Joomla 3.3 AJAX呼叫

Question

The following code is in my view/tmpl/edit.php :

<script type="text/javascript">            
            jQuery("#button").click(function(){
                jQuery.ajax({
                    url:'somefile.php',
                    type:'POST',
                    data: {action:"1"},
                    success: function(response) {alert(response);}
                });
            });        
        </script>

and in the same folder i have the somefile.php with the following code:

 if (isset($_POST['action'])) {
        SomeFunction();
 }

 function SomeFunction()
 {
    ...do something
 }

My problem is that when I hit the button it never access the somefile.php although the script is executed (checked with alerts). What am I doing wrong here?

Please show me some directions on that with some relevant sample/example code.

Thanks.

Answer 1

1. If you're calling 'somefile.php' as your URL that will equate to the current URL you're browsing in Joomla + the file name. It will not map to the path of your file.
   
   eg if you're on the front page of the site ie http://example.com the AJAX request will go to
   http://example.com/somefile.php
   
   while on a page at http://example.com/blog/mypost01 it will map to http://example.com/blog/somefile.php .
   
   Both of these will be wrong as your file is actually somewhere like:
   
   http://example.com/components/com_mycomponent/view/tmpl/somefile.php

2. First up I would use a proxy like Charles to monitor the full request and response , cycle this should give you a clear idea of whats going on and the entire request/redirect/response cycle.

3. Make sure you have Error Reporting turned all the way up to Development and Joomla DEBUG mode enabled, that way you may see errors rather than a 200 result being returned.

4. Some Joomla 3 htaccess configurations and security extensions (AdminTools) will prevent direct access to php files. If this is the problem, it's probably a sign that you're doing it in an unsafe/incorrect way.

5. Since you're using Joomla 3.3 read about Us ing Joomla Ajax Interface on the Joomla Doc's site .

6. Finally, as you appear to be building your own component, you could/should be passing the AJAX call via your component and to a method in a suitable controller rather than accessing a PHP file directly.