詳解Yii實現分頁的兩種方法

Yii實現分頁的兩種方法,一種是用DAO實現,另外一種是在widget實現.

各有優點吧,第一種效率會高一點, 第二種可以使用自帶的表格,方便一點.

一. DAO實現分頁.

 [Controller層]

public function actionReport()
  {
    $sql = "select remitdate, sum(rate) sumrate from td_delivery 
      group by remitdate 
      order by remitdate desc";
    $criteria=new CDbCriteria();
    $result = Yii::app()->db->createCommand($sql)->query();
    $pages=new CPagination($result->rowCount);
    $pages->pageSize=2; 
    $pages->applyLimit($criteria); 
    $result=Yii::app()->db->createCommand($sql." LIMIT :offset,:limit"); 
    $result->bindValue(':offset', $pages->currentPage*$pages->pageSize); 
    $result->bindValue(':limit', $pages->pageSize); 
    $posts=$result->query();
    $this->render('report',array( 
        'posts'=>$posts, 
        'pages'=>$pages, 
    ));
  }

 [View層]

<?php foreach($posts as $row):?> 
<?php echo CHtml::link($row["remitdate"],array(&#39;delivery/view&#39;,&#39;remitdate&#39;=>$row["sumrate"]));?> 
<?php echo $row["sumrate"]."<br />" ?>
<?php endforeach;?>
<?php 
//分页widget代码: 
$this->widget(&#39;CLinkPager&#39;,array(&#39;pages&#39;=>$pages));
?>

優點

二. widget實現分頁

[model層]

/**
   * @var string attribute : 日运费 (统计用)
   * 需要对新增加的字段做个声明
   */
  public $dayrate;
 
 
  /*
   * 统计功能: 统计每日的运费
   */
  public function statistics()
  {
    $criteria = new CDbCriteria;
    $criteria->select = 'remitdate, sum(rate) AS dayrate';
    $criteria->group = 'remitdate';
     
    return new CActiveDataProvider(get_class($this), array(
      'criteria'=>$criteria,
      'sort'=>array(
        // 表头设置点击排序的字段
        'attributes'=>array(
          'remitdate',
          'dayrate'=>array(
            'asc'=>'dayrate',
            'desc'=>'dayrate DESC',
          )
        ),
        'defaultOrder'=>'remitdate desc',
      ),
    ));  
  }

[Controller層]

/**
   * 运单统计功能:
   * 按日期统计
   */
  public function actionReport()
  {
    $model=new Delivery('statistics');
    $model->unsetAttributes(); // clear any default values
      
    $this->render('report',array(
      'model'=>$model,
    ));
  }

 [View層]

<?php $this->widget(&#39;zii.widgets.grid.CGridView&#39;, array(
  &#39;id&#39;=>&#39;delivery-grid&#39;,
  &#39;dataProvider&#39;=>$model->statistics(),
  &#39;filter&#39;=>$model,
  &#39;columns&#39;=>array(
    &#39;remitdate&#39;,
    &#39;dayrate&#39;,
    array(
      &#39;class&#39;=>&#39;CButtonColumn&#39;,
    ),
  ),
)); ?>

層]rrreee

 [View層]

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