is_drinks_included and last_update in serializer

apps/establishment/serializers/back.py

@@ -533,6 +533,7 @@ class MenuDishesSerializer(ProjectModelSerializer):
     schedule = ScheduleRUDSerializer(many=True, allow_null=True)
     plates = _PlateSerializer(read_only=True, many=True, source='plate_set')
     category_translated = serializers.CharField(read_only=True)
+    last_update = serializers.DateTimeField(source='created')
 
     class Meta:
         model = models.Menu
@@ -541,6 +542,8 @@ class MenuDishesSerializer(ProjectModelSerializer):
             'category',
             'category_translated',
             'establishment',
+            'is_drinks_included',
             'schedule',
             'plates',
+            'last_update',
         ]