Find all needed information about Require Activesupport Concern. Below you can see links where you can find everything you want to know about Require Activesupport Concern.
https://api.rubyonrails.org/classes/ActiveSupport/Concern.html
require 'active_support/concern' module Foo extend ActiveSupport::Concern included do def self.method_injected_by_foo ... end end end module Bar extend ActiveSupport::Concern include Foo included do self.method_injected_by_foo end end class Host include Bar # It works, now Bar takes care of its dependencies end.
https://stackoverflow.com/questions/39069426/when-to-use-require-vs-activesupportconcern
Rails already has a auto_load_paths in config/application.rb that will make sure you have those things in scope and don't need to require them explicitly. You can add paths to that if you create new directories you want loaded. But that's just for getting access to the code. how you design the code is really an issue of deciding about model vs. concern vs. module for your code. – jaydel Aug ...
https://github.com/rails/rails/blob/master/activesupport/lib/active_support/concern.rb
Apr 17, 2019 · rails / activesupport / lib / active_support / concern.rb Find file Copy path okuramasafumi Add documentations to AS::Concern#included and #class_methods 8dcce70 …
http://engineering.appfolio.com/appfolio-engineering/2013/06/17/ruby-mixins-activesupportconcern
Jun 17, 2013 · So far ActiveSupport::Concern has taken away some of the boilerplate code used in the pattern: no need to define an included hook, no need to extend the target class with ClassMethods, no need to class_eval on the target class. The last thing that ActiveSupport::Concern does is what I …
https://qiita.com/aosho235/items/1867be19d044d83127d4
require "active_support/concern" class Base # Baseのクラスメソッド def self. hoge (str) puts str end end module Mod extend ActiveSupport:: Concern included do hoge ("same") end end class Sub1 < Base include Mod end class Sub2 < Base include Mod end
https://guides.rubyonrails.org/active_support_core_extensions.html
require 'active_support' require 'active_support/core_ext' 1.1.4 Loading All Active Support And finally, if you want to have all Active Support available just issue:
https://ruby-china.org/topics/19812
Mar 29, 2019 · ActiveSupport::Concern 被引入到 rails. 根据这篇文章 put-chubby-models-on-a-diet-with-concerns 中这样一段话把它的意思说的很明白了：. This concern can then be mixed into all the models that are taggable and you’ll have a single place to update the logic and reason about it.
https://stackoverflow.com/questions/14541823/how-to-use-concerns-in-rails-4
require 'active_support/concern' module Foo extend ActiveSupport::Concern included do def self.method_injected_by_foo_to_host_klass ... end end end module Bar extend ActiveSupport::Concern include Foo included do self.method_injected_by_foo_to_host_klass end end class Host include Bar # It works, now Bar takes care of its dependencies end
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