filters.py 文件源码

def render(self, context):
        user = template.resolve_variable('user', context)

        if not user.is_authenticated():
            return self.nodelist_false.render(context)

        allowed = False
        for checkgroup in self.groups:

            if checkgroup.startswith('"') and checkgroup.endswith('"'):
                checkgroup = checkgroup[1:-1]

            if checkgroup.startswith("'") and checkgroup.endswith("'"):
                checkgroup = checkgroup[1:-1]

            try:
                group = Group.objects.get(name=checkgroup)
            except Group.DoesNotExist:
                break

            if group in user.groups.all():
                allowed = True
                break

        if allowed:
            return self.nodelist_true.render(context)
        else:
            return self.nodelist_false.render(context)