python - Django: 添加外键后 'Method\"PATCH\"not allowed.' 405

Question

我正在为大学做一个项目，它决定在 Django 中制作它来学习新东西。我开始后悔了……我希望你能帮忙。

我正在创建一个简单的 API，以前表现良好，但将相关类添加到模型中后，它只允许我执行 GET 和 POST 操作，我不知道为什么会发生这种情况以及如何解决 -我已在 View 集中指定了 http 方法。我也想执行 PUT、PATCH 和 DELETE 操作。

models.py:

from django.db import models

class Author(models.Model):
    id = models.AutoField(primary_key=True)
    first_name = models.CharField(max_length=60,blank=True,null=True)
    last_name = models.CharField(max_length=60,blank=True,null=True)
    description = models.CharField(max_length=1000,blank=True,null=True)

    def __str__(self):
        return "%s %s" % (self.first_name, self.last_name)

class Quote(models.Model):
    id = models.AutoField(primary_key=True)
    content = models.CharField(max_length=1000)
    author = models.ForeignKey(Author, on_delete=models.SET_NULL,related_name='quotes',null=True)
    source = models.CharField(max_length=60,blank=True,null=True)
    context = models.CharField(max_length=1000,blank=True,null=True)
    year = models.IntegerField(blank=True,null=True)

    def __str__(self):
        return self.content

序列化器.py:

from rest_framework import serializers

from .models import Quote, Author

class QuoteSerializer(serializers.ModelSerializer):

    class Meta:
        model = Quote
        fields = ('id','content','author','source','year','context')
        lookup_field = 'author'

class AuthorSerializer(serializers.HyperlinkedModelSerializer):
    quotes = QuoteSerializer(many=True, read_only=True)

    class Meta:
        model = Author
        fields = ('id','first_name','last_name','description','quotes')

urls.py:

from django.urls import include, path
from rest_framework import routers
from . import views

router = routers.DefaultRouter()
router.register(r'authors', views.AuthorViewSet,basename='authors')
router.register(r'quotes', views.QuoteViewSet,basename='quotes')

urlpatterns = [
    path('', include(router.urls)),
    path('api-auth/', include('rest_framework.urls', namespace='rest_framework'))
]

views.py:

from rest_framework import viewsets
from rest_framework.exceptions import NotFound
from rest_framework.response import Response
from rest_framework import status

from .serializers import QuoteSerializer, AuthorSerializer
from .models import Quote, Author

class AuthorViewSet(viewsets.ModelViewSet):
    http_method_names = ['get', 'put', 'post','patch', 'delete']
    serializer_class = AuthorSerializer

    def get_queryset(self):
        queryset = Author.objects.all().order_by('id')
        id = self.request.query_params.get('id')
        first_name = self.request.query_params.get('first_name')
        last_name = self.request.query_params.get('last_name')
        if id is not None:
            queryset = queryset.filter(id=id)
        if first_name is not None:
            queryset = queryset.filter(first_name=first_name)
        if last_name is not None:
            queryset = queryset.filter(last_name=last_name)
        if queryset:
            return queryset
        else:
            raise NotFound

    def destroy(self, request, *args, **kwargs):
        obj = self.get_object()
        self.perform_destroy(obj)
        return Response(data={'detail': "Deleted successfully"},status=status.HTTP_204_NO_CONTENT)

class QuoteViewSet(viewsets.ModelViewSet):
    http_method_names = ['get', 'put', 'post','patch', 'delete']
    serializer_class = QuoteSerializer
    lookup_field = 'author'

    def get_queryset(self):
        queryset = Quote.objects.all().order_by('id')
        id = self.request.query_params.get('id')
        author = self.request.query_params.get('author')
        source = self.request.query_params.get('source')
        year = self.request.query_params.get('year')
        if id is not None:
            queryset = queryset.filter(id=id)
        if author is not None:
            queryset = queryset.filter(author=author)
        if source is not None:
            queryset = queryset.filter(source=source)
        if year is not None:
            queryset = queryset.filter(year=year)
        if queryset:
            return queryset
        else:
            raise NotFound

    def destroy(self, request, *args, **kwargs):
        obj = self.get_object()
        self.perform_destroy(obj)
        return Response(data={'detail': "Deleted successfully"},status=status.HTTP_204_NO_CONTENT)

Answer 1

如果有人好奇 - 问题是 QuoteViewset 中的查找字段导致我的 API 超链接出现问题。删除后就正常了。