implement registration

common/models/Event.php

@@ -9,14 +9,16 @@ use yii\helpers\ArrayHelper;
 /**
  * This is the model class for table "event".
  *
-// * @property integer $id
+ * @property integer $id
  * @property integer $start
  * @property integer $end
  * @property integer $id_room
  * @property integer $id_trainer
  * @property integer $id_event_type
+ * @property integer $seat_count
  * @property string $created_at
  * @property string $updated_at
+ * @property \common\models\EventType eventType
  */
 class Event extends \yii\db\ActiveRecord
 {
@@ -73,6 +75,9 @@ class Event extends \yii\db\ActiveRecord
         ];
     }
 
+    /**
+     * @throws \Exception
+     */
     public function afterFind()
     {
         parent::afterFind(); // TODO: Change the autogenerated stub
@@ -104,8 +109,31 @@ class Event extends \yii\db\ActiveRecord
         return $this->hasOne(Trainer::className(),['id' => 'id_trainer']);
     }
 
-    public function getRoom(){
+    /**
+     * @return Room|\yii\db\ActiveQuery
+     */
+    public function getRoom() {
         return $this->hasOne(Room::className(),['id' => 'id_room']);
     }
 
+    /**
+     * @return  \common\models\EventRegistration[]|\yii\db\ActiveQuery
+     */
+    public function getEventRegistrations(){
+        return $this->hasMany(EventRegistration::className(),['id_event' => 'id']);
+    }
+
+    /**
+     * @return  \common\models\EventRegistration[]|\yii\db\ActiveQuery
+     */
+    public function getEventRegistrationCount(){
+        return sizeof($this->getEventRegistrations());
+    }
+
+    public function hasFreeSeats(){
+        $registrationCount = $this->getEventRegistrations() ;
+
+        return  $registrationCount < $this->seat_count ;
+    }
+
 }