Rails 4:before_filter 与 before_action [英] Rails 4: before_filter vs. before_action
本文介绍了Rails 4:before_filter 与 before_action的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在 Rails >4.0.0 中，生成器使用 before_action 而不是 before_filter 创建 CRUD 操作.它似乎在做同样的事情.那么这两者有什么区别呢?
In rails >4.0.0 generators creates CRUD operations with before_action not before_filter. It seems to do the same thing. So what's the difference between these two?
推荐答案
我们可以见在ActionController::Base中，before_action只是一个新语法 before_filter.
As we can see in ActionController::Base, before_action is just a new syntax for before_filter.
但是 before_filter 语法 在 Rails 5.0 中已弃用，将在 Rails 5.1
However the before_filter syntax is deprecated in Rails 5.0 and will be removed in Rails 5.1
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