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<?php
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
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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