问题的Ajax助手在蛋糕PHP [英] Problem with Ajax Helper in Cake PHP

问题描述

我想在我的博客的评论部分实现Ajax功能。我已经下载了原型1.6.0.3.js，并将其放在webroot的js文件夹中。
我在布局文件（default.ctp）中进行了以下更改

  $ javascript-> link array（'prototype'））; 
  

此外，以下代码已添加到控制器中

  var $ helpers = array（'Html'，'Form'，'Ajax'，'Javascript'）; 
  

这是我在posts_controller.php文件中的代码

 函数视图（$ id = null）{
 if（！$ id）{
 $ this-> Session-> setFlash（__ 'Invalid Post。'，true））; 
 $ this-> redirect（array（'action'=>'index'））; 
} 
 $ post = $ this-> Post-> read（null，$ id）; 
 $ comments = $ this-> Post-> Comment-> find（'all'，
 array（'conditions'=> array（'Post.id'=> $ id ）））; 
 $ this-> set（compact（'post'，'comments'））; 
} 
  

我在view.ctp文件中的代码

 < h2>评论< / h2> 
< div id =comments> 
<？php foreach（$ comments as $ comment）：？> 
< div class =comment> 
< p>< b><？php echo $ comment ['Comment'] ['name']; ？>< / b>< / p> 
< p><？php echo $ comment ['Comment'] ['content']; ？>< / p> 
< / div> 
<？php endforeach; ？> 
<？php echo $ ajax-> form（'/ comments / add'，'post'，array（'update'=>'comment'））;？> 
<？php echo $ form-> input（'Comment.name'）;？> 
<？php echo $ form-> input（'Comment.content'）;？> 
<？php echo $ form-> input（'Comment.post_id'，array（'type'=>'hidden'，'value'=> $ post ['Post'] ['id ']））;？ 
<？php echo $ form-> end（'Add Comment'）;？> 
< / div> 
  

我在comments_controller.php中添加了以下函数

  function add（）{
 if（！empty（$ this-> data））{
 $ this-> Comment->创建（）; 
 if（$ this-> Comment-> save（$ this-> data））{
 $ comments = $ this-> Comment-> find（'all'，array 'conditions'=> array（'post_id'=> $ this-> data ['Comment'] ['post_id']），'recursive'=> -1）; 
 $ this-> ; set（compact（'comments'））; 
 $ this-> render（'add_success'，'ajax'）; 
} else {
 $ this-& add_failure'，'ajax'）; 
} 
} 
} 
  

以下是add_success.ctp文件中的代码

 <？php foreach（$ comments as $ comment）： ？> 
< div class =comment> 
< p>< b><？php echo $ comment ['Comment'] ['name'];？& < / b>< / p> 
< p><？php echo $ comment ['Comment'] ['content'];？>< / p> 
< / div> 
<？php endforeach;？> 
  

我不能添加评论，当我点击添加评论按钮没有什么发生。我手动添加评论在数据库和工作。但是我在尝试Ajax助手时遇到问题。

问题出在哪里，对不起这么长的问题[：（]

解决方案

也许尝试做$ form-> submit（'Add Comment'）;生成按钮，看看是否有区别，并实际执行ajax请求。

您有任何JavaScript错误吗？

I am trying to implement the Ajax feature in the comments section of my blog. I have downloaded prototype-1.6.0.3.js and have placed it in the js folder inside webroot. I have made the following changes in the layout file(default.ctp)

$javascript->link(array('prototype'));

Also, following code has been added to controllers

var $helpers = array('Html', 'Form', 'Ajax','Javascript');

This is my code in the posts_controller.php file

function view($id = null) {
    	if (!$id) {
    		$this->Session->setFlash(__('Invalid Post.', true));
    		$this->redirect(array('action'=>'index'));
    	}
    	$post = $this->Post->read(null,$id);
    	$comments = $this->Post->Comment->find('all',
array('conditions'=>array('Post.id'=>$id)));
    	$this->set(compact('post','comments'));
    }

My code in view.ctp file

<h2>Comments</h2>
<div id="comments">
<?php foreach($comments as $comment): ?>
  <div class="comment">
<p><b><?php echo $comment['Comment']['name']; ?></b></p>
      <p><?php echo $comment['Comment']['content']; ?></p>
</div>
<?php endforeach; ?>
<?php echo $ajax->form('/comments/add','post',array('update'=>'comments'));?>
   <?php echo $form->input('Comment.name');?>
   <?php echo $form->input('Comment.content');?>
   <?php echo $form->input('Comment.post_id',array('type'=>'hidden','value'=>$post['Post']['id']));?>
   <?php echo $form->end('Add Comment');?>
</div>

I have added the following function in the comments_controller.php

function add() {
    	if (!empty($this->data)) {
    		$this->Comment->create();
    		if ($this->Comment->save($this->data)) {
    			$comments = $this->Comment->find('all',array('conditions'=>array('post_id'=>$this->data['Comment']['post_id']),'recursive'=>-1);
    				$this->set(compact('comments'));
    				$this->render('add_success','ajax');
    				} else {
    				$this->render('add_failure','ajax');
    				}
    			 }
    		 }

And following is the code in the add_success.ctp file

<?php foreach($comments as $comment): ?>
<div class="comment">
<p><b><?php echo $comment['Comment']['name'];?></b></p>
<p><?php echo $comment['Comment']['content'];?></p>
</div>
<?php endforeach;?>

Now the problem is that I am not able to add comments. Nothing happens when I click on the add comments button. I have manually added comments in the databse and that works. But I am having problems when I am trying the Ajax Helper.

Where is the problem??And guys, sorry for such a long question.[:(]

解决方案

Do you have firebug installed so you can test to see if it is making the ajax request?

Perhaps try doing $form->submit('Add Comment'); to generate the button and see if it makes a difference and actually performs the ajax request.

Do you get any javascript errors?

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