Question

我没有找到任何关于此的明确文档，但我有一个联系表单，我需要在侧边栏中使用多个视图。目前我的代码很脏，因为我在多个视图中重复下面的代码片段来处理表单。有没有办法将Post Request放在可以继承的模板中？

查看

def contact(request):
    form_class = ContactForm

    if request.method == 'POST':
        form = form_class(data=request.POST)
        messages.add_message(request, messages.SUCCESS, 'Thank you, we have received your message.')

        if form.is_valid():
        ...

感谢您的帮助。

Answer 1

现在，我假设您在运行每个视图时执行与以下相同的操作：

def contact(request):
    # First you choose the form.
    form_class = ContactForm

    # Then you want to know if request is POST type
    if request.method == 'POST':
        # You take the form data from given POST
        form = form_class(data=request.POST)
        # You add message to messages.
        messages.add_message(request, messages.SUCCESS, 'Thank you, we have received your message.')

如果您一遍又一遍地执行相同操作，则可以在任何应用的views.py文件的开头创建自己的功能，以便将其缩短，并not to repeat yourself一次又一次。

def take_message(request, form, messages, message):
    if request.METHOD == "POST":
        # I'm reinitializing <form> variable here.
        form = form(data=request.POST)
        # That <message> variable below must be a string, then you can dynamically pass your message.
        messages.add_message(request, messages.SUCCESS, message)

然后在您的视图中使用它：

def contact(request):
    take_message(request, ContactForm, messages, "Thanks, we got your message.")
    # And the rest here.

但是，我建议您使用class-based views，因为它们可以处理任何请求类型作为方法。所以，我正在改变take_message方法，如下所示：

def take_message(request, form, messages, message):
    # I'm reinitializing <form> variable here.
    form = form(data=request.POST)
    # That <message> variable below must be a string, then you can dynamically pass your message.
    messages.add_message(request, messages.SUCCESS, message)

然后，我的观点如下：

from django.views.generic import TemplateView
# And any other important imports.

# ...

class ContactView(TemplateView):
    template_name = "contact.html" # This is your template.

    def get(self, request):
        # Do things when the method is GET. Like, viewing current messages in a hypothetical admin template.

    def delete(self, request):
        # Do things when the method is DELETE. Don't forget to use authentication here, so only superuser can delete messages.

    def post(self, request):
        # Do things when the method is POST.
        # I'm assuming anonymous users can send messages, so there's no need for authentication here.
        take_message(request, ContactForm, messages, "Thanks you, we got your message.")
        # Other things to do.

# urls.py
url(r"^contact/$", ContactView.as_view(), name="contact-page")

具有继承的后请求的多个视图中的一个Django表单

1 个答案: