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caching for classes name / id mapping in attempt to reduce db queries #15

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caching for classes name / id mapping in attempt to reduce db queries #15

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5971486
fix: creat new patch on 10.6 base
zoidbergx Jun 13, 2023
7a3036a
chore: removed unused method call
zoidbergx Jun 13, 2023
34eba5a
fix: write cache immediately to prevent issues during creation of new…
zoidbergx Jun 13, 2023
f9ec009
fix: clear cache tags before checking if class definition exists
zoidbergx Jun 13, 2023
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2 changes: 2 additions & 0 deletions models/DataObject/ClassDefinition.php
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Original file line number Diff line number Diff line change
Expand Up @@ -407,6 +407,8 @@ public static function cleanupForExport(&$data)
*/
private function exists()
{
// cache for class definitions needs to be cleared here to avoid wrong exists but still using the cache
Cache::clearTags(['ClassDefinitionDao']);
$name = $this->getDao()->getNameById($this->getId());

return is_string($name);
Expand Down
37 changes: 33 additions & 4 deletions models/DataObject/ClassDefinition/Dao.php
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@

namespace Pimcore\Model\DataObject\ClassDefinition;

use Pimcore\Cache;
use Pimcore\Db\Helper;
use Pimcore\Logger;
use Pimcore\Model;
use Pimcore\Model\DataObject;
Expand All @@ -39,6 +41,26 @@ class Dao extends Model\Dao\AbstractDao
*/
protected $tableDefinitions = null;

/**
* Helper to minimize db queries used when looking up classes id / name.
*
* Mapping is actively updated as soon as a class is saved.
*
* @param bool $skipCache
* @return array
* @see self::save()
*
*/
protected function getClassNameIdMap(bool $skipCache = false): array
{
static $mapping;
if ($skipCache || (!isset($mapping) && !is_array(($mapping = Cache::load(md5(__METHOD__)))))) {
$mapping = Helper::fetchPairs($this->db, 'SELECT id, name FROM classes');
Cache::save($mapping, md5(__METHOD__), ['ClassDefinitionDao'], null, 0, true);
}
return $mapping;
}

/**
* @param string $id
*
Expand All @@ -48,9 +70,8 @@ public function getNameById($id)
{
try {
if (!empty($id)) {
if ($name = $this->db->fetchOne('SELECT name FROM classes WHERE id = ?', [$id])) {
return $name;
}
$mapping = $this->getClassNameIdMap();
return $mapping[$id] ?? null;
}
} catch (\Exception $e) {
}
Expand All @@ -71,7 +92,11 @@ public function getIdByName($name)

try {
if (!empty($name)) {
$id = $this->db->fetchOne('SELECT id FROM classes WHERE name = ?', [$name]);
$mapping = $this->getClassNameIdMap();
if (($v = array_search($name, $mapping, true)) !== false) {
$id = $v;
}

}
} catch (\Exception $e) {
}
Expand All @@ -97,6 +122,8 @@ public function save($isUpdate = true)
}

$this->update();
// Update class name / id mapping in cache.
$this->getClassNameIdMap(true);
}

/**
Expand Down Expand Up @@ -300,6 +327,8 @@ public function delete()

// clean slug table
DataObject\Data\UrlSlug::handleClassDeleted($this->model->getId());
// Update class name / id mapping in cache.
$this->getClassNameIdMap(true);
}

/**
Expand Down