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