如何使用基于类的视图在同一模板中使用两个不同的 Django 表单

Posted 2023-02-24

【中文标题】如何使用基于类的视图在同一模板中使用两个不同的 Django 表单

【英文标题】：How to use two different Django Form at the same template using class based view

【发布时间】：2016-03-14 14:57:14

【问题描述】：

我正在使用基于 django 类的视图来创建两种表单（线程、消息）。

views.py

class ThreadForm(FormView):
    template_name = 'thread.html'
    form_class = ThreadModelForm
    success_url = '/success'

    def form_valid(self, form):
        # This method is called when valid form data has been POSTed.
        # It should return an HttpResponse.
        return super(ThreadForm, self).form_valid(form)

class MessageForm(FormView):
    template_name = 'thread.html'
    form_class = MessageModelForm
    success_url = '/success'

    def form_valid(self, form):
        # This method is called when valid form data has been POSTed.
        # It should return an HttpResponse.
        return super(MessageForm, self).form_valid(form)

两者都是渲染同一个html文件thread.html。谁能告诉我如何在同一个模板中呈现两个表单？

thread.html

 form.as_p 

更新：我正在使用下面的视图，但它不起作用：

class MessageForm(FormView):
    template_name = 'thread.html'
    success_url = '/success'

    def form_valid(self, form):
        # This method is called when valid form data has been POSTed.
        # It should return an HttpResponse.
        return super(MessageForm, self).form_valid(form)

    def get_context_data(self, **kwargs):
        context = super(MessageForm, self).get_context_data(**kwargs)
        context['second_form'] = MessageModelForm
        return context

【问题讨论】：

您可以从下面的链接Same problem You have but he has done in a different way获得帮助

【参考方案1】：

为此使用get_context_data 方法。

def get_context_data(self, **kwargs):
    context = super(FormViewName, self).get_context_data(**kwargs)
    context['second_form'] = SecondForm
    return context

然后在你的模板中你可以使用

 second_form.as_p 

此外，在您的 form_valid 方法中，您还必须检查 second_form 的有效性。

【讨论】：

嘿，它正在工作！ urls.py 文件的一些问题 :) 我不需要两个类。

你能告诉我如何在这里验证second_form吗？我正在使用模板中的单个提交按钮，它只向我传递第一个表单数据。

【参考方案2】：

我是这样做的……

class SolicitudUpdate(UpdateView):
    model = Solicitud
    second_model = Persona
    template_name = 'adopcion/solicitud_form.html'
    form_class = SolicitudForm
    second_form_class = PersonaForm
    success_url = reverse_lazy('adopcion:solicitud_listar')


    def get_context_data(self, **kwargs):
        context = super(SolicitudUpdate, self).get_context_data(**kwargs)
        pk = self.kwargs.get('pk', 0)
        solicitud = self.model.objects.get(id=pk)
        persona = self.second_model.objects.get(id=solicitud.persona_id)
        if 'form' not in context:
            context['form'] = self.form_class()
        if 'form2' not in context:
            context['form2'] = self.second_form_class(instance=persona)
        context['id'] = pk
        return context