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rails--rails/actionpack/lib/action_controller/metal/hide_actions.rb
José Valim b67ec8ba20 class_attribute is not a direct replacement of class_inheritable_*.
If you are setting a hash or an array in class_attribute or you need
to freeze it, to ensure people won't modify it in place or you need
to dup it on inheritance.
2010-06-10 19:39:09 +02:00

48 lines
1.4 KiB
Ruby

require 'active_support/core_ext/class/attribute'
module ActionController
# ActionController::HideActions adds the ability to prevent public methods on a controller
# to be called as actions.
module HideActions
extend ActiveSupport::Concern
included do
class_attribute :hidden_actions
self.hidden_actions = Set.new.freeze
end
private
# Overrides AbstractController::Base#action_method? to return false if the
# action name is in the list of hidden actions.
def method_for_action(action_name)
self.class.visible_action?(action_name) && super
end
module ClassMethods
# Sets all of the actions passed in as hidden actions.
#
# ==== Parameters
# *args<#to_s>:: A list of actions
def hide_action(*args)
self.hidden_actions = hidden_actions.dup.merge(args.map(&:to_s)).freeze
end
def inherited(klass)
klass.class_eval { @visible_actions = {} }
super
end
def visible_action?(action_name)
return @visible_actions[action_name] if @visible_actions.key?(action_name)
@visible_actions[action_name] = !hidden_actions.include?(action_name)
end
# Overrides AbstractController::Base#action_methods to remove any methods
# that are listed as hidden methods.
def action_methods
@action_methods ||= Set.new(super.reject { |name| hidden_actions.include?(name) })
end
end
end
end