def get_flight_path2(pilot, last_update=None):
query = DBSession.query(TrackingFix)
query = query.filter(and_(TrackingFix.pilot == pilot,
TrackingFix.location != None,
TrackingFix.altitude != None,
TrackingFix.max_age_filter(12)))
if pilot.tracking_delay > 0 and not pilot.is_readable(request.identity):
query = query.filter(TrackingFix.delay_filter(pilot.tracking_delay))
query = query.order_by(TrackingFix.time)
start_fix = query.first()
if not start_fix:
return None
start_time = start_fix.time.hour * 3600 + start_fix.time.minute * 60 + start_fix.time.second
if last_update:
query = query.filter(TrackingFix.time >= start_fix.time +
timedelta(seconds=(last_update - start_time)))
result = []
for fix in query:
location = fix.location
if location is None:
continue
time_delta = fix.time - start_fix.time
time = start_time + time_delta.days * 86400 + time_delta.seconds
result.append((time, location.latitude, location.longitude,
fix.altitude, fix.engine_noise_level))
return result
def _get_flight_path2(pilot, last_update=None):
query = TrackingFix.query() \
.filter(and_(TrackingFix.pilot == pilot,
TrackingFix.location != None,
TrackingFix.altitude != None,
TrackingFix.max_age_filter(12)))
if pilot.tracking_delay > 0 and not pilot.is_readable(g.current_user):
query = query.filter(TrackingFix.delay_filter(pilot.tracking_delay))
query = query.order_by(TrackingFix.time)
start_fix = query.first()
if not start_fix:
return None
start_time = start_fix.time.hour * 3600 + start_fix.time.minute * 60 + start_fix.time.second
if last_update:
query = query.filter(TrackingFix.time >= start_fix.time +
timedelta(seconds=(last_update - start_time)))
result = []
for fix in query:
location = fix.location
if location is None:
continue
time_delta = fix.time - start_fix.time
time = start_time + time_delta.days * 86400 + time_delta.seconds
result.append((time, location.latitude, location.longitude,
fix.altitude, fix.engine_noise_level, fix.elevation))
return result
def _get_flight_path2(pilot, last_update=None):
query = TrackingFix.query() \
.filter(and_(TrackingFix.pilot == pilot,
TrackingFix.location != None,
TrackingFix.altitude != None,
TrackingFix.max_age_filter(12)))
if pilot.tracking_delay > 0 and not pilot.is_readable(g.current_user):
query = query.filter(TrackingFix.delay_filter(pilot.tracking_delay))
query = query.order_by(TrackingFix.time)
start_fix = query.first()
if not start_fix:
return None
start_time = start_fix.time.hour * 3600 + start_fix.time.minute * 60 + start_fix.time.second
if last_update:
query = query.filter(TrackingFix.time >= start_fix.time +
timedelta(seconds=(last_update - start_time)))
result = []
for fix in query:
location = fix.location
if location is None:
continue
time_delta = fix.time - start_fix.time
time = start_time + time_delta.days * 86400 + time_delta.seconds
result.append(FlightPathFix(datetime=fix.time,
seconds_of_day=time,
location={'latitude': location.latitude,
'longitude': location.longitude},
gps_altitude=fix.altitude,
enl=fix.engine_noise_level,
track=fix.track,
groundspeed=fix.ground_speed,
tas=fix.airspeed,
elevation=fix.elevation))
return result
def trafficRequestReceived(self, host, port, key, payload):
if len(payload) != 8: return
pilot = User.by_tracking_key(key)
if pilot is None:
log("%s TRAFFIC_REQUEST unknown pilot (key: %x)" % (host, key))
return
data = struct.unpack('!II', payload)
or_filters = []
flags = data[0]
if flags & TRAFFIC_FLAG_FOLLOWEES:
subq = db.session \
.query(Follower.destination_id) \
.filter(Follower.source_id == pilot.id) \
.subquery()
or_filters.append(TrackingFix.pilot_id.in_(subq))
if flags & TRAFFIC_FLAG_CLUB:
subq = db.session \
.query(User.id) \
.filter(User.club_id == pilot.club_id) \
.subquery()
