--- a/include/db/trip-dao.inc.php +++ b/include/db/trip-dao.inc.php @@ -53,6 +53,7 @@ } return $query->fetchColumn(0); } + function getTripStopTimes($tripID) { global $conn; $query = "SELECT stop_times.trip_id,arrival_time,stop_times.stop_id,stop_lat,stop_lon,stop_name,stop_code, @@ -71,136 +72,137 @@ return Array(); } $stopTimes = $query->fetchAll(); - return $stopTimes; - -} + return $stopTimes; +} + function getTripAtStop($tripID, $stop_sequence) { global $conn; - foreach (getTripStopTimes($tripID) as $tripStop) { + foreach (getTripStopTimes($tripID) as $tripStop) { if ($tripStop['stop_sequence'] == $stop_sequence) return $tripStop; } return Array(); } + /* DEPRECIATED -function getTimeInterpolatedTrip($tripID, $range = "") { - global $conn; - $query = "SELECT stop_times.trip_id,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(); - $cur_timepoint = Array(); - $next_timepoint = Array(); - $distance_between_timepoints = 0.0; - $distance_traveled_between_timepoints = 0.0; - $rv = Array(); - foreach ($stopTimes as $i => $stopTime) { - if ($stopTime['arrival_time'] != "") { - // is timepoint - $cur_timepoint = $stopTime; - $distance_between_timepoints = 0.0; - $distance_traveled_between_timepoints = 0.0; - if ($i + 1 < sizeof($stopTimes)) { - $k = $i + 1; - $distance_between_timepoints += distance($stopTimes[$k - 1]["stop_lat"], $stopTimes[$k - 1]["stop_lon"], $stopTimes[$k]["stop_lat"], $stopTimes[$k]["stop_lon"]); - while ($stopTimes[$k]["arrival_time"] == "" && $k + 1 < sizeof($stopTimes)) { - $k += 1; - // echo "k".$k; - $distance_between_timepoints += distance($stopTimes[$k - 1]["stop_lat"], $stopTimes[$k - 1]["stop_lon"], $stopTimes[$k]["stop_lat"], $stopTimes[$k]["stop_lon"]); - } - $next_timepoint = $stopTimes[$k]; - } - $rv[] = $stopTime; - } else { - // is untimed point - // echo "i".$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 / $distance_between_timepoints; - if ($next_timepoint["arrival_time"] != "") { - $total_time = strtotime($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"]); - $stopTime["arrival_time"] = date("H:i:s", $time_estimate); - } else { - $stopTime["arrival_time"] = $cur_timepoint["arrival_time"]; - } - $rv[] = $stopTime; - } - } - // var_dump($rv); - return $rv; -} - -function getTripPreviousTimePoint($tripID, $stop_sequence) { - global $conn; - $query = " SELECT trip_id,stop_id, - stop_sequence -FROM stop_times -WHERE trip_id = :tripID and stop_sequence < :stop_sequence -and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence DESC LIMIT 1"; - debug($query, "database"); - $query = $conn->prepare($query); - $query->bindParam(":tripID", $tripID); - $query->bindParam(":stop_sequence", $stop_sequence); - $query->execute(); - if (!$query) { - databaseError($conn->errorInfo()); - return Array(); - } - return $query->fetch(PDO :: FETCH_ASSOC); -} - -function getTripNextTimePoint($tripID, $stop_sequence) { - global $conn; - $query = " SELECT trip_id,stop_id, - stop_sequence -FROM stop_times -WHERE trip_id = :tripID and stop_sequence > :stop_sequence -and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence LIMIT 1"; - debug($query, "database"); - $query = $conn->prepare($query); - $query->bindParam(":tripID", $tripID); - $query->bindParam(":stop_sequence", $stop_sequence); - $query->execute(); - if (!$query) { - databaseError($conn->errorInfo()); - return Array(); - } - return $query->fetch(PDO :: FETCH_ASSOC); -} - - - -function getTimeInterpolatedTripAtStop($tripID, $stop_sequence) { - global $conn; - // limit interpolation to between nearest actual points. - $prevTimePoint = getTripPreviousTimePoint($tripID, $stop_sequence); - $nextTimePoint = getTripNextTimePoint($tripID, $stop_sequence); - // echo " prev {$lowestDelta['stop_sequence']} next {$nextTimePoint['stop_sequence']} "; - $range = ""; - if ($prevTimePoint != "") - $range .= " AND stop_sequence >= '{$prevTimePoint['stop_sequence']}'"; - if ($nextTimePoint != "") - $range .= " AND stop_sequence <= '{$nextTimePoint['stop_sequence']}'"; - foreach (getTimeInterpolatedTrip($tripID, $range) as $tripStop) { - if ($tripStop['stop_sequence'] == $stop_sequence) - return $tripStop; - } - return Array(); -}*/ + function getTimeInterpolatedTrip($tripID, $range = "") { + global $conn; + $query = "SELECT stop_times.trip_id,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(); + $cur_timepoint = Array(); + $next_timepoint = Array(); + $distance_between_timepoints = 0.0; + $distance_traveled_between_timepoints = 0.0; + $rv = Array(); + foreach ($stopTimes as $i => $stopTime) { + if ($stopTime['arrival_time'] != "") { + // is timepoint + $cur_timepoint = $stopTime; + $distance_between_timepoints = 0.0; + $distance_traveled_between_timepoints = 0.0; + if ($i + 1 < sizeof($stopTimes)) { + $k = $i + 1; + $distance_between_timepoints += distance($stopTimes[$k - 1]["stop_lat"], $stopTimes[$k - 1]["stop_lon"], $stopTimes[$k]["stop_lat"], $stopTimes[$k]["stop_lon"]); + while ($stopTimes[$k]["arrival_time"] == "" && $k + 1 < sizeof($stopTimes)) { + $k += 1; + // echo "k".$k; + $distance_between_timepoints += distance($stopTimes[$k - 1]["stop_lat"], $stopTimes[$k - 1]["stop_lon"], $stopTimes[$k]["stop_lat"], $stopTimes[$k]["stop_lon"]); + } + $next_timepoint = $stopTimes[$k]; + } + $rv[] = $stopTime; + } else { + // is untimed point + // echo "i".$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 / $distance_between_timepoints; + if ($next_timepoint["arrival_time"] != "") { + $total_time = strtotime($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"]); + $stopTime["arrival_time"] = date("H:i:s", $time_estimate); + } else { + $stopTime["arrival_time"] = $cur_timepoint["arrival_time"]; + } + $rv[] = $stopTime; + } + } + // var_dump($rv); + return $rv; + } + + function getTripPreviousTimePoint($tripID, $stop_sequence) { + global $conn; + $query = " SELECT trip_id,stop_id, + stop_sequence + FROM stop_times + WHERE trip_id = :tripID and stop_sequence < :stop_sequence + and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence DESC LIMIT 1"; + debug($query, "database"); + $query = $conn->prepare($query); + $query->bindParam(":tripID", $tripID); + $query->bindParam(":stop_sequence", $stop_sequence); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + return $query->fetch(PDO :: FETCH_ASSOC); + } + + function getTripNextTimePoint($tripID, $stop_sequence) { + global $conn; + $query = " SELECT trip_id,stop_id, + stop_sequence + FROM stop_times + WHERE trip_id = :tripID and stop_sequence > :stop_sequence + and stop_times.arrival_time IS NOT NULL ORDER BY stop_sequence LIMIT 1"; + debug($query, "database"); + $query = $conn->prepare($query); + $query->bindParam(":tripID", $tripID); + $query->bindParam(":stop_sequence", $stop_sequence); + $query->execute(); + if (!$query) { + databaseError($conn->errorInfo()); + return Array(); + } + return $query->fetch(PDO :: FETCH_ASSOC); + } + + + + function getTimeInterpolatedTripAtStop($tripID, $stop_sequence) { + global $conn; + // limit interpolation to between nearest actual points. + $prevTimePoint = getTripPreviousTimePoint($tripID, $stop_sequence); + $nextTimePoint = getTripNextTimePoint($tripID, $stop_sequence); + // echo " prev {$lowestDelta['stop_sequence']} next {$nextTimePoint['stop_sequence']} "; + $range = ""; + if ($prevTimePoint != "") + $range .= " AND stop_sequence >= '{$prevTimePoint['stop_sequence']}'"; + if ($nextTimePoint != "") + $range .= " AND stop_sequence <= '{$nextTimePoint['stop_sequence']}'"; + foreach (getTimeInterpolatedTrip($tripID, $range) as $tripStop) { + if ($tripStop['stop_sequence'] == $stop_sequence) + return $tripStop; + } + return Array(); + } */ function getTripStartTime($tripID) { global $conn; @@ -259,7 +261,7 @@ $query = "SELECT stops.stop_id, stop_name, arrival_time FROM stop_times join stops on stops.stop_id = stop_times.stop_id WHERE stop_times.trip_id = :tripID -" . ($stop_sequence != "" ? " AND stop_sequence > :stop_sequence " : "") ." ORDER BY stop_sequence"; +" . ($stop_sequence != "" ? " AND stop_sequence > :stop_sequence " : "") . " ORDER BY stop_sequence"; debug($query, "database"); $query = $conn->prepare($query); if ($stop_sequence != "")