/**
  * This first parameter is to be updated be parameter two
  */
 protected function updateSchedule(\Club\TeamBundle\Entity\Schedule $schedule, \Club\TeamBundle\Entity\Schedule $original)
 {
     if ($schedule == $original) {
         return;
     }
     $t1_first = clone $original->getFirstDate();
     $t1_first->setDate(1970, 1, 1);
     $t2_first = clone $schedule->getFirstDate();
     $t2_first->setDate(1970, 1, 1);
     $t1_end = clone $original->getEndDate();
     $t1_end->setDate(1970, 1, 1);
     $t2_end = clone $schedule->getEndDate();
     $t2_end->setDate(1970, 1, 1);
     $diff_first = $t1_first->diff($t2_first);
     $diff_end = $t1_end->diff($t2_end);
     $em = $this->getDoctrine()->getManager();
     $schedule->resetInstructors();
     $schedule->resetFields();
     $schedule->setDescription($original->getDescription());
     $schedule->setFirstDate(new \DateTime($schedule->getFirstDate()->sub($diff_first)->format('Y-m-d H:i:s')));
     $schedule->setEndDate(new \DateTime($schedule->getEndDate()->sub($diff_end)->format('Y-m-d H:i:s')));
     $schedule->setLevel($original->getLevel());
     $schedule->setLocation($original->getLocation());
     $schedule->setMaxAttend($original->getMaxAttend());
     $schedule->setPenalty($original->getPenalty());
     foreach ($original->getInstructors() as $instructor) {
         $schedule->addInstructor($instructor);
     }
     foreach ($original->getFields() as $field) {
         $schedule->addField($field);
     }
     $em->persist($schedule);
 }