failing test
use try for when the assoc_data is possibly nil
rubocop test/action_controller/json_api/deserialization_test.rb -a
attempt to work on rails-master
account for rails/master having instead of nil for assoc_data
added changelog
The JSON API adapater dasherizes every key, but the deserializer left the keys
unaltered. Thus, the client had to send underscored keys in the request body in
order for Rails to properly match sent values to model attributes.
This commit adds automatic key transformation on deserialization. Per default the
deserializer transforms the keys to underscore, but this behaviour can also be
changed by including `key_transform` in the deserializer options.
