如果before_action返回false，则如何执行操作 [英] how to execute an action if the before_action returns false

问题描述

我知道用下面的代码：

before_action：signed_in ?, only：[：new]

如果 signed_in？，将执行操作 new >返回true，但是如果我想在 signed_in？返回false的情况下执行 new 去做？我必须创建一个新的方法，例如 not_signed_in？？

the action new will be executed if the signed_in? returns true, but instead if I want the new action to be executed when signed_in? returns false what do I have to do? Do I have to create a new method called, for instance, not_signed_in??

c $ c> signed_in？方法

Here it is my signed_in? method

def signed_in?
  !@current_user.nil?
end

推荐答案

before_action你认为 - 如果回调返回 false ，它不会阻止执行操作。
我会以一些不同的方式解决你的问题，例如：

before_action doesn't work as you think - it doesn't prevent action to be executed if callback returns false. I would solve your problem in a little bit different manner, for example:

before_action :redirect_to_root, :if => :signed_in?, :only => :new

# ...
private
def redirect_to_root
  redirect_to root_path
end

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