viewsets

viewsets

功能也能常规使用一样，只是方式有点不一样，需要在urls.py里添加限制

屏幕快照 2018-11-19 上午12.23.39.png

viewsets

• ViewSetMixin类里方法
  • as_view
  • initialize_request
  • reverse_action
  • get_extra_actions
  • get_extra_action_url_map
• ViewSet 只继承两个类，没有代码
  • 继承ViewSetMixin
  • 继承APIView
• GenericViewSet 只继承两个类，没有代码
  • 继承ViewSetMixin
  • 继承GenericAPIView
• ReadOnlyModelViewSet 只继承3个类，没有代码
  • 继承GenericViewSet
    • 继承ViewSetMixin
    • 继承GenericAPIView
  • RetrieveModelMixin
  • ListModelMixin
• ModelViewSet
  • 继承GenericViewSet
    • 继承ViewSetMixin
    • 继承GenericAPIView
  • 继承ListModelMixin 查多个
  • 继承RetrieveModelMixin 查
  • 继承UpdateModelMixin 改
  • 继承DestroyModelMixin 删除
  • 继承CreateModelMixin 增

dsf.png

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model.py

from django.db import models


class Book(models.Model):
    b_name = models.CharField(max_length=32)

serializer.py

from rest_framework import serializers

from ViewSetLearn.models import Book


class BookSerializer(serializers.ModelSerializer):

    class Meta:
        model = Book
        fields = ("id", "b_name")

views.py

继承自viewsets.ModelViewSet

from rest_framework import viewsets

from ViewSetLearn.models import Book
from ViewSetLearn.serializers import BookSerializer


class BookViewSet(viewsets.ModelViewSet):

    serializer_class = BookSerializer
    queryset = Book.objects.all()

urls.py

as_views()里没加参数之前

sfsdfsdf3.png

"get": "list"获取所有
"post": "create"创建
"get": "retrieve" 获取单本

from django.conf.urls import url

from ViewSetLearn import views

# 创建书，  获取所有书， 获取单本书
urlpatterns = [
    url(r'^books/$', views.BookViewSet.as_view(
        {
            "get": "list",  # 获取所有
            "post": "create", # 创建
        }
    )),
    url(r'^books/(?P\d+)/', views.BookViewSet.as_view(
        {
            "get": "retrieve", # 获取单本
        }
    )),
]