Module: ActionMailer::Helpers

Defined in:
lib/action_mailer/helpers.rb

Overview

:nodoc:

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object

:nodoc:



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# File 'lib/action_mailer/helpers.rb', line 5

def self.included(base) #:nodoc:
  # Initialize the base module to aggregate its helpers.
  base.class_inheritable_accessor :master_helper_module
  base.master_helper_module = Module.new

  # Extend base with class methods to declare helpers.
  base.extend(ClassMethods)

  base.class_eval do
    # Wrap inherited to create a new master helper module for subclasses.
    class << self
      alias_method_chain :inherited, :helper
    end

    # Wrap initialize_template_class to extend new template class
    # instances with the master helper module.
    alias_method_chain :initialize_template_class, :helper
  end
end