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我正在尝试从视图向控制器发出 ajax 请求，ajax 请求工作正常，但从控制器没有返回到视图。我不知道问题出在哪里.. 我正在尝试的是在我的视图方面我正在显示来自控制器的一些数据并且有一个选择框。当我从选择框中选择一个城市时，它会调用 ajax 请求并应在 view.ctp 中显示该特定城市的结果。

           $('#cityid').change(function() {

   $city_id= $('#cityid :selected').val();
   alert($city_id);

    $.ajax({
              url     : "<?php echo Router::url(array('controller' => 'deals', 'action' =>'topdeals'), true); ?>",
              type    : "POST",
              cache   : false,
              data    : {city_id: city_id},
              success : function(data){
              alert(data);

              }
          });

        });

     });

并且在视图中

            <div id="form">
             <?php echo $this->Form->create('Deal',
             array('action'=>'topdeals','type'=>'post'));?>
              <?php
             echo $this->Form->input('city_id',
        array('label'=>'City','type'=>'select',
       'id'=>'city_id','empty'=>'select City','options' =>$city));
             echo $this->Form->end();
               ?>

            </div>

            <div class="line"></div>


              <?php
          if(!empty($topdealsortbyrank))
             {

              foreach($topdealsortbyrank as $topdealsortbyrank)
                 {?>
         <div class="items">

            <div class="itemslogo" >
             <?php echo $this->Html->image('deal/dealimage/'.$topdealsortbyrank['Deal']['image'],array('width'=>"100px",'height'=>"80px"));?>
            </div><!-- items Logo ends-->


            <div class="itemdetails">
              <b><?php echo $topdealsortbyrank['Advertiser']['name']?></b>
    <p class="red"><?php echo $topdealsortbyrank['Deal']['title']?></p>
                <?php
                     }
                       }?>

并且在控制器中

           function topdealajax()

    {
        $this->log('Ajax call -----------------');
        if ($this->request->isAjax())
        {
            $this->log('inside if request is ajax -----------------');
          $this->layout = null;
            $this->view = 'topdeals';

           if(!empty($this->request->data)) {
            $this->log('inside if  not empty of params -----------------');
            $data = $this->request->data['city_id'];
            $this->log($data);
            $city_id=$data['city_id'];
            $this->log($city_id);
            $city_id= $this->request->data['city_id'];
       // $this->log($city_id);
       $topDealSortbyRank1=$this->Deal->find('all',     array('conditions'=>array('date_expiry >=' =>date('Y-m-d ') ,
                    'date_expiry <=' => 'date_expiry','Deal.city_id'=>$city_id),'order'=>array('Deal.deal_rank ASC')));
               //$this->log($topDealSortbyRank1);
                $this->set('topdealsortbyrank',$topDealSortbyRank1);
                 $this->render('topdeals');
                }
                     }
                     }
4

1 回答 1

0 
/*IN THE AJAX REQUEST YOU SHOULD HAVE*/
$.ajax({
.....
success: function(data){ $('#MYDIV').html(data);}, //YOU CAN APPEND OR REPLACE THE CONTENT OF A CONTAINER WITH THE RESPONSE
...
});

//in DealsController::topdeals() you should have at the begining
if ($this->request->isAjax()):
        $this->layout = null;
        $this->view = 'view_ajax'; //Other view that doesn't needs layout, only if necessary 
    endif;

/*DO WHATEVER YOU WANT HERE, SEND IT TO THE VIEW, THE VIEW GETS RENDERD AND RETURN AS A RESULT*/
于 2013-08-28T11:49:34.627 回答