Django - CreateView - 如何声明变量并在模板中使用它

Question

如何在Django的Createview中声明变量,以便从模板中使用它？例如,我想在模板中使用{{place_slug}}.我从urls.py传递了这个,如下所示:

urls.py:

urlpatterns = patterns('',
    (r'^new/(?P<place_slug>[\w\-\_]+)/?$', PictureCreateView.as_view(), {}, 'upload-new'),
)

views.py:

class PictureCreateView(CreateView):
    model = Picture

    def dispatch(self, *args, **kwargs):
        self.place = get_object_or_404(Place, slug=kwargs['place_slug'])
        return super(PictureCreateView, self).dispatch(*args, **kwargs)

    def form_valid(self, form):
        more code here

Answer 1

覆盖get_context_data并设置context_data ['place_slug'] = your_slug

像这样的东西:

def get_context_data(self, **kwargs):
    context = super(PictureCreateView, self).get_context_data(**kwargs)
    context['place_slug'] = self.place.slug
    return context

在Django文档中有关于此的更多信息.