JsModuleActionFilter.class.php

<?php

class JsModuleActionFilter extends sfFilter
{
    public function execute($filterChain)
    {
        if ($this->isFirstCall()) {
            $params = $this->getContext()->getRequest()->getRequestParameters();
            
            //gets a module action specific js file
            $this->getContext()->getResponse()->addJavascript('modules/' . $params['module'] . '_' . $params['action'] , 'last');
        }
        
        $filterChain->execute();
    }
}

?>