def get_departures_at_stop(stop_id):
"""
This method returns a list of departures times for routes with departures
from the specified stop as given by the 511.org real-time departure api
(http://511.org/developer-resources_transit-api.asp).
"""
stop = Stop.query.filter_by(stop_id=stop_id).first()
if stop:
return jsonify({'departures': departures_at_stop(stop.stop_id)})
return jsonify({'error': 'no stop with id {0}'.format(stop_id)})
def get_departures(lat, lon):
"""
This method returns a list of departures times for routes with departures
from stops near the specified latitude-longitude coordinates as given by
the 511.org real-time departure api
(http://511.org/developer-resources_transit-api.asp).
This method can optionally specify a maximum distance (in miles) a stop can
be from the input coordinates. If none is specified the default is 1 mile.
"""
# This method can optionally specify a maximum distance a stop can
# be from the input coordinates.
distance = 1.0
distance_list = request.args.getlist('distance')
if 0 < len(distance_list):
distance = float(distance_list[0])
stops = stops_near_point(lat, lon, distance)
if stops:
departures = [departures_at_stop(stop['stop_id']) for stop in stops]
return jsonify({'departures': departures})
return jsonify({'error': 'No stops near ({0}, {1})'.format(lat, lon)})
