Drf Viewset和router方式实现api接口和url配

• 学习须知

  
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• 序列化器

from rest_framework import serializers
from . import models

class CategorySerializer(serializers.ModelSerializer):

    class Meta:
        model = models.GoodsCategory
        fields = "__all__"

class GoodsSerializer(serializers.ModelSerializer):

    # 重写外键，序列化输出
    category = CategorySerializer()
    class Meta:
        model = models.Goods
        fields = "__all__"

• Viewset 视图

from rest_framework import viewsets
from rest_framework.pagination import PageNumberPagination


from . import models
from .serializers import GoodsSerializer


class GoodsPagination(PageNumberPagination):
    page_size = 2
    max_page_size = 100
    # 自动返回第n页
    page_query_param = "p"
    # 自动返回n页
    page_size_query_param = 'page_size'


class GoodsList(viewsets.ModelViewSet):

    """
    This viewset automatically provides `list`, `create`, `retrieve`,
    `update` and `destroy` actions.

    Additionally we also provide an extra `highlight` action.
    """

    # queryset = models.Goods.objects.get_queryset()
    serializer_class = GoodsSerializer
    pagination_class = GoodsPagination

    def get_queryset(self):
        return models.Goods.objects.get_queryset().filter(market_price__gt=50)

• app路由

from . import views
from rest_framework.routers import DefaultRouter

urlpatterns = [

]

router = DefaultRouter()
# 这个basename 很重要 ，`basename`参数未指定，并且无法自动确定视图集中的名称，因为它没有`.queryset`属性。
router.register(r'goods',views.GoodsList,basename='good')

urlpatterns += router.urls

• 展示

  
  image.png