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POHow does one reload the contents of an element without refreshing the page after sending a form (The cake way)?
 

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  1. POHow does one reload the contents of an element without refreshing the page after sending a form (The cake way)?
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    <p>I have an element (a comments list and form) that is used in many places in my application. It works all fine and dandy, except it requires refreshing the entire page. This can be problematic, especially when it resets the game to which your comment belongs, causing all progress to be tragically lost. I have very limited experience with AJAX, so what is the most effective, simplest way to reload the element with the added comment?</p> <p>Here is my element:</p> <pre><code>&lt;?php /* set variables: $data : data of the parent $type : the type of the parent $name : (optional)unique name to avoid naming conflicts */ if(!isset($name)) { $name = 0; } foreach($data['Comment'] as $comment){ echo '&lt;div class="comment"&gt;'.$comment['content']. ' - '.$this-&gt;Html-&gt;link($comment['User']['username'],array('controller'=&gt;'users','action'=&gt;'view',$comment['User']['id'])) .'&lt;/div&gt;'; } echo $this-&gt;Form-&gt;create(null, array('url' =&gt; '/comments/add','id'=&gt;'qCommentForm')); echo $this-&gt;Html-&gt;link('Leave comment','javascript:toggleDisplay("comment'.$name.'")'); echo '&lt;br&gt;&lt;div id="comment'.$name.'" style="display:none;"&gt;'; echo $this-&gt;Form-&gt;input('Comment.parent_id', array('type'=&gt;'hidden','value'=&gt;$data[$type]['id'])); echo $this-&gt;Form-&gt;input('Comment.parent_type', array('type'=&gt;'hidden','value'=&gt;$type)); echo $this-&gt;Form-&gt;textarea('Comment.content',array('div'=&gt;'false','class'=&gt;'small','label'=&gt;false)); echo $this-&gt;Form-&gt;submit(__('Leave comment'),array('div'=&gt;'false','class'=&gt;'small')); echo '&lt;/div&gt;'; echo $this-&gt;Form-&gt;end(); ?&gt; </code></pre> <h3>Update</h3> <p>Okay, so I understand a lot more about ajax thanks to your posts, but I still do not understand how to do this the "cake way".</p>
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    1. COYou have to use Javascript to inject something inside a DIV HTML block (for example). There are different ways of doing it. You could use jquery js script or you could write a xmlhttprequest object request by yourself...
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    2. COWill that work with PHP? And how would I still use the controller action when clicking the "Leave Comment" button without refreshing? Right now, I just put this at the bottom of the comment add action to go back to that page: `$this->redirect($this->referer());`
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    3. COPHP has nothing to do with js, since js it's executed client side, so yes, it will work with PHP. There is not a simple/magic way to do what you need without refactoring some application/framework/controller pieces of code. No way to find the complete answer here since no one knows your application...
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