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icingaweb2-module-director
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DbObject: add prefetch support

This commit is contained in:
Thomas Gelf 2015-10-28 22:31:10 +01:00
parent 1d2cc2b12d
commit e317b7cf6d
1 changed files with 36 additions and 0 deletions
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36
library/Director/Data/Db/DbObject.php
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@ -74,6 +74,11 @@ abstract class DbObject
*/
protected $autoincKeyName;
/**
* Filled with object instances when prefetchAll is used
*/
protected static $prefetched = array();
/**
* Constructor is not accessible and should not be overridden
*/
@ -834,6 +839,24 @@ abstract class DbObject
return $obj;
}
protected static function getPrefetched($key)
{
if (static::hasPrefetched($key)) {
return static::$prefetched[get_called_class()][$id];
} else {
return false;
}
}
protected static function hasPrefetched($key)
{
if (array_key_exists(get_called_class(), self::$prefetched)) {
return array_key_exists($id, self::$prefetched[get_called_class()]);
} else {
return false;
}
}
public static function loadWithAutoIncId($id, DbConnection $connection)
{
// TODO: Index for prefetch?
@ -848,6 +871,10 @@ abstract class DbObject
public static function load($id, DbConnection $connection)
{
if ($prefetched = static::getPrefetched($id)) {
return $prefetched;
}
$class = get_called_class();
$obj = new $class();
$obj->setConnection($connection)->setKey($id)->loadFromDb();
@ -881,8 +908,17 @@ abstract class DbObject
return $objects;
}
public static function prefetchAll(DbConnection $connection)
{
return self::$prefetched[get_called_class()] = static::fetchAll($connection);
}
public static function exists($id, DbConnection $connection)
{
if (static::getPrefetched($id)) {
return true;
}
$class = get_called_class();
$obj = new $class();
$obj->setConnection($connection)->setKey($id);