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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Joas Schilling <coding@schilljs.com>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\DB\QueryBuilder\ExpressionBuilder;
use OC\DB\ConnectionAdapter;
use OC\DB\QueryBuilder\QueryFunction;
use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\DB\QueryBuilder\IQueryFunction;
class MySqlExpressionBuilder extends ExpressionBuilder {
/** @var string */
protected $collation;
/**
* @param ConnectionAdapter $connection
* @param IQueryBuilder $queryBuilder
*/
public function __construct(ConnectionAdapter $connection, IQueryBuilder $queryBuilder) {
parent::__construct($connection, $queryBuilder);
$params = $connection->getInner()->getParams();
$this->collation = $params['collation'] ?? (($params['charset'] ?? 'utf8') . '_general_ci');
}
/**
* @inheritdoc
*/
public function iLike($x, $y, $type = null): string {
$x = $this->helper->quoteColumnName($x);
$y = $this->helper->quoteColumnName($y);
return $this->expressionBuilder->comparison($x, ' COLLATE ' . $this->collation . ' LIKE', $y);
}
/**
* Returns a IQueryFunction that casts the column to the given type
*
* @param string|IQueryFunction $column
* @param mixed $type One of IQueryBuilder::PARAM_*
* @psalm-param IQueryBuilder::PARAM_* $type
* @return IQueryFunction
*/
public function castColumn($column, $type): IQueryFunction {
switch ($type) {
case IQueryBuilder::PARAM_STR:
return new QueryFunction('CAST(' . $this->helper->quoteColumnName($column) . ' AS CHAR)');
default:
return parent::castColumn($column, $type);
}
}
}
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