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Code Issues Releases Wiki Activity

frontend: caching added

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git-svn-id: file:///home/jan/tmp/wetterstation/trunk@247 dd492736-c11a-0410-ad51-8c26713eaf7f
This commit is contained in:
jan
2008-03-29 11:11:47 +00:00
parent 3534adf03a
commit 25960c71aa
10 changed files with 254 additions and 63 deletions
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webstuff/frontend/php_inc/modules/sensor.inc.php
+44 -34
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@@ -8,6 +8,7 @@
include_once($path."php_inc/connection.inc.php");
include_once($path."php_inc/cacher.inc.php");
$sensor_data = NULL;
$extrema_fields = array(
@@ -47,10 +48,13 @@ class Sensor{
function _fetchSensorData($sensId, &$connection){
global $sensor_data;
if ($sensor_data == NULL){
$query = "SELECT sensoren.*, typen.tabelle FROM sensoren, typen where typen.typ = sensoren.typ";
$result = $connection->getRawResult($query);
while ($array = pg_fetch_assoc($result)){
$sensor_data[$array['id']] = $array;
if (($sensor_data = Cacher::getCache("SensorData", 20)) == false){
$query = "SELECT sensoren.*, typen.tabelle FROM sensoren, typen where typen.typ = sensoren.typ";
$result = $connection->getRawResult($query);
while ($array = pg_fetch_assoc($result)){
$sensor_data[$array['id']] = $array;
}
Cacher::setCache("SensorData", $sensor_data);
}
}
return $sensor_data[$sensId];
@@ -87,17 +91,20 @@ class Sensor{
function get_sensor_extrema($sensId, &$connection, $field){
global $extrema_fields, $sensor_extrema;
if (! array_key_exists($sensId, $sensor_extrema)){
$data = Sensor::_fetchSensorData($sensId, &$connection);
$query = "SELECT ";
for ($i = 0; $i < count($extrema_fields[$data['typ']]); $i++){
if ($i != 0)
$query .= ", ";
$query .= "min(".$extrema_fields[$data['typ']][$i].") AS min_".$extrema_fields[$data['typ']][$i].", ";
$query .= "max(".$extrema_fields[$data['typ']][$i].") AS max_".$extrema_fields[$data['typ']][$i]." ";
if (($sensor_extrema[$sensId] = Cacher::getCache("SensorExtrema_ID_".$sensId, 10)) == false){
$data = Sensor::_fetchSensorData($sensId, &$connection);
$query = "SELECT ";
for ($i = 0; $i < count($extrema_fields[$data['typ']]); $i++){
if ($i != 0)
$query .= ", ";
$query .= "min(".$extrema_fields[$data['typ']][$i].") AS min_".$extrema_fields[$data['typ']][$i].", ";
$query .= "max(".$extrema_fields[$data['typ']][$i].") AS max_".$extrema_fields[$data['typ']][$i]." ";
}
$query .= "FROM ".$data['tabelle']." WHERE sens_id = ".$sensId;
$res = $connection->fetchQueryResultLine($query);
$sensor_extrema[$sensId] = $res;
Cacher::setCache("SensorExtrema_ID_".$sensId, $sensor_extrema[$sensId]);
}
$query .= "FROM ".$data['tabelle']." WHERE sens_id = ".$sensId;
$res = $connection->fetchQueryResultLine($query);
$sensor_extrema[$sensId] = $res;
}
return array('min' => $sensor_extrema[$sensId]['min_'.$field], 'max' => $sensor_extrema[$sensId]['max_'.$field]);
}
@@ -110,28 +117,31 @@ class Sensor{
function get_sensor_average($sensId, &$connection, $field, $init_interval = 0){
global $extrema_fields, $sensor_average;
if ((! array_key_exists($init_interval, $sensor_average)) || (! array_key_exists($sensId, $sensor_average[$init_interval]))){
$interval = $init_interval;
$data = Sensor::_fetchSensorData($sensId, &$connection);
$query = "SELECT count(".$extrema_fields[$data['typ']][0].") AS count, ";
for ($i = 0; $i < count($extrema_fields[$data['typ']]); $i++){
if ($i != 0)
$query .= ", ";
$query .= "avg(".$extrema_fields[$data['typ']][$i].") AS ".$extrema_fields[$data['typ']][$i]." ";
}
$query .= "FROM ".$data['tabelle']." WHERE sens_id = ".$sensId." AND timestamp>(select(current_timestamp - INTERVAL '";
$res = array('count' => 0, 'average' => 0);
$m = 0;
if ($interval == 0){
while ($res['count'] < 4) {
$m++;
$interval = $m*(Config::getAvInterval());
if (($sensor_average[$init_interval][$sensId] = Cacher::getCache("SensorAverage_ID_".$sensId."_Interval_".$init_interval, 10)) == false){
$interval = $init_interval;
$data = Sensor::_fetchSensorData($sensId, &$connection);
$query = "SELECT count(".$extrema_fields[$data['typ']][0].") AS count, ";
for ($i = 0; $i < count($extrema_fields[$data['typ']]); $i++){
if ($i != 0)
$query .= ", ";
$query .= "avg(".$extrema_fields[$data['typ']][$i].") AS ".$extrema_fields[$data['typ']][$i]." ";
}
$query .= "FROM ".$data['tabelle']." WHERE sens_id = ".$sensId." AND timestamp>(select(current_timestamp - INTERVAL '";
$res = array('count' => 0, 'average' => 0);
$m = 0;
if ($interval == 0){
while ($res['count'] < 4) {
$m++;
$interval = $m*(Config::getAvInterval());
$res = $connection->fetchQueryResultLine($query.$interval." minutes'))");
}
} else {
$res = $connection->fetchQueryResultLine($query.$interval." minutes'))");
}
} else {
$res = $connection->fetchQueryResultLine($query.$interval." minutes'))");
}
$res['interval'] = $interval;
$sensor_average[$init_interval][$sensId] = $res;
Cacher::setCache("SensorAverage_ID_".$sensId."_Interval_".$init_interval, $sensor_average[$init_interval][$sensId]);
}
$res['interval'] = $interval;
$sensor_average[$init_interval][$sensId] = $res;
}
return array('average' => $sensor_average[$init_interval][$sensId][$field], 'count' => $sensor_average[$init_interval][$sensId]['count'], 'interval' => $sensor_average[$init_interval][$sensId]['interval']);
}