--- a/include/db/trip-dao.inc.php +++ b/include/db/trip-dao.inc.php @@ -1,115 +1,243 @@ <?php + +/* + * Copyright 2010,2011 Alexander Sadleir + + Licensed under the Apache License, Version 2.0 (the 'License'); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an 'AS IS' BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + */ + function getTrip($tripID) { global $conn; - $query = "Select * from trips where trip_id = '$tripID' join routes on trips.route_id = routes.route_id LIMIT 1"; - debug($query,"database"); - $result = pg_query($conn, $query); - if (!$result) { - databaseError(pg_result_error($result)); - return Array(); - } - return pg_fetch_assoc($result); - } -function getTripShape() { - /* def handle_json_GET_tripstoptimes(self, params): - schedule = self.server.schedule - try: - trip = schedule.GetTrip(params.get('trip')) - except KeyError: - # if a non-existent trip is searched for, the return nothing - return - time_stops = trip.GetTimeInterpolatedStops() - stops = [] - times = [] - for arr,ts,is_timingpoint in time_stops: - stops.append(StopToTuple(ts.stop)) - times.append(arr) - return [stops, times] - - def handle_json_GET_tripshape(self, params): - schedule = self.server.schedule - try: - trip = schedule.GetTrip(params.get('trip')) - except KeyError: - # if a non-existent trip is searched for, the return nothing - return - points = [] - if trip.shape_id: - shape = schedule.GetShape(trip.shape_id) - for (lat, lon, dist) in shape.points: - points.append((lat, lon)) - else: - time_stops = trip.GetTimeStops() - for arr,dep,stop in time_stops: - points.append((stop.stop_lat, stop.stop_lon)) - return points*/ -} -function getTimeInterpolatedTrip($tripID) { - /* rv = [] - - stoptimes = self.GetStopTimes() - # If there are no stoptimes [] is the correct return value but if the start - # or end are missing times there is no correct return value. - if not stoptimes: - return [] - if (stoptimes[0].GetTimeSecs() is None or - stoptimes[-1].GetTimeSecs() is None): - raise ValueError("%s must have time at first and last stop" % (self)) - - cur_timepoint = None - next_timepoint = None - distance_between_timepoints = 0 - distance_traveled_between_timepoints = 0 - - for i, st in enumerate(stoptimes): - if st.GetTimeSecs() != None: - cur_timepoint = st - distance_between_timepoints = 0 - distance_traveled_between_timepoints = 0 - if i + 1 < len(stoptimes): - k = i + 1 - distance_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[k-1].stop, stoptimes[k].stop) - while stoptimes[k].GetTimeSecs() == None: - k += 1 - distance_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[k-1].stop, stoptimes[k].stop) - next_timepoint = stoptimes[k] - rv.append( (st.GetTimeSecs(), st, True) ) - else: - distance_traveled_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[i-1].stop, st.stop) - distance_percent = distance_traveled_between_timepoints / distance_between_timepoints - total_time = next_timepoint.GetTimeSecs() - cur_timepoint.GetTimeSecs() - time_estimate = distance_percent * total_time + cur_timepoint.GetTimeSecs() - rv.append( (int(round(time_estimate)), st, False) ) - - return rv*/ -} -function getTimeInterpolatedTripAtStop($trip_id, $stop_sequence) { - foreach(getTimeInterpolatedTrip($tripID) as $tripStop) { - if ($tripStop['stop_sequence'] == $stop_sequence) return $tripStop; - } - return Array(); + $query = 'Select * from trips + join routes on trips.route_id = routes.route_id + where trip_id = :tripID + LIMIT 1'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + + return Array(); + } + return $query->fetch(PDO :: FETCH_ASSOC); +} + +function getTripStops($tripID) { + global $conn; + $query = 'SELECT stops.stop_id, stop_name, ST_AsKML(position) as positionkml, + stop_sequence, trips.trip_id +FROM stop_times +join trips on trips.trip_id = stop_times.trip_id +join stops on stops.stop_id = stop_times.stop_id +WHERE trips.trip_id = :tripID ORDER BY stop_sequence'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + return $query->fetchAll(); +} + +function getTripHasStop($tripID, $stopID) { + global $conn; + $query = 'SELECT stop_id +FROM stop_times +join trips on trips.trip_id = stop_times.trip_id +WHERE trips.trip_id = :tripID and stop_times.stop_id = :stopID'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->bindParam(':stopID', $stopID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + return ($query->fetchColumn() > 0); +} + +function getTripShape($tripID) { + global $conn; + $query = 'SELECT ST_AsKML(ST_MakeLine(geometry(a.shape_pt))) as the_route +FROM (SELECT shapes.shape_id,shape_pt from shapes +inner join trips on shapes.shape_id = trips.shape_id +WHERE trips.trip_id = :tripID ORDER BY shape_pt_sequence) as a group by a.shape_id'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + return $query->fetchColumn(0); +} + +function