（生鲜项目）19. ViewSet实现商品详情页接口

goods.views.py

# RetrieveModelMixin的功能是帮我们完成url的配置, /goods/id, 通过输入id就可以拿到某个商品的详情

class GoodsListViewSet(mixins.ListModelMixin, mixins.RetrieveModelMixin, viewsets.GenericViewSet):

goods.serializers.py

class GoodsImageSerializer(serializers.ModelSerializer):
    class Meta:
        model = GoodsImage
        fields = ("image",)

class GoodsSerializer(serializers.ModelSerializer):
    category = CategorySerializer()  
    images = GoodsImageSerializer(many=True)  # imags字段名不是随便设置的, 见下图
    class Meta:
        model = Goods
        fields = "__all__"