Session.deleteSessionById(id) -- delete problematic relations first (so that there is no exception thrown)
Session.deleteSessionById(id) -- delete problematic relations first (so that there is no exception thrown)

UniTime/unitime,UniTime/unitime,rafati/unitime,sktoo/timetabling-system-,UniTime/unitime,sktoo/timetabling-system-,rafati/unitime,maciej-zygmunt/unitime,maciej-zygmunt/unitime,nikeshmhr/unitime,zuzanamullerova/unitime,nikeshmhr/unitime,sktoo/timetabling-system-,zuzanamullerova/unitime,nikeshmhr/unitime,zuzanamullerova/unitime,maciej-zygmunt/unitime,rafati/unitime