From 0903545203a1f603e17fb478db53122e605b21fd Mon Sep 17 00:00:00 2001
From: Daniel De Marco <ddm@bartol.udel.edu>
Date: Mon, 3 Feb 2014 15:00:53 -0500
Subject: [PATCH] Add columns option to Special:PrefixIndex

Adds support for specifying the number of output columns to use in the
table generated by Special:PrefixIndex. Can be used as follows:

{{Special:PrefixIndex/{{FULLPAGENAME}}/|columns=2}}

Bug: 60759
Change-Id: Ic824351132ec8bf7c35116f6ab19f23386ead33e
---
 includes/specials/SpecialPrefixindex.php | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/includes/specials/SpecialPrefixindex.php b/includes/specials/SpecialPrefixindex.php
index 4548b634cd..16e6843c6d 100644
--- a/includes/specials/SpecialPrefixindex.php
+++ b/includes/specials/SpecialPrefixindex.php
@@ -36,6 +36,9 @@ class SpecialPrefixindex extends SpecialAllpages {
 
 	protected $hideRedirects = false;
 
+	// number of columns in output table
+	protected $columns = 3;
+
 	// Inherit $maxPerPage
 
 	function __construct() {
@@ -63,6 +66,7 @@ class SpecialPrefixindex extends SpecialAllpages {
 		$namespace = (int)$ns; // if no namespace given, use 0 (NS_MAIN).
 		$this->hideRedirects = $request->getBool( 'hideredirects', $this->hideRedirects );
 		$this->stripPrefix = $request->getBool( 'stripprefix', $this->stripPrefix );
+		$this->columns = $request->getInt( 'columns', $this->columns );
 
 		$namespaces = $wgContLang->getNamespaces();
 		$out->setPageTitle(
@@ -224,17 +228,17 @@ class SpecialPrefixindex extends SpecialAllpages {
 					} else {
 						$link = '[[' . htmlspecialchars( $s->page_title ) . ']]';
 					}
-					if ( $n % 3 == 0 ) {
+					if ( $n % $this->columns == 0 ) {
 						$out .= '<tr>';
 					}
 					$out .= "<td>$link</td>";
 					$n++;
-					if ( $n % 3 == 0 ) {
+					if ( $n % $this->columns == 0 ) {
 						$out .= '</tr>';
 					}
 				}
 
-				if ( $n % 3 != 0 ) {
+				if ( $n % $this->columns != 0 ) {
 					$out .= '</tr>';
 				}
 
@@ -265,6 +269,7 @@ class SpecialPrefixindex extends SpecialAllpages {
 					'prefix' => $prefix,
 					'hideredirects' => $this->hideRedirects,
 					'stripprefix' => $this->stripPrefix,
+					'columns' => $this->columns,
 				);
 
 				if ( $namespace || $prefix == '' ) {
-- 
2.20.1