title: Symfony - get module URL-key
body: <p>I'm using a common set of javascript across several Symfony modules.  I'd like to output the current module url-key as a javascript variable, so the javascript can use it to construct urls for various AJAX calls.  I can't find where to get it, though.</p>
  
  <pre><code>$sf_context-&gt;getModuleName();
  </code></pre>
  
  <p>returns the module name, but not how it appears in the URL.  I get that I could parse the module name from window.location, but that not only seems a bit crude, but I will soon have a case where I construct a url to a different module than the one that generated the current page.</p>
  
  <p>How does one get the URL-key for the current (or given) module?  Surely that mapping exists for the front controller.</p>