このチュートリアルを使用して簡単なフォーラムを作成していますhttp://lightbird.net/dbe/forum1.html
どうしたらよいかわからないこのエラーが発生しました。このエラーの修正を手伝ってもらえますか？
NoReverseMatch at /forum/post/reply/1/
Reverse for 'forum' with arguments '('',)' and keyword arguments '{}' not found.
Request Method: GET
Request URL: http://127.0.0.1:8000/forum/post/reply/1/
Django Version: 1.4.3
Exception Type: NoReverseMatch
Exception Value:
Reverse for 'forum' with arguments '('',)' and keyword arguments '{}' not found.
Exception Location: C:\Python26\Lib\site-packages\django\template\defaulttags.py in render, line 424
Python Executable: C:\Python26\python.exe
Error during template rendering
In template C:\djcode\mysite\forum\templates\forum\post.html, error at line 1
Reverse for 'forum' with arguments '('',)' and keyword arguments '{}' not found.
1 <a href="{% url ben:forum forum_pk %}"><< back to list of topics</a>
私のPost.htmlは
<a href="{% url ben:forum forum_pk %}"><< back to list of topics</a>
私の見解は：
from django.core.urlresolvers import reverse
from mysite.settings import MEDIA_ROOT, MEDIA_URL
from forum.models import Forum
from django.shortcuts import render_to_response
from forum.models import Thread
from django.core.paginator import Paginator, InvalidPage, EmptyPage
from django.core.context_processors import csrf
from forum.models import Post
def main(request):
"""Main listing."""
forums = Forum.objects.all()
return render_to_response("forum/list.html", dict(forums=forums, user=request.user))
def forum(request, pk):
"""Listing of threads in a forum."""
threads = Thread.objects.filter(forum=pk).order_by("-created")
threads = mk_paginator(request, threads, 20)
return render_to_response("forum/forum.html", add_csrf(request, threads=threads, pk=pk))
def thread(request, pk):
"""Listing of posts in a thread."""
posts = Post.objects.filter(thread=pk).order_by("created")
posts = mk_paginator(request, posts, 15)
title = Thread.objects.get(pk=pk).title
return render_to_response("forum/thread.html", add_csrf(request, posts=posts, pk=pk,
title=title, media_url=MEDIA_URL))
def add_csrf(request, ** kwargs):
d = dict(user=request.user, ** kwargs)
d.update(csrf(request))
return d
def mk_paginator(request, items, num_items):
"""Create and return a paginator."""
paginator = Paginator(items, num_items)
try: page = int(request.GET.get("page", '1'))
except ValueError: page = 1
try:
items = paginator.page(page)
except (InvalidPage, EmptyPage):
items = paginator.page(paginator.num_pages)
return items
def post(request, ptype, pk):
"""Display a post form."""
action = reverse("ben:%s" % ptype, args=[pk])
if ptype == "new_thread":
title = "Start New Topic"
subject = ''
elif ptype == "reply":
title = "Reply"
subject = "Re: " + Thread.objects.get(pk=pk).title
return render_to_response("forum/post.html", add_csrf(request, subject=subject,
action=action, title=title))
def new_thread(request, pk):
"""Start a new thread."""
p = request.POST
if p["subject"] and p["body"]:
forum = Forum.objects.get(pk=pk)
thread = Thread.objects.create(forum=forum, title=p["subject"], creator=request.user)
Post.objects.create(thread=thread, title=p["subject"], body=p["body"], creator=request.user)
return HttpResponseRedirect(reverse("ben:forum", args=[pk]))
def reply(request, pk):
"""Reply to a thread."""
p = request.POST
if p["body"]:
thread = Thread.objects.get(pk=pk)
post = Post.objects.create(thread=thread, title=p["subject"], body=p["body"],
creator=request.user)
return HttpResponseRedirect(reverse("ben:thread", args=[pk]) + "?page=last")
私のURL：
from django.conf.urls import patterns,include,url
from django.contrib import admin
from django.conf import settings
urlpatterns = patterns('forum.views',
url(r'^$','main',name='main'),
url("^forum/(\d+)/$", "forum",name ="forum"),
url("^thread/(\d+)/$","thread",name = "thread"),
url(r"^post/(new_thread|reply)/(\d+)/$", "post",name = "post"),
url(r"^reply/(\d+)/$", "reply" , name ="reply"),
url(r"^new_thread/(\d+)/$", "new_thread" , name ="new_thread"),
)