private function getAttribution(RequestEvent $event)
 {
     $id = $event->getParam('jlm_commerce_bill', array('attribution' => $event->getParam('attribution')));
     return isset($id['attribution']) && $id['attribution'] !== null ? $this->om->getRepository('JLMTransmitterBundle:Attribution')->find($id['attribution']) : null;
 }
 private function getIntervention(RequestEvent $event)
 {
     $id = $event->getParam('jlm_commerce_bill', array('intervention' => $event->getParam('intervention')));
     return isset($id['intervention']) && $id['intervention'] !== null ? $this->om->getRepository('JLMDailyBundle:Intervention')->find($id['intervention']) : null;
 }
 private function getAsk(RequestEvent $event)
 {
     $id = $event->getParam('jlm_commerce_quote', array('ask' => $event->getParam('ask')));
     return isset($id['ask']) && $id['ask'] !== null ? $this->om->getRepository('JLMOfficeBundle:AskQuote')->find($id['ask']) : null;
 }