must_of_the_week behaviour for update. public_mark has been returned

apps/establishment/serializers/back.py

@@ -232,6 +232,8 @@ class EstablishmentRUDSerializer(model_serializers.EstablishmentBaseSerializer):
 
     last_review = ReviewBaseSerializer(read_only=True)
 
+    must_of_the_week = serializers.BooleanField(required=False, )
+
     class Meta(model_serializers.EstablishmentBaseSerializer.Meta):
         fields = [
             'id',
@@ -264,6 +266,7 @@ class EstablishmentRUDSerializer(model_serializers.EstablishmentBaseSerializer):
             'must_of_the_week',
             'last_update_by_gm',
             'last_update_by_manager',
+            'public_mark',
         ]
 
     def to_representation(self, instance):

apps/utils/models.py

@@ -542,22 +542,42 @@ class AwardsModelMixin:
 
 
 class CarouselMixin:
+    def __must_of_the_week_info_from_self(self) -> dict:
+        from main.models import Country
+
+        return {
+            'content_type': ContentType.objects.get_for_model(self),
+            'object_id': getattr(self, 'pk'),
+            'country': getattr(self, 'country', get_object_or_404(Country, id=getattr(self, 'country_id', 0))),
+        }
+
+    def __must_of_the_week_has_fields(self) -> bool:
+        return hasattr(self, 'pk') and (hasattr(self, 'country') or hasattr(self, 'country_id'))
+
     @property
     def must_of_the_week(self) -> bool:
+        from main import models as main_models
+
         """Detects whether current item in carousel"""
-        from main.models import Carousel
+        if self.__must_of_the_week_has_fields():
-
+            kwargs = self.__must_of_the_week_info_from_self()
-        if hasattr(self, 'pk') and (hasattr(self, 'country') or hasattr(self, 'country_id')):
+            return main_models.Carousel.objects.filter(**kwargs).exists()
-            kwargs = {
-                'content_type': ContentType.objects.get_for_model(self),
-                'object_id': self.pk,
-                'country': getattr(self, 'country', getattr(self, 'country_id', None)),
-            }
-
-            return Carousel.objects.filter(**kwargs).exists()
 
         return False
 
+    @must_of_the_week.setter
+    def must_of_the_week(self, status: bool):
+        from main import models as main_models
+
+        """Update field by status"""
+        if status != self.must_of_the_week and self.__must_of_the_week_has_fields():
+            carousel, _ = main_models.Carousel.objects.get_or_create(
+                **self.__must_of_the_week_info_from_self()
+            )
+
+            if not status and isinstance(carousel, main_models.Carousel):
+                carousel.delete()
+
 
 class UpdateByMixin(models.Model):
     """Modify by mixin"""