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<?php
/**
* @author Robin Appelman <robin@icewind.nl>
*
* @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\FunctionBuilder;
use OC\DB\QueryBuilder\QueryFunction;
use OC\DB\QueryBuilder\QuoteHelper;
use OCP\DB\QueryBuilder\IFunctionBuilder;
class FunctionBuilder implements IFunctionBuilder {
/** @var QuoteHelper */
protected $helper;
/**
* ExpressionBuilder constructor.
*
* @param QuoteHelper $helper
*/
public function __construct(QuoteHelper $helper) {
$this->helper = $helper;
}
public function md5($input) {
return new QueryFunction('MD5(' . $this->helper->quoteColumnName($input) . ')');
}
public function concat($x, $y) {
return new QueryFunction('CONCAT(' . $this->helper->quoteColumnName($x) . ', ' . $this->helper->quoteColumnName($y) . ')');
}
public function substring($input, $start, $length = null) {
if ($length) {
return new QueryFunction('SUBSTR(' . $this->helper->quoteColumnName($input) . ', ' . $this->helper->quoteColumnName($start) . ', ' . $this->helper->quoteColumnName($length) . ')');
} else {
return new QueryFunction('SUBSTR(' . $this->helper->quoteColumnName($input) . ', ' . $this->helper->quoteColumnName($start) . ')');
}
}
}
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