diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/module/aliasing.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/module/aliasing.rb | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/core_ext/module/aliasing.rb b/activesupport/lib/active_support/core_ext/module/aliasing.rb index 1f904377df..5c5875504f 100644 --- a/activesupport/lib/active_support/core_ext/module/aliasing.rb +++ b/activesupport/lib/active_support/core_ext/module/aliasing.rb @@ -9,11 +9,17 @@ class Module # alias_method_chain :foo, :feature # # And both aliases are set up for you. + # + # A punctuation is moved to the end on predicates or bang methods. + # + # alias_method_chain :foo?, :feature + # + # generates "foo_without_feature?" method for old one, + # and expects "foo_with_feature?" method for new one. def alias_method_chain(target, feature) - # Strip out punctuation on predicates or bang methods since - # e.g. target?_without_feature is not a valid method name. + punctuation = target.to_s.scan(/[?!]/).first aliased_target = target.to_s.sub(/[?!]/, '') - alias_method "#{aliased_target}_without_#{feature}", target - alias_method target, "#{aliased_target}_with_#{feature}" + alias_method "#{aliased_target}_without_#{feature}#{punctuation}", target + alias_method target, "#{aliased_target}_with_#{feature}#{punctuation}" end end |