cheat sheets.

Cheat Sheet Title: [ no_spaces_alphanumeric_only ]

Cheat Sheet:
ApplicationController helpers in views (putting the methods in ApplicationHelper only makes them available to views, if you need them in controllers AND views, define them in ApplicationController and use the helper_method method) in ApplicationController: helper_method :method_name1, :method_name2, :so_on_and_so_forth View Helpers in Controllers or Models (might make you feel dirty, but if you need to you'll get over it) 1. make a module in /lib: "shared.rb" -- module Shared def shared_help SharedHelper.instance end class SharedHelper include Singleton include ActionView::Helpers::TextHelper include ActionView::Helpers::UrlHelper include ActionView::Helpers::DateHelper include ActionView::Helpers::TagHelper include ActionView::Helpers::NumberHelper # and whatever else you need ... end end 2. include the module in a Controller or Model: include Shared 3. call your view helpers like 'shared_help.method', i.e.: shared_help.mail_to(email_addr) Another way to do it, using a class instead of a module: 1. # create a new file inside lib/ and call it helpers.rb 2. # paste the following: 3. 4. def help 5. Helper.instance 6. end 7. 8. class Helper 9. include Singleton 11. include ActionView::Helpers::DateHelper 12. include ActionView::Helpers::TextHelper 13. end 14. 15. # then in any model or controller: 16. require 'lib/helpers' 17. 18. # to use: 19. # help.name_of_helper 20. # EX: help.pluralize 10, "person" View helpers in email templates use the helper method in your mailer class, like: class Notifier < ActionMailer::Base helper :application # ... your mailer methods end

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