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Refactor stop time interpolation
[busui.git] / include / db / stop-dao.inc.php
blob:a/include/db/stop-dao.inc.php -> blob:b/include/db/stop-dao.inc.php 
--- a/include/db/stop-dao.inc.php
+++ b/include/db/stop-dao.inc.php
@@ -1,143 +1,214 @@
 <?php
 function getStop($stopID)
-{
-	global $conn;
-	$query = "Select * from stops where stop_id = '$stopID' 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 getStops($timingPointsOnly = false, $firstLetter = "")
-{
-	global $conn;
-	$conditions = Array();
-	if ($timingPointsOnly) $conditions[] = "substr(stop_code,1,2) != 'Wj'";
-	if ($firstLetter != "") $conditions[] = "substr(stop_name,1,1) = '$firstLetter'";
-	$query = "Select * from stops";
-	if (sizeof($conditions) > 0) {
-		if (sizeof($conditions) > 1) {
-			$query.= " Where " . implode(" AND ", $conditions) . " ";
-		}
-		else {
-			$query.= " Where " . $conditions[0] . " ";
-		}
-	}
-	$query.= " order by stop_name;";
-	debug($query, "database");
-	$result = pg_query($conn, $query);
-	if (!$result) {
-		databaseError(pg_result_error($result));
-		return Array();
-	}
-	return pg_fetch_all($result);
-}
+
+{
+     global $conn;
+     $query = "Select * from stops where stop_id = :stopID LIMIT 1";
+     debug($query, "database");
+     $query = $conn -> prepare($query);
+     $query -> bindParam(":stopID", $stopID);
+     $query -> execute();
+     if (!$query) {
+        databaseError($conn -> errorInfo());
+         return Array();
+         } 
+    return $query -> fetch(PDO :: FETCH_ASSOC);
+    } 
+function getStops($timingPointsOnly = false, $firstLetter = "", $startsWith = "")
+
+{
+     global $conn;
+     $conditions = Array();
+     if ($timingPointsOnly) $conditions[] = "substr(stop_code,1,2) != 'Wj'";
+     if ($firstLetter != "") $conditions[] = "substr(stop_name,1,1) = :firstLetter";
+     if ($startsWith != "") $conditions[] = "stop_name like :startsWith";
+     $query = "Select * from stops";
+     if (sizeof($conditions) > 0) {
+        if (sizeof($conditions) > 1) {
+            $query .= " Where " . implode(" AND ", $conditions) . " ";
+             } 
+        else {
+            $query .= " Where " . $conditions[0] . " ";
+             } 
+        } 
+    $query .= " order by stop_name;";
+     $query = $conn -> prepare($query);
+     if ($firstLetter != "") $query -> bindParam(":firstLetter", $firstLetter);
+    
+     if ($startsWith != "") {
+        $startsWith = $startsWith . "%";
+         $query -> bindParam(":startsWith", $startsWith);
+         } 
+    $query -> execute();
+     if (!$query) {
+        databaseError($conn -> errorInfo());
+         return Array();
+         } 
+    return $query -> fetchAll();
+    } 
 function getNearbyStops($lat, $lng, $limit = "", $distance = 1000)
-{
-	if ($lat == null || $lng == null) return Array();
-	if ($limit != "") $limit = " LIMIT $limit ";
-	global $conn;
-	$query = "Select *, ST_Distance(position, ST_GeographyFromText('SRID=4326;POINT($lng $lat)'), FALSE) as distance
-        from stops WHERE ST_DWithin(position, ST_GeographyFromText('SRID=4326;POINT($lng $lat)'), $distance, FALSE)
-        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);
-}
+
+{
+     if ($lat == null || $lng == null) return Array();
+     if ($limit != "") $limitSQL = " LIMIT :limit ";
+     global $conn;
+     $query = "Select *, ST_Distance(position, ST_GeographyFromText('SRID=4326;POINT($lng $lat)'), FALSE) as distance
+        from stops WHERE ST_DWithin(position, ST_GeographyFromText('SRID=4326;POINT($lng $lat)'), :distance, FALSE)
+        order by distance $limitSQL;";
+     debug($query, "database");
+     $query = $conn -> prepare($query);
+     $query -> bindParam(":distance", $distance);
+     $query -> bindParam(":limit", $limit);
+     $query -> execute();
+     if (!$query) {
+        databaseError($conn -> errorInfo());
+         return Array();
+         } 
+    return $query -> fetchAll();
+    } 
+function getStopsByName($name)
+
+{
+     global $conn;
+     $query = "Select * from stops where stop_name LIKE :name;";
+     debug($query, "database");
+     $query = $conn -> prepare($query);
+     $name = "%" . $name . ";%";