getTripStopTimes($tripID) { + global $conn; + $query = 'SELECT stop_times.trip_id,trip_headsign,arrival_time,stop_times.stop_id + ,stop_lat,stop_lon,stop_name,stop_desc,stop_code, + stop_sequence,service_id,trips.route_id,route_short_name,route_long_name +FROM stop_times +join trips on trips.trip_id = stop_times.trip_id +join routes on trips.route_id = routes.route_id +join stops on stops.stop_id = stop_times.stop_id +WHERE trips.trip_id = :tripID ORDER BY stop_sequence'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + $stopTimes = $query->fetchAll(); + return $stopTimes; +} + +function getTripAtStop($tripID, $stop_sequence) { + global $conn; + foreach (getTripStopTimes($tripID) as $tripStop) { + if ($tripStop['stop_sequence'] == $stop_sequence) + return $tripStop; + } + return Array(); } function getTripStartTime($tripID) { - $query = 'SELECT arrival_secs,departure_secs FROM stop_times WHERE trip_id=? ORDER BY stop_sequence LIMIT 1'; - -} - -function viaPointNames($tripid, $stopid) -{ - global $conn; - $query = "SELECT stop_name + global $conn; + $query = 'Select * from stop_times + where trip_id = :tripID + AND arrival_time IS NOT NULL + AND stop_sequence = \'1\''; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + $r = $query->fetch(PDO :: FETCH_ASSOC); + return $r['arrival_time']; +} + +function getTripEndTime($tripID) { + global $conn; + $query = 'SELECT trip_id,max(arrival_time) as arrival_time from stop_times + WHERE stop_times.arrival_time IS NOT NULL and trip_id = :tripID group by trip_id'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + $r = $query->fetch(PDO :: FETCH_ASSOC); + return $r['arrival_time']; +} + +function getTripStartingPoint($tripID) { + global $conn; + $query = 'SELECT stops.stop_id, stops.stop_name, stops.stop_desc + from stop_times inner join stops on stop_times.stop_id = stops.stop_id + WHERE trip_id = :tripID and stop_sequence = \'1\' limit 1'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + $r = $query->fetch(PDO :: FETCH_ASSOC); + return $r; +} + +function getTripDestination($tripID) { + global $conn; + $query = 'SELECT stops.stop_id, stops.stop_name, stops.stop_desc + from stop_times inner join stops on stop_times.stop_id = stops.stop_id + WHERE trip_id = :tripID order by stop_sequence desc limit 1'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + $r = $query->fetch(PDO :: FETCH_ASSOC); + return $r; +} + +function getActiveTrips($time='') { + global $conn; + if ($time == '') { + $time = current_time(); + } + $query = 'Select distinct stop_times.trip_id, start_times.arrival_time as start_time, end_times.arrival_time as end_time from stop_times, (SELECT trip_id,arrival_time from stop_times WHERE stop_times.arrival_time IS NOT NULL +AND stop_sequence = \'1\') as start_times, (SELECT trip_id,max(arrival_time) as arrival_time from stop_times WHERE stop_times.arrival_time IS NOT NULL group by trip_id) as end_times +WHERE start_times.trip_id = end_times.trip_id AND stop_times.trip_id = end_times.trip_id AND :time > start_times.arrival_time AND :time < end_times.arrival_time'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':time', $time); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + return $query->fetchAll(); +} +function getTripLastStop($tripid, $time='') { + global $conn; + if ($time == '') { + $time = current_time(); + } + $query = 'Select trip_id,stops.stop_id,stop_sequence,stop_code,stop_name,stop_lat,stop_lon,arrival_time,(arrival_time - :time::time) as time_diff from stop_times inner join stops on stop_times.stop_id = stops.stop_id WHERE trip_id = :tripid and arrival_time >= :time::time order by stop_sequence limit 2'; + debug($query, 'database'); + $query = $conn->prepare($query); + $query->bindParam(':time', $time); + $query->bindParam(':tripid', $tripid); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + return $query->fetchAll(); +} + +function viaPoints($tripID, $stop_sequence = '') { + global $conn; + $query = 'SELECT stops.stop_id, stop_name, arrival_time FROM stop_times join stops on stops.stop_id = stop_times.stop_id -WHERE stop_times.trip_id = '$tripid' -AND stop_sequence > '$stop_sequence' -AND substr(stop_code,1,2) != 'Wj' ORDER BY stop_sequence"; - debug($query,"database"); - $result = pg_query($conn, $query); - if (!$result) { - databaseError(pg_result_error($result)); - return Array(); - } - $pointNames = pg_fetch_all($result); - return r_implode(", ", $pointNames); -} -?> +WHERE stop_times.trip_id = :tripID +' . ($stop_sequence != '' ? ' AND stop_sequence > :stop_sequence ' : '') . ' ORDER BY stop_sequence'; + debug($query, 'database'); + $query = $conn->prepare($query); + if ($stop_sequence != '') + $query->bindParam(':stop_sequence', $stop_sequence); + $query->bindParam(':tripID', $tripID); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + return $query->fetchAll(); +}