SomeModel.get(id) always returns nil

[vm]

Hello,

i'm trying to upgrade to 1.1 from 1.0.1 in our project, but model always returns nil when getting it by id with SomeModel.get(id) method. In log i can see that it produces  proper query. SomeModel.first(:id => id) returns object as expected. SomeModel.get! raise 'Could not find SomeModel with key [79]'

gemfile:

RAILS_VERSION = '~> 3.0.9'

DM_VERSION    = '~> 1.1.0'

gem 'rails',              RAILS_VERSION

gem 'activesupport',      RAILS_VERSION, :require => 'active_support'

gem 'actionpack',         RAILS_VERSION, :require => 'action_pack'

gem 'railties',           RAILS_VERSION, :require => 'rails'

gem 'dm-rails' ,          '~> 1.1.0'

gem 'dm-oracle-adapter', DM_VERSION

gem 'ruby-oci8'

gem 'ruby-plsql'

gem 'dm-validations',       DM_VERSION

gem 'dm-aggregates',        DM_VERSION