remove must_of_the_week field

apps/main/models.py

@@ -210,25 +210,6 @@ class CarouselQuerySet(models.QuerySet):
         """Filter collection by country code."""
         return self.filter(country__code=code)
 
-    def create_or_destroy(self, instance_to_bind, country):
-        """Creates or destroys Carousel instance depending on instance fields"""
-        toggle = True
-        kwargs = {
-            'content_type': ContentType.objects.get_for_model(instance_to_bind),
-            'object_id': instance_to_bind.pk,
-            'country': country,
-        }
-        if toggle is None:
-            return
-        elif toggle:
-            kwargs.update({
-                'is_parse': True,
-                'active': True,
-            })
-            self.create(**kwargs)
-        else:
-            self.filter(**kwargs).delete()
-
 
 class Carousel(models.Model):
     """Carousel model."""

apps/news/migrations/0048_remove_news_must_of_the_week.py

@@ -0,0 +1,17 @@
+# Generated by Django 2.2.7 on 2019-12-19 13:47
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('news', '0047_remove_news_start'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='news',
+            name='must_of_the_week',
+        ),
+    ]

apps/news/models.py

@@ -230,7 +230,6 @@ class News(GalleryModelMixin, BaseAttributes, TranslatedFieldsMixin, HasTagsMixi
                                             verbose_name=_('Duplication datetime'))
     duplication_uuid = models.UUIDField(default=uuid.uuid4, editable=True, unique=False,
                                         verbose_name=_('Field to detect doubles'))
-    must_of_the_week = models.BooleanField(default=False, verbose_name=_('Show in the carousel'))
     objects = NewsQuerySet.as_manager()
 
     class Meta:
@@ -251,6 +250,11 @@ class News(GalleryModelMixin, BaseAttributes, TranslatedFieldsMixin, HasTagsMixi
         self.duplication_date = timezone.now()
         self.save()
 
+    @property
+    def must_of_the_week(self) -> bool:
+        """Detects whether current item in carousel"""
+        return False
+
     @property
     def publication_datetime(self):
         """Represents datetime object combined from `publication_date` & `publication_time` fields"""

apps/news/serializers.py

@@ -193,7 +193,7 @@ class NewsBackOfficeBaseSerializer(NewsBaseSerializer):
         extra_kwargs = {
             'duplication_date': {'read_only': True},
             'locale_to_description_is_active':  {'allow_null': False},
-            'must_of_the_week':  {'allow_null': False},
+            'must_of_the_week':  {'read_only': True},
         }
 
     def create(self, validated_data):
@@ -203,9 +203,7 @@ class NewsBackOfficeBaseSerializer(NewsBaseSerializer):
                     slugs__values__contains=list(slugs.values())
             ).exists():
                 raise serializers.ValidationError({'slugs': _('News with this slug already exists.')})
-        instance = super().create(validated_data)
-        Carousel.objects.create_or_destroy(instance, instance.country)
-        return instance
+        return super().create(validated_data)
 
     def update(self, instance, validated_data):
         slugs = validated_data.get('slugs')
@@ -214,10 +212,7 @@ class NewsBackOfficeBaseSerializer(NewsBaseSerializer):
                     slugs__values__contains=list(slugs.values())
             ).exclude(pk=instance.pk).exists():
                 raise serializers.ValidationError({'slugs': _('News with this slug already exists.')})
-        ret = super().update(instance, validated_data)
-        if ret.must_of_the_week != instance.must_of_the_week:
-            Carousel.objects.create_or_destroy(instance, instance.address.city.country)
-        return ret
+        return super().update(instance, validated_data)
 
 
 class NewsBackOfficeDuplicationInfoSerializer(serializers.ModelSerializer):