thinkphp中fetch渲染模板的处理

 <script type="text/javascript">
     function xiugai(elm){
         var formData1=$("#a1_"+elm).val();
         var formData2=$("#a2_"+elm).val();
         var formData3=$("#a3_"+elm).val();
         var formData4=$("#a4_"+elm).val();
         var formData5=$("#a5_"+elm).val();
         var formData6=$("#a6_"+elm).val();
         $.ajax({
             url:'__URL__/xiugai',
             type:'post',
             data:{
                 data_list1:formData1,
                 data_list2:formData2,
                 data_list3:formData3,
                 data_list4:formData4,
                 data_list5:formData5,
                 data_list6:formData6
             },
             success:function(data){
                 art.dialog({
                 drag: false,
                 resize: false,
                     content:data,
                     button: [
                         {
                             name: '确定',
                             callback: function(){
                             var formData6=$("#b1_"+elm).val();
                             var formData7=$("#b2_"+elm).val();
                             var formData8=$("#b3_"+elm).val();
                             var formData9=$("#b4_"+elm).val();
                             var formData10=$("#b5_"+elm).val();
                             var formData11=$("#b6_"+elm).val();
                                 $.ajax
                                 ({
                                     url:'__URL__/xiugai_do',
                                     type:'post',
                                     data:{
                                         data_list1:formData6,
                                         data_list2:formData7,
                                         data_list3:formData8,
                                         data_list4:formData9,
                                         data_list5:formData10,
                                         data_list6:formData11
                                     },
                                     success:function(data)
                                     {
                                         if(data==1){
                                             art.dialog(

                                             '修改成功了!',
                                                 function(){
                                                     window.location.href="{:U('infotempmage/index')}";
                                             });

                                         }else{
                                             art.dialog(
                                                 '修改失败了!',
                                                 function(){
                                                     window.location.href="{:U('infotempmage/index')}";
                                             });
                                         }
                                     }
                                 });
                                 return false;
                             },
                             focus: true
                         },
                         {
                             name: '取消',
                             callback: function(){
                                 return true;
                             }
                         }
                     ]
                 });
             }
         });
     }
 </script>

 public function xiugai(){
         $data_list_arr=$this->_post();
         if($data_list_arr){
             $this->assign('data_list_arr',$data_list_arr);
         }
         $a=$this->fetch('xiugai');
         echo $a;
     }

     public function xiugai_do(){
         $data_list_arr=$this->_post();
         if($data_list_arr){
             $a=DD('Notice.Message')->message_save($data_list_arr);
         }
         if($a){
             echo '1'; //修改成功
         }else{
             echo '-1';  //修改失败
         }
     }