--- a/include/db/trip-dao.inc.php
+++ b/include/db/trip-dao.inc.php
@@ -1,115 +1,224 @@
prepare($query);
+ $query->bindParam(":tripID", $tripID);
+ $query->execute();
+ if (!$query) {
+ databaseError($conn->errorInfo());
+ return Array();
+ }
+ return $query->fetch(PDO::FETCH_ASSOC);
+}
+function getTripShape($tripID)
+{
+ 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 $query->fetchColumn(0);
+}
+function getTimeInterpolatedTrip($tripID, $range = "")
+{
+ global $conn;
+ $query = "SELECT stop_times.trip_id,arrival_time,stop_times.stop_id,stop_lat,stop_lon,stop_name,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 $range ORDER BY stop_sequence";
+ debug($query, "database");
+ $query = $conn->prepare($query);
+ $query->bindParam(":tripID", $tripID);
+ $query->execute();
+ if (!$query) {
+ databaseError($conn->errorInfo());
+ return Array();
+ }
+ $stopTimes = $query->fetchAll();
+ $cur_timepoint = Array();
+ $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
";
+ $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"])."
";
+ $time_estimate = ($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)
+{
+ global $conn;
+ $query = " SELECT trip_id,stop_id,
+ stop_sequence
+FROM stop_times
+WHERE trip_id = :tripID and stop_sequence < :stop_sequence
+and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence DESC LIMIT 1";
+ debug($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 $query->fetch(PDO::FETCH_ASSOC);
+}
+function getTripNextTimePoint($tripID, $stop_sequence)
+{
+ global $conn;
+ $query = " SELECT trip_id,stop_id,
+ stop_sequence
+FROM stop_times
+WHERE trip_id = :tripID and stop_sequence > :stop_sequence
+and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence LIMIT 1";
+ debug($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;
+ $query = "Select * from stop_times
+ where trip_id = :tripID
+ AND arrival_time IS NOT NULL
+ AND stop_sequence = '1'";
+ debug($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 $r['arrival_time'];
+}
+function getActiveTrips($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'
-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 " : "") . "AND substr(stop_code,1,2) != 'Wj' 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 $query->fetchAll();
+}
+function viaPointNames($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 "";
+ }
}
?>