added pictures route && removed partners pictures duplicates

apps/partner/serializers/back.py

@@ -36,3 +36,12 @@ class BackPartnerSerializer(serializers.ModelSerializer):
         extra_kwargs = {
             'type': {'write_only': True},
         }
+
+
+class PartnerPicturesSerializer(serializers.ModelSerializer):
+
+    class Meta:
+        model = Partner
+        fields = (
+            'images',
+        )

apps/partner/urls/back.py

@@ -8,6 +8,7 @@ app_name = 'partner'
 urlpatterns = [
     path('', views.PartnerLstView.as_view(), name='partner-list-create'),
     path('<int:id>/', views.PartnerRUDView.as_view(), name='partner-rud'),
+    path('pictures/<int:id>/', views.PartnerPicturesListView.as_view(), name='partner-pictures-get'),
     # path('bind/<int:partner_id>/<int:establishment_id>/', views.BindPartnerToEstablishmentView.as_view(),
     #      name='bind-partner-to-establishment'),
     # path('unbind/<int:partner_id>/<int:establishment_id>/', views.BindPartnerToEstablishmentView.as_view(),

apps/partner/views/back.py

@@ -27,6 +27,13 @@ class PartnerRUDView(generics.RetrieveUpdateDestroyAPIView):
     lookup_field = 'id'
 
 
+class PartnerPicturesListView(generics.RetrieveAPIView):
+    lookup_field = 'id'
+    serializer_class = serializers.PartnerPicturesSerializer
+    queryset = Partner.objects.with_base_related()
+    # permission_classes = [permissions.IsAdminUser | IsEstablishmentManager]
+    permission_classes = (permissions.AllowAny, )
+
 # class BindPartnerToEstablishmentView(generics.GenericAPIView):
 #     pass
 

apps/transfer/serializers/partner.py

@@ -61,7 +61,7 @@ class PartnerSerializer(serializers.Serializer):
         obj.establishment.add(establishment)
         if is_created:
             obj.images = [image]
-        else:
+        elif image not in obj.images:
             obj.images.append(image)
         obj.save()