MVC: how to ajax?

Question

I\'m going to start a project using a Zend Framework MVC implementation.

How do I work with ajax? I mean, should I place all ajax code into controller? Or into view?

Answer 1

My syntax might be older but this a sketch of my REST action from my Index Controller:

/**
 * REST Action for this application.
 *
 * @return void
 */
public function restAction()
{
    $this->_helper->viewRenderer->setNoRender(true);

    $parameters = (func_num_args() > 0) ? array($key => func_get_arg(0)) : $this->getRequest()->getParams();

    $key = 'restCommand';
    if(!array_key_exists($key, $parameters)) throw new Exception('Request for “' . $key . '” not found.');
    $restCommand = $parameters[$key];

    $xmlString = IndexModel::getEmptyXmlSet($restCommand);
    $xslFile = IndexModel::getModelFilePath('index');

    //Handle OPML-driven REST commands:
    if(stripos($restCommand, 'opml-') === 0)
    {
        $opmlCall = explode('-', $restCommand);
        if(count($opmlCall) != 3)
        {
            $xmlString = Songhay_SimpleXml::getXmlMessage('OPML Call Not Recognized', array('The number of parameters are incorrect.'));
        }
        else
        {
            $opmlSet = $opmlCall[1];
            $opmlId = $opmlCall[2];
            $xmlString = IndexModel::getRssFragmentWithOpml($opmlSet, $opmlId);
        }
    }

    //Handle general REST commands:
    switch($restCommand)
    {
        case 'deeplink':
            $key = 'id';
            if(!array_key_exists($key, $parameters)) throw new Exception('Request for “' . $key . '” not found.');
            $url = $parameters[$key];
            $xmlString = IndexModel::getRssFragment($url);
            $xmlString = Songhay_SimpleXml::loadXslString($restCommand, $xmlString, $xslFile);
            break;
        case 'index':
            $opmlFile = IndexModel::getModelFilePath('index', '.xml');
            $xmlString = Songhay_SimpleXml::loadXmlAndStripNamespaces($opmlFile);
            $xmlString = Songhay_SimpleXml::loadXslString($restCommand, $xmlString, $xslFile);
            break;
        default:
            $xmlString = Songhay_SimpleXml::loadXslString($restCommand, $xmlString, $xslFile);
    }

    $response = $this->getResponse();
    $response->setHeader('Content-Type', 'text/xml');
    $response->setBody($xmlString);

    return;
}