274 lines
9.4 KiB
PHP
274 lines
9.4 KiB
PHP
<?php
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class PacketTelemetryRepository extends ModelRepository
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{
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private static $_singletonInstance = null;
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public function __construct()
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{
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parent::__construct('PacketTelemetry');
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}
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/**
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* Returnes an initiated PacketTelemetryRepository
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*
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* @return PacketTelemetryRepository
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*/
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public static function getInstance()
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{
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if (self::$_singletonInstance === null) {
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self::$_singletonInstance = new PacketTelemetryRepository();
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}
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return self::$_singletonInstance;
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}
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/**
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* Get object by id
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*
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* @param int $id
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* @param int $timestamp
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* @return PacketTelemetry
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*/
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public function getObjectById($id, $timestamp)
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{
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if (!isInt($id) || !isInt($timestamp)) {
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return new PacketTelemetry(0);
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}
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return $this->getObjectFromSql('select * from packet_telemetry where id = ? and timestamp = ?', [$id, $timestamp]);
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}
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/**
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* Get object by packet id
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*
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* @param int $id
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* @param int $timestamp
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* @return PacketTelemetry
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*/
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public function getObjectByPacketId($id, $timestamp)
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{
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if (!isInt($id) || !isInt($timestamp)) {
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return new PacketTelemetry(0);
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}
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return $this->getObjectFromSql('select * from packet_telemetry where packet_id = ? and timestamp = ?', [$id, $timestamp]);
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}
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/**
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* Get latest object by station id (for the latest 3 days)
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* Note: Some stations can send BITS data independent of normal telemetry packets. This means that the BITS record
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* stored in the station_telemetry_bits_id may be out of date if the BITS record arrived after the last telemetry packet.
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* To get around this, we will check the station_telemetry_bits table for the latest record for this station.
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*
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* @param int $stationId
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* @return array
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*/
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public function getLatestObjectByStationId($stationId, $latestBITS = false)
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{
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if (!isInt($stationId)) {
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return new PacketTelemetry(0);
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}
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if ($latestBITS === false)
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return $this->getObjectFromSql(
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'select * from packet_telemetry
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where station_id = ?
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and timestamp > ?
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order by timestamp desc limit 1', [$stationId, (time() - 24*60*60*3)]
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);
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return $this->getObjectFromSql(
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'select t.*, b.id AS station_telemetry_bits_id
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from packet_telemetry t
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LEFT JOIN station_telemetry_bits b ON (b.station_id = t.station_id AND b.valid_to_ts IS NULL)
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where t.station_id = ?
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and t.timestamp > ?
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order by t.timestamp desc limit 1', [$stationId, (time() - 24*60*60*3)]
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);
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}
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/**
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* Get latest data list by station id (useful for creating a chart)
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*
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* @param int $stationId
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* @param int $startTimestamp
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* @param int $endTimestamp
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* @param array $columns
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* @param int $limit
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* @return array
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*/
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public function getLatestDataListByStationId($stationId, $startTimestamp, $endTimestamp, $columns=['*'], $limit=500)
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{
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if (!isInt($stationId) || !isInt($startTimestamp)|| !isInt($endTimestamp) || !is_array($columns)) {
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return [];
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}
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$sql = 'select ' . implode(',', $columns) . ' from packet_telemetry
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where station_id = ?
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and timestamp >= ?
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and timestamp <= ?
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order by timestamp desc
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limit ?';
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$arg = [$stationId, $startTimestamp, $endTimestamp, $limit];
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$pdo = PDOConnection::getInstance();
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$stmt = $pdo->prepareAndExec($sql, $arg);
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return $stmt->fetchAll(PDO::FETCH_ASSOC);
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}
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/**
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* Get latest BITS data list by station id (useful for creating a chart)
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*
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* @param int $stationId
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* @param int $startTimestamp
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* @param int $endTimestamp
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* @param array $columns
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* @param int $limit
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* @return array
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*/
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public function getLatestBitsDataListByStationId($stationId, $startTimestamp, $endTimestamp, $columns=['t.*, b.bits'], $limit=500)
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{
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if (!isInt($stationId) || !isInt($startTimestamp)|| !isInt($endTimestamp) || !is_array($columns)) {
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return [];
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}
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if ($columns[0] == 't.*, b.bits' && !in_array('station_telemetry_bits_id', $columns)) {
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return [];
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}
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$sql = 'select ' . implode(',', $columns) . ' from packet_telemetry t
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left join station_telemetry_bits b on b.id = t.station_telemetry_bits_id
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where t.station_id = ?
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and t.timestamp >= ?
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and timestamp <= ?
