/**
  * Creates a form to delete a Task entity.
  *
  * @param Task $task The Task entity
  *
  * @return \Symfony\Component\Form\Form The form
  */
 private function createDeleteForm(Task $task)
 {
     return $this->createFormBuilder()->setAction($this->generateUrl('task_delete', array('id' => $task->getId())))->setMethod('DELETE')->getForm();
 }