def stats(conf):
"""
Fetch some basic stats from the system.
"""
num_groups = Group.all().count()
num_slots = len(TimeSlot.all(conf)) * 2 # DIR_A and DIR_B
return {
'groups': num_groups,
'slots': num_slots,
'free_slots': num_slots - num_groups,
'load': float(num_groups) / num_slots
}
def _generate_state_list(station):
"""
Generates a simple Python dictionary with current group "states".
"""
if not station:
return []
groups = Group.all().order_by(Group.order)
state_info = DB.session.query(GroupStation).filter(
GroupStation.station == station)
state_info_map = {state.group: state for state in state_info}
output = []
for group in groups:
si = state_info_map.get(group)
output.append({
"stationId": si.station_id if si else 0,
"groupId": group.id,
"groupName": group.name,
"formScore": (si.form_score or 0) if si else 0,
"stationScore": (si.score or 0) if si else 0,
"state": si.state if si else 0
})
output = sorted(output, key=lambda x: (x['state'], x['groupName']))
return output
