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6.2 category 后台url配置

goods.views.py

from rest_framework import mixinsfrom rest_framework import viewsetsfrom .models import Goods,GoodsCategoryfrom .serializer import GoodsSerialize,GoodsCategorySerializeclass GoodsCategoryViewSet(mixins.ListModelMixin,mixins.RetrieveModelMixin, viewsets.GenericViewSet):    '''    url:goods/category/    GoodsCategory views    商品分类页表    '''    queryset = GoodsCategory.objects.all()    serializer_class = GoodsCategorySerialize

goods.urls.py

from django.urls import path,re_path,includefrom rest_framework.routers import DefaultRouterfrom .views import GoodsListViewSet,GoodsCategoryViewSetrouter = DefaultRouter()router.register(r'category',GoodsCategoryViewSet,base_name='category')urlpatterns = [    path('',include(router.urls))]

goods.serializer.py

from rest_framework import serializersfrom .models import Goods,GoodsCategoryclass GoodsCategorySerialize3(serializers.ModelSerializer):    class Meta:        model = GoodsCategory        fields = "__all__"#和forms.py 的功能一样，但是serializer可以不指明字段，直接写all，即使用全部字段class GoodsCategorySerialize2(serializers.ModelSerializer):    '''    arent_category = models.ForeignKey('self', verbose_name='父类目录级'related_name='sub_cat')    sub_cat 是在modes.py中GoodsCategory中定义字段时就定义好了的    '''    sub_cat = GoodsCategorySerialize3(many=True)#    class Meta:        model = GoodsCategory        fields = "__all__"#和forms.py 的功能一样，但是serializer可以不指明字段，直接写all，即使用全部字段class GoodsCategorySerialize(serializers.ModelSerializer):    sub_cat = GoodsCategorySerialize2(many=True)    class Meta:        model = GoodsCategory        fields = "__all__"#和forms.py 的功能一样，但是serializer可以不指明字段，直接写all，即使用全部字段

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