django rest 框架中产品的详细视图集

Question

我只需要根据给定的 slug 在我的 VeiwSet 中获取一个产品对象，我查看了文档，但找不到解决此问题的任何方法。我还需要从 url 路径获取 slug，但我也不知道该怎么做。显然下面的代码不起作用。

product/serializers.py

from rest_framework import serializers
from .models import Product

class ProductSerializer(serializers.ModelSerializer):
    image = serializers.ImageField(required=True)
    class Meta:
        model = Product
        fields = ("name", "description", "slug", "id", "price", "stock", "image", "category")

product/views.py

from django.http.response import JsonResponse
from rest_framework import serializers, viewsets
from rest_framework.response import Response
from django.http import JsonResponse
from .serializers import ProductSerializer
from .models import Product

class ProductViewSet(viewsets.ModelViewSet):
    queryset = Product.objects.all().order_by('name')
    serializer_class = ProductSerializer

class ProductDetailViewSet(viewsets.ViewSet, slug):
    queryset = Product.objects.filter(slug=slug)
    serializer_class = ProductSerializer

product/urls.py

from rest_framework import routers, urlpatterns
from django.urls import path, include
from .views import ProductViewSet, ProductDetailiewSet

router = routers.DefaultRouter()
router.register(r'', ProductViewSet)


urlpatterns = [
    path('<str:slug>/',),
    path('', include(router.urls))
]

Answer 1

ViewSets 允许您将 ListView 和 DetailView 合并到一个视图中。所以你不需要两个不同的视图来处理这两个动作。

现在，如果你想在 url 中使用 slug 而不是默认情况下的 id，你只需在序列化程序和视图中指定 lookup_field，如下所示：

serializers.py

class ProductSerializer(serializers.ModelSerializer):
    image = serializers.ImageField(required=True)
    class Meta:
        model = Product
        fields = ("name", "description", "slug", "id", "price", "stock", "image", "category")
        lookup_field = 'slug'
        extra_kwargs = {
            'url': {'lookup_field': 'slug'}
        }

views.py

class ProductViewSet(viewsets.ModelViewSet):
    queryset = Product.objects.all().order_by('name')
    serializer_class = ProductSerializer
    lookup_field = 'slug'

urls.py

router = routers.DefaultRouter()
router.register(r'', ProductViewSet)

urlpatterns = [
    url(r'', include(router.urls)),
]

现在您可以查询 http://localhost:8000/ 的 产品列表 和 http://localhost:8000/product_slug 的 产品详细信息 和 product_slug 作为鼻涕虫。更多关于 Django ViewSets and Routers

django rest 框架中产品的详细视图集

Detail viewset for product in django rest framework

python

django

django-rest-framework

django-rest-viewsets