Carousel mixin

apps/establishment/models.py

@@ -33,7 +33,7 @@ from utils.models import (
     BaseAttributes, FavoritesMixin, FileMixin, GalleryMixin, HasTagsMixin,
     IntermediateGalleryModelMixin, ProjectBaseMixin, TJSONField, TranslatedFieldsMixin,
     TypeDefaultImageMixin, URLImageMixin, default_menu_bool_array, PhoneModelMixin,
-    AwardsModelMixin)
+    AwardsModelMixin, CarouselMixin)
 
 
 # todo: establishment type&subtypes check
@@ -547,8 +547,14 @@ class EstablishmentQuerySet(models.QuerySet):
         return self.prefetch_related('menu_set', 'menu_set__plates', 'back_office_wine')
 
 
-class Establishment(GalleryMixin, ProjectBaseMixin, URLImageMixin,
+class Establishment(GalleryMixin,
-                    TranslatedFieldsMixin, HasTagsMixin, FavoritesMixin, AwardsModelMixin):
+                    ProjectBaseMixin,
+                    URLImageMixin,
+                    TranslatedFieldsMixin,
+                    HasTagsMixin,
+                    FavoritesMixin,
+                    AwardsModelMixin,
+                    CarouselMixin):
     """Establishment model."""
 
     ABANDONED = 0
@@ -717,9 +723,13 @@ class Establishment(GalleryMixin, ProjectBaseMixin, URLImageMixin,
             raise ValidationError('Establishment type of subtype does not match')
         self.establishment_subtypes.add(establishment_subtype)
 
+    @property
+    def last_review(self):
+        return self.reviews.by_status(Review.READY).last()
+
     @property
     def vintage_year(self):
-        last_review = self.reviews.by_status(Review.READY).last()
+        last_review = self.last_review
         if last_review:
             return last_review.vintage
 

apps/establishment/serializers/back.py

@@ -20,6 +20,7 @@ from location.serializers import AddressDetailSerializer, TranslatedField, Addre
 from main import models as main_models
 from main.models import Currency
 from main.serializers import AwardSerializer
+from review.serializers import ReviewBaseSerializer
 from tag.serializers import TagBaseSerializer
 from utils.decorators import with_base_attributes
 from utils.methods import string_random
@@ -211,6 +212,7 @@ class EstablishmentRUDSerializer(model_serializers.EstablishmentBaseSerializer):
     subtypes = model_serializers.EstablishmentSubTypeBaseSerializer(source='establishment_subtypes',
                                                                     read_only=True, many=True)
     type = model_serializers.EstablishmentTypeBaseSerializer(source='establishment_type', read_only=True)
+
     phones = serializers.ListField(
         source='contact_phones',
         allow_null=True,
@@ -219,8 +221,11 @@ class EstablishmentRUDSerializer(model_serializers.EstablishmentBaseSerializer):
         required=False,
         write_only=True,
     )
+
     contact_phones = ContactPhonesSerializer(source='phones', read_only=True, many=True)
 
+    last_review = ReviewBaseSerializer()
+
     class Meta(model_serializers.EstablishmentBaseSerializer.Meta):
         fields = [
             'id',
@@ -249,6 +254,7 @@ class EstablishmentRUDSerializer(model_serializers.EstablishmentBaseSerializer):
             'tags',
             'status',
             'status_display',
+            'last_review',
         ]
 
     def to_representation(self, instance):

apps/news/models.py

@@ -22,7 +22,7 @@ from utils.models import (
     BaseAttributes, FavoritesMixin, GalleryMixin, HasTagsMixin, IntermediateGalleryModelMixin,
     ProjectBaseMixin,
     TJSONField, TranslatedFieldsMixin, TypeDefaultImageMixin,
-)
+    CarouselMixin)
 from utils.querysets import TranslationQuerysetMixin
 
 
@@ -257,8 +257,12 @@ class NewsQuerySet(TranslationQuerysetMixin):
         return self.filter(site__country__code=country_code) if not user.is_superuser else self
 
 
-class News(GalleryMixin, BaseAttributes, TranslatedFieldsMixin, HasTagsMixin,
+class News(GalleryMixin,
-           FavoritesMixin):
+           BaseAttributes,
+           TranslatedFieldsMixin,
+           HasTagsMixin,
+           FavoritesMixin,
+           CarouselMixin):
     """News model."""
 
     STR_FIELD_NAME = 'title'
@@ -366,16 +370,6 @@ class News(GalleryMixin, BaseAttributes, TranslatedFieldsMixin, HasTagsMixin,
         self.duplication_date = timezone.now()
         self.save()
 
-    @property
-    def must_of_the_week(self) -> bool:
-        """Detects whether current item in carousel"""
-        kwargs = {
-            'content_type': ContentType.objects.get_for_model(self),
-            'object_id': self.pk,
-            'country': self.country,
-        }
-        return Carousel.objects.filter(**kwargs).exists()
-
     @property
     def publication_datetime(self):
         """Represents datetime object combined from `publication_date` & `publication_time` fields"""

apps/utils/models.py

@@ -4,6 +4,7 @@ from os.path import exists
 
 from django.conf import settings
 from django.contrib.auth.tokens import PasswordResetTokenGenerator
+from django.contrib.contenttypes.models import ContentType
 from django.contrib.gis.db import models
 from django.contrib.postgres.aggregates import ArrayAgg
 from django.contrib.postgres.fields import JSONField
@@ -537,3 +538,18 @@ class AwardsModelMixin:
 
         if hasattr(self, 'awards'):
             self.awards.remove(award)
+
+
+class CarouselMixin:
+    @property
+    def must_of_the_week(self) -> bool:
+        """Detects whether current item in carousel"""
+        from main.models import Carousel
+
+        if hasattr(self, 'pk') and hasattr(self, 'country'):
+            kwargs = {
+                'content_type': ContentType.objects.get_for_model(self),
+                'object_id': self.pk,
+                'country': self.country,
+            }
+            return Carousel.objects.filter(**kwargs).exists()