def decode_alarm_obj(self, obj):
try:
alarm = Alarm(str(obj["id"]),
int(obj["hour"]),
int(obj["minute"]),
tag=str(obj["tag"]),
editable=bool(obj["editable"]))
if "days" in obj:
alarm.days = Alarm.from_day_str(str(obj["days"]))
if ("day" in obj) and \
("month" in obj) and \
("year" in obj):
alarm.date = date(int(obj["year"]),
int(obj["month"]),
int(obj["day"]))
return alarm
except KeyError:
raise ValueError
