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<?php |
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/* |
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* Copyright 2010,2011 Alexander Sadleir |
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Licensed under the Apache License, Version 2.0 (the "License"); |
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you may not use this file except in compliance with the License. |
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You may obtain a copy of the License at |
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http://www.apache.org/licenses/LICENSE-2.0 |
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Unless required by applicable law or agreed to in writing, software |
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distributed under the License is distributed on an "AS IS" BASIS, |
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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See the License for the specific language governing permissions and |
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limitations under the License. |
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*/ |
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function getTrip($tripID) { |
function getTrip($tripID) { |
/* def handle_json_GET_triprows(self, params): |
global $conn; |
"""Return a list of rows from the feed file that are related to this |
$query = "Select * from trips |
trip.""" |
join routes on trips.route_id = routes.route_id |
schedule = self.server.schedule |
where trip_id = :tripID |
try: |
LIMIT 1"; |
trip = schedule.GetTrip(params.get('trip', None)) |
debug($query, "database"); |
except KeyError: |
$query = $conn->prepare($query); |
# if a non-existent trip is searched for, the return nothing |
$query->bindParam(":tripID", $tripID); |
return |
$query->execute(); |
route = schedule.GetRoute(trip.route_id) |
if (!$query) { |
trip_row = dict(trip.iteritems()) |
databaseError($conn->errorInfo()); |
route_row = dict(route.iteritems()) |
return Array(); |
return [['trips.txt', trip_row], ['routes.txt', route_row]] |
} |
*/ |
return $query->fetch(PDO :: FETCH_ASSOC); |
} |
} |
function getTripShape() { |
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/* def handle_json_GET_tripstoptimes(self, params): |
function getTripShape($tripID) { |
schedule = self.server.schedule |
// todo, use shapes table if shape_id specified |
try: |
global $conn; |
trip = schedule.GetTrip(params.get('trip')) |
$query = "SELECT ST_AsKML(ST_MakeLine(geometry(a.position))) as the_route |
except KeyError: |
FROM (SELECT position, |
# if a non-existent trip is searched for, the return nothing |
stop_sequence, trips.trip_id |
return |
FROM stop_times |
time_stops = trip.GetTimeInterpolatedStops() |
join trips on trips.trip_id = stop_times.trip_id |
stops = [] |
join stops on stops.stop_id = stop_times.stop_id |
times = [] |
WHERE trips.trip_id = :tripID ORDER BY stop_sequence) as a group by a.trip_id"; |
for arr,ts,is_timingpoint in time_stops: |
debug($query, "database"); |
stops.append(StopToTuple(ts.stop)) |
$query = $conn->prepare($query); |
times.append(arr) |
$query->bindParam(":tripID", $tripID); |
return [stops, times] |
$query->execute(); |
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if (!$query) { |
def handle_json_GET_tripshape(self, params): |
databaseError($conn->errorInfo()); |
schedule = self.server.schedule |
return Array(); |
try: |
} |
trip = schedule.GetTrip(params.get('trip')) |
return $query->fetchColumn(0); |
except KeyError: |
} |
# if a non-existent trip is searched for, the return nothing |
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return |
function getTripStopTimes($tripID) { |
points = [] |
global $conn; |
if trip.shape_id: |
$query = "SELECT stop_times.trip_id,arrival_time,stop_times.stop_id,stop_lat,stop_lon,stop_name,stop_code, |
shape = schedule.GetShape(trip.shape_id) |
stop_sequence,service_id,trips.route_id,route_short_name,route_long_name |
for (lat, lon, dist) in shape.points: |
FROM stop_times |
points.append((lat, lon)) |
join trips on trips.trip_id = stop_times.trip_id |
else: |
join routes on trips.route_id = routes.route_id |
time_stops = trip.GetTimeStops() |
join stops on stops.stop_id = stop_times.stop_id |
for arr,dep,stop in time_stops: |
WHERE trips.trip_id = :tripID $range ORDER BY stop_sequence"; |
points.append((stop.stop_lat, stop.stop_lon)) |
debug($query, "database"); |
return points*/ |
$query = $conn->prepare($query); |
} |
$query->bindParam(":tripID", $tripID); |
function tripStopTimes($tripID, $after_time, $limit) { |
$query->execute(); |
/* rv = [] |
if (!$query) { |
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databaseError($conn->errorInfo()); |
stoptimes = self.GetStopTimes() |
return Array(); |
# 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. |
$stopTimes = $query->fetchAll(); |
if not stoptimes: |
return $stopTimes; |
return [] |
} |
if (stoptimes[0].GetTimeSecs() is None or |
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stoptimes[-1].GetTimeSecs() is None): |
function getTripAtStop($tripID, $stop_sequence) { |
raise ValueError("%s must have time at first and last stop" % (self)) |
global $conn; |
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foreach (getTripStopTimes($tripID) as $tripStop) { |
cur_timepoint = None |
if ($tripStop['stop_sequence'] == $stop_sequence) |
next_timepoint = None |
return $tripStop; |
distance_between_timepoints = 0 |
} |
distance_traveled_between_timepoints = 0 |
return Array(); |
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} |
for i, st in enumerate(stoptimes): |
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if st.GetTimeSecs() != None: |
/* DEPRECIATED |
cur_timepoint = st |
function getTimeInterpolatedTrip($tripID, $range = "") { |
distance_between_timepoints = 0 |
global $conn; |
distance_traveled_between_timepoints = 0 |
$query = "SELECT stop_times.trip_id,arrival_time,stop_times.stop_id,stop_lat,stop_lon,stop_name,stop_code, |
if i + 1 < len(stoptimes): |
stop_sequence,service_id,trips.route_id,route_short_name,route_long_name |
k = i + 1 |
FROM stop_times |
distance_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[k-1].stop, stoptimes[k].stop) |
join trips on trips.trip_id = stop_times.trip_id |
while stoptimes[k].GetTimeSecs() == None: |
join routes on trips.route_id = routes.route_id |
k += 1 |
join stops on stops.stop_id = stop_times.stop_id |
distance_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[k-1].stop, stoptimes[k].stop) |
WHERE trips.trip_id = :tripID $range ORDER BY stop_sequence"; |
next_timepoint = stoptimes[k] |
debug($query, "database"); |
rv.append( (st.GetTimeSecs(), st, True) ) |
$query = $conn->prepare($query); |
else: |
$query->bindParam(":tripID", $tripID); |
distance_traveled_between_timepoints += util.ApproximateDistanceBetweenStops(stoptimes[i-1].stop, st.stop) |
$query->execute(); |
distance_percent = distance_traveled_between_timepoints / distance_between_timepoints |
if (!$query) { |
total_time = next_timepoint.GetTimeSecs() - cur_timepoint.GetTimeSecs() |
databaseError($conn->errorInfo()); |
time_estimate = distance_percent * total_time + cur_timepoint.GetTimeSecs() |
return Array(); |
rv.append( (int(round(time_estimate)), st, False) ) |
} |
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$stopTimes = $query->fetchAll(); |
return rv*/ |
$cur_timepoint = Array(); |
} |
$next_timepoint = Array(); |
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$distance_between_timepoints = 0.0; |
function tripStartTime($tripID) { |
$distance_traveled_between_timepoints = 0.0; |
$query = 'SELECT arrival_secs,departure_secs FROM stop_times WHERE trip_id=? ORDER BY stop_sequence LIMIT 1'; |
$rv = Array(); |
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foreach ($stopTimes as $i => $stopTime) { |
} |
if ($stopTime['arrival_time'] != "") { |
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// is timepoint |
function viaPoints($tripid, $stopid, $timingPointsOnly = false) |
$cur_timepoint = $stopTime; |
{ |
$distance_between_timepoints = 0.0; |
global $APIurl; |
$distance_traveled_between_timepoints = 0.0; |
$url = $APIurl . "/json/tripstoptimes?trip=" . $tripid; |
if ($i + 1 < sizeof($stopTimes)) { |
$json = json_decode(getPage($url)); |
$k = $i + 1; |
debug(print_r($json, true)); |
$distance_between_timepoints += distance($stopTimes[$k - 1]["stop_lat"], $stopTimes[$k - 1]["stop_lon"], $stopTimes[$k]["stop_lat"], $stopTimes[$k]["stop_lon"]); |
$stops = $json[0]; |
while ($stopTimes[$k]["arrival_time"] == "" && $k + 1 < sizeof($stopTimes)) { |
$times = $json[1]; |
$k += 1; |
$foundStop = false; |
// echo "k".$k; |
$viaPoints = Array(); |
$distance_between_timepoints += distance($stopTimes[$k - 1]["stop_lat"], $stopTimes[$k - 1]["stop_lon"], $stopTimes[$k]["stop_lat"], $stopTimes[$k]["stop_lon"]); |
foreach ($stops as $key => $row) { |
} |
if ($foundStop) { |
$next_timepoint = $stopTimes[$k]; |
if (!$timingPointsOnly || !startsWith($row[5], "Wj")) { |
} |
$viaPoints[] = Array( |
$rv[] = $stopTime; |
"id" => $row[0], |
} else { |
"name" => $row[1], |
// is untimed point |
"time" => $times[$key] |
// 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<br>"; |
} |
$distance_percent = $distance_traveled_between_timepoints / $distance_between_timepoints; |
else { |
if ($next_timepoint["arrival_time"] != "") { |
if ($row[0] == $stopid) $foundStop = true; |
$total_time = strtotime($next_timepoint["arrival_time"]) - strtotime($cur_timepoint["arrival_time"]); |
} |
// echo strtotime($next_timepoint["arrival_time"])." - ".strtotime($cur_timepoint["arrival_time"])."<br>"; |
} |
$time_estimate = ($distance_percent * $total_time) + strtotime($cur_timepoint["arrival_time"]); |
return $viaPoints; |
$stopTime["arrival_time"] = date("H:i:s", $time_estimate); |
} |
} else { |
function viaPointNames($tripid, $stopid) |
$stopTime["arrival_time"] = $cur_timepoint["arrival_time"]; |
{ |
} |
$points = viaPoints($tripid, $stopid, true); |
$rv[] = $stopTime; |
$pointNames = Array(); |
} |
foreach ($points as $point) { |
} |
$pointNames[] = $point['name']; |
// var_dump($rv); |
} |
return $rv; |
return implode(", ", $pointNames); |
} |
} |
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function getTripPreviousTimePoint($tripID, $stop_sequence) { |
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global $conn; |
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$query = " SELECT trip_id,stop_id, |
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stop_sequence |
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FROM stop_times |
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WHERE trip_id = :tripID and stop_sequence < :stop_sequence |
