generics.py 文件源码

def dispatch(self, request, *args, **kwargs):
        """
        Most views in a CMS require a login, so this is the default setup.

        If a login is not required then the requires_login property
        can be set to False to disable this.
        """
        if self.requires_login:
            if settings.LOGIN_URL is None or settings.LOGOUT_URL is None:
                raise ImproperlyConfigured(
                    'LOGIN_URL and LOGOUT_URL '
                    'has to be defined if requires_login is True'
                )

            if not request.user.is_authenticated():
                return redirect('%s?next=%s' % (
                    resolve_url(settings.LOGIN_URL),
                    quote(request.get_full_path())))

        return super(View, self).dispatch(request, *args, **kwargs)