所以我有我的rails控制器
class SomeController < ApplicationController
include Something
...
require_information do
more_infomation "Stuff" do
data :stuff_i_want_to_access, [:index]
data :more_stuff_i_want_to_access, [:edit]
data :more_stuff_i_want_to_access, [:show]
end
end
我为我们创建的require_information
DSL在应用程序中拥有一些自定义权限,但问题是我需要从其他地方访问该数据。有没有办法从另一个位置访问3个数据元素。我试过了
SomeController.class_variables
=> []
SomeController.require_information
=> nil
SomeController.require_information2
NoMethodError: undefined method `require_permissionsd' for SomeController:Class
任何想法,如果这是可能的
更新:我不认为DSL是重要的,因为它只是处理权限,但这里是DSL
module Something
extend ActiveSupport::Concern
included do
class_attribute :data_information
prepend_before_filter :verify_access
end
module ClassMethods
def require_information &block
self.data_information = []
self.instance_eval &block if block_given?
end
def more_infomation *name, &block
@data = []
self.instance_eval &block if block_given?
self.data_information << { name: name, data: @data.dup }
@data.clear
end
def data *action, &block
@data.push(action)
end
end
def verify_access
# Do stuff
# I have access to data_information by self.class.data_information
end
end
答案 0 :(得分:1)
您可以使用以下方式访问数据:
SomeController.data_information
会给你:
[{:name=>["Stuff"],
:data=>
[[:stuff_i_want_to_access, [:index]],
[:more_stuff_i_want_to_access, [:edit]],
[:more_stuff_i_want_to_access, [:show]]]}]
DSL实施很重要,因为它是DSL实现,可以告诉您存储信息的位置,这是其他人可以看到的信息。您不需要共享DSL实施的唯一方法是DSL是否在DSL本身提供了一种机制来访问先前存储的信息。