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author | David Heinemeier Hansson <david@loudthinking.com> | 2014-08-07 16:10:20 -0700 |
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committer | David Heinemeier Hansson <david@loudthinking.com> | 2014-08-07 16:10:20 -0700 |
commit | 089661b69ad055cab68ea860c085c7f852da3972 (patch) | |
tree | a39fe35f3c399b199bdca8490724b451761a1cba /activerecord/lib/active_record/attribute_methods/primary_key.rb | |
parent | cc1de71bfaced172fe00a66fd381da69d9528e8b (diff) | |
parent | e81453ef92b37156dafc092093106c8e8b87b268 (diff) | |
download | rails-089661b69ad055cab68ea860c085c7f852da3972.tar.gz rails-089661b69ad055cab68ea860c085c7f852da3972.tar.bz2 rails-089661b69ad055cab68ea860c085c7f852da3972.zip |
Merge branch 'master' of github.com:rails/rails
Diffstat (limited to 'activerecord/lib/active_record/attribute_methods/primary_key.rb')
-rw-r--r-- | activerecord/lib/active_record/attribute_methods/primary_key.rb | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/primary_key.rb b/activerecord/lib/active_record/attribute_methods/primary_key.rb index cadad60ddd..9bd333bbac 100644 --- a/activerecord/lib/active_record/attribute_methods/primary_key.rb +++ b/activerecord/lib/active_record/attribute_methods/primary_key.rb @@ -39,6 +39,12 @@ module ActiveRecord read_attribute_before_type_cast(self.class.primary_key) end + # Returns the primary key previous value. + def id_was + sync_with_transaction_state + attribute_was(self.class.primary_key) + end + protected def attribute_method?(attr_name) @@ -54,7 +60,7 @@ module ActiveRecord end end - ID_ATTRIBUTE_METHODS = %w(id id= id? id_before_type_cast).to_set + ID_ATTRIBUTE_METHODS = %w(id id= id? id_before_type_cast id_was).to_set def dangerous_attribute_method?(method_name) super && !ID_ATTRIBUTE_METHODS.include?(method_name) |