Class 'vB_Api_Extensions' not found

[hienntp]

Hello,
I have another one and I need your help.
I created a mode for my forum (vb5). I used ajax to transfer data from outside to core/packages/helloworld/api/page.php

  <?php  
class helloworld_Api_Page extends vB_Api_Extensions  
{  
public $product = 'helloworld';  
public $version = '1.0.0';  
public $developer = 'Bkav';  
public $title = 'New Home';  
public $minver = '5.1.5';  
public $maxver = '5.9.99';  
public $infourl = '';  
public $checkurl = '';  
public $AutoInstall = 0;  
public $extensionOrder = 5;    
public function fetchPageById($page, $pageid, $routeData = array())  
{          
if(isset($_POST['page']))        
{                
echo "return";          
 }        
page['hwWorld'] = $strReturn;            r
eturn $page;  
}
 }
?>

The ajax I used:

$(document).ready(function(){
 $("a#pagetab").live("click",function(){
  
 var fid=$(this).attr("rel");
  
 var p=$(this).attr("data");
 var rs = $.ajax({
                url: "core/packages/helloworld/api/page.php",
                type: "POST",
                data: { forumid:fid, page:p },
                dataType: "html",
                beforeSend: function () {
                    $("div.active").html("<img src='modnews/images/gif-load.gif'/> Loading...");
                }
            });
        rs.done(function(data){
            $("div.active").html(data);
        });  
 }); });

And the result I got:

<br /> <b>Fatal error</b>: Class 'vB_Api_Extensions' not found in <b>/var/www/betawhitehat/core/packages/helloworld/api/page.php</b> on line <b>7</b><br />

Can you help me solve this?

[Lynne]

You should post about this over on vbulletin.org, the modification site, in their Programming forum.

[glennrocksvb]

I don't think you can call an extension api in ajax like that.

What you can do is create a frontend controller that you can call via ajax.

Save this in /includes/vb5/frontend/controller/helloworld.php

class vB5_Frontend_Controller_HelloWorld extends vB5_Frontend_Controller
{
    public function actionSayHello()
    {
        //you can call any api method here, for example:
        $api = Api_InterfaceAbstract::instance();
        $data = array(
            'userid' => $_POST['userid']
        );
        $result = $api->callApi('user', 'fetchProfileInfo', $data);
        if (!empty($result) AND empty($result['errors'])) {
            return 'Hello world, ' . $result['username'] . '!';
        }
        return 'Hello world!';
    }

} 

Then call via ajax:

$.ajax({
    url: vBulletin.getAjaxBaseurl() + '/helloworld/sayhello',
    type: "POST",
    data: { userid: 1 },
    success: function(response) {
        alert(response);
    }
});

Or you can call an api method directly via ajax:

$.ajax({
    url: vBulletin.getAjaxBaseurl() + '/ajax/api/user/fetchUserInfo',
    type: "POST",
    data: { userid: 1 },
    dataType: 'json',
    success: function(response) {
        if (response && !response['errors']) {
            alert('Hello world, ' + response['username'] + '!');
        }
        else {
            alert('Hello world!');
        }
    }
});

The codes above are not tested but you get the idea.