+     $query -> bindParam(":name", $name);
+     $query -> execute();
+     if (!$query) {
+        databaseError($conn -> errorInfo());
+         return Array();
+         } 
+    return $query -> fetchAll();
+    } 
 function getStopsBySuburb($suburb)
-{
-	global $conn;
-	$query = "Select * from stops where zone_id LIKE '%$suburb;%' order by stop_name;";
-	debug($query, "database");
-	$result = pg_query($conn, $query);
-	if (!$result) {
-		databaseError(pg_result_error($result));
-		return Array();
-	}
-	return pg_fetch_all($result);
-}
+
+{
+     global $conn;
+     $query = "Select * from stops where zone_id LIKE :suburb order by stop_name;";
+     debug($query, "database");
+     $query = $conn -> prepare($query);
+     $suburb = "%" . $suburb . ";%";
+     $query -> bindParam(":suburb", $suburb);
+     $query -> execute();
+     if (!$query) {
+        databaseError($conn -> errorInfo());
+         return Array();
+         } 
+    return $query -> fetchAll();
+    } 
+function getStopsByStopCode($stop_code, $startsWith = "")
+
+{
+     global $conn;
+     $query = "Select * from stops where (stop_code = :stop_code OR stop_code LIKE :stop_code2)";
+     if ($startsWith != "") $query .= " AND stop_name like :startsWith";
+    
+     debug($query, "database");
+     $query = $conn -> prepare($query);
+    
+     $query -> bindParam(":stop_code", $stop_code);
+     $stop_code2 = $stop_code . "%";
+     $query -> bindParam(":stop_code2", $stop_code2);
+     if ($startsWith != "") {
+        $startsWith = $startsWith . "%";
+         $query -> bindParam(":startsWith", $startsWith);
+         } 
+    $query -> execute();
+     if (!$query) {
+        databaseError($conn -> errorInfo());
+         return Array();
+         } 
+    return $query -> fetchAll();
+    } 
 function getStopRoutes($stopID, $service_period)
-{
-	if ($service_period == "") $service_period = service_period();
-	global $conn;
-	$query = "SELECT service_id,trips.route_id,route_short_name,route_long_name
+
+{
+     if ($service_period == "") $service_period = service_period();
+     global $conn;
+     $query = "SELECT distinct service_id,trips.route_id,route_short_name,route_long_name
 FROM stop_times join trips on trips.trip_id =
-stop_times.trip_id join routes on trips.route_id = routes.route_id WHERE stop_id = '$stopID' AND service_id='$service_period'";
-	debug($query, "database");
-	$result = pg_query($conn, $query);
-	if (!$result) {
-		databaseError(pg_result_error($result));
-		return Array();
-	}
-	return pg_fetch_all($result);
-}
-function getStopTrips($stopID, $service_period = "", $afterTime = "")
-{
-	if ($service_period == "") $service_period = service_period();
-	$afterCondition = "AND arrival_time > '$afterTime'";
-	global $conn;
-	if ($afterTime != "") {
-		$query = " SELECT stop_times.trip_id,stop_times.arrival_time,stop_times.stop_id,stop_sequence,service_id,trips.route_id,route_short_name,route_long_name, start_times.arrival_time as start_time
+stop_times.trip_id join routes on trips.route_id = routes.route_id WHERE stop_id = :stopID AND service_id=:service_period";
+     debug($query, "database");
+     $query = $conn -> prepare($query);
+     $query -> bindParam(":service_period", $service_period);
+     $query -> bindParam(":stopID", $stopID);
+     $query -> execute();
+     if (!$query) {
+        databaseError($conn -> errorInfo());
+         return Array();
+         } 
+    return $query -> fetchAll();
+    } 
+function getStopTrips($stopID, $service_period = "", $afterTime = "", $limit = "")
+
+{
+     if ($service_period == "") $service_period = service_period();
+     if ($limit != "") $limitSQL = " LIMIT :limit ";
+     global $conn;
+     if ($afterTime != "") {
+        $query = " SELECT stop_times.trip_id,stop_times.arrival_time,stop_times.stop_id,stop_sequence,service_id,trips.route_id,route_short_name,route_long_name, end_times.arrival_time as end_time
 FROM stop_times
 join trips on trips.trip_id =
 stop_times.trip_id
-join routes on trips.route_id = routes.route_id , (SELECT trip_id,arrival_time from stop_times
-	WHERE stop_times.arrival_time IS NOT NULL
-	AND stop_sequence = '1') as start_times 
