问Django get_absolute_url NoReverseMatch零模式尝试

EN

NoReverseMatch at /admin/r/14/3/ (or NoReverseMatch at /blogs/add/)

Reverse for 'blog_detail' with arguments '()' and keyword arguments '{'pk': 3}' not found. 0 pattern(s) tried: []

from django.contrib.auth.models import User
from django.conf import settings
from django.db import models
from django.core.urlresolvers import reverse
from audit_log.models.fields import CreatingUserField, CreatingSessionKeyField

class Blog(models.Model):
    created_by = CreatingUserField(related_name = "created_categories")
    created_with_session_key = CreatingSessionKeyField()
    created_time = models.DateTimeField(auto_now_add=True)
    blog_title = models.CharField('Blog Title', max_length=200)
    short_description = models.TextField('Short Description', max_length=140)
    blog_image = models.CharField('Image', max_length=200)
    youtube_link = models.URLField('YouTube', max_length=200)
    external_site_link = models.URLField('Website', max_length=200)
    full_blog = models.TextField(max_length=10000)

    def get_absolute_url(self):
        return reverse('blog_detail', kwargs={'pk': self.pk})

    def __unicode__(self):
        return self.blog_name

from __future__ import unicode_literals

from django.conf import settings
from django.conf.urls import patterns, include, url
from django.conf.urls.static import static
from django.views.generic import TemplateView

# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
    url(r'^blogs/', include('blogs.urls', namespace='blogs')),
)

from django.conf.urls import patterns, url
from blogs import views

urlpatterns = patterns('',
    url(
        regex=r'^$',
        view=views.BlogListView.as_view(),
        name='blog_list'
    ),

    url(
        regex=r'^(?P<pk>\d+)/$',
        view=views.BlogDetailView.as_view(),
        name='blog_detail'
    ),

    url(
        regex=r'^add/$',
        view=views.BlogCreate.as_view(),
        name='blog_add'
    ),

    url(
        regex=r'^(?P<pk>\d+)/$',
        view=views.BlogUpdate.as_view(),
        name='blog_update'
    ),

    url(
        regex=r'^(?P<pk>\d+)/delete/$',
        view=views.BlogDelete.as_view(),
        name='blog_delete'
    ),
)

from django.shortcuts import render
from django.core.urlresolvers import reverse

from django.views.generic import DetailView
from django.views.generic import RedirectView
from django.views.generic import UpdateView
from django.views.generic import ListView

from django.views.generic.edit import CreateView, UpdateView, DeleteView
from django.core.urlresolvers import reverse_lazy

# Only authenticated users can access views using this.
from braces.views import LoginRequiredMixin

from .models import Blog

class BlogDetailView(DetailView):
    model = Blog

class BlogListView(ListView):
    model = Blog

class BlogCreate(LoginRequiredMixin, CreateView):
    model = Blog
    fields = ['blog title', 'short_description', 'blog_image',
              'youtube_link', 'external_site_link', 'full_blog']

class BlogUpdate(LoginRequiredMixin, UpdateView):
    model = Blog
    fields = ['blog title', 'short_description', 'blog_image',
              'youtube_link', 'external_site_link', 'full_blog']

class BlogDelete(LoginRequiredMixin, DeleteView):
    model = Blog
    success_url = reverse_lazy('blog_list')