diff options
Diffstat (limited to 'activemodel/lib/active_model/conversion.rb')
| -rw-r--r-- | activemodel/lib/active_model/conversion.rb | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/activemodel/lib/active_model/conversion.rb b/activemodel/lib/active_model/conversion.rb index 80a3ba51c3..c7c805f1a2 100644 --- a/activemodel/lib/active_model/conversion.rb +++ b/activemodel/lib/active_model/conversion.rb @@ -39,11 +39,9 @@ module ActiveModel # Returns an Enumerable of all key attributes if any is set, regardless # if the object is persisted or not. - # - # Note the default implementation uses persisted? just because all objects - # in Ruby 1.8.x responds to <tt>:id</tt>. def to_key - persisted? ? [id] : nil + key = respond_to?(:id) && id + key ? [key] : nil end # Returns a string representing the object's key suitable for use in URLs, |