83 lines
2.3 KiB
PHP
83 lines
2.3 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Joas Schilling <coding@schilljs.com>
|
|
* @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;
|
|
|
|
use OCP\DB\QueryBuilder\ILiteral;
|
|
use OCP\DB\QueryBuilder\IParameter;
|
|
use OCP\DB\QueryBuilder\IQueryFunction;
|
|
|
|
class QuoteHelper {
|
|
/**
|
|
* @param array|string|ILiteral|IParameter|IQueryFunction $strings string, Literal or Parameter
|
|
* @return array|string
|
|
*/
|
|
public function quoteColumnNames($strings) {
|
|
if (!is_array($strings)) {
|
|
return $this->quoteColumnName($strings);
|
|
}
|
|
|
|
$return = [];
|
|
foreach ($strings as $string) {
|
|
$return[] = $this->quoteColumnName($string);
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* @param string|ILiteral|IParameter|IQueryFunction $string string, Literal or Parameter
|
|
* @return string
|
|
*/
|
|
public function quoteColumnName($string) {
|
|
if ($string instanceof IParameter || $string instanceof ILiteral || $string instanceof IQueryFunction) {
|
|
return (string) $string;
|
|
}
|
|
|
|
if ($string === null || $string === 'null' || $string === '*') {
|
|
return $string;
|
|
}
|
|
|
|
if (!is_string($string)) {
|
|
throw new \InvalidArgumentException('Only strings, Literals and Parameters are allowed');
|
|
}
|
|
|
|
$string = str_replace(' AS ', ' as ', $string);
|
|
if (substr_count($string, ' as ')) {
|
|
return implode(' as ', array_map([$this, 'quoteColumnName'], explode(' as ', $string, 2)));
|
|
}
|
|
|
|
if (substr_count($string, '.')) {
|
|
[$alias, $columnName] = explode('.', $string, 2);
|
|
|
|
if ($columnName === '*') {
|
|
return '`' . $alias . '`.*';
|
|
}
|
|
|
|
return '`' . $alias . '`.`' . $columnName . '`';
|
|
}
|
|
|
|
return '`' . $string . '`';
|
|
}
|
|
}
|