Question

我试图让django中的消息框架起作用。

以下是我的settings.py

的有趣内容

INSTALLED_APPS = (
    'django.contrib.sessions',
    'django.contrib.messages',
)

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware',
)

我没有向TEMPLATE_CONTEXT_PROCESSORS添加任何内容，因此它是默认值。

我的观点，我想要显示的消息：

from django.contrib.messages import get_messages

class ProfileFrontpage(TemplateView):

    def get(self, request, *args, **kwargs):
        if request.user.is_authenticated():

            #Get messages
            messages = get_messages(request)

            #Get the user            
            user = self.request.user

            #Used benefit
            used_benefit_list = Benefit.published.filter(used_benefit__user = user)

            return render(request, "accounts/frontpage.html", {"messages": messages, "used_benefit_list": used_benefit_list})
        else:
            return render(request, 'accounts/not_authenticated.html')

模板：

{% if messages %}
        {% for message in messages %}
            <div class="alert {{ message.tags }}">
                <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button>
                {{ message }}
            </div>
        {% endfor %}  
{% endif %}

这是我的表单，应该在表单有效时创建一条消息：

def show_profileform(request):       
    if request.user.is_authenticated():
        user = request.user

        ProfileFormInlineFormSet = inlineformset_factory(User, Profile, form=ProfileForm, can_delete=False)

        if request.method == "POST":
            form = UserForm(request.POST, request.FILES, instance=request.user, prefix="main")
            formset = ProfileFormInlineFormSet(request.POST, request.FILES, instance=request.user, prefix="nested")        
            if 'submit' in request.POST:
                if form.is_valid() and formset.is_valid():

                    u = User.objects.get(username = request.user)                    

                    #Save to database
                    user = form.save()
                    profile = formset.save()

                    messages.success(request, "Settings updated", extra_tags='alert-success')

                    return HttpResponseRedirect('/accounts/')

        else:
            form = UserForm(instance=request.user, prefix="main")
            formset = ProfileFormInlineFormSet(instance=request.user, prefix="nested")

        return render(request, "accounts/form.html", {"form":form, "formset":formset})
    else:
        return render(request, 'accounts/not_authenticated.html')

任何人都知道为什么邮件不可见？

Answer 1

TEMPLATE_CONTEXT_PROCESSORS设置by default包含消息上下文处理程序。因此，您无需在视图中执行get_messages(request)。实际上，在您的情况下它是有害的：对get_messages()的调用获取消息并清除消息存储。然后，上下文处理器尝试执行相同操作，但找不到任何内容，因为您的视图已清除它们。然后，它会继续在模板上下文中设置messages键，并覆盖视图中的值。

简而言之：从ProfileFrontpage视图中删除处理消息，它应该可以正常工作。

Django 1.6 - 消息未显示

1 个答案: