implement registration in backend

common/models/Ticket.php

@@ -2,10 +2,12 @@
 
 namespace common\models;
 
+use common\manager\EventRegistrationManager;
 use Yii;
 use yii\db\Query;
 use yii\db\Expression;
 use common\components\Helper;
+use yii\web\HttpException;
 
 /** @noinspection PhpUnnecessaryFullyQualifiedNameInspection */
 
@@ -33,6 +35,8 @@ use common\components\Helper;
  * @property int id_contract
  * @property integer $original_price
  * @property string $original_end;
+ * @property integer $reservation_count
+ * @property integer $max_reservation_count
  *
  * @property \common\models\Card card
  * @property \common\models\Ticket transfer
@@ -441,7 +445,31 @@ class Ticket  extends \common\models\BaseFitnessActiveRecord
 	    	}
     	}
     }
-    
+
+    public function hasOpenReservationCount(){
+        return $this->reservation_count < $this->max_reservation_count;
+    }
+
+    /**
+     * @param $count
+     * @throws HttpException
+     */
+    public function consumeReservationCount($count){
+        $newReservationCount = $this->reservation_count + $count;
+        if ( $newReservationCount > $this->max_reservation_count ){
+            throw new HttpException(406,"Max ticket seat count exceeded",EventRegistrationManager::MAX_SEAT_COUNT_EXCEEDED);
+        }
+        $this->reservation_count = $newReservationCount;
+    }
+
+    public function restoreReservationCount($usagesToRestore){
+        $this->reservation_count = $this->reservation_count - $usagesToRestore;
+        if ( $this->usage_count < 0 ){
+            $this->usage_count = 0;
+        }
+    }
+
+
     public function afterSave($insert, $changedAttributes) {
     	Card::updateCardFlagTicket($this->id_card);;
     }