Element_OphTrOperationbooking_Operation::getDueLetter PHP Méthode

    public function getDueLetter()
    {
        $lastletter = $this->getLastLetter();
        if (!$this->getWaitingListStatus()) {
            // if getwaitingliststatus returns null, we're white
            return $lastletter;
            // no new letter is due, so we should print the last one
        }
        if ($this->getWaitingListStatus() == self::STATUS_PURPLE) {
            return self::LETTER_INVITE;
        } elseif ($this->getWaitingListStatus() == self::STATUS_GREEN1) {
            return self::LETTER_REMINDER_1;
        } elseif ($this->getWaitingListStatus() == self::STATUS_GREEN2) {
            return self::LETTER_REMINDER_2;
        } elseif ($this->getWaitingListStatus() == self::STATUS_ORANGE) {
            return self::LETTER_GP;
        } elseif ($this->getWaitingListStatus() == self::STATUS_RED) {
            // this used to return null, but now returning GP so that gp letters can be re-printed if necessary
            return self::LETTER_GP;
        } else {
            return;
            // possibly this should return $lastletter ?
        }
    }

 /**
  * Print the next letter for an operation.
  *
  * @param OEPDFPrint                              $pdf_print
  * @param Element_OphTrOperationbooking_Operation $operation
  * @param bool                                    $auto_confirm
  *
  * @throws CException
  */
 protected function printLetter($operation, $auto_confirm = false)
 {
     $patient = $operation->event->episode->patient;
     $letter_status = $operation->getDueLetter();
     if ($letter_status === null && $operation->getLastLetter() == Element_OphTrOperationbooking_Operation::LETTER_GP) {
         $letter_status = Element_OphTrOperationbooking_Operation::LETTER_GP;
     }
     $letter_templates = array(Element_OphTrOperationbooking_Operation::LETTER_INVITE => 'invitation_letter', Element_OphTrOperationbooking_Operation::LETTER_REMINDER_1 => 'reminder_letter', Element_OphTrOperationbooking_Operation::LETTER_REMINDER_2 => 'reminder_letter', Element_OphTrOperationbooking_Operation::LETTER_GP => 'gp_letter', Element_OphTrOperationbooking_Operation::LETTER_REMOVAL => false);
     $letter_template = isset($letter_templates[$letter_status]) ? $letter_templates[$letter_status] : false;
     if ($letter_template) {
         $firm = $operation->event->episode->firm;
         $site = $operation->site;
         $waitingListContact = $operation->waitingListContact;
         // Don't print GP letter if practice address is not defined
         if ($letter_status != Element_OphTrOperationbooking_Operation::LETTER_GP || $patient->practice && $patient->practice->contact->address) {
             Yii::log('Printing letter: ' . $letter_template, 'trace');
             $html = call_user_func(array($this, 'print_' . $letter_template), $operation);
             if ($auto_confirm) {
                 $operation->confirmLetterPrinted();
             }
             return $html;
         } else {
             Yii::log('Patient has no practice address, printing letter supressed: ' . $patient->id, 'trace');
         }
     } elseif ($letter_status === null) {
         Yii::log('No letter is due: ' . $patient->id, 'trace');
     } else {
         throw new CException('Undefined letter status');
     }
 }