História revízii

Autor SHA1 Správa Dátum
  Yifang Deng 0e5d5ecb81 refactor: replace print statements with logging for better error tracking 2 mesiacov pred
  Timothy Jaeryang Baek aa442f694b enh: validate user id before saving group 3 mesiacov pred
  Timothy Jaeryang Baek d3d161f723 wip 5 mesiacov pred