| <?php | <?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($tripID) { | function getTrip($tripID) { |
| /* def handle_json_GET_triprows(self, params): | global $conn; |
| """Return a list of rows from the feed file that are related to this | $query = "Select * from trips |
| trip.""" | join routes on trips.route_id = routes.route_id |
| schedule = self.server.schedule | where trip_id = :tripID |
| try: | LIMIT 1"; |
| trip = schedule.GetTrip(params.get('trip', None)) | debug($query, "database"); |
| except KeyError: | $query = $conn->prepare($query); |
| # if a non-existent trip is searched for, the return nothing | $query->bindParam(":tripID", $tripID); |
| return | $query->execute(); |
| route = schedule.GetRoute(trip.route_id) | if (!$query) { |
| trip_row = dict(trip.iteritems()) | databaseError($conn->errorInfo()); |
| route_row = dict(route.iteritems()) | |
| return [['trips.txt', trip_row], ['routes.txt', route_row]] | |
| */ | |
| } | |
| 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): | return Array(); |
| schedule = self.server.schedule | } |
| try: | return $query->fetch(PDO :: FETCH_ASSOC); |
| trip = schedule.GetTrip(params.get('trip')) | |
| except KeyError: | |
| # if a non-existent trip is searched for, the return nothing | |
| return | |
| points = [] | |
| if trip.shape_id: | |
| shape = schedule.GetShape(trip.shape_id) | |
| for (lat, lon, dist) in shape.points: | |
| points.append((lat, lon)) | |
| else: | |
| time_stops = trip.GetTimeStops() | |
| for arr,dep,stop in time_stops: | |
| points.append((stop.stop_lat, stop.stop_lon)) | |
| return points*/ | |
| } | |
| function tripStopTimes($tripID, $after_time, $limit) { | |
| /* rv = [] | |
| stoptimes = self.GetStopTimes() | |
| # If there are no stoptimes [] is the correct return value but if the start | |
| # or end are missing times there is no correct return value. | |
| if not stoptimes: | |
| return [] | |
| if (stoptimes[0].GetTimeSecs() is None or | |
| stoptimes[-1].GetTimeSecs() is None): | |
| raise ValueError("%s must have time at first and last stop" % (self)) | |
| cur_timepoint = None | |
| next_timepoint = None | |
| distance_between_timepoints = 0 | |
| distance_traveled_between_timepoints = 0 | |
| for i, st in enumerate(stoptimes): | |
| if st.GetTimeSecs() != None: | |
| cur_timepoint = st | |
| distance_between_timepoints = 0 | |
| distance_traveled_between_timepoints = 0 | |
| if i + 1 < len(stoptimes): | |
| k = i + 1 | |
| distance_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[k-1].stop, stoptimes[k].stop) | |
| while stoptimes[k].GetTimeSecs() == None: | |
| k += 1 | |
| distance_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[k-1].stop, stoptimes[k].stop) | |
| next_timepoint = stoptimes[k] | |
| rv.append( (st.GetTimeSecs(), st, True) ) | |
| else: | |
| distance_traveled_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[i-1].stop, st.stop) | |
| distance_percent = distance_traveled_between_timepoints / distance_between_timepoints | |
| total_time = next_timepoint.GetTimeSecs() - cur_timepoint.GetTimeSecs() | |
| time_estimate = distance_percent * total_time + cur_timepoint.GetTimeSecs() | |
| rv.append( (int(round(time_estimate)), st, False) ) | |
| return rv*/ | |
| } | } |
| function tripStartTime($tripID) { | function getTripShape($tripID) { |
| $query = 'SELECT arrival_secs,departure_secs FROM stop_times WHERE trip_id=? ORDER BY stop_sequence LIMIT 1'; | // todo, use shapes table if shape_id specified |
| global $conn; | |
| $query = "SELECT ST_AsKML(ST_MakeLine(geometry(a.position))) as the_route | |
| FROM (SELECT position, | |
| stop_sequence, trips.trip_id | |
| FROM stop_times | |
| join trips on trips.trip_id = stop_times.trip_id | |
| join stops on stops.stop_id = stop_times.stop_id | |
| WHERE trips.trip_id = :tripID ORDER BY stop_sequence) as a group by a.trip_id"; | |
| debug($query, "database"); | |
| $query = $conn->prepare($query); | |
| $query->bindParam(":tripID", $tripID); | |
| $query->execute(); | |
| if (!$query) { | |
| databaseError($conn->errorInfo()); | |
| return Array(); | |
| } | |
| return $query->fetchColumn(0); | |
| } | } |
| function viaPoints($tripid, $stopid, $timingPointsOnly = false) | function getTripStopTimes($tripID) { |
| { | global $conn; |
| global $APIurl; | $query = "SELECT stop_times.trip_id,trip_headsign,arrival_time,stop_times.stop_id |
| $url = $APIurl . "/json/tripstoptimes?trip=" . $tripid; | ,stop_lat,stop_lon,stop_name,stop_desc,stop_code, |
| $json = json_decode(getPage($url)); | stop_sequence,service_id,trips.route_id,route_short_name,route_long_name |
| debug(print_r($json, true)); | FROM stop_times |
| $stops = $json[0]; | join trips on trips.trip_id = stop_times.trip_id |
| $times = $json[1]; | join routes on trips.route_id = routes.route_id |
| $foundStop = false; | join stops on stops.stop_id = stop_times.stop_id |
| $viaPoints = Array(); | WHERE trips.trip_id = :tripID $range ORDER BY stop_sequence"; |
| foreach ($stops as $key => $row) { | debug($query, "database"); |
| if ($foundStop) { | $query = $conn->prepare($query); |
| if (!$timingPointsOnly || !startsWith($row[5], "Wj")) { | $query->bindParam(":tripID", $tripID); |
| $viaPoints[] = Array( | $query->execute(); |
| "id" => $row[0], | if (!$query) { |
| "name" => $row[1], | databaseError($conn->errorInfo()); |
| "time" => $times[$key] | return Array(); |
| ); | } |
| } | $stopTimes = $query->fetchAll(); |
| } | return $stopTimes; |
| else { | |
| if ($row[0] == $stopid) $foundStop = true; | |
| } | |
| } | |
| return $viaPoints; | |
| } | } |
| function viaPointNames($tripid, $stopid) | |
| { | function getTripAtStop($tripID, $stop_sequence) { |
| $points = viaPoints($tripid, $stopid, true); | global $conn; |
| $pointNames = Array(); | foreach (getTripStopTimes($tripID) as $tripStop) { |
| foreach ($points as $point) { | if ($tripStop['stop_sequence'] == $stop_sequence) |
| $pointNames[] = $point['name']; | return $tripStop; |
| } | } |
| return implode(", ", $pointNames); | return Array(); |
| } | } |
| function getTripStartTime($tripID) { | |
| 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 $r['arrival_time']; | |
| } | |
| function getActiveTrips($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 $query->fetchAll(); | |
| } | |
| function viaPoints($tripID, $stop_sequence = "") { | |
| global $conn; | |
| $query = "SELECT stops.stop_id, stop_name, arrival_time | |
| FROM stop_times join stops on stops.stop_id = stop_times.stop_id | |
| WHERE stop_times.trip_id = :tripID | |
| " . ($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(); | |
| } | |
| ?> | ?> |