1 files changed, 58 insertions, 0 deletions
diff --git a/www/wiki/includes/libs/rdbms/exception/DBExpectedError.php b/www/wiki/includes/libs/rdbms/exception/DBExpectedError.php
new file mode 100644
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--- /dev/null
+++ b/www/wiki/includes/libs/rdbms/exception/DBExpectedError.php
@@ -0,0 +1,58 @@
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+namespace Wikimedia\Rdbms;
+
+use MessageSpecifier;
+
+/**
+ * Base class for the more common types of database errors. These are known to occur
+ * frequently, so we try to give friendly error messages for them.
+ *
+ * @ingroup Database
+ * @since 1.23
+ */
+class DBExpectedError extends DBError implements MessageSpecifier {
+	/** @var string[] Message parameters */
+	protected $params;
+
+	/**
+	 * @param IDatabase|null $db
+	 * @param string $error
+	 * @param array $params
+	 * @param \Exception|\Throwable|null $prev
+	 */
+	public function __construct(
+		IDatabase $db = null, $error, array $params = [], $prev = null
+	) {
+		parent::__construct( $db, $error, $prev );
+		$this->params = $params;
+	}
+
+	public function getKey() {
+		return 'databaseerror-text';
+	}
+
+	public function getParams() {
+		return $this->params;
+	}
+}
+
+class_alias( DBExpectedError::class, 'DBExpectedError' );