CakePHP 2.1 Ajax 验证错误 - CakePHP 2.1 Ajax validation errors

CakePHP 2.1 Ajax validation errors

本文关键字：验证错误 Ajax CakePHP | 更新日期: 2023-09-27

我正在尝试在CakePHP 2.1中为联系表单获取Ajax和jQuery的验证错误。在名称字段模糊时，调用一个 js 函数：

$(document).ready(function(){
$('#name').blur(function(){
    $.post(
        '/Cake_ajax/Contacts/validate_form',
        { field: $(this).attr('id'), value: $(this).val() },
        handleNameValidation
    );
});
function handleNameValidation(error){
    if(error.length > 0){
        if($('#name-notEmpty').length == 0){
            $('#name').after($('<div id="name-notEmpty" class="error-message">' + error + '</div>'));
        }
    }else{
        $('#name-notEmpty').remove();
    }
}
});

javascript 在我的控制器中调用 validate_form 函数：

public function validate_form(){
        if($this->RequestHandler->isAjax()){
            $this->request->data['Contact'][$this->request->params['form']['field']] = $this->request->params['form']['value'];
            $this->Contact->set($this->request->data);
            if($this->Contact->validates()){
                $this->autorender = FALSE; // don't render a view
            }else{
                $error = $this->validateErrors($this->Contact);
                $this->set('error', $error[$this->request->params['form']['field']]);
            }
        }
    }

在我看来，调用错误时我遇到了几个错误：

Undefined index: form [APP'Controller'ContactsController.php
Undefined index: form [APP'Controller'ContactsController.php

我处于智慧的尽头，我对CakePHP相当陌生。任何帮助将不胜感激。

在你的控制器中，你应该有如下的东西。Cake 2.0 取代了 RequestHandlerComponent 和 Controller 中的许多功能。它还在所有地方替换了$this->参数数组，并将旧的$this->data替换为$this->request->data，类似的东西。您可以访问迁移指南。

    public function validate_form(){
        if($this->RequestHandler->isAjax()){
           $this->request->data['Contact'][$this->request['form']['field']] = $this->request['form']['value'];
           $this->Contact->set($this->request->data);
           if($this->Contact->validates()){
              $this->autorender = FALSE; // don't render a view
           }else{
             $error = $this->validateErrors($this->Contact);
             // didn't validate logic
             $this->set('error',$this->Contact->validationErrors[$this->request['data']['field']][0]);
          }
       }
    }

尝试$this->request->params['field']而不是$this->request->params['form']['field']。

或者在您检查isAjax()后，尝试对$this->request->params进行var_dump。从您得到的错误来看，表单索引在$this->request->params中不存在。

如果你想模拟一个 POST，就像使用标准表单和 Cake FormHelper 时所做的那样，你也可以简单地用 FormHelper 命名输入字段的方式命名发布的参数。

$j.post(
    '/Cake_ajax/Contacts/validate_form',
    { "data[Contact][" + $(this).attr('id') + "]": $(this).val() },
    handleNameValidation
);

这将自动填充$this->request->data['Contact']['name']，您可以只注释此行：

//$this->request->data['Contact'][$this->request->params['form']['field']] = $this->request->params['form']['value'];