title: How do I retain the Original Filename After upload in Symfony
body: <p>Users from the backend application can upload files and publish them to the frontend.  Using sfWidgetFormInputFile and sfValidatorFile, I would like to keep the original filename instead of the default functionality of a random string (i.e.  Meaningful_filename.docx instead of a4b25e9f48cfb6268f34b691fc18cd76fefe96b5.docx - numbers can be appended onto duplicate names).  This can be useful in scenarios where the user downloads several files and would not be able to tell them apart from the file name.</p>
  
  <pre><code>$this-&gt;widgetSchema['file_name'] = new sfWidgetFormInputFile(array('label' =&gt; 'File'));
  
  $this-&gt;validatorSchema['file_name'] = new sfValidatorFile(array(
    'required'   =&gt; true,
    'path'       =&gt;     sfConfig::get('sf_upload_dir').DIRECTORY_SEPARATOR.sfConfig::get('app_dir_file_sharing').DIRECTORY_SEPARATOR,
  'mime_types' =&gt; array('application/msword',
                      'application/vnd.ms-word',
                      'application/msword',
                      'application/msword; charset=binary')
  ), array(
      'invalid'    =&gt; 'Invalid file.',
      'required'   =&gt; 'Select a file to upload.',
      'mime_types' =&gt; 'The file must be a supported type.'
  ));
  </code></pre>
  
  <p>Is there native functionality in the sfWidgetFormInputFile widget or is there another solution to this?</p>