public function getDescription(Student $student)
 {
     $nfcTagNumber = $student->getNfcTag() ? $student->getNfcTag()->getNumber() : NULL;
     return "Поповнення рахунку для студента {$student->getFullName()}" . ($nfcTagNumber ? " (за номером картки {$nfcTagNumber})" : "");
 }
 private function processActivationNfcTag(Student $student, SettingDecimal $settingNfcTagActivationFee)
 {
     $student->setTotalLimit(bcsub($student->getTotalLimit(), $settingNfcTagActivationFee->getSettingValue(), 2));
     $student->getNfcTag()->activate();
     $this->_manager->persist($student);
 }