diff options
Diffstat (limited to 'actionmailer/lib/action_mailer/helpers.rb')
| -rw-r--r-- | actionmailer/lib/action_mailer/helpers.rb | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/actionmailer/lib/action_mailer/helpers.rb b/actionmailer/lib/action_mailer/helpers.rb deleted file mode 100644 index ecd8f0f5b6..0000000000 --- a/actionmailer/lib/action_mailer/helpers.rb +++ /dev/null @@ -1,114 +0,0 @@ -require 'active_support/dependencies' - -module ActionMailer - module Helpers #:nodoc: - 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 - - module ClassMethods - # Makes all the (instance) methods in the helper module available to templates rendered through this controller. - # See ActionView::Helpers (link:classes/ActionView/Helpers.html) for more about making your own helper modules - # available to the templates. - def add_template_helper(helper_module) #:nodoc: - master_helper_module.module_eval "include #{helper_module}" - end - - # Declare a helper: - # helper :foo - # requires 'foo_helper' and includes FooHelper in the template class. - # helper FooHelper - # includes FooHelper in the template class. - # helper { def foo() "#{bar} is the very best" end } - # evaluates the block in the template class, adding method +foo+. - # helper(:three, BlindHelper) { def mice() 'mice' end } - # does all three. - def helper(*args, &block) - args.flatten.each do |arg| - case arg - when Module - add_template_helper(arg) - when String, Symbol - file_name = arg.to_s.underscore + '_helper' - class_name = file_name.camelize - - require_dependency(file_name, "Missing helper file helpers/%s.rb") - # begin - # require_dependency(file_name) - # rescue LoadError => load_error - # requiree = / -- (.*?)(\.rb)?$/.match(load_error.message).to_a[1] - # msg = (requiree == file_name) ? "Missing helper file helpers/#{file_name}.rb" : "Can't load file: #{requiree}" - # raise LoadError.new(msg).copy_blame!(load_error) - # end - - add_template_helper(class_name.constantize) - else - raise ArgumentError, 'helper expects String, Symbol, or Module argument' - end - end - - # Evaluate block in template class if given. - master_helper_module.module_eval(&block) if block_given? - end - - # Declare a controller method as a helper. For example, - # helper_method :link_to - # def link_to(name, options) ... end - # makes the link_to controller method available in the view. - def helper_method(*methods) - methods.flatten.each do |method| - master_helper_module.module_eval <<-end_eval - def #{method}(*args, &block) - controller.__send__(%(#{method}), *args, &block) - end - end_eval - end - end - - # Declare a controller attribute as a helper. For example, - # helper_attr :name - # attr_accessor :name - # makes the name and name= controller methods available in the view. - # The is a convenience wrapper for helper_method. - def helper_attr(*attrs) - attrs.flatten.each { |attr| helper_method(attr, "#{attr}=") } - end - - private - def inherited_with_helper(child) - inherited_without_helper(child) - begin - child.master_helper_module = Module.new - child.master_helper_module.__send__(:include, master_helper_module) - child.helper child.name.to_s.underscore - rescue MissingSourceFile => e - raise unless e.is_missing?("#{child.name.to_s.underscore}_helper") - end - end - end - - private - # Extend the template class instance with our controller's helper module. - def initialize_template_class_with_helper(assigns) - initialize_template_class_without_helper(assigns).tap do |template| - template.extend self.class.master_helper_module - end - end - end -end |