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91 lines
3.4 KiB
PHP
91 lines
3.4 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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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($input): IQueryFunction {
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if (version_compare($this->connection->getServerVersion(), '20', '>=')) {
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return new QueryFunction('LOWER(STANDARD_HASH(' . $this->helper->quoteColumnName($input) . ", 'MD5'))");
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}
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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 $y
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* @return IQueryFunction
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*/
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public function greatest($x, $y): IQueryFunction {
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if (is_string($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 $y
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* @return IQueryFunction
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*/
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public function least($x, $y): IQueryFunction {
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if (is_string($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, $y);
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}
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public function concat($x, ...$expr): IQueryFunction {
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$args = func_get_args();
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$list = [];
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foreach ($args as $item) {
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$list[] = $this->helper->quoteColumnName($item);
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}
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return new QueryFunction(sprintf('(%s)', implode(' || ', $list)));
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}
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public function groupConcat($expr, ?string $separator = ','): IQueryFunction {
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$orderByClause = ' WITHIN GROUP(ORDER BY NULL)';
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if (is_null($separator)) {
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return new QueryFunction('LISTAGG(' . $this->helper->quoteColumnName($expr) . ')' . $orderByClause);
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}
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$separator = $this->connection->quote($separator);
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return new QueryFunction('LISTAGG(' . $this->helper->quoteColumnName($expr) . ', ' . $separator . ')' . $orderByClause);
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}
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public function octetLength($field, $alias = ''): IQueryFunction {
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$alias = $alias ? (' AS ' . $this->helper->quoteColumnName($alias)) : '';
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$quotedName = $this->helper->quoteColumnName($field);
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return new QueryFunction('LENGTHB(' . $quotedName . ')' . $alias);
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}
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public function charLength($field, $alias = ''): IQueryFunction {
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$alias = $alias ? (' AS ' . $this->helper->quoteColumnName($alias)) : '';
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$quotedName = $this->helper->quoteColumnName($field);
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return new QueryFunction('LENGTH(' . $quotedName . ')' . $alias);
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}
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}
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