django - 为 django CreateView 将登录用户设置为 created_by

Question

除了 form_valid() 方法之外，我可以将用户设置为创建者的其他有效方法是什么。

views.py

class CreatEEView(LoginRequiredMixin, CreateView,):
    form_class =  ''
    template_name = ''
    success_url = ''

    def form_valid(self, form):
       instance = form.instance
       instance.created_by = Model.objects.get(user=self.request.user)
       instance.save()
       return super().form_valid(form)

Answer 1

您应该使用 self.request.user 本身。此外，您应该不保存实例，它将由super().form_valid(form) 调用处理，因此:

class CreatEEView(LoginRequiredMixin, CreateView):
    form_class = …
    template_name = …
    success_url = …

    def form_valid(self, form):
       form<b>.instance.created_by = self.request.user</b>
       return super().form_valid(form)

你可以把它包装在一个 mixin 中，例如:

class SetUserMixin(LoginRequiredMixin):
    user_field = 'created_by'

    def form_valid(self, form):
        <strong>setattr(</strong>form.instance, <strong>self.user_field, self.request.user)</strong>
        return super().form_valid(form)

然后使用 SetUserMixin :

class CreatEEView(<strong>SetUserMixin</strong>, CreateView):
    form_class = …
    template_name = …
    success_url = …