liquid_feedback_frontend: model/rendered_voter

liquid_feedback_frontend

Handle null case

rev	line source
bsw@879	1 RenderedVoterComment = mondelefant.new_class()
bsw@879	2 RenderedVoterComment.table = 'rendered_voter_comment'
bsw@879	3 RenderedVoterComment.primary_key = { "issue_id", "member_id", "format" }