drnic/composite_primary_keys — pull request #125 by maca (2012-10-01 23:58:41+00:00)
Title: Support for #touch method

I was having this issue while trying to touch a record with composite primary keys.

NoMethodError: undefined method `to_sym' for [:state_code, :code]:CompositePrimaryKeys::CompositeKeys

I checked AR implementation and tests to fix the issue. Tested under postgres and sqlite.