1 files changed, 0 insertions, 75 deletions
diff --git a/lib/private/db/querybuilder/quotehelper.php b/lib/private/db/querybuilder/quotehelper.php
deleted file mode 100644
index fda243a3786..00000000000
--- a/lib/private/db/querybuilder/quotehelper.php
+++ /dev/null
@@ -1,75 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @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');
-		}
-
-		if (substr_count($string, '.')) {
-			list($alias, $columnName) = explode('.', $string, 2);
-
-			if ($columnName === '*') {
-				return $string;
-			}
-
-			return $alias . '.`' . $columnName . '`';
-		}
-
-		return '`' . $string . '`';
-	}
-}