def add_vehicle_location_histories_helper(sess, chunk, n):
rides = sess.query(Ride).filter_by(city=city).all()
histories = []
for i in range(chunk, min(chunk + chunk_size, num_histories)):
latlong = MovRGenerator.generate_random_latlong()
histories.append(
VehicleLocationHistory(city=city,
ride_id=random.choice(rides).id,
lat=latlong["lat"],
long=latlong["long"]))
sess.bulk_save_objects(histories)
def update_ride_location_helper(session, city, ride_id, lat, long):
h = VehicleLocationHistory(city=city,
ride_id=ride_id,
lat=lat,
long=long)
session.add(h)