Declares helper accessors for controller attributes. For example, the following adds new name and name= instance methods to a controller and makes them available to the view:
helper_attr :name attr_accessor :name
*attrs | Names of attributes to be converted |
into helpers.
# File lib/action_controller/metal/helpers.rb, line 80 80: def helper_attr(*attrs) 81: attrs.flatten.each { |attr| helper_method(attr, "#{attr}=") } 82: end
Provides a proxy to access helpers methods from outside the view.
# File lib/action_controller/metal/helpers.rb, line 85 85: def helpers 86: @helper_proxy ||= ActionView::Base.new.extend(_helpers) 87: end
Extract helper names from files in app/helpers/**/*_helper.rb
# File lib/action_controller/metal/helpers.rb, line 105 105: def all_application_helpers 106: helpers = [] 107: Array.wrap(helpers_path).each do |path| 108: extract = /^#{Regexp.quote(path.to_s)}\/?(.*)_helper.rb$/ 109: helpers += Dir["#{path}/**/*_helper.rb"].map { |file| file.sub(extract, '\1') } 110: end 111: helpers.sort! 112: helpers.uniq! 113: helpers 114: end
Overwrite modules_for_helpers to accept :all as argument, which loads all helpers in helpers_dir.
args | A list of helpers |
Array[Module] | A normalized list of modules for the list of |
helpers provided.
# File lib/action_controller/metal/helpers.rb, line 99 99: def modules_for_helpers(args) 100: args += all_application_helpers if args.delete(:all) 101: super(args) 102: end
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