Django使用HttpResponseRedirect形式重定向 [英] Django form redirect using HttpResponseRedirect

问题描述

所以这不可能太难了，但我无法想像出来...

So this can't be too hard but I can't figure it out...

我想要我的表单在django（位于 / file_upload / ）上传文件，将其添加到数据库，然后重定向到新页面，其中参数是我在数据库中添加的字段的ID（位于 /文件/ 163 / ，说）

I want my form in django (located at /file_upload/) to upload a file, add it to the database, and then redirect to a new page where the parameter is the id of the field that I've added in the database (located at /file/163/, say).

我已经设置了urls.py，以便 / file / 163 / 如果您直接在那里导航，但是我不知道如何从 / file / upload / 进入。

I've set up urls.py so that /file/163/ works just fine if you navigate there directly, but I don't know how to get there from /file/upload/.

我的代码就像这个：

def add(request):
    if request.method == 'POST': # If the form has been submitted...
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            # do stuff & add to database
  my_file = FileField.objects.create()
            return HttpResponseRedirect(reverse('/file/', args=[my_file.id]))

我无法使用此解决方案因为我在view.py中处理窗体之前不知道字段id是什么，所以重定向必须在views.py中发生。我想。

I can't use this solution because I don't know what the field id is going to be until I've handled the form in views.py, so the redirect has to happen in views.py. I think.

任何想法？

推荐答案

表单应该是这样的：

def add(request):
    if request.method == 'POST':
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            # do stuff & add to database
            my_file = FileField.objects.create()
             # use my_file.pk or whatever attribute of FileField your id is based on
            return HttpResponseRedirect('/files/%i/' % my_file.pk)
    else:
        form = UploadFileForm()

    return render_to_response('upload_file.html', {
        'form': form,
    })

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