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/cache/LinkBatch.php | 195 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 195 insertions(+)
 create mode 100644 includes/cache/LinkBatch.php

(limited to 'includes/cache/LinkBatch.php')

diff --git a/includes/cache/LinkBatch.php b/includes/cache/LinkBatch.php
new file mode 100644
index 00000000..0bd869fc
--- /dev/null
+++ b/includes/cache/LinkBatch.php
@@ -0,0 +1,195 @@
+<?php
+
+/**
+ * Class representing a list of titles
+ * The execute() method checks them all for existence and adds them to a LinkCache object
+ *
+ * @ingroup Cache
+ */
+class LinkBatch {
+	/**
+	 * 2-d array, first index namespace, second index dbkey, value arbitrary
+	 */
+	var $data = array();
+
+	/**
+	 * For debugging which method is using this class.
+	 */
+	protected $caller;
+
+	function __construct( $arr = array() ) {
+		foreach( $arr as $item ) {
+			$this->addObj( $item );
+		}
+	}
+
+	/**
+	 * Use ->setCaller( __METHOD__ ) to indicate which code is using this
+	 * class. Only used in debugging output.
+	 * @since 1.17
+	 *
+	 * @param $caller
+	 */
+	public function setCaller( $caller ) {
+		$this->caller = $caller;
+	}
+
+	/**
+	 * @param $title Title
+	 */
+	public function addObj( $title ) {
+		if ( is_object( $title ) ) {
+			$this->add( $title->getNamespace(), $title->getDBkey() );
+		} else {
+			wfDebug( "Warning: LinkBatch::addObj got invalid title object\n" );
+		}
+	}
+
+	public function add( $ns, $dbkey ) {
+		if ( $ns < 0 ) {
+			return;
+		}
+		if ( !array_key_exists( $ns, $this->data ) ) {
+			$this->data[$ns] = array();
+		}
+
+		$this->data[$ns][str_replace( ' ', '_', $dbkey )] = 1;
+	}
+
+	/**
+	 * Set the link list to a given 2-d array
+	 * First key is the namespace, second is the DB key, value arbitrary
+	 *
+	 * @param $array array
+	 */
+	public function setArray( $array ) {
+		$this->data = $array;
+	}
+
+	/**
+	 * Returns true if no pages have been added, false otherwise.
+	 *
+	 * @return bool
+	 */
+	public function isEmpty() {
+		return ($this->getSize() == 0);
+	}
+
+	/**
+	 * Returns the size of the batch.
+	 *
+	 * @return int
+	 */
+	public function getSize() {
+		return count( $this->data );
+	}
+
+	/**
+	 * Do the query and add the results to the LinkCache object
+	 * Return an array mapping PDBK to ID
+	 */
+	public function execute() {
+		$linkCache = LinkCache::singleton();
+		return $this->executeInto( $linkCache );
+	}
+
+	/**
+	 * Do the query and add the results to a given LinkCache object
+	 * Return an array mapping PDBK to ID
+	 */
+	protected function executeInto( &$cache ) {
+		wfProfileIn( __METHOD__ );
+		$res = $this->doQuery();
+		$ids = $this->addResultToCache( $cache, $res );
+		$this->doGenderQuery();
+		wfProfileOut( __METHOD__ );
+		return $ids;
+	}
+
+	/**
+	 * Add a ResultWrapper containing IDs and titles to a LinkCache object.
+	 * As normal, titles will go into the static Title cache field.
+	 * This function *also* stores extra fields of the title used for link
+	 * parsing to avoid extra DB queries.
+	 *
+	 * @param $cache
+	 * @param $res
+	 */
+	public function addResultToCache( $cache, $res ) {
+		if ( !$res ) {
+			return array();
+		}
+
+		// For each returned entry, add it to the list of good links, and remove it from $remaining
+
+		$ids = array();
+		$remaining = $this->data;
+		foreach ( $res as $row ) {
+			$title = Title::makeTitle( $row->page_namespace, $row->page_title );
+			$cache->addGoodLinkObj( $row->page_id, $title, $row->page_len, $row->page_is_redirect, $row->page_latest );
+			$ids[$title->getPrefixedDBkey()] = $row->page_id;
+			unset( $remaining[$row->page_namespace][$row->page_title] );
+		}
+
+		// The remaining links in $data are bad links, register them as such
+		foreach ( $remaining as $ns => $dbkeys ) {
+			foreach ( $dbkeys as $dbkey => $unused ) {
+				$title = Title::makeTitle( $ns, $dbkey );
+				$cache->addBadLinkObj( $title );
+				$ids[$title->getPrefixedDBkey()] = 0;
+			}
+		}
+		return $ids;
+	}
+
+	/**
+	 * Perform the existence test query, return a ResultWrapper with page_id fields
+	 */
+	public function doQuery() {
+		if ( $this->isEmpty() ) {
+			return false;
+		}
+		wfProfileIn( __METHOD__ );
+
+		// This is similar to LinkHolderArray::replaceInternal
+		$dbr = wfGetDB( DB_SLAVE );
+		$table = 'page';
+		$fields = array( 'page_id', 'page_namespace', 'page_title', 'page_len',
+			'page_is_redirect', 'page_latest' );
+		$conds = $this->constructSet( 'page', $dbr );
+
+		// Do query
+		$caller = __METHOD__;
+		if ( strval( $this->caller ) !== '' ) {
+			$caller .= " (for {$this->caller})";
+		}
+		$res = $dbr->select( $table, $fields, $conds, $caller );
+		wfProfileOut( __METHOD__ );
+		return $res;
+	}
+
+	public function doGenderQuery() {
+		if ( $this->isEmpty() ) {
+			return false;
+		}
+
+		global $wgContLang;
+		if ( !$wgContLang->needsGenderDistinction() ) {
+			return false;
+		}
+
+		$genderCache = GenderCache::singleton();
+		$genderCache->dolinkBatch( $this->data, $this->caller );
+	}
+
+	/**
+	 * Construct a WHERE clause which will match all the given titles.
+	 *
+	 * @param $prefix String: the appropriate table's field name prefix ('page', 'pl', etc)
+	 * @param $db DatabaseBase object to use
+	 * @return mixed string with SQL where clause fragment, or false if no items.
+	 */
+	public function constructSet( $prefix, $db ) {
+		return $db->makeWhereFrom2d( $this->data, "{$prefix}_namespace", "{$prefix}_title" );
+	}
+}
-- 
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