or_filters.append(TrackingFix.pilot_id.in_(subq))
if len(or_filters) == 0:
return
# Add a db.Column to the inner query with
# numbers ordered by time for each pilot
row_number = db.over(db.func.row_number(),
partition_by=TrackingFix.pilot_id,
order_by=TrackingFix.time.desc())
# Create inner query
subq = db.session \
.query(TrackingFix.id, row_number.label('row_number')) \
.join(TrackingFix.pilot) \
.filter(TrackingFix.pilot_id != pilot.id) \
.filter(TrackingFix.max_age_filter(2)) \
.filter(TrackingFix.delay_filter(User.tracking_delay_interval())) \
.filter(TrackingFix.location_wkt != None) \
.filter(TrackingFix.altitude != None) \
.filter(or_(*or_filters)) \
.subquery()
# Create outer query that orders by time and
# only selects the latest fix
query = TrackingFix.query() \
.filter(TrackingFix.id == subq.c.id) \
.filter(subq.c.row_number == 1) \
.order_by(TrackingFix.time.desc()) \
.limit(32)
response = ''
count = 0
for fix in query:
location = fix.location
if location is None: continue
t = fix.time
t = t.hour * 3600000 + t.minute * 60000 + t.second * 1000 + t.microsecond / 1000
response += struct.pack('!IIiihHI', fix.pilot_id, t,
int(location.latitude * 1000000),
int(location.longitude * 1000000),
int(fix.altitude), 0, 0)
count += 1
response = struct.pack('!HBBI', 0, 0, count, 0) + response
response = struct.pack('!IHHQ', MAGIC, 0, TYPE_TRAFFIC_RESPONSE, 0) + response
response = set_crc(response)
self.socket.sendto(response, (host, port))
log("%s TRAFFIC_REQUEST %s -> %d locations" %
(host, unicode(pilot).encode('utf8', 'ignore'), count))
def trafficRequestReceived(self, host, port, key, payload):
if len(payload) != 8: return
pilot = User.by_tracking_key(key)
if pilot is None:
log("%s TRAFFIC_REQUEST unknown pilot (key: %x)" % (host, key))
return
data = struct.unpack('!II', payload)
or_filters = []
flags = data[0]
if flags & TRAFFIC_FLAG_FOLLOWEES:
subq = db.session \
.query(Follower.destination_id) \
.filter(Follower.source_id == pilot.id) \
.subquery()
or_filters.append(TrackingFix.pilot_id.in_(subq))
if flags & TRAFFIC_FLAG_CLUB:
subq = db.session \
.query(User.id) \
.filter(User.club_id == pilot.club_id) \
.subquery()
or_filters.append(TrackingFix.pilot_id.in_(subq))
if len(or_filters) == 0:
return
# Add a db.Column to the inner query with
# numbers ordered by time for each pilot
row_number = db.over(db.func.row_number(),
partition_by=TrackingFix.pilot_id,
order_by=TrackingFix.time.desc())
# Create inner query
subq = db.session \
.query(TrackingFix.id, row_number.label('row_number')) \
.join(TrackingFix.pilot) \
.filter(TrackingFix.pilot_id != pilot.id) \
.filter(TrackingFix.max_age_filter(2)) \
.filter(TrackingFix.delay_filter(User.tracking_delay_interval())) \
.filter(TrackingFix.location_wkt != None) \
.filter(TrackingFix.altitude != None) \
.filter(or_(*or_filters)) \
.subquery()
# Create outer query that orders by time and
# only selects the latest fix
query = TrackingFix.query() \
.filter(TrackingFix.id == subq.c.id) \
.filter(subq.c.row_number == 1) \
.order_by(TrackingFix.time.desc()) \
.limit(32)
response = ''
count = 0
for fix in query:
location = fix.location
if location is None: continue
t = fix.time
t = t.hour * 3600000 + t.minute * 60000 + t.second * 1000 + t.microsecond / 1000
response += struct.pack('!IIiihHI', fix.pilot_id, t,
int(location.latitude * 1000000),
int(location.longitude * 1000000),
int(fix.altitude), 0, 0)
count += 1
response = struct.pack('!HBBI', 0, 0, count, 0) + response
response = struct.pack('!IHHQ', MAGIC, 0, TYPE_TRAFFIC_RESPONSE,
0) + response
response = set_crc(response)
self.socket.sendto(response, (host, port))
log("%s TRAFFIC_REQUEST %s -> %d locations" %
(host, unicode(pilot).encode('utf8', 'ignore'), count))