method

concern

v4.2.1 - Show latest stable - Class: Module::Concerning

concern(topic, &module_definition)

public

A low-cruft shortcut to define a concern.

concern :EventTracking do
  ...
end

is equivalent to

module EventTracking
  extend ActiveSupport::Concern

  ...
end

# File activesupport/lib/active_support/core_ext/module/concerning.rb, line 127
    def concern(topic, &module_definition)
      const_set topic, Module.new {
        extend ::ActiveSupport::Concern
        module_eval(&module_definition)
      }
    end

concern

Related methods