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order by t. timestamp desc
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limit ?';
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$arg = [$stationId, $startTimestamp, $endTimestamp, $limit];
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$pdo = PDOConnection::getInstance();
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$stmt = $pdo->prepareAndExec($sql, $arg);
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return $stmt->fetchAll(PDO::FETCH_ASSOC);
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}
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/**
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* Get latest object list by station id
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* We only include telemetry that has the same params, units and eqns as the latest telemetry packet
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*
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* @param int $stationId
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* @param int $limit
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* @param int $offset
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* @param int $maxDays
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* @return array
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*/
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public function getLatestObjectListByStationId($stationId, $limit, $offset, $maxDays = 7, $sort='desc', $startAt=null, $endAt=null)
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{
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if (!isInt($stationId) || !isInt($limit) || !isInt($offset) || !isInt($maxDays)) {
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return [];
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}
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$latestObject = $this->getLatestObjectByStationId($stationId);
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$sqlParameters = Array();
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$sql = 'select * from packet_telemetry where station_id = ? and timestamp > ? and timestamp < ?';
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$sqlParameters[] = $stationId;
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$sqlParameters[] = $startAt ?? (time() - 24*60*60*$maxDays);
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$sqlParameters[] = $endAt ?? time();
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if ($latestObject->stationTelemetryParamId !== null) {
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$sql .= ' and station_telemetry_param_id = ?';
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$sqlParameters[] = $latestObject->stationTelemetryParamId;
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} else {
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$sql .= ' and station_telemetry_param_id is null';
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}
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if ($latestObject->stationTelemetryUnitId !== null) {
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$sql .= ' and station_telemetry_unit_id = ?';
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$sqlParameters[] = $latestObject->stationTelemetryUnitId;
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} else {
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$sql .= ' and station_telemetry_unit_id is null';
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}
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// if ($latestObject->stationTelemetryEqnsId !== null) {
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// $sql .= ' and station_telemetry_eqns_id = ?';
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// $sqlParameters[] = $latestObject->stationTelemetryEqnsId;
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// } else {
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// $sql .= ' and station_telemetry_eqns_id is null';
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// }
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if ($latestObject->stationTelemetryBitsId !== null) {
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$sql .= ' and station_telemetry_bits_id = ?';
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$sqlParameters[] = $latestObject->stationTelemetryBitsId;
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} else {
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$sql .= ' and station_telemetry_bits_id is null';
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}
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$sql .= ' order by timestamp '.$sort.' limit ? offset ?';
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$sqlParameters[] = $limit;
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$sqlParameters[] = $offset;
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return $this->getObjectListFromSql($sql, $sqlParameters);
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}
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/**
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* Get latest number of packets by station id
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* We only include telemetry that has the same params, units and eqns as the latest telemetry packet
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*
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* @param int $stationId
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* @param int $maxDays
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* @return int
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*/
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public function getLatestNumberOfPacketsByStationId($stationId, $maxDays = 7, $startAt=null, $endAt=null)
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{
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if (!isInt($stationId) || !isInt($maxDays)) {
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return 0;
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}
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$latestObject = $this->getLatestObjectByStationId($stationId);
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$sqlParameters = Array();
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$sql = 'select count(*) c from packet_telemetry where station_id = ? and timestamp > ? and timestamp < ?';
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$sqlParameters[] = $stationId;
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$sqlParameters[] = $startAt ?? (time() - 24*60*60*$maxDays);
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$sqlParameters[] = $endAt ?? time();
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if ($latestObject->stationTelemetryParamId !== null) {
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$sql .= ' and station_telemetry_param_id = ?';
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$sqlParameters[] = $latestObject->stationTelemetryParamId;
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} else {
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$sql .= ' and station_telemetry_param_id is null';
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}
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if ($latestObject->stationTelemetryUnitId !== null) {
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$sql .= ' and station_telemetry_unit_id = ?';
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$sqlParameters[] = $latestObject->stationTelemetryUnitId;
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} else {
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$sql .= ' and station_telemetry_unit_id is null';
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}
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// if ($latestObject->stationTelemetryEqnsId !== null) {
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// $sql .= ' and station_telemetry_eqns_id = ?';
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// $sqlParameters[] = $latestObject->stationTelemetryEqnsId;
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// } else {
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// $sql .= ' and station_telemetry_eqns_id is null';
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// }
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if ($latestObject->stationTelemetryBitsId !== null) {
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$sql .= ' and station_telemetry_bits_id = ?';
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$sqlParameters[] = $latestObject->stationTelemetryBitsId;
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} else {
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$sql .= ' and station_telemetry_bits_id is null';
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}
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$pdo = PDOConnection::getInstance();
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$stmt = $pdo->prepareAndExec($sql, $sqlParameters);
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$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
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$sum = 0;
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foreach($rows as $row) {
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$sum += $row['c'];
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}
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return $sum;
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}
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}
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