1 files changed, 95 insertions, 0 deletions
diff --git a/www/wiki/includes/user/UserArray.php b/www/wiki/includes/user/UserArray.php
new file mode 100644
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+++ b/www/wiki/includes/user/UserArray.php
@@ -0,0 +1,95 @@
+<?php
+/**
+ * Class to walk into a list of User objects.
+ *
+ * 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
+ */
+
+use Wikimedia\Rdbms\IResultWrapper;
+
+abstract class UserArray implements Iterator {
+	/**
+	 * @param IResultWrapper $res
+	 * @return UserArrayFromResult
+	 */
+	static function newFromResult( $res ) {
+		$userArray = null;
+		if ( !Hooks::run( 'UserArrayFromResult', [ &$userArray, $res ] ) ) {
+			return null;
+		}
+		if ( $userArray === null ) {
+			$userArray = self::newFromResult_internal( $res );
+		}
+		return $userArray;
+	}
+
+	/**
+	 * @param array $ids
+	 * @return UserArrayFromResult|ArrayIterator
+	 */
+	static function newFromIDs( $ids ) {
+		$ids = array_map( 'intval', (array)$ids ); // paranoia
+		if ( !$ids ) {
+			// Database::select() doesn't like empty arrays
+			return new ArrayIterator( [] );
+		}
+		$dbr = wfGetDB( DB_REPLICA );
+		$userQuery = User::getQueryInfo();
+		$res = $dbr->select(
+			$userQuery['tables'],
+			$userQuery['fields'],
+			[ 'user_id' => array_unique( $ids ) ],
+			__METHOD__,
+			[],
+			$userQuery['joins']
+		);
+		return self::newFromResult( $res );
+	}
+
+	/**
+	 * @since 1.25
+	 * @param array $names
+	 * @return UserArrayFromResult|ArrayIterator
+	 */
+	static function newFromNames( $names ) {
+		$names = array_map( 'strval', (array)$names ); // paranoia
+		if ( !$names ) {
+			// Database::select() doesn't like empty arrays
+			return new ArrayIterator( [] );
+		}
+		$dbr = wfGetDB( DB_REPLICA );
+		$userQuery = User::getQueryInfo();
+		$res = $dbr->select(
+			$userQuery['tables'],
+			$userQuery['fields'],
+			[ 'user_name' => array_unique( $names ) ],
+			__METHOD__,
+			[],
+			$userQuery['joins']
+		);
+		return self::newFromResult( $res );
+	}
+
+	/**
+	 * @param IResultWrapper $res
+	 * @return UserArrayFromResult
+	 */
+	protected static function newFromResult_internal( $res ) {
+		return new UserArrayFromResult( $res );
+	}
+}