before_filter 语法，当你想“除外"时控制器“abc" [英] before_filter syntax when you want to "except" controller "abc"

问题描述

在 Rails 中，当您想排除"控制器abc"时，before_filter 语法是什么.

In Rails what is the before_filter syntax when you want to "except" controller "abc".

例如，在 application_controller 中如果我想说:

Example, in the application_controller if I want to say:

before_filter :login_required :except => ["-name of controller-"]

背景 - 只需要在整个应用程序中进行基本身份验证，除了实际处理用户身份验证的控制器......

Background - Just wanted basic authentication across the whole app except the controller that actually handles getting a user authenticated....

推荐答案

您可以在控制器中不应该执行 before_filter 的地方放置以下行:

You can put the following line in the controller where the before_filter should not be executed:

skip_before_filter :login_required

您甚至可以使用 :only 和 :except 选项指定忽略 before_filter 的方法:

You can even specifiy the methods where the before_filter is ignored with :only and :except options:

skip_before_filter :login_required, :only => [:login]

示例此处.

在 Rails 4 中，before_filter 的别名为 before_action，skip_before_filter 的别名也为 skip_before_action

with Rails 4, before_filter is aliased with before_action, and skip_before_filter is also aliased with skip_before_action

这篇关于before_filter 语法，当你想“除外"时控制器“abc"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！