Question

Belove是我的代码，我正在尝试将输出从控制器传递到视图，现在我的问题是当我对代码$errormsg = $this->_setError('f_001'); $this->_view->set('errormsg', $errormsg);进行编码时，它在index（）中工作，但不在processjobsearch（）中。

processjobsearch（）函数我通过ajax调用，如何设置输出现在查看，我哪里出错了？请任何人帮助我..

**在jobs / index.tpl **中调用函数

    function jobsearch()
    {
         var form=$("#jobSearchForm")   
           //$("#result").html("<img alt="ajax search" src='ajax-loader.gif'/>"); 
         $.ajax({
                type: 'POST',
                url: '/jobs/processjobsearch/',
                data: form.serialize(),
                success: function(data){
                alert(data);  
                //document.getElementById("display").innerHTML = data; 
                            $.each(data, function(index, value) { alert(value);
                                     $.each(value, function(index, value) { 
                                      $("#data").append("<tr><td>" + value + '</td></tr>');
                                });   
                             });         
                            }       
            }); 
    }
//accessing value like this

<?php echo $errormsg; ?> //this gives me output if called from index() 
           //but doesn't give output when called from processjobsearch()

全局视图

class View
{
    protected $_file;
    protected $_data = array();

    public function __construct($file)
    {
        $this->_file = $file;
    }
   public function assign($variable , $value)
        {
        $this->data[$variable] = $value;
        }
    public function set($key, $value)
    { 
        $this->_data[$key] = $value;
    }

    public function get($key)
    {
      return $this->_data[$key];
    }

    public function output()
    {
        if (!file_exists($this->_file))
        {
            throw new Exception("View " . $this->_file . " doesn't exist.");
        }

        extract($this->_data);
        ob_start();
        include($this->_file);
        $output = ob_get_contents();
        ob_end_clean();
        echo $output;
    }
}

全球控制器

 class Controller
    {
        protected $_model;
        protected $_controller;
        protected $_action;
        protected $_view;
        protected $_modelBaseName;  
        protected $cookName;
        //protected $_data = array();

        public function __construct($model, $action)
        { 
            $this->_controller = ucwords(__CLASS__);
            $this->_action = $action;
            $this->_modelBaseName = $model;

            $this->_view = new View('views' . DS . strtolower($this->_modelBaseName) . DS . $action . '.tpl');
        }

        protected function _setModel($modelName)
        {
            $modelName .= 'Model';
            $this->_model = new $modelName();
        }

        protected function _setView($viewName)
        {
            $this->_view = new View('views' . DS . strtolower($this->_modelBaseName) . DS . $viewName . '.tpl');
        }
        public function _setError($errorCode)
        {  //echo "pass1";
         $errormsg = $this->_model->getError($errorCode); //echo $errormsg [jserr_msg]; 
         return $errormsg [jserr_msg];  
        }
}

jobscontroller

class JobsController extends Controller
 {
    public function __construct($model, $action)
    {
        parent::__construct($model, $action);
        $this->_setModel($model);
    }     
    public function index()
    {  
        $this->_view->set('title', 'Job Search');           
       $script2 = BASE_FRONT.'js/jquery-1.11.3.min.js';     
        $script4 = BASE_FRONT.'js/scw.js';      
        $js_global = array( $script2, $script4);
       $this->_view->set('js_global', $js_global);
     $errormsg =  $this->_setError('f_001'); 
      $this->_view->set('errormsg', $errormsg);    //in index function it works  
        return $this->_view->output();
    }
    /**
    * Defines processjobsearch, called from jobs/index.tpl file
    * it process value to search getJobSearchData function in jobsinmodel to get relative detail.
    */
    public function processjobsearch()
{ 
try {   
    $valToSearch = isset($_POST['keyword']) ? trim($_POST['keyword']) : NULL;
        $nature = isset($_POST['nature']) ? trim($_POST['nature']) : NULL;
        $jobs = $this->_model->getJobSearchData($valToSearch, $nature);    
      // print_r($jobs);
    $errormsg =  $this->_setError('f_001'); 
    $this->_view->set('errormsg', $errormsg); //here it doesn't works
    $this->_view->set('jobs', $jobs);   
    // return $this->_view->output();   
    } catch (Exception $e) {
        echo '<h1>Application error:</h1>' . $e->getMessage();
    }       
   }
 }

Answer 1

_setError()或Controller中未定义JobsController方法。它不应该使用index()或processjobsearch()方法。

我认为你想做这样的事情（尽管我不确定为什么）：

class Controller {
    //...

    protected function _setError($errorCode) {
        //do something with code to produce a message??
        return $errorMsg;
    }
}

编辑：

好吧，我明白你现在在做什么。 $errormsg方法中的变量jobs/index.tpl由View::output()方法完成。显然，JS（作为客户端）无法更新此PHP变量，因此您需要通过AJAX获取值并填充包含此值的HTML元素。

我可以看到你的JS代码试图使用processjobsearch()（通过AJAX）的结果填充表格单元格，但实际上没有从此方法返回任何内容。您正在向视图中添加数据，但不会将其输出。

或许，您可以使用jobs/processjobsearch.tpl而不是jobs/processjobsearch.json，并将其填充到您的观看数据中。然后，您可以通过ajax获取此数据并使用JS更改错误消息。

这样的事情：

function jobsearch()
{
    var form=$("#jobSearchForm")
    //$("#result").html("<img alt="ajax search" src='ajax-loader.gif'/>");
    $.ajax({
        type: 'POST',
        url: '/jobs/processjobsearch/',
        data: form.serialize(),
        success: function(data){
            var json = $.parseJSON(data);

            $.each(json.jobs, function(index, value) { alert(value);
                $.each(value, function(index, value) {
                    $("#data").append("<tr><td>" + value + '</td></tr>');
                });
            });

            $('#errorr-msg').html(json.errormsg);
        }
    });
}

将控制器的输出传递给视图

1 个答案: