Django FormView没有表单上下文

Question

定义FormView派生类时:

class PrefsView(FormView):
    template_name = "prefs.html"
    form_class = MyForm         # What's wrong with this?
    def get(self,request):
        context = self.get_context_data()
        context['pagetitle'] = 'My special Title'
        context['form'] = MyForm    # Why Do I have to write this?
        return render(self.request,self.template_name,context)

我预计context['form'] = MyForm不需要该行,因为form_class已定义,但没有它{{ form }}不会传递给模板.
我做错了什么？

Answer 1

在上下文中,form应该是实例化的表单,而不是表单类.定义与form_class在上下文数据中包含实例化表单完全分开.

对于你给出的例子,我认为你最好覆盖get_context_data而不是get.

def get_context_data(self, **kwargs):
    context = super(PrefsView, self).get_context_data(**kwargs)
    context['pagetitle'] = 'My special Title'
    return context