improve customer timetable

common/models/EventRegistration.php

@@ -83,4 +83,56 @@ class EventRegistration extends \yii\db\ActiveRecord
     public function getCustomerClass(){
         return Customer::class;
     }
+
+    /**
+     * @param EventRegistration $eventRegistration
+     */
+    public static function isActive($eventRegistration){
+        if ( !isset($eventRegistration ) ){
+            return false;
+        }
+        if ( isset($eventRegistration->canceled_at ) ){
+            return false;
+        }
+
+        if ( isset($eventRegistration->deleted_at ) ){
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * @param EventRegistration $eventRegistration
+     */
+    public static function isForCustomer($eventRegistration,$idCustomer){
+        if ( !isset($eventRegistration ) ){
+            return false;
+        }
+        if ( !isset($eventRegistration->id_customer ) ){
+            return false;
+        }
+
+       return $eventRegistration->id_customer == $idCustomer;
+    }
+
+    /**
+     * @param EventRegistration[] $eventRegistrations
+     */
+    public static function filterActive($eventRegistrations){
+        return array_filter($eventRegistrations, EventRegistration::class.'::isActive' );
+    }
+
+    /**
+     * @param EventRegistration[] $eventRegistrations
+     */
+    public static function filterForCustomer($eventRegistrations,$idCustomer){
+        $result = [];
+        foreach ($eventRegistrations as $eventRegistration){
+            if ( EventRegistration::isForCustomer($eventRegistration,$idCustomer)){
+                $result[] = $eventRegistration;
+            }
+        }
+        return $result;
+    }
 }