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PODjango Error Reverse for 'forum' with arguments '('',)' and keyword arguments '{}' not found
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14921572
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2013-02-17T13:26:42.453
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2015-07-06T16:38:43.510
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2013-02-17T13:43:37.550
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I'm making a simple forum using this tutorial <a href="http://lightbird.net/dbe/forum1.html" rel="nofollow">http://lightbird.net/dbe/forum1.html</a> I encounter this error which I have no idea what to do.Can you help me fix this error <pre><code> 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 %}">&lt;&lt; back to list of topics</a> </code></pre> My Post.html are <pre><code> <a href="{% url ben:forum forum_pk %}">&lt;&lt; back to list of topics</a> </code></pre> My views are : <pre><code> 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") </code></pre> My URL: <pre><code> 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"), ) </code></pre>
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Django Error Reverse for 'forum' with arguments '('',)' and keyword arguments '{}' not found
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