Method: AbstractController::Helpers::ClassMethods#modules_for_helpers

Defined in:
lib/abstract_controller/helpers.rb

#modules_for_helpers(args) ⇒ Object

Returns a list of modules, normalized from the acceptable kinds of helpers with the following behavior:

String or Symbol

:FooBar or “FooBar” becomes “foo_bar_helper”,

and "foo_bar_helper.rb" is loaded using require_dependency.
Module

No further processing

After loading the appropriate files, the corresponding modules are returned.

Parameters

  • args - An array of helpers

Returns

  • Array - A normalized list of modules for the list of helpers provided.



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# File 'lib/abstract_controller/helpers.rb', line 130

def modules_for_helpers(args)
  args.flatten.map! do |arg|
    case arg
    when String, Symbol
      file_name = "#{arg.to_s.underscore}_helper"
      require_dependency(file_name, "Missing helper file helpers/%s.rb")
      file_name.camelize.constantize
    when Module
      arg
    else
      raise ArgumentError, "helper must be a String, Symbol, or Module"
    end
  end
end