Merge pull request #10 from Abramov0Alexandr/feature

Feature

products/admin.py

@@ -4,5 +4,5 @@
 
 @admin.register(Product)
 class UserAdmin(admin.ModelAdmin):
-    list_display = ('id', 'shop_name', 'product_title', 'seller', 'price', )
+    list_display = ('id', 'shop_name', 'product_title', 'seller', 'price', 'is_active_sale', )
     list_display_links = ('product_title', )

products/models.py

@@ -7,9 +7,15 @@ class Product(models.Model):
     Модель для хранения информации о товаре.
     """
 
+    SALE_STATUS = [
+        (True, 'В продаже'),
+        (False, 'Снят с продажи')
+    ]
+
     product_title = models.CharField(max_length=255, verbose_name='Наименование товара')
     seller = models.ForeignKey(get_user_model(), on_delete=models.PROTECT, related_name='seller', verbose_name='Продавец')
     price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='Цена товара')
+    is_active_sale = models.BooleanField(default=True, choices=SALE_STATUS, verbose_name='Статус товара')
 
     objects = models.Manager
 

products/serializers.py

@@ -15,3 +15,12 @@ class ProductSerializer(serializers.ModelSerializer):
     class Meta:
         model = Product
         fields = '__all__'
+
+
+class ProductSaleStatusSerializers(serializers.ModelSerializer):
+    """
+    Сериализатор используется в контроллере ChangeProductSaleStatus.
+    """
+    class Meta:
+        model = Product
+        fields = ('is_active_sale', )

products/urls.py

@@ -1,13 +1,14 @@
 from django.urls import path
 from .apps import ProductsConfig
-from .views import ProductCreateView, ProductDetailView, ProductListView, ProductDeleteView
+from .views import ProductCreateView, ProductDetailView, ProductListView, ProductDeleteView, ChangeProductSaleStatus
 
 app_name = ProductsConfig.name
 
 
 urlpatterns = [
     path('create/', ProductCreateView.as_view(), name='create-product'),
     path('list/', ProductListView.as_view(), name='products-list'),
+    path('change_status/<int:pk>/', ChangeProductSaleStatus.as_view(), name='change-status'),
     path('detail/<int:pk>/', ProductDetailView.as_view(), name='product-detail'),
     path('delete/<int:pk>/', ProductDeleteView.as_view(), name='product-delete'),
     ]

products/views.py

@@ -1,7 +1,8 @@
-from rest_framework import generics
+from rest_framework import generics, status
+from rest_framework.response import Response
 from products.models import Product
 from products.permissions import IsSeller, IsSuperUser, IsShopOwner
-from products.serializers import ProductSerializer
+from products.serializers import ProductSerializer, ProductSaleStatusSerializers
 
 
 class ProductCreateView(generics.CreateAPIView):
@@ -37,6 +38,48 @@ def get_queryset(self):
         return Product.objects.filter(seller=self.request.user)
 
 
+class ChangeProductSaleStatus(generics.UpdateAPIView):
+    """
+    Контроллер, отвечающий за снятие товара с продажи.
+    """
+
+    queryset = Product.objects.all()
+    serializer_class = ProductSaleStatusSerializers
+    permission_classes = [IsShopOwner | IsSuperUser]
+
+    def get_object(self):
+        product = super().get_object()
+
+        if product.is_active_sale:
+            product.is_active_sale = False
+
+        else:
+            product.is_active_sale = True
+
+        product.save()
+        return product
+
+    def update(self, request, *args, **kwargs):
+        instance = self.get_object()
+        serializer = self.get_serializer(instance, data=request.data, partial=True)
+        serializer.is_valid(raise_exception=True)
+        self.perform_update(serializer)
+
+        if instance.is_active_sale:
+            sale_status_message = 'выведен в продажу'
+        else:
+            sale_status_message = 'снят с продажи'
+
+        response_message = {
+            "Product info": {'sale status': f'{instance.is_active_sale}',
+                             'message': f'{instance.product_title} {sale_status_message}',
+                             'status': status.HTTP_200_OK
+                             }
+        }
+
+        return Response(response_message)
+
+
 class ProductDetailView(generics.RetrieveAPIView):
     """
     Контроллер для просмотра детальной информации о товаре.