lml/ost — pull request #295 by kevinburleigh75 (2013-09-04 23:43:24+00:00)
Title: Changes StudentExercise follow_up_answer from string to text

The StudentExercise follow_up_answer field was implemented with a database string type, which limits inputs to 255 characters. It is now a text type, which has (essentially) unlimited length.

Unfortunately, previously-entered responses which exceeded the 255 characters limit are truncated and cannot be readily recovered (though the logs might provide the missing information).