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<?php
namespace Bitrix\Disk\Internals;
use Bitrix\Main\Application;
use Bitrix\Main\DB\MysqlCommonConnection;
use Bitrix\Main\Entity;
use Bitrix\Main\Type\DateTime;
/**
* Class RecentlyUsedTable
*
* Fields:
* <ul>
* <li> ID int mandatory
* <li> USER_ID int mandatory
* <li> OBJECT_ID int mandatory
* <li> CREATE_TIME datetime mandatory
* </ul>
*
* @package Bitrix\Disk\Internals
**/
final class RecentlyUsedTable extends DataManager
{
const MAX_COUNT_FOR_USER = 50;
/**
* Returns DB table name for entity
*
* @return string
*/
public static function getTableName()
{
return 'b_disk_recently_used';
}
/**
* Returns entity map definition
*
* @return array
*/
public static function getMap()
{
return array(
'ID' => array(
'data_type' => 'integer',
'primary' => true,
'autocomplete' => true,
),
'USER_ID' => array(
'data_type' => 'integer',
'required' => true,
),
'OBJECT_ID' => array(
'data_type' => 'integer',
'required' => true,
),
'CREATE_TIME' => array(
'data_type' => 'datetime',
'required' => true,
'default_value' => function() {
return new DateTime();
},
),
);
}
/**
* Deletes rows by filter.
* @param array $filter Filter does not look like filter in getList. It depends by current implementation.
* @internal
* @return void
*/
public static function deleteBatch(array $filter)
{
parent::deleteBatch($filter);
}
/**
* Adds rows to table.
* @param array $items Items.
* @internal
* @return void
*/
public static function insertBatch(array $items)
{
parent::insertBatch($items);
}
/**
* Deletes old objects from recently used log by user.
* @param int $userId User id.
* @return void
*/
public static function deleteOldObjects($userId)
{
$offset = self::MAX_COUNT_FOR_USER - 1;
$connection = Application::getConnection();
if($connection instanceof MysqlCommonConnection)
{
$connection->queryExecute("
DELETE t
FROM
b_disk_recently_used AS t
JOIN
( SELECT ID
FROM b_disk_recently_used
WHERE USER_ID = {$userId}
ORDER BY ID DESC
LIMIT 1 OFFSET {$offset}
) tlimit ON t.ID < tlimit.ID AND t.USER_ID = {$userId}
");
}
else
{
$id = static::getList(array(
'select' => array('ID'),
'filter' => array(
'USER_ID' => $userId,
),
'order' => array('ID' => 'DESC'),
'limit' => 1,
'offset' => $offset,
))->fetch();
$id = !empty($id['ID'])? (int)$id['ID'] : null;
if($id)
{
$connection->queryExecute("
DELETE FROM b_disk_recently_used WHERE ID < {$id} AND USER_ID = {$userId}
");
}
}
}
}