public static List<Coach> getAllCoach() { return Coach.listAll(Coach.class); }
public static List<Coach> getCoachByTeamId(long id) { return Coach.find(Coach.class, "team_id = ?", String.valueOf(id)); }
public static void updateCoach(Coach coach) { if (coach != null) { coach.save(); } }
public static Coach getCoachById(long id) { return Coach.findById(Coach.class, id); }