Symfony-Zone

Hi all,times are changing. For a lot of my projects I use a JavaScript only Web UI based on toolkits like ExtJs or qooxdoo. These applications are composed of a lot JS-Files located in the web/js folder of the Symfony-project.One of my problems i always had was that I had no chance to use Symfony Helper-Functions in those files. Especially the I18N and URL-Helper functions were missed badly.Over the time I came up with a solution the works great for me. Maybe it is usefull for you too…Add a new route

To use the symfony helpers in a javascript file you need to process them like a symfony view template. Therefore i just created a new route in the routing.yml in the config folder of the application.

dynamic_javascript:

  url: /djs/:filename.js

  param: { module: script, action: load }

ModuleAfter that just create the module that we specified in the routing table

$> symfony generate:module appname script

The action.class.php of this module contains the following action implementation

public function executeLoad($request) {

  $this->setLayout(false);

  $this->getResponse()->setContent('text/javascript');

  $this->setTemplate($request->getParameter('filename'));

  return ".js".chr(0);

}

As you can see there is little code needed. Just to set the content type of the response to Javascript and for using a template that is called “filename.js”.

The line return “.js”.chr(0);All you need to do is to save the JavaScript-Files in the templates folder of the script action. In your HTML/Template files you have to reference them like this

<?php use_javascript('/djs/mainapp.js'); ?>

In this JavaScript Files you can use the Helper-Functions of symfony to localize the scripts texts or to set URLs via url_for. BTW: You can use this “trick” in other files too, not only JavaScript.

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