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and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence DESC LIMIT 1"; |
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debug($query, "database"); |
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$query = $conn->prepare($query); |
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$query->bindParam(":tripID", $tripID); |
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$query->bindParam(":stop_sequence", $stop_sequence); |
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$query->execute(); |
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if (!$query) { |
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databaseError($conn->errorInfo()); |
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return Array(); |
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} |
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return $query->fetch(PDO :: FETCH_ASSOC); |
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} |
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function getTripNextTimePoint($tripID, $stop_sequence) { |
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global $conn; |
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$query = " SELECT trip_id,stop_id, |
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stop_sequence |
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FROM stop_times |
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WHERE trip_id = :tripID and stop_sequence > :stop_sequence |
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and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence LIMIT 1"; |
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debug($query, "database"); |
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$query = $conn->prepare($query); |
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$query->bindParam(":tripID", $tripID); |
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$query->bindParam(":stop_sequence", $stop_sequence); |
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$query->execute(); |
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if (!$query) { |
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databaseError($conn->errorInfo()); |
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return Array(); |
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} |
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return $query->fetch(PDO :: FETCH_ASSOC); |
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} |
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function getTimeInterpolatedTripAtStop($tripID, $stop_sequence) { |
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global $conn; |
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// limit interpolation to between nearest actual points. |
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$prevTimePoint = getTripPreviousTimePoint($tripID, $stop_sequence); |
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$nextTimePoint = getTripNextTimePoint($tripID, $stop_sequence); |
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// echo " prev {$lowestDelta['stop_sequence']} next {$nextTimePoint['stop_sequence']} "; |
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$range = ""; |
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if ($prevTimePoint != "") |
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$range .= " AND stop_sequence >= '{$prevTimePoint['stop_sequence']}'"; |
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if ($nextTimePoint != "") |
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$range .= " AND stop_sequence <= '{$nextTimePoint['stop_sequence']}'"; |
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foreach (getTimeInterpolatedTrip($tripID, $range) as $tripStop) { |
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if ($tripStop['stop_sequence'] == $stop_sequence) |
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return $tripStop; |
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} |
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return Array(); |
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} */ |
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function getTripStartTime($tripID) { |
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global $conn; |
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$query = "Select * from stop_times |
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where trip_id = :tripID |
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AND arrival_time IS NOT NULL |
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AND stop_sequence = '1'"; |
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debug($query, "database"); |
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$query = $conn->prepare($query); |
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$query->bindParam(":tripID", $tripID); |
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$query->execute(); |
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if (!$query) { |
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databaseError($conn->errorInfo()); |
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return Array(); |
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} |
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$r = $query->fetch(PDO :: FETCH_ASSOC); |
