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heavy database optimizions

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git-svn-id: file:///home/jan/tmp/wetterstation/trunk@243 dd492736-c11a-0410-ad51-8c26713eaf7f
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jan
2008-03-20 17:09:11 +00:00
parent cbd3151a56
commit 53e83e9fd4
8 changed files with 117 additions and 83 deletions
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webstuff/frontend/php_inc/modules/rain.inc.php
+2 -2
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@@ -34,13 +34,13 @@ class Rain{
/* Momentane Werte aus der Datenbank holen */
function _getNowValues($interval){
$result = $this->connection->fetchQueryResultLine("SELECT sum(count) as rain FROM ".$this->table." WHERE sens_id=".$this->sensId." AND timestamp>(current_timestamp - INTERVAL '".$interval."')");
$result = $this->connection->fetchQueryResultLine("SELECT sum(count) as rain FROM ".$this->table." WHERE sens_id=".$this->sensId." AND timestamp>(select (current_timestamp - INTERVAL '".$interval."'))");
return $result['rain'];
}
/* Maximal gemessene Werte aus der Datenbank holen */
function _getMaxValues($unit, $dateFormat){ // unit = hour, minute, ...
return $this->connection->fetchQueryResultLine("SELECT to_char(ts, '".$dateFormat."') as date, val FROM ".$this->table."_".$unit." WHERE sens_id=".$this->sensId." AND val=(SELECT max(val) FROM ".$this->table."_".$unit." WHERE sens_id=".$this->sensId.") ORDER BY ts DESC LIMIT 1");
return $this->connection->fetchQueryResultLine("SELECT to_char(ts, '".$dateFormat."') as date, val FROM ".$this->table."_".$unit." WHERE sens_id=".$this->sensId." ORDER BY val DESC, ts DESC LIMIT 1");
}