Question

我正在尝试从插件中修补我的Rails（4.2.5）应用程序的 ApplicationController 。我想将'rescue_from ActiveRecord :: RecordNotFound'添加到我的ApplicationController.Ways我一直试用到现在：

1

module ApplicationControllerPatch
            def self.included(base) 
            base.class_eval do
                rescue_from ActiveRecord::RecordNotFound do |e|
                    redirect_to root_path
                end
            end
        end
    end

ApplicationController.send(:include, ApplicationControllerPatch)

2

module ApplicationControllerPatch
    def self.included(base) 
        base.send(:include, InstanceMethods)
        base.class_eval do
            rescue_from ActiveRecord::RecordNotFound, with: :not_found
        end
    end
    module InstanceMethods
        def not_found
            redirect_to root_path
        end
    end
end

ApplicationController.send(:include, ApplicationControllerPatch)

此堆栈溢出链接中的解决方案： How do I require ActiveSupport's rescue_from method?

到目前为止，似乎没有任何方法可行。如果上述代码中存在错误，请提供任何解决方案或帮助。

Answer 1

在这里，我做了同样的事情并测试它对我来说效果很好。以下是我的模块。我已添加到Application lib / exception_data_redirection

module ExceptionDataRedirection
  extend ActiveSupport::Concern
  included do
    rescue_from ActiveRecord::RecordNotFound do |exception|
      redirect_to items_path
    end
  end
 end

items_path 将是重定向网址

在application.rb中 - 添加以下行

 config.autoload_paths += %W(#{config.root}/lib)

重启服务器....

然后ApplicationController - 包含模块

  include ExceptionDataRedirection

这就像一个魅力，你也可以这样做

module ExceptionDataRedirection

  def self.included(base)
    base.class_eval do
      rescue_from ActiveRecord::RecordNotFound do |exception|
        redirect_to items_path
      end
    end
  end
end

请告诉我如果有任何问题

Rails从patch //插件向应用程序控制器添加'rescue_from'方法

1 个答案: