| <?php | <?php |
| function getTrip($tripID) | |
| { | /* |
| global $conn; | * Copyright 2010,2011 Alexander Sadleir |
| $query = "Select * from trips | |
| Licensed under the Apache License, Version 2.0 (the "License"); | |
| you may not use this file except in compliance with the License. | |
| You may obtain a copy of the License at | |
| http://www.apache.org/licenses/LICENSE-2.0 | |
| Unless required by applicable law or agreed to in writing, software | |
| distributed under the License is distributed on an "AS IS" BASIS, | |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| See the License for the specific language governing permissions and | |
| limitations under the License. | |
| */ | |
| function getTrip($tripID) { | |
| global $conn; | |
| $query = "Select * from trips | |
| join routes on trips.route_id = routes.route_id | join routes on trips.route_id = routes.route_id |
| where trip_id = :tripID | where trip_id = :tripID |
| LIMIT 1"; | LIMIT 1"; |
| debug($query, "database"); | debug($query, "database"); |
| $query = $conn->prepare($query); | $query = $conn->prepare($query); |
| $query->bindParam(":tripID", $tripID); | $query->bindParam(":tripID", $tripID); |
| $query->execute(); | $query->execute(); |
| if (!$query) { | if (!$query) { |
| databaseError($conn->errorInfo()); | databaseError($conn->errorInfo()); |
| return Array(); | |
| } | return Array(); |
| return $query->fetch(PDO::FETCH_ASSOC); | } |
| return $query->fetch(PDO :: FETCH_ASSOC); | |
| } | } |
| function getTripShape($tripID) | function getTripStops($tripID) { |
| { | global $conn; |
| global $conn; | $query = "SELECT stop_id, stop_name, ST_AsKML(position) as positionkml, |
| $query = "SELECT ST_AsKML(ST_MakeLine(geometry(a.position))) as the_route | |
| FROM (SELECT position, | |
| stop_sequence, trips.trip_id | stop_sequence, trips.trip_id |
| FROM stop_times | FROM stop_times |
| join trips on trips.trip_id = stop_times.trip_id | join trips on trips.trip_id = stop_times.trip_id |
| join stops on stops.stop_id = stop_times.stop_id | join stops on stops.stop_id = stop_times.stop_id |
| WHERE trips.trip_id = :tripID ORDER BY stop_sequence) as a group by a.trip_id"; | WHERE trips.trip_id = :tripID ORDER BY stop_sequence"; |
| debug($query, "database"); | debug($query, "database"); |
| $query = $conn->prepare($query); | $query = $conn->prepare($query); |
| $query->bindParam(":tripID", $tripID); | $query->bindParam(":tripID", $tripID); |
| $query->execute(); | $query->execute(); |
| if (!$query) { | if (!$query) { |
| databaseError($conn->errorInfo()); | databaseError($conn->errorInfo()); |
| return Array(); | return Array(); |
| } | } |
| return $query->fetchColumn(0); | return $query->fetchColumn(0); |
| } | } |
| function getTimeInterpolatedTrip($tripID, $range = "") | function getTripShape($tripID) { |
| { | // todo, use shapes table if shape_id specified |
| global $conn; | global $conn; |
| $query = "SELECT stop_times.trip_id,arrival_time,stop_times.stop_id,stop_lat,stop_lon,stop_name,stop_code, | $query = "SELECT ST_AsKML(ST_MakeLine(geometry(a.shape_pt))) as the_route |
| FROM (SELECT shapes.shape_id,shape_pt from shapes | |
| inner join trips on shapes.shape_id = trips.shape_id | |
| WHERE trips.trip_id = :tripID ORDER BY shape_pt_sequence) as a group by a.shape_id"; | |
| debug($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 | stop_sequence,service_id,trips.route_id,route_short_name,route_long_name |
| FROM stop_times | FROM stop_times |
| join trips on trips.trip_id = stop_times.trip_id | join trips on trips.trip_id = stop_times.trip_id |
| join routes on trips.route_id = routes.route_id | join routes on trips.route_id = routes.route_id |
| join stops on stops.stop_id = stop_times.stop_id | join stops on stops.stop_id = stop_times.stop_id |
| WHERE trips.trip_id = :tripID $range ORDER BY stop_sequence"; | WHERE trips.trip_id = :tripID $range ORDER BY stop_sequence"; |
| debug($query, "database"); | debug($query, "database"); |
| $query = $conn->prepare($query); | $query = $conn->prepare($query); |
| $query->bindParam(":tripID", $tripID); | $query->bindParam(":tripID", $tripID); |
| $query->execute(); | $query->execute(); |
| if (!$query) { | if (!$query) { |
| databaseError($conn->errorInfo()); | databaseError($conn->errorInfo()); |
| return Array(); | return Array(); |
| } | } |
| $stopTimes = $query->fetchAll(); | $stopTimes = $query->fetchAll(); |
| $cur_timepoint = Array(); | return $stopTimes; |
| $next_timepoint = Array(); | |
| $distance_between_timepoints = 0.0; | |
| $distance_traveled_between_timepoints = 0.0; | |
| $rv = Array(); | |
| foreach ($stopTimes as $i => $stopTime) { | |
| if ($stopTime['arrival_time'] != "") { | |
| // is timepoint | |
| $cur_timepoint = $stopTime; | |
| $distance_between_timepoints = 0.0; | |
| $distance_traveled_between_timepoints = 0.0; | |
| if ($i + 1 < sizeof($stopTimes)) { | |
| $k = $i + 1; | |
| $distance_between_timepoints+= distance($stopTimes[$k - 1]["stop_lat"], $stopTimes[$k - 1]["stop_lon"], $stopTimes[$k]["stop_lat"], $stopTimes[$k]["stop_lon"]); | |
| while ($stopTimes[$k]["arrival_time"] == "" && $k + 1 < sizeof($stopTimes)) { | |
| $k+= 1; | |
| //echo "k".$k; | |
| $distance_between_timepoints+= distance($stopTimes[$k - 1]["stop_lat"], $stopTimes[$k - 1]["stop_lon"], $stopTimes[$k]["stop_lat"], $stopTimes[$k]["stop_lon"]); | |
| } | |
| $next_timepoint = $stopTimes[$k]; | |
| } | |
| $rv[] = $stopTime; | |
| } | |
| else { | |
| // is untimed point | |
| //echo "i".$i; | |
| $distance_traveled_between_timepoints+= distance($stopTimes[$i - 1]["stop_lat"], $stopTimes[$i - 1]["stop_lon"], $stopTimes[$i]["stop_lat"], $stopTimes[$i]["stop_lon"]); | |
| //echo "$distance_traveled_between_timepoints / $distance_between_timepoints<br>"; | |
| $distance_percent = $distance_traveled_between_timepoints / $distance_between_timepoints; | |
| if ($next_timepoint["arrival_time"] != "") { | |
| $total_time = strtotime($next_timepoint["arrival_time"]) - strtotime($cur_timepoint["arrival_time"]); | |
| //echo strtotime($next_timepoint["arrival_time"])." - ".strtotime($cur_timepoint["arrival_time"])."<br>"; | |
| $time_estimate = ($distance_percent * $total_time) + strtotime($cur_timepoint["arrival_time"]); | |
| $stopTime["arrival_time"] = date("H:i:s", $time_estimate); | |
| } | |
| else { | |
| $stopTime["arrival_time"] = $cur_timepoint["arrival_time"]; | |
| } | |
| $rv[] = $stopTime; | |
| } | |
| } | |
| //var_dump($rv); | |
| return $rv; | |
| } | } |
| function getTripPreviousTimePoint($tripID, $stop_sequence) | |
| { | function getTripAtStop($tripID, $stop_sequence) { |
| global $conn; | global $conn; |
| $query = " SELECT trip_id,stop_id, | foreach (getTripStopTimes($tripID) as $tripStop) { |
| stop_sequence | if ($tripStop['stop_sequence'] == $stop_sequence) |
| FROM stop_times | return $tripStop; |
| WHERE trip_id = :tripID and stop_sequence < :stop_sequence | } |
| and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence DESC LIMIT 1"; | return Array(); |
| debug($query, "database"); | |
| $query = $conn->prepare($query); | |
| $query->bindParam(":tripID", $tripID); | |
| $query->bindParam(":stop_sequence", $stop_sequence); | |
| $query->execute(); | |
| if (!$query) { | |
| databaseError($conn->errorInfo()); | |
| return Array(); | |
| } | |
| return $query->fetch(PDO::FETCH_ASSOC); | |
| } | } |
| function getTripNextTimePoint($tripID, $stop_sequence) | |
| { | function getTripStartTime($tripID) { |
| global $conn; | global $conn; |
| $query = " SELECT trip_id,stop_id, | $query = "Select * from stop_times |
| stop_sequence | |
| FROM stop_times | |
| WHERE trip_id = :tripID and stop_sequence > :stop_sequence | |
| and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence LIMIT 1"; | |
| debug($query, "database"); | |
| $query = $conn->prepare($query); | |
| $query->bindParam(":tripID", $tripID); | |
| $query->bindParam(":stop_sequence", $stop_sequence); | |
| $query->execute(); | |
| if (!$query) { | |
| databaseError($conn->errorInfo()); | |
| return Array(); | |
| } | |
| return $query->fetch(PDO::FETCH_ASSOC); | |
| } | |
| function getTimeInterpolatedTripAtStop($tripID, $stop_sequence) | |
| { | |
| global $conn; | |
| // limit interpolation to between nearest actual points. | |
| $prevTimePoint = getTripPreviousTimePoint($tripID, $stop_sequence); | |
| $nextTimePoint = getTripNextTimePoint($tripID, $stop_sequence); | |
| //echo " prev {$lowestDelta['stop_sequence']} next {$nextTimePoint['stop_sequence']} "; | |
| $range = ""; | |
| if ($prevTimePoint != "") $range .= " AND stop_sequence >= '{$prevTimePoint['stop_sequence']}'"; | |
| if ($nextTimePoint != "") $range .= " AND stop_sequence <= '{$nextTimePoint['stop_sequence']}'"; | |
| foreach (getTimeInterpolatedTrip($tripID, $range) as $tripStop) { | |
| if ($tripStop['stop_sequence'] == $stop_sequence) return $tripStop; | |
| } | |
| return Array(); | |
| } | |
| function getTripStartTime($tripID) | |
| { | |
| global $conn; | |
| $query = "Select * from stop_times | |
| where trip_id = :tripID | where trip_id = :tripID |
| AND arrival_time IS NOT NULL | AND arrival_time IS NOT NULL |
| AND stop_sequence = '1'"; | AND stop_sequence = '1'"; |
| debug($query, "database"); | debug($query, "database"); |
| $query = $conn->prepare($query); | $query = $conn->prepare($query); |
| $query->bindParam(":tripID", $tripID); | $query->bindParam(":tripID", $tripID); |
| $query->execute(); | $query->execute(); |
| if (!$query) { | if (!$query) { |
| databaseError($conn->errorInfo()); | databaseError($conn->errorInfo()); |
| return Array(); | return Array(); |
| } | } |
| $r = $query->fetch(PDO::FETCH_ASSOC); | $r = $query->fetch(PDO :: FETCH_ASSOC); |
| return $r['arrival_time']; | return $r['arrival_time']; |
| } | } |
| function getTripEndTime($tripID) | |
| { | function getTripEndTime($tripID) { |
| global $conn; | global $conn; |
| $query = "SELECT trip_id,max(arrival_time) as arrival_time from stop_times | $query = "SELECT trip_id,max(arrival_time) as arrival_time from stop_times |
| WHERE stop_times.arrival_time IS NOT NULL and trip_id = :tripID group by trip_id"; | WHERE stop_times.arrival_time IS NOT NULL and trip_id = :tripID group by trip_id"; |
| debug($query, "database"); | debug($query, "database"); |
| $query = $conn->prepare($query); | $query = $conn->prepare($query); |
| $query->bindParam(":tripID", $tripID); | $query->bindParam(":tripID", $tripID); |
| $query->execute(); | $query->execute(); |
| if (!$query) { | if (!$query) { |
| databaseError($conn->errorInfo()); | databaseError($conn->errorInfo()); |
| return Array(); | return Array(); |
| } | } |
| $r = $query->fetch(PDO::FETCH_ASSOC); | $r = $query->fetch(PDO :: FETCH_ASSOC); |
| return $r['arrival_time']; | return $r['arrival_time']; |
| } | } |
| function getActiveTrips($time) | |
| { | function getTripDestination($tripID) { |
| global $conn; | global $conn; |
| if ($time == "") $time = current_time(); | $query = "SELECT stops.stop_id, stops.stop_name, stops.stop_desc |
| $query = "Select distinct stop_times.trip_id, start_times.arrival_time as start_time, end_times.arrival_time as end_time from stop_times, (SELECT trip_id,arrival_time from stop_times WHERE stop_times.arrival_time IS NOT NULL | from stop_times inner join stops on stop_times.stop_id = stops.stop_id |
| WHERE trip_id = :tripID order by stop_sequence desc limit 1"; | |
| debug($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(); | |
| $query = "Select distinct stop_times.trip_id, start_times.arrival_time as start_time, end_times.arrival_time as end_time from stop_times, (SELECT trip_id,arrival_time from stop_times WHERE stop_times.arrival_time IS NOT NULL | |
| AND stop_sequence = '1') as start_times, (SELECT trip_id,max(arrival_time) as arrival_time from stop_times WHERE stop_times.arrival_time IS NOT NULL group by trip_id) as end_times | AND stop_sequence = '1') as start_times, (SELECT trip_id,max(arrival_time) as arrival_time from stop_times WHERE stop_times.arrival_time IS NOT NULL group by trip_id) as end_times |
| WHERE start_times.trip_id = end_times.trip_id AND stop_times.trip_id = end_times.trip_id AND :time > start_times.arrival_time AND :time < end_times.arrival_time"; | WHERE start_times.trip_id = end_times.trip_id AND stop_times.trip_id = end_times.trip_id AND :time > start_times.arrival_time AND :time < end_times.arrival_time"; |
| debug($query, "database"); | debug($query, "database"); |
| $query = $conn->prepare($query); | $query = $conn->prepare($query); |
| $query->bindParam(":time", $time); | $query->bindParam(":time", $time); |
| $query->execute(); | $query->execute(); |
| if (!$query) { | if (!$query) { |
| databaseError($conn->errorInfo()); | databaseError($conn->errorInfo()); |
| return Array(); | return Array(); |
| } | } |
| return $query->fetchAll(); | return $query->fetchAll(); |
| } | } |
| function viaPoints($tripID, $stop_sequence = "") | |
| { | function viaPoints($tripID, $stop_sequence = "") { |
| global $conn; | global $conn; |
| $query = "SELECT stops.stop_id, stop_name, arrival_time | $query = "SELECT stops.stop_id, stop_name, arrival_time |
| FROM stop_times join stops on stops.stop_id = stop_times.stop_id | FROM stop_times join stops on stops.stop_id = stop_times.stop_id |
| WHERE stop_times.trip_id = :tripID | WHERE stop_times.trip_id = :tripID |
| " . ($stop_sequence != "" ? " AND stop_sequence > :stop_sequence " : "") . "AND substr(stop_code,1,2) != 'Wj' ORDER BY stop_sequence"; | " . ($stop_sequence != "" ? " AND stop_sequence > :stop_sequence " : "") . " ORDER BY stop_sequence"; |
| debug($query, "database"); | debug($query, "database"); |
| $query = $conn->prepare($query); | $query = $conn->prepare($query); |
| if ($stop_sequence != "") $query->bindParam(":stop_sequence", $stop_sequence); | if ($stop_sequence != "") |
| $query->bindParam(":tripID", $tripID); | $query->bindParam(":stop_sequence", $stop_sequence); |
| $query->execute(); | $query->bindParam(":tripID", $tripID); |
| if (!$query) { | $query->execute(); |
| databaseError($conn->errorInfo()); | if (!$query) { |
| return Array(); | databaseError($conn->errorInfo()); |
| } | return Array(); |
| return $query->fetchAll(); | } |
| return $query->fetchAll(); | |
| } | } |
| function viaPointNames($tripid, $stop_sequence = "") | |
| { | |
| $viaPointNames = Array(); | |
| foreach (viaPoints($tripid, $stop_sequence) as $point) { | |
| $viaPointNames[] = $point['stop_name']; | |
| } | |
| if (sizeof($viaPointNames) > 0) { | |
| return r_implode(", ", $viaPointNames); | |
| } | |
| else { | |
| return ""; | |
| } | |
| } | |
| ?> | ?> |