如何使Django permission_required装饰器不要将已登录的用户重定向到登录页面，而是显示一些消息 [英] How can make Django permission_required decorator not to redirect already logged-in users to login page, but display some message

问题描述

如何使Django permission_required装饰器不要将已登录的用户重定向到登录页面，但显示一些消息，如权限不足？

How can make Django permission_required decorator not to redirect already logged-in users to login page, but display some message like Insufficient permissions?

谢谢。 >

Thank you.

推荐答案

一个快速而肮脏的解决方案是编写自己的装饰器来做到这一点。这样的东西：

A quick and dirty solution would be to write your own decorator to do this. Something like this:

decorator_with_arguments = lambda decorator: lambda *args, **kwargs: lambda func: decorator(func, *args, **kwargs)

@decorator_with_arguments
def custom_permission_required(function, perm):
    def _function(request, *args, **kwargs):
        if request.user.has_perm(perm):
            return function(request, *args, **kwargs)
        else:
            request.user.message_set.create(message = "What are you doing here?!")
            # Return a response or redirect to referrer or some page of your choice
    return _function

然后，您可以装饰您的视图：

You can then decorate your view thus:

@custom_permission_required('my_perm')
def my_view(request, *args, **kwargs):
    #Do stuff

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