-WHERE stop_times.stop_id = '$stopID'
-AND stop_times.trip_id = start_times.trip_id
-AND service_id='$service_period'
-AND start_times.arrival_time > '$afterTime'
-ORDER BY start_time";
-	}
-	else {
-		$query = "SELECT stop_times.trip_id,arrival_time,stop_times.stop_id,stop_sequence,service_id,trips.route_id,route_short_name,route_long_name
+join routes on trips.route_id = routes.route_id , (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 stop_times.stop_id = :stopID
+AND stop_times.trip_id = end_times.trip_id
+AND service_id=:service_period
+AND end_times.arrival_time > :afterTime
+ORDER BY end_time $limitSQL";
+         } 
+    else {
+        $query = "SELECT stop_times.trip_id,arrival_time,stop_times.stop_id,stop_sequence,service_id,trips.route_id,route_short_name,route_long_name
 FROM stop_times
 join trips on trips.trip_id =
 stop_times.trip_id
 join routes on trips.route_id = routes.route_id
-WHERE stop_times.stop_id = '$stopID'
-AND service_id='$service_period'
-ORDER BY arrival_time";
-	}
-	debug($query, "database");
-	$result = pg_query($conn, $query);
-	if (!$result) {
-		databaseError(pg_result_error($result));
-		return Array();
-	}
-	return pg_fetch_all($result);
-}
-function getStopTripsWithTimes($stopID, $time = "", $service_period = "", $time_range = "")
-{
-	if ($service_period == "") $service_period = service_period();
-	if ($time_range == "") $time_range = (24 * 60 * 60);
-	if ($time == "") $time = ($_SESSION['time'] ? $_SESSION['time'] : date("H:i:s"));
-	if ($limit == "") $limit = 10;
-	$trips = getStopTrips($stopID, $service_period, $time);
-	$timedTrips = Array();
-	foreach ($trips as $trip) {
-		if ($trip['arrival_time'] != "") {
-			if (strtotime($trip['arrival_time']) > strtotime($time) and strtotime($trip['arrival_time']) < (strtotime($time) + $time_range)) {
-				$timedTrips[] = $trip;
-			}
-		}
-		else {
-			$timedTrip = getTimeInterpolatedTripAtStop($trip['trip_id'], $trip['stop_sequence']);
-			if ($timedTrip['arrival_time'] > $time and strtotime($timedTrip['arrival_time']) < (strtotime($time) + $time_range)) {
-				$timedTrips[] = $timedTrip;
-			}
-		}
-		if (sizeof($timedTrips) > $limit) break;
-	}
-	sktimesort($timedTrips, "arrival_time", true);
-	return $timedTrips;
-}
+WHERE stop_times.stop_id = :stopID
+AND service_id=:service_period
+ORDER BY arrival_time $limitSQL";
+         } 
+    debug($query, "database");
+     $query = $conn -> prepare($query);
+     $query -> bindParam(":service_period", $service_period);
+     $query -> bindParam(":stopID", $stopID);
+     if ($limit != "") $query -> bindParam(":limit", $limit);
+     if ($afterTime != "") $query -> bindParam(":afterTime", $afterTime);
+     $query -> execute();
+     if (!$query) {
+        databaseError($conn -> errorInfo());
+         return Array();
+         } 
+    return $query -> fetchAll();
+    } 
+function getStopTripsWithTimes($stopID, $time = "", $service_period = "", $time_range = "", $limit = "")
+
+{
+     if ($service_period == "") $service_period = service_period();
+     if ($time_range == "") $time_range = (24 * 60 * 60);
+     if ($time == "") $time = current_time();
+     if ($limit == "") $limit = 10;
+     $trips = getStopTrips($stopID, $service_period, $time);
+     $timedTrips = Array();
+     if ($trips && sizeof($trips) > 0) {
+        foreach ($trips as $trip) {
+            if ($trip['arrival_time'] != "") {
+                if (strtotime($trip['arrival_time']) > strtotime($time) and strtotime($trip['arrival_time']) < (strtotime($time) + $time_range)) {
+                    $timedTrips[] = $trip;
+                     } 
+                } 
+            else {
+                $timedTrip = getTimeInterpolatedTripAtStop($trip['trip_id'], $trip['stop_sequence']);
+                 if ($timedTrip['arrival_time'] > $time and strtotime($timedTrip['arrival_time']) < (strtotime($time) + $time_range)) {
+                    $timedTrips[] = $timedTrip;
+                     } 
+                } 
+            if (sizeof($timedTrips) > $limit) break;
+             } 
+        sktimesort($timedTrips, "arrival_time", true);
+         } 
+    return $timedTrips;
+    } 
 ?>
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