title: How to get full url from django request
body: <p>Is there a better way to get the full url in django than doing the following:</p>
  
  <pre><code>url = request.META['HTTP_HOST']
      + request.META['PATH_INFO']
      + request.META['QUERY_STRING']
  </code></pre>
  
  <p>Is there something like <code>request.META['URL']</code> ?</p>