Question

我正在关注djangorest框架教程并构建一个博客应用程序。但是，当我尝试将数据呈现为HTML表单时，我遇到了“NoReverseMatch”错误。

以下是我的models.py

from django.db import models

class BlogModel(models.Model):  
    blog_title = models.CharField(max_length = 50)
    blog_post = models.TextField(max_length = 100)
    blog_author = models.CharField(max_length = 30)
    blog_tags = models.CharField(max_length = 30)

    def __str__(self):
        return self.blog_title

    class Meta:
        ordering = ('blog_title',)

serializers.py

from rest_framework import serializers
from blogg.models import *

class BlogSerializer(serializers.ModelSerializer):
    class Meta:
        model = BlogModel
        fields = ('blog_title', 'blog_post', 'blog_author', 'blog_tags')

views.py

from django.shortcuts import render
from rest_framework.views import APIView
from rest_framework.response import Response
from django.http import Http404
from blogg.models import *
from blogg.serializers import *
from rest_framework.renderers import TemplateHTMLRenderer

class BlogList(APIView):    
    serializer_class = BlogSerializer
    renderer_classes = [TemplateHTMLRenderer]
    template_name = 'home.html'
    def get(self, request, format = None):      
        blogs = BlogModel.objects.all()
        #serializer = BlogSerializer(blogs, many = True)
        #return Response(serializer.data)   
        return Response({'blogs':blogs})
    def post(self, request, format = None):     
        serializer = BlogSerializer(data = request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors)

class BlogDetail(APIView):  
    serializer_class = BlogSerializer
    renderer_classes = [TemplateHTMLRenderer]
    template_name = "details.html"
    def get_object(self, pk):       
        try:
            return BlogModel.objects.get(pk = pk)
        except BlogModel.DoesNotExist:
            raise Http404

    def get(self, request, pk, format = None):
        blogs = self.get_object(pk)
        serializer = BlogSerializer(blogs)
        #return Response(serializer.data)
        return Response({'serializer':serializer, 'blogs':blogs})

    def put(self, request, pk, format = None):
        blogs = self.get_object(pk)
        serializer = BlogSerializer(blogs, data = request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors)

    def delete(self, request, pk, format = None):
        blogs = self.get_object(pk)
        blogs.delete()
        serializer = BlogSerializer(blogs)
        return Response(serializer.data)

urls.py

from django.conf.urls import url, include
from blogg import views
from rest_framework.urlpatterns import format_suffix_patterns


urlpatterns = [
    url(r'^blogs/$', views.BlogList.as_view()),
    url(r'^blogs/(?P<pk>[0-9]+)/$', views.BlogDetail.as_view()),

]

urlpatterns = format_suffix_patterns(urlpatterns)

details.html

{% load rest_framework %}

<html><body>

<h1>Blog - {{ blogs.title }}</h1>

<form action="{% url 'details' blogs.id %}" method="POST">
    {% csrf_token %}
    {% render_form serializer %}
    <input type="submit" value="Save">
</form>

</body></html>

错误说明：

Reverse for 'details' with arguments '(1,)' and keyword arguments '{}' not found. 0 pattern(s) tried: []

行：<form action="{% url 'details' blogs.id %}" method="POST">

我想尝试访问的网址：

http://127.0.0.1:8000/blogg/blogs/1/

你可以帮我解决这个问题。如有任何其他信息，请告诉我

Answer 1

您没有将name作为关键字参数传递到您的网址函数中，以便使用已命名的网址。

这样的事应该可以正常工作：

url(r'^blogs/(?P<pk>[0-9]+)/$', views.BlogDetail.as_view(), name='details')

Answer 2

最后，我解决了这个问题。我只是在我的网址上添加了一个名称，并在模板中使用了相同的名称，如下所示

在urls.py中添加了name属性

from django.conf.urls import url, include
from blogg import views
from rest_framework.urlpatterns import format_suffix_patterns


urlpatterns = [
    url(r'^blogs/$', views.BlogList.as_view()),
    url(r'^blogs/(?P<pk>[0-9]+)/$', views.BlogDetail.as_view(), name = 'blog_details'),

]

urlpatterns = format_suffix_patterns(urlpatterns)

details.html

{% load rest_framework %}

<html><body>

<h1>Blog - {{ blogs.title }}</h1>

<form action="{% url 'blog_details' blogs.id %}" method="POST">
    {% csrf_token %}
    {% render_form serializer %}
    <input type="submit" value="Save">
</form>

</body></html>

它的工作：）

djangorest框架的NoReverseMatch错误

2 个答案: