From ca32f08966f1b51fcb19460f0996bb0c4048e6fe Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Sat, 3 Dec 2011 13:29:22 +0100
Subject: Update to MediaWiki 1.18.0

* also update ArchLinux skin to chagnes in MonoBook
* Use only css to hide our menu bar when printing
---
 includes/db/CloneDatabase.php | 158 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 158 insertions(+)
 create mode 100644 includes/db/CloneDatabase.php

(limited to 'includes/db/CloneDatabase.php')

diff --git a/includes/db/CloneDatabase.php b/includes/db/CloneDatabase.php
new file mode 100644
index 00000000..3357268d
--- /dev/null
+++ b/includes/db/CloneDatabase.php
@@ -0,0 +1,158 @@
+<?php
+/**
+ * Helper class for making a copy of the database, mostly for unit testing.
+ *
+ * Copyright © 2010 Chad Horohoe <chad@anyonecanedit.org>
+ * http://www.mediawiki.org/
+ *
+ * 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
+ *
+ * @ingroup Database
+ */
+
+class CloneDatabase {
+
+	/**
+	 * Table prefix for cloning
+	 * @var String
+	 */
+	private $newTablePrefix = '';
+
+	/**
+	 * Current table prefix
+	 * @var String
+	 */
+	private $oldTablePrefix = '';
+
+	/**
+	 * List of tables to be cloned
+	 * @var Array
+	 */
+	private $tablesToClone = array();
+
+	/**
+	 * Should we DROP tables containing the new names?
+	 * @var Bool
+	 */
+	private $dropCurrentTables = true;
+
+	/**
+	 * Whether to use temporary tables or not
+	 * @var Bool
+	 */
+	private $useTemporaryTables = true;
+
+	/**
+	 * Constructor
+	 *
+	 * @param $db DatabaseBase A database subclass
+	 * @param $tablesToClone Array An array of tables to clone, unprefixed
+	 * @param $newTablePrefix String Prefix to assign to the tables
+	 * @param $oldTablePrefix String Prefix on current tables, if not $wgDBprefix
+	 * @param $dropCurrentTables bool
+	 */
+	public function __construct( DatabaseBase $db, array $tablesToClone,
+		$newTablePrefix, $oldTablePrefix = '', $dropCurrentTables = true )
+	{
+		$this->db = $db;
+		$this->tablesToClone = $tablesToClone;
+		$this->newTablePrefix = $newTablePrefix;
+		$this->oldTablePrefix = $oldTablePrefix ? $oldTablePrefix : $this->db->tablePrefix();
+		$this->dropCurrentTables = $dropCurrentTables;
+	}
+
+	/**
+	 * Set whether to use temporary tables or not
+	 * @param $u Bool Use temporary tables when cloning the structure
+	 */
+	public function useTemporaryTables( $u = true ) {
+		$this->useTemporaryTables = $u;
+	}
+
+	/**
+	 * Clone the table structure
+	 */
+	public function cloneTableStructure() {
+		
+		foreach( $this->tablesToClone as $tbl ) {
+			# Clean up from previous aborted run.  So that table escaping
+			# works correctly across DB engines, we need to change the pre-
+			# fix back and forth so tableName() works right.
+			
+			self::changePrefix( $this->oldTablePrefix );
+			$oldTableName = $this->db->tableName( $tbl, false );
+			
+			self::changePrefix( $this->newTablePrefix );
+			$newTableName = $this->db->tableName( $tbl, false );
+			
+			if( $this->dropCurrentTables && !in_array( $this->db->getType(), array( 'postgres' ) ) ) {
+				$this->db->dropTable( $tbl, __METHOD__ );
+				wfDebug( __METHOD__." dropping {$newTableName}\n", true);
+				//Dropping the oldTable because the prefix was changed
+			}
+
+			# Create new table
+			wfDebug( __METHOD__." duplicating $oldTableName to $newTableName\n", true );
+			$this->db->duplicateTableStructure( $oldTableName, $newTableName, $this->useTemporaryTables );
+			
+		}
+		
+	}
+
+	/**
+	 * Change the prefix back to the original.
+	 * @param $dropTables bool Optionally drop the tables we created
+	 */
+	public function destroy( $dropTables = false ) {
+		if( $dropTables ) {
+			self::changePrefix( $this->newTablePrefix );
+			foreach( $this->tablesToClone as $tbl ) {
+				$this->db->dropTable( $tbl );
+			}
+		}
+		self::changePrefix( $this->oldTablePrefix );
+	}
+
+	/**
+	 * Change the table prefix on all open DB connections/
+	 *
+	 * @param  $prefix
+	 * @return void
+	 */
+	public static function changePrefix( $prefix ) {
+		global $wgDBprefix;
+		wfGetLBFactory()->forEachLB( array( 'CloneDatabase', 'changeLBPrefix' ), array( $prefix ) );
+		$wgDBprefix = $prefix;
+	}
+
+	/**
+	 * @param  $lb LoadBalancer
+	 * @param  $prefix
+	 * @return void
+	 */
+	public static function changeLBPrefix( $lb, $prefix ) {
+		$lb->forEachOpenConnection( array( 'CloneDatabase', 'changeDBPrefix' ), array( $prefix ) );
+	}
+
+	/**
+	 * @param  $db DatabaseBase
+	 * @param  $prefix
+	 * @return void
+	 */
+	public static function changeDBPrefix( $db, $prefix ) {
+		$db->tablePrefix( $prefix );
+	}
+}
-- 
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