diff options
author | David Heinemeier Hansson <david@loudthinking.com> | 2006-08-03 18:47:43 +0000 |
---|---|---|
committer | David Heinemeier Hansson <david@loudthinking.com> | 2006-08-03 18:47:43 +0000 |
commit | 9d00b0ce858a6f642089a477e7d39fb3f9cf6777 (patch) | |
tree | 1da460b1b198591eca304b91e35eb1d27c42e9b4 /activesupport/lib/active_support/core_ext/module/aliasing.rb | |
parent | b5c2366569573c76ab9dcbf871a4a00b91d7f141 (diff) | |
download | rails-9d00b0ce858a6f642089a477e7d39fb3f9cf6777.tar.gz rails-9d00b0ce858a6f642089a477e7d39fb3f9cf6777.tar.bz2 rails-9d00b0ce858a6f642089a477e7d39fb3f9cf6777.zip |
Added Module#alias_attribute [Jamis/DHH]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4653 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activesupport/lib/active_support/core_ext/module/aliasing.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/module/aliasing.rb | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/module/aliasing.rb b/activesupport/lib/active_support/core_ext/module/aliasing.rb index 09209884b6..a4c7e539e3 100644 --- a/activesupport/lib/active_support/core_ext/module/aliasing.rb +++ b/activesupport/lib/active_support/core_ext/module/aliasing.rb @@ -27,4 +27,31 @@ class Module alias_method "#{aliased_target}_without_#{feature}#{punctuation}", target alias_method target, "#{aliased_target}_with_#{feature}#{punctuation}" end + + # Allows you to make aliases for attributes, which includes + # getter, setter, and query methods. + # + # Example: + # + # class Content < ActiveRecord::Base + # # has a title attribute + # end + # + # class Email < ActiveRecord::Base + # alias_attribute :subject, :title + # end + # + # e = Email.find(1) + # e.title # => "Superstars" + # e.subject # => "Superstars" + # e.subject? # => true + # e.subject = "Megastars" + # e.title # => "Megastars" + def alias_attribute(new_name, old_name) + module_eval <<-STR, __FILE__, __LINE__+1 + def #{new_name}; #{old_name}; end + def #{new_name}?; #{old_name}?; end + def #{new_name}=(v); self.#{old_name} = v; end + STR + end end |