Django重定向到上一页无效。

你好，我想在提交表单后重定向到之前的页面。成功重定向到之前的页面，但是提交操作没有发生。如果我移除action属性，我可以成功提交数据。

以下是我的表单模板：

{% extends 'musicapp/base.html' %} {% block content %}

{% endblock %}

这是views.py文件：

from django.shortcuts import render, get_object_or_404, redirect, render_to_response

from django.http import HttpResponseRedirect

from .forms import AddTrackForm, AddGenreForm

from django.http import HttpResponse

from .models import Track, Genre

from . import getAlbumArt

def home(request):

tracks = Track.objects.all().order_by('created_date')

return render(request, 'musicapp/post_list.html', {'tracks': tracks})

def post_detail(request, pk):

track = get_object_or_404(Track, pk=pk)

return render(request, 'musicapp/post_detail.html', {'track': track})

def post_new(request):

if request.method == "POST":

form = AddTrackForm(request.POST)

if form.is_valid():

post = form.save(commit=False)

artist = request.POST.get("artist", "")

album = request.POST.get("album", "")

urlArt = getAlbumArt.getAlbumArtURL(album, artist)

print urlArt

if urlArt:

post.cover_image_url = urlArt

if post.album == '*':

post.album = 'Unknown'

post.save()

tracks = Track.objects.all().order_by('created_date')

return render(request, 'musicapp/post_list.html', {'tracks': tracks})

else:

form = AddTrackForm()

return render(request, 'musicapp/post_edit.html', {'form': form})

def post_edit(request, pk):

post = get_object_or_404(Track, pk=pk)

if request.method == "POST":

form = AddTrackForm(request.POST, instance=post)

if form.is_valid():

post = form.save(commit=False)

artist = request.POST.get("artist", "")

album = request.POST.get("album", "")

urlArt = getAlbumArt.getAlbumArtURL(album, artist)

print urlArt

if urlArt:

post.cover_image_url = urlArt

if post.album == '*':

post.album = 'Unknown'

post.save()

tracks = Track.objects.all().order_by('created_date')

return redirect('post_detail', pk=post.pk)

else:

form = AddTrackForm(instance=post)

return render(request, 'musicapp/post_edit.html', {'form': form})

def genre(request):

tracks = Track.objects.all().order_by('created_date')

genres = Genre.objects.all()

return render(request, 'musicapp/genre.html', {'genres': genres, 'tracks': tracks})

def genre_songs(request, pk):

genres = Genre.objects.all()

genre_obj = get_object_or_404(Genre, pk=pk)

tracks = genre_obj.track_set.all()

return render(request, 'musicapp/genre_songs.html', {'genres': genres, 'genre' : genre_obj, 'tracks': tracks})

def genre_new(request):

if request.method == "POST":

form = AddGenreForm(request.POST)

if form.is_valid():

post = form.save(commit=False)

post.save()

genres = Genre.objects.all()

next = request.POST.get('next', '/')

return render_to_response('musicapp/post_edit.html', {'form': AddTrackForm()})

else:

form = AddGenreForm()

return render(request, 'musicapp/genre_edit.html', {'form': form})

这些是URL路由：

from django.conf.urls import url

from . import views

urlpatterns = [

url(r'^$', views.home, name='post_list'),

url(r'^track/(?P\d+)/$', views.post_detail, name='post_detail'),

url(r'^track/new/$', views.post_new, name='post_new'),

url(r'^track/(?P\d+)/edit/$', views.post_edit, name='post_edit'),

url(r'^genre/$', views.genre, name='genre_list'),

url(r'^genre/(?P\d+)/$', views.genre_songs, name='genre_songs'),

url(r'^genre/new/$', views.genre_new, name='genre_new'),

]