Question

我有一个名为＆＃39; Read Later＆＃39;用户阅读以后发布的帖子存储在哪里。我在导航栏上有Read Later。现在，当用户以后没有读取帖子并点击“稍后阅读”时，用户将被重定向回原始页面。我有一个基于函数的def for Read Later。

views.py：

def show_readlater(request, *args):
    global redirect
    global redirect_lock
    global return_address
    if not(redirect_lock):
        redirect = None
    else:
        redirect_lock = False
    if not(request.user.is_authenticated()):
        raise PermissionDenied
    else:
        user_instance = User.objects.get(username = request.user.username)
        userprofile_instance = UserProfile.objects.get(user = user_instance)
        readlater_objects = ReadLaterList.objects.all()
        readlater_list = []
        count = 0
        for x in readlater_objects:
            if x.username == request.user.username:
                readlater_post = Post.objects.get(slug = x.slug)
                readlater_list.append(readlater_post)
                count = count + 1
        if count == 0 :
            redirect = "no_readlater"
            redirect_lock = True
            return HttpResponseRedirect(return_address)   # The user is redirect back to the original page
        post_title = "Read Later" 
        template = "posts/show_posts.html"
        dictionary = {
            "total_posts"    : readlater_list,
            "title"          : post_title,
            "count"         : count,
            "redirect"      : redirect,

        }
        return render(request, template, dictionary)

此处，redirect将在原始页面中显示没有“稍后阅读”帖子的消息。

问题是，当重定向发生时，Django说找不到页面，但刷新后页面被加载。

发生了什么事？

Answer 1

首先改变这个

    global redirect
    global redirect_lock
    global return_address

到

request.session['redirect']= redirect

表示所有全局变量

并使用redirect代替HttpResponseRedirect

Answer 2

确保全局变量“return_address”中指定的网址正确并在app / urls.py中指定。

Django在HttpResponseRedirect期间引发404错误但刷新后显示当前页面

2 个答案: