1. Models 里再添加一个表， 并有外建关联。
from django.db import modelsclass Publisher(models.Model): ???name = models.CharField(max_length=32, verbose_name="Publisher Name", unique=True) ???address = models.CharField(max_length=128, verbose_name="Publisher Address") ???operator = models.ForeignKey("auth.User", on_delete=models.CASCADE) ???def __str__(self): ???????return self.name ???class Meta: ???????verbose_name = "Table Publisher" ???????verbose_name_plural = verbose_name# 新建表class Book(models.Model): ???title = models.CharField(max_length=32, verbose_name="Book Name") ???publisher = models.ForeignKey("Publisher", on_delete=models.CASCADE) ???def __str__(self): ???????return self.title ???class Meta: ???????verbose_name = "Table Book" ???????verbose_name_plural = verbose_name2. serializer 在添加一个序列化， 外建自动关联。 （HyperlinkedModelSerializer)
from rest_framework import serializersfrom helloworld.models import Publisher, Bookclass PublisherSerializer(serializers.ModelSerializer): ???operator = serializers.ReadOnlyField(source="operator.username") ???class Meta: ???????model = Publisher ???????fields = ( ???????????"id", ???????????"name", ???????????"address", ???????????"operator" ???????)class BookSerializer(serializers.HyperlinkedModelSerializer): ???# 这样就不用再对列重新定义了 ???# publisher = serializers.StringForreField(****) ???class Meta: ???????model = Book ???????fields = ( ???????????"id", ???????????"title", ???????????"publisher" ???????)
3. views.py 在对于新表添加 BookList, BookDetail 视图。
class BookList(generics.ListCreateAPIView): ???queryset = Book.objects.all() ???serializer_class = BookSerializer ???permissions_classes = (permissions.IsAuthenticated,)class BookDetail(generics.RetrieveUpdateDestroyAPIView): ???queryset = Book.objects.all() ???serializer_class = BookSerializer ???permissions_classes = (permissions.IsAuthenticated, )
4. urls.py 添加 新的路径
urlpatterns = [ ???path(‘‘, views.api_root), ???path(‘p/‘, views.PublisherList.as_view(), name="publisher-list"), ???path(‘p/<int:pk>/‘, views.PublisherDetail.as_view(), name="publisher-detail"), ???path(‘b/‘, views.BookList.as_view(), name=‘book-list‘), ???path(‘b/<int:pk>/‘, views.BookDetail.as_view(), name="book-detail"),]
Part 2. 自动添加根路径，并且切分urls.py
(1) 在新的 app views 下，添加一个 api_root() 的方法。
from rest_framework.reverse import reversefrom rest_framework.decorators import api_view@api_view(["GET"])def api_root(request): ???return Response({ ???????"publisher": reverse(‘publisher-list‘, request=request), ???????"books": reverse("book-list", request=request) ???})(2) 调整 项目的urls.py, 使用include.
from django.contrib import adminfrom django.urls import path, includeurlpatterns = [ ???path(‘admin/‘, admin.site.urls), ???path(‘api-auth/‘, include(‘rest_framework.urls‘, namespace=‘rest_framework‘)), ???path(‘helloworld/‘, include("helloworld.urls")),](3) 在app 下创建urls.py, 写具体路径。
from django.urls import pathfrom helloworld import viewsurlpatterns = [ ???path(‘‘, views.api_root), ???path(‘p/‘, views.PublisherList.as_view(), name="publisher-list"), ???path(‘p/<int:pk>/‘, views.PublisherDetail.as_view(), name="publisher-detail"), ???path(‘b/‘, views.BookList.as_view(), name=‘book-list‘), ???path(‘b/<int:pk>/‘, views.BookDetail.as_view(), name="book-detail"),]
django rest frame work 初步使用 >> root url 以及表关联
原文地址：https://www.cnblogs.com/shuo-yang0459/p/9514484.html