How to cope with 'org.postgresql.util.PSQLException: No value specified for parameter 1'?

Question

Upon registration to my Grails app, the user receives an email with a confirmation link. Clicking that link, takes her to the according \'enable\' action.

This worked fl

Answer 1

As outlined in the mentioned JIRA issue the problem stemmed from a unique-constraint which was set for a mapped class.

Moving the unique-contraint into the Mapping DC resolved the issue.