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return $r['arrival_time']; |
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} |
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function getTripEndTime($tripID) { |
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global $conn; |
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$query = "SELECT trip_id,max(arrival_time) as arrival_time from stop_times |
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WHERE stop_times.arrival_time IS NOT NULL and trip_id = :tripID group by trip_id"; |
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debug($query, "database"); |
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$query = $conn->prepare($query); |
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$query->bindParam(":tripID", $tripID); |
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$query->execute(); |
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if (!$query) { |
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databaseError($conn->errorInfo()); |
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return Array(); |
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} |
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$r = $query->fetch(PDO :: FETCH_ASSOC); |
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return $r['arrival_time']; |
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} |
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function getActiveTrips($time) { |
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global $conn; |
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if ($time == "") |
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$time = current_time(); |
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$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 |
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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 |
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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"; |
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debug($query, "database"); |
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$query = $conn->prepare($query); |
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$query->bindParam(":time", $time); |
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$query->execute(); |
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if (!$query) { |
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databaseError($conn->errorInfo()); |
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return Array(); |
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} |
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return $query->fetchAll(); |
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} |
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function viaPoints($tripID, $stop_sequence = "") { |
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global $conn; |
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$query = "SELECT stops.stop_id, stop_name, arrival_time |
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FROM stop_times join stops on stops.stop_id = stop_times.stop_id |
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WHERE stop_times.trip_id = :tripID |
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" . ($stop_sequence != "" ? " AND stop_sequence > :stop_sequence " : "") . " ORDER BY stop_sequence"; |
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debug($query, "database"); |
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$query = $conn->prepare($query); |
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if ($stop_sequence != "") |
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$query->bindParam(":stop_sequence", $stop_sequence); |
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$query->bindParam(":tripID", $tripID); |
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$query->execute(); |
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if (!$query) { |
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databaseError($conn->errorInfo()); |
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return Array(); |
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} |
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return $query->fetchAll(); |
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} |
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function viaPointNames($tripid, $stop_sequence = "") { |
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$viaPointNames = Array(); |
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foreach (viaPoints($tripid, $stop_sequence) as $point) { |
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$viaPointNames[] = $point['stop_name']; |
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} |
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if (sizeof($viaPointNames) > 0) { |
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return r_implode(", ", $viaPointNames); |
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} else { |
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return ""; |
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} |
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} |
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?> |
?> |