instance method `modules_for_helpers`

Ruby on Rails 4.0.13

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

modules_for_helpers(args)

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.

Parameters

args req

Source

# File actionpack/lib/abstract_controller/helpers.rb, line 129
      def modules_for_helpers(args)
        args.flatten.map! do |arg|
          case arg
          when String, Symbol
            file_name = "#{arg.to_s.underscore}_helper"
            begin
              require_dependency(file_name)
            rescue LoadError => e
              raise MissingHelperError.new(e, file_name)
            end
            file_name.camelize.constantize
          when Module
            arg
          else
            raise ArgumentError, "helper must be a String, Symbol, or Module"
          end
        end
      end

Defined in actionpack/lib/abstract_controller/helpers.rb line 129 · View on GitHub · Improve this page · Find usages on GitHub

Defined in AbstractController::Helpers::ClassMethods

Signature

Parameters

Returns

Parameters