使用数据提供程序在网格视图中启用排序(通过单击列标题)CSqlDataProvider,您至少需要2件事:

1. 必须CSort为数据提供者定义对象attributes,并且可以对其进行排序.
2. 必须定义name列的列, 但仅在您指定columnsgrid-view 的属性时,否则如果columns属性为空,则CSort对象中提到的任何属性都是可排序的.

也就是说,另一个答案应该适用于sql很简单的情况,来自1个表,但在你的情况下,sql有点复杂,即数据来自多个表,解决方案会略有改变.

在这种情况下,您必须考虑冲突的列名(如果有)以及CSort attributes阵列的正确规范.

例子:

• 任何表中都没有冲突的列名(与其他答案相同):

  $dataProvider=new CSqlDataProvider($sql, array(
      'totalItemCount'=>$count,
      'sort'=>array(
          'attributes'=>array(
              'order_id, order_total' // csv of sortable column names
          )
      )
  ));
  

  然后在你的网格中:

  array(
      'header'=>Yii::t('order', 'Order total'),
      'name'=>'order_total',// to make header clickable to sort
      'value'=>'strip_tags($data[\'order_total\'])',
      'type'=>'raw',
      'htmlOptions'=>array(
          'style'=>'text-align:right;',
      ),
  ),
  

• 冲突的列名称:

  1. 首先,在sql中提供所有冲突的名称别名.

  2. 其次,指定这些别名作为排序attributes的CSort对象:

     'attributes'=>array(
         'some_alias, some_other_alias'
     )
     

  3. 指定name列中的列columns:

     array(
         'header'=>'Foo',
         'name'=>'some_alias',
         'value'=>'$data[\'some_alias\']' // this is actually redundant in this
         // case, because the name will itself pick up the value, and we don't
         // need to specify value explicitly if we are not applying any function to it
     )
     

请注意name,除非您要单击以对标题进行排序,否则只需指定排序对象即可启用通过url调用进行排序.