76 lines
2.7 KiB
PHP
76 lines
2.7 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
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*
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* @author Robin Appelman <robin@icewind.nl>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\DB\QueryBuilder\FunctionBuilder;
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use OC\DB\QueryBuilder\QueryFunction;
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use OCP\DB\QueryBuilder\ILiteral;
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use OCP\DB\QueryBuilder\IParameter;
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use OCP\DB\QueryBuilder\IQueryFunction;
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class OCIFunctionBuilder extends FunctionBuilder {
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public function md5($input) {
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return new QueryFunction('LOWER(DBMS_OBFUSCATION_TOOLKIT.md5 (input => UTL_RAW.cast_to_raw(' . $this->helper->quoteColumnName($input) .')))');
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}
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/**
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* As per https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions060.htm
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* Oracle uses the first value to cast the rest or the values. So when the
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* first value is a literal, plain value or column, instead of doing the
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* math, it will cast the expression to int and continue with a "0". So when
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* the second parameter is a function or column, we have to put that as
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* first parameter.
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*
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* @param string|ILiteral|IParameter|IQueryFunction $x
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* @param string|ILiteral|IParameter|IQueryFunction $y
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* @return QueryFunction
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*/
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public function greatest($x, $y) {
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if (is_string($y) || $y instanceof IQueryFunction) {
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return parent::greatest($y, $x);
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}
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return parent::greatest($x, $y);
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}
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/**
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* As per https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions060.htm
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* Oracle uses the first value to cast the rest or the values. So when the
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* first value is a literal, plain value or column, instead of doing the
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* math, it will cast the expression to int and continue with a "0". So when
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* the second parameter is a function or column, we have to put that as
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* first parameter.
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*
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* @param string|ILiteral|IParameter|IQueryFunction $x
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* @param string|ILiteral|IParameter|IQueryFunction $y
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* @return QueryFunction
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*/
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public function least($x, $y) {
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if (is_string($y) || $y instanceof IQueryFunction) {
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return parent::least($y, $x);
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}
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return parent::least($x, $y);
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}
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}
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