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Fix retrieving routes by number/number range
[busui.git] / include / db / route-dao.inc.php 
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<?php
function getRoute($routeID)
{
        global $conn;
        $query = "Select * from routes where route_id = '$routeID' 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 getRoutes()
{
        global $conn;
        $query = "Select * from routes order by route_short_name;";
        debug($query, "database");
        $result = pg_query($conn, $query);
        if (!$result) {
                databaseError(pg_result_error($result));
                return Array();
        }
        return pg_fetch_all($result);
}
function getRoutesByNumber($routeNumber = "")
{
        global $conn;
        if ($routeNumber != "") {
                $query = "Select distinct routes.route_id,routes.route_short_name,routes.route_long_name,service_id from routes  join trips on trips.route_id =
routes.route_id join stop_times on stop_times.trip_id = trips.trip_id where route_short_name = '$routeNumber' order by route_short_name;";
        }
        else {
                $query = "SELECT DISTINCT route_short_name from routes order by route_short_name";
        }
        debug($query, "database");
        $result = pg_query($conn, $query);
        if (!$result) {
                databaseError(pg_result_error($result));
                return Array();
        }
        return pg_fetch_all($result);
}
function getRoutesByNumberSeries($routeNumberSeries = "")
{
        global $conn;
                if (strlen($routeNumberSeries) == 1) {
                        return getRoutesByNumber($routeNumberSeries);
                }
                $seriesMin = substr($routeNumberSeries, 0, -1) . "0";
                $seriesMax = substr($routeNumberSeries, 0, -1) . "9";
                $query = "Select distinct routes.route_id,routes.route_short_name,routes.route_long_name,service_id from routes  join trips on trips.route_id =
routes.route_id join stop_times on stop_times.trip_id = trips.trip_id where to_number(route_short_name, 'FM999') between $seriesMin and $seriesMax order by route_short_name;";
                debug($query, "database");
        $result = pg_query($conn, $query);
        if (!$result) {
                databaseError(pg_result_error($result));
                return Array();
        }
        return pg_fetch_all($result);
}
function getRouteNextTrip($routeID)
{
        global $conn;
        $query = "select * from routes join trips on trips.route_id = routes.route_id
join stop_times on stop_times.trip_id = trips.trip_id where
arrival_time > '" . current_time() . "' and routes.route_id = '$routeID' order by
arrival_time limit 1";
        debug($query, "database");
        $result = pg_query($conn, $query);
        if (!$result) {
                databaseError(pg_result_error($result));
                return Array();
        }
        $r = pg_fetch_assoc($result);
        // past last trip of the day special case
        if (sizeof($r) == 0) {
                $query = "select * from routes join trips on trips.route_id = routes.route_id
join stop_times on stop_times.trip_id = trips.trip_id where routes.route_id = '$routeID' order by
arrival_time DESC limit 1";
                debug($query, "database");
                $result = pg_query($conn, $query);
                if (!$result) {
                        databaseError(pg_result_error($result));
                        return Array();
                }
                $r = pg_fetch_assoc($result);
        }
        return $r;
}
function getTimeInterpolatedRouteAtStop($routeID, $stop_id)
{
        $nextTrip = getRouteNextTrip($routeID);
        if ($nextTrip['trip_id']) {
                foreach (getTimeInterpolatedTrip($nextTrip['trip_id']) as $tripStop) {
                        if ($tripStop['stop_id'] == $stop_id) return $tripStop;
                }
        }
        return Array();
}
function getRouteTrips($routeID)
{
        global $conn;
        $query = "select routes.route_id,trips.trip_id,service_id,arrival_time, stop_id, stop_sequence from routes join trips on trips.route_id = routes.route_id
join stop_times on stop_times.trip_id = trips.trip_id where routes.route_id = '$routeID' and stop_sequence = '1' order by
arrival_time ";
        debug($query, "database");
        $result = pg_query($conn, $query);
        if (!$result) {
                databaseError(pg_result_error($result));
                return Array();
        }
        return pg_fetch_all($result);
}
function getRoutesByDestination($destination = "", $service_period = "")
{
        global $conn;
        if ($service_period == "") $service_period = service_period();
        if ($destination != "") {
                $query = "SELECT DISTINCT trips.route_id,route_short_name,route_long_name, service_id
FROM stop_times join trips on trips.trip_id =
stop_times.trip_id join routes on trips.route_id = routes.route_id
WHERE route_long_name = '$destination' AND  service_id='$service_period' order by route_short_name";
        }
        else {
                $query = "SELECT DISTINCT route_long_name
FROM stop_times join trips on trips.trip_id =
stop_times.trip_id join routes on trips.route_id = routes.route_id
WHERE service_id='$service_period' order by route_long_name";
        }
        debug($query, "database");
        $result = pg_query($conn, $query);
        if (!$result) {
                databaseError(pg_result_error($result));
                return Array();
        }
        return pg_fetch_all($result);
}
function getRoutesBySuburb($suburb, $service_period = "")
{
        if ($service_period == "") $service_period = service_period();
        global $conn;
        $query = "SELECT DISTINCT service_id,trips.route_id,route_short_name,route_long_name
FROM stop_times join trips on trips.trip_id = stop_times.trip_id
join routes on trips.route_id = routes.route_id
join stops on stops.stop_id = stop_times.stop_id
WHERE zone_id LIKE '%$suburb;%' AND service_id='$service_period' ORDER BY route_short_name";
        debug($query, "database");
        $result = pg_query($conn, $query);
        if (!$result) {
                databaseError(pg_result_error($result));
                return Array();
        }
        return pg_fetch_all($result);
}
function getRoutesNearby($lat, $lng, $limit = "", $distance = 500)
{
        if ($service_period == "") $service_period = service_period();
        if ($limit != "") $limit = " LIMIT $limit ";
        global $conn;
        $query = "SELECT service_id,trips.route_id,route_short_name,route_long_name,min(stops.stop_id) as stop_id,
        min(ST_Distance(position, ST_GeographyFromText('SRID=4326;POINT($lng $lat)'), FALSE)) as distance
FROM stop_times
join trips on trips.trip_id = stop_times.trip_id
join routes on trips.route_id = routes.route_id
join stops on stops.stop_id = stop_times.stop_id
WHERE service_id='$service_period'
AND ST_DWithin(position, ST_GeographyFromText('SRID=4326;POINT($lng $lat)'), $distance, FALSE)
        group by service_id,trips.route_id,route_short_name,route_long_name
        order by distance $limit";
        debug($query, "database");
        $result = pg_query($conn, $query);
        if (!$result) {
                databaseError(pg_result_error($result));
                return Array();
        }
        return pg_fetch_all($result);
}
?>
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GitPHP by Chris Han