public function cancelRequestAssignment()
{
if (Request::ajax()) {
$assignment = Assignment::find(new MongoId(Input::get('_id')));
$assignment->state = 'a';
$assignment->body = "";
foreach ($assignment->attachments as $file) {
File::delete(storage_path() . '/assignments/' . $assignment->_id . '/' . $file);
}
File::delete(storage_path() . '/assignments/' . $assignment->_id);
$assignment->attachments = array();
$assignment->save();
return Response::json('00');
}
}
