buddycloud/buddycloud-server-java — pull request #162 by lloydwatkin (2014-03-20 16:29:45+00:00)
Title: Allow user to only rate a post once

Only allow a user to rate a post once.

The database query for this work is not ideal, however we can not do the `xpath` checking SQL with __hsqldb__.

Personally I'd prefer tested, working, and slightly suboptimal code than optimal code of unknown state.

Fixes #158