diff options
Diffstat (limited to 'activesupport/lib/active_support/configurable.rb')
| -rw-r--r-- | activesupport/lib/active_support/configurable.rb | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/activesupport/lib/active_support/configurable.rb b/activesupport/lib/active_support/configurable.rb index 307ae40398..16d2a6a290 100644 --- a/activesupport/lib/active_support/configurable.rb +++ b/activesupport/lib/active_support/configurable.rb @@ -13,7 +13,7 @@ module ActiveSupport self.class.compile_methods!(keys) end - # compiles reader methods so we don't have to go through method_missing + # Compiles reader methods so we don't have to go through method_missing. def self.compile_methods!(keys) keys.reject { |m| method_defined?(m) }.each do |key| class_eval <<-RUBY, __FILE__, __LINE__ + 1 @@ -39,7 +39,7 @@ module ActiveSupport # Allows you to add shortcut so that you don't have to refer to attribute # through config. Also look at the example for config to contrast. - # + # # Defines both class and instance config accessors. # # class User @@ -47,16 +47,16 @@ module ActiveSupport # config_accessor :allowed_access # end # - # User.allowed_access # => nil + # User.allowed_access # => nil # User.allowed_access = false - # User.allowed_access # => false - # + # User.allowed_access # => false + # # user = User.new # user.allowed_access # => false # user.allowed_access = true # user.allowed_access # => true # - # User.allowed_access # => false + # User.allowed_access # => false # # The attribute name must be a valid method name in Ruby. # @@ -91,7 +91,18 @@ module ActiveSupport # User.allowed_access # => false # # User.new.allowed_access = true # => NoMethodError - # User.new.allowed_access # => NoMethodError + # User.new.allowed_access # => NoMethodError + # + # Also you can pass a block to set up the attribute with a default value. + # + # class User + # include ActiveSupport::Configurable + # config_accessor :hair_colors do + # [:brown, :black, :blonde, :red] + # end + # end + # + # User.hair_colors # => [:brown, :black, :blonde, :red] def config_accessor(*names) options = names.extract_options! @@ -108,6 +119,7 @@ module ActiveSupport class_eval reader, __FILE__, reader_line unless options[:instance_reader] == false class_eval writer, __FILE__, writer_line unless options[:instance_writer] == false end + send("#{name}=", yield) if block_given? end end end |