added city gallery

apps/location/migrations/0030_auto_20191120_1010.py

@@ -0,0 +1,34 @@
+# Generated by Django 2.2.7 on 2019-11-20 10:10
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('gallery', '0006_merge_20191027_1758'),
+        ('location', '0029_merge_20191119_1438'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='CityGallery',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('is_main', models.BooleanField(default=False, verbose_name='Is the main image')),
+                ('city', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='city_gallery', to='location.City', verbose_name='city')),
+                ('image', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='city_gallery', to='gallery.Image', verbose_name='image')),
+            ],
+            options={
+                'verbose_name': 'city gallery',
+                'verbose_name_plural': 'city galleries',
+                'unique_together': {('city', 'is_main'), ('city', 'image')},
+            },
+        ),
+        migrations.AddField(
+            model_name='city',
+            name='gallery',
+            field=models.ManyToManyField(through='location.CityGallery', to='gallery.Image'),
+        ),
+    ]

apps/location/models.py

@@ -8,7 +8,8 @@ from django.utils.translation import gettext_lazy as _
 
 from translation.models import Language
 from utils.models import (ProjectBaseMixin, SVGImageMixin, TJSONField,
-                          TranslatedFieldsMixin, get_current_locale)
+                          TranslatedFieldsMixin, get_current_locale,
+                          IntermediateGalleryModelMixin, GalleryModelMixin)
 
 
 class CountryQuerySet(models.QuerySet):
@@ -96,9 +97,8 @@ class CityQuerySet(models.QuerySet):
         return self.filter(country__code=code)
 
 
-class City(models.Model):
+class City(GalleryModelMixin):
     """Region model."""
-
     name = models.CharField(_('name'), max_length=250)
     code = models.CharField(_('code'), max_length=250)
     region = models.ForeignKey(
@@ -111,6 +111,8 @@ class City(models.Model):
 
     is_island = models.BooleanField(_('is island'), default=False)
     old_id = models.IntegerField(null=True, blank=True, default=None)
+    gallery = models.ManyToManyField('gallery.Image', through='CityGallery')
+
     objects = CityQuerySet.as_manager()
 
     class Meta:
@@ -121,6 +123,24 @@ class City(models.Model):
         return self.name
 
 
+class CityGallery(IntermediateGalleryModelMixin):
+    """Gallery for model City."""
+    city = models.ForeignKey(City, null=True,
+                             related_name='city_gallery',
+                             on_delete=models.CASCADE,
+                             verbose_name=_('city'))
+    image = models.ForeignKey('gallery.Image', null=True,
+                              related_name='city_gallery',
+                              on_delete=models.CASCADE,
+                              verbose_name=_('image'))
+
+    class Meta:
+        """CityGallery meta class."""
+        verbose_name = _('city gallery')
+        verbose_name_plural = _('city galleries')
+        unique_together = (('city', 'is_main'), ('city', 'image'))
+
+
 class Address(models.Model):
     """Address model."""
     city = models.ForeignKey(City, verbose_name=_('city'), on_delete=models.CASCADE)

apps/location/serializers/back.py

@@ -1,5 +1,8 @@
 from location import models
 from location.serializers import common
+from rest_framework import serializers
+from gallery.models import Image
+from django.utils.translation import gettext_lazy as _
 
 
 class AddressCreateSerializer(common.AddressDetailSerializer):
@@ -18,3 +21,45 @@ class CountryBackSerializer(common.CountrySerializer):
             'name',
             'country_id'
         ]
+
+
+class CityGallerySerializer(serializers.ModelSerializer):
+    """Serializer class for model CityGallery."""
+
+    class Meta:
+        """Meta class"""
+
+        model = models.CityGallery
+        fields = [
+            'id',
+            'is_main',
+        ]
+
+    def get_request_kwargs(self):
+        """Get url kwargs from request."""
+        return self.context.get('request').parser_context.get('kwargs')
+
+    def validate(self, attrs):
+        """Override validate method."""
+        city_pk = self.get_request_kwargs().get('pk')
+        image_id = self.get_request_kwargs().get('image_id')
+
+        city_qs = models.City.objects.filter(pk=city_pk)
+        image_qs = Image.objects.filter(id=image_id)
+
+        if not city_qs.exists():
+            raise serializers.ValidationError({'detail': _('City not found')})
+
+        if not image_qs.exists():
+            raise serializers.ValidationError({'detail': _('Image not found')})
+
+        city = city_qs.first()
+        image = image_qs.first()
+
+        if image in city.gallery.all():
+            raise serializers.ValidationError({'detail': _('Image is already added.')})
+
+        attrs['city'] = city
+        attrs['image'] = image
+
+        return attrs

apps/location/urls/back.py

@@ -11,6 +11,11 @@ urlpatterns = [
 
     path('cities/', views.CityListCreateView.as_view(), name='city-list-create'),
     path('cities/<int:pk>/', views.CityRUDView.as_view(), name='city-retrieve'),
+    path('cities/<int:pk>/gallery/', views.CityGalleryListView.as_view(),
+         name='gallery-list'),
+    path('cities/<int:pk>/gallery/<int:image_id>/',
+         views.CityGalleryCreateDestroyView.as_view(),
+         name='gallery-create-destroy'),
 
     path('countries/', views.CountryListCreateView.as_view(), name='country-list-create'),
     path('countries/<int:pk>/', views.CountryRUDView.as_view(), name='country-retrieve'),

apps/location/views/back.py

@@ -4,7 +4,11 @@ from rest_framework import generics
 from location import models, serializers
 from location.views import common
 from utils.permissions import IsCountryAdmin
+from utils.views import CreateDestroyGalleryViewMixin
 from rest_framework.permissions import IsAuthenticatedOrReadOnly
+from django.shortcuts import get_object_or_404
+from utils.serializers import ImageBaseSerializer
+
 # Address
 
 
@@ -35,6 +39,48 @@ class CityRUDView(common.CityViewMixin, generics.RetrieveUpdateDestroyAPIView):
     permission_classes = [IsAuthenticatedOrReadOnly|IsCountryAdmin]
 
 
+class CityGalleryCreateDestroyView(common.CityViewMixin,
+                                   CreateDestroyGalleryViewMixin):
+    """Resource for a create gallery for product for back-office users."""
+    serializer_class = serializers.CityGallerySerializer
+    permission_classes = [IsAuthenticatedOrReadOnly|IsCountryAdmin]
+
+    def get_object(self):
+        """
+        Returns the object the view is displaying.
+        """
+        city_qs = self.filter_queryset(self.get_queryset())
+
+        city = get_object_or_404(city_qs, pk=self.kwargs['pk'])
+        gallery = get_object_or_404(city.city_gallery, image_id=self.kwargs['image_id'])
+
+        # May raise a permission denied
+        self.check_object_permissions(self.request, gallery)
+
+        return gallery
+
+
+class CityGalleryListView(common.CityViewMixin,
+                          generics.ListAPIView):
+    """Resource for returning gallery for product for back-office users."""
+    serializer_class = ImageBaseSerializer
+    permission_classes = [IsAuthenticatedOrReadOnly|IsCountryAdmin]
+
+    def get_object(self):
+        """Override get_object method."""
+        qs = super(CityGalleryListView, self).get_queryset()
+        city = get_object_or_404(qs, pk=self.kwargs['pk'])
+
+        # May raise a permission denied
+        self.check_object_permissions(self.request, city)
+
+        return city
+
+    def get_queryset(self):
+        """Override get_queryset method."""
+        return self.get_object().crop_gallery
+
+
 # Region
 class RegionListCreateView(common.RegionViewMixin, generics.ListCreateAPIView):
     """Create view for model Region"""

apps/product/models.py

@@ -365,7 +365,7 @@ class ProductStandard(models.Model):
 
 
 class ProductGallery(IntermediateGalleryModelMixin):
-
+    """Gallery for model Product."""
     product = models.ForeignKey(Product, null=True,
                                 related_name='product_gallery',
                                 on_delete=models.CASCADE,