--- a/include/db/trip-dao.inc.php
+++ b/include/db/trip-dao.inc.php
@@ -1,115 +1,169 @@
 <?php
+
+/*
+ *    Copyright 2010,2011 Alexander Sadleir 
+
+  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;
-        $query = "Select * from trips where trip_id = '$tripID' join routes on trips.route_id = routes.route_id 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 getTripShape() {
-    /* def handle_json_GET_tripstoptimes(self, params):
-    schedule = self.server.schedule
-    try:
-      trip = schedule.GetTrip(params.get('trip'))
-    except KeyError:
-       # if a non-existent trip is searched for, the return nothing
-      return
-    time_stops = trip.GetTimeInterpolatedStops()
-    stops = []
-    times = []
-    for arr,ts,is_timingpoint in time_stops:
-      stops.append(StopToTuple(ts.stop))
-      times.append(arr)
-    return [stops, times]
-
-  def handle_json_GET_tripshape(self, params):
-    schedule = self.server.schedule
-    try:
-      trip = schedule.GetTrip(params.get('trip'))
-    except KeyError:
-       # if a non-existent trip is searched for, the return nothing
-      return
-    points = []
-    if trip.shape_id:
-      shape = schedule.GetShape(trip.shape_id)
-      for (lat, lon, dist) in shape.points:
-        points.append((lat, lon))
-    else:
-      time_stops = trip.GetTimeStops()
-      for arr,dep,stop in time_stops:
-        points.append((stop.stop_lat, stop.stop_lon))
-    return points*/
-}
-function getTimeInterpolatedTrip($tripID) {
-    /*     rv = []
-
-    stoptimes = self.GetStopTimes()
-    # If there are no stoptimes [] is the correct return value but if the start
-    # or end are missing times there is no correct return value.
-    if not stoptimes:
-      return []
-    if (stoptimes[0].GetTimeSecs() is None or
-        stoptimes[-1].GetTimeSecs() is None):
-      raise ValueError("%s must have time at first and last stop" % (self))
-
-    cur_timepoint = None
-    next_timepoint = None
-    distance_between_timepoints = 0
-    distance_traveled_between_timepoints = 0
-
-    for i, st in enumerate(stoptimes):
-      if st.GetTimeSecs() != None:
-        cur_timepoint = st
-        distance_between_timepoints = 0
-        distance_traveled_between_timepoints = 0
-        if i + 1 < len(stoptimes):
-          k = i + 1
-          distance_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[k-1].stop, stoptimes[k].stop)
-          while stoptimes[k].GetTimeSecs() == None:
-            k += 1
-            distance_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[k-1].stop, stoptimes[k].stop)
-          next_timepoint = stoptimes[k]
-        rv.append( (st.GetTimeSecs(), st, True) )
-      else:
-        distance_traveled_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[i-1].stop, st.stop)
-        distance_percent = distance_traveled_between_timepoints / distance_between_timepoints
-        total_time = next_timepoint.GetTimeSecs() - cur_timepoint.GetTimeSecs()
-        time_estimate = distance_percent * total_time + cur_timepoint.GetTimeSecs()
-        rv.append( (int(round(time_estimate)), st, False) )
-
-    return rv*/
-}
-function getTimeInterpolatedTripAtStop($trip_id, $stop_sequence) {
-   foreach(getTimeInterpolatedTrip($tripID) as $tripStop) {
-    if ($tripStop['stop_sequence'] == $stop_sequence) return $tripStop;
-   }
-   return Array();
+    $query = "Select * from trips
+	join routes on trips.route_id = routes.route_id
+	where trip_id =	:tripID
+	LIMIT 1";
+    debug($query, "database");
+    $query = $conn->prepare($query);
+    $query->bindParam(":tripID", $tripID);
+    $query->execute();
+    if (!$query) {
+        databaseError($conn->errorInfo());
+        return Array();
+    }
+    return $query->fetch(PDO :: FETCH_ASSOC);
 }
 
-function getTripStartTime($tripID) {
-    $query = 'SELECT arrival_secs,departure_secs FROM stop_times WHERE trip_id=? ORDER BY stop_sequence LIMIT 1';
-    
+function getTripShape($tripID) {
+    // todo, use shapes table if shape_id specified
+    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 viaPointNames($tripid, $stopid)
-{
+function getTripStopTimes($tripID) {
     global $conn;
-        $query = "SELECT stop_name
+    $query = "SELECT stop_times.trip_id,trip_headsign,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();
+    return $stopTimes;
+}
+
+function getTripAtStop($tripID, $stop_sequence) {
+    global $conn;
+    foreach (getTripStopTimes($tripID) 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 $r['arrival_time'];
+}
+
+function getTripEndTime($tripID) {
+    global $conn;
+    $query = "SELECT trip_id,max(arrival_time) as arrival_time from stop_times
+	WHERE stop_times.arrival_time IS NOT NULL and trip_id = :tripID group by trip_id";
+    debug($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 " : "") . " 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 "";
+    }
+}
+
 ?>