especially i like at the beginning of the videos when you pronounce your name (i never understand it:)

[code=php]
<?php

/**
* If a controller action has the @ajax tag in its doc comment, then
* the output will be a json string of the controller's json property
*/
class App_Controller_Action_Helper_Ajax extends Zend_Controller_Action_Helper_Abstract
{
    /**
     * @var bool
     */
    protected $_isAjax = false;
   
    /**
     * (non-PHPdoc)
     * @see library/Zend/Controller/Action/Helper/Zend_Controller_Action_Helper_Abstract#preDispatch()
     */
    public function preDispatch()
    {
        $this->_isAjax = false;
        $controller = $this->getActionController();
        $action = $this->getRequest()->getActionName();
        $methodName = $action . 'Action';
       
        if (!method_exists($controller, $methodName)) {
            return;
        }
       
        $class = new ReflectionClass(get_class($controller));
        $method = $class->getMethod($methodName);
       
        if (!preg_match('/@ajax/', $method->getDocComment())) {
            return;
        }
       
        $this->_isAjax = true;
        $controller->getHelper('layout')->disableLayout();
    }
   
    /**
     * (non-PHPdoc)
     * @see library/Zend/Controller/Action/Helper/Zend_Controller_Action_Helper_Abstract#postDispatch()
     */
    public function postDispatch()
    {
        if (!$this->_isAjax || !isset($this->getActionController()->json)) {
            return;
        }
       
        $json = $this->getActionController()->json;
        if (!is_string($json)) {
            $json = Zend_Json::encode($json);
        }
       
        $this->getActionController()->getHelper('viewRenderer')->setNoRender();
        header('Content-type: application/json');
        echo $json;
    }
}
[/code]

My only comment right now would be that I don't like holding the individual action methods responsible for disabling the layout, flagging the view renderer, etc. Instead I put that logic in the post dispatch hook and set a flag in each action which should return a JSON response.

ex:

public function jsonAction() {
    $this->_isJsonRequest = TRUE;
    ...
}

public function postDispatch() {
    if ($this->_isJsonRequest === TRUE) {
        $this->_helper->viewRenderer->setNoRender(TRUE);
        $this->_helper->getHelper('layout')->disableLayout();
        // Anything else that needs to happen in an action returning a JSON response
    }
}

Not sure if this is the best way, but that's how I'm doing it. Could probably get more fancy by detecting AJAX requests via the headers sent rather than having to set a flag manually, but maybe another day.

Jon ,
Thank you very much , i am really appreciate it
very much
tawfek

Thanks for the feedback! Personally, I think that Tawfek's contributions to Zendcasts are great. While his English isn't perfect, I think that first and foremost, this is a learning portal and if he can come and do 3 videos about the Zend Framework (in comparison to the 30 that are done by myself, a native English speaker), it helps enrich the overall content of the site.

Furthermore, the topics he covers are areas that he obviously demonstrates competency. If you're not a fan of his voice, simply download the project file.

When I do my own videos, I have two monitors so that the code I'm writing has already been written and I'm literally transcribing it (that's why I look like I never make mistakes, something that's very far from the truth.)

I hope you enjoy the video that was posted today.

Best,
-
Jon Lebensold

I like your videos, but what bothers me is that you do errors in each word as you write, if you doesn't have any physical handicap (in this case ignore this part), so pls try to focus on it.

The other stuff is that your english isn't good, but this doesn't bother me because your english is understandable and i'm very happy for every video you post, because In every video i discover something.

This post is intended as a positive criticism and I don't want to offend you.

So i want to thank you for your videos and I look forward to more videos.

Have i nice day.

Topics Covered

• Review of firebug

• 2:00: writing a custom Action Helper

• 5:30: configuring the Zend Bootstrap

• 10:00: Testing the Action Helper Through Firebug

• 12:30: Writing magic methods

• 16:00: Setting up a JSON-friendly view

• 18:00: Integrating Zend_Db

• 26:00: Implementing jQuery

• 29:00: Console Logging with Firebug and jQuery