Make the SQL query work with sqlite databases.

The fallback query does not use the CHAR_LENGTH function, but uses LENGTH.

LinkTitles.body.php

@@ -140,18 +140,34 @@
 			// by length from shortest to longest.
 			// Only titles from 'normal' pages (namespace uid = 0)
 			// are returned.
+			// Since the db may be sqlite, we need a try..catch structure
+			// because sqlite does not support the CHAR_LENGTH function.
 			$dbr = wfGetDB( DB_SLAVE );
-			$res = $dbr->select( 
-				'page', 
-				'page_title', 
-				array( 
-					'page_namespace = 0', 
-					'CHAR_LENGTH(page_title) >= ' . $wgLinkTitlesMinimumTitleLength,
-					'page_title NOT IN ' . $black_list,
-				), 
-				__METHOD__, 
-				array( 'ORDER BY' => 'CHAR_LENGTH(page_title) ' . $sort_order )
-			);
+			try {
+				$res = $dbr->select( 
+					'page', 
+					'page_title', 
+					array( 
+						'page_namespace = 0', 
+						'CHAR_LENGTH(page_title) >= ' . $wgLinkTitlesMinimumTitleLength,
+						'page_title NOT IN ' . $black_list,
+					), 
+					__METHOD__, 
+					array( 'ORDER BY' => 'CHAR_LENGTH(page_title) ' . $sort_order )
+				);
+			} catch (Exception $e) {
+				$res = $dbr->select( 
+					'page', 
+					'page_title', 
+					array( 
+						'page_namespace = 0', 
+						'LENGTH(page_title) >= ' . $wgLinkTitlesMinimumTitleLength,
+						'page_title NOT IN ' . $black_list,
+					), 
+					__METHOD__, 
+					array( 'ORDER BY' => 'LENGTH(page_title) ' . $sort_order )
+				);
+			}
 
 			// Iterate through the page titles
 			foreach( $res as $row ) {

LinkTitles.php

@@ -49,7 +49,7 @@
     'name'           => 'LinkTitles',
     'author'         => '[https://www.mediawiki.org/wiki/User:Bovender Daniel Kraus]', 
     'url'            => 'https://www.mediawiki.org/wiki/Extension:LinkTitles',
-    'version'        => '2.2.0',
+    'version'        => '2.2.1',
     'descriptionmsg' => 'linktitles-desc'
     );
 

NEWS

@@ -1,3 +1,6 @@
+LinkTitles 2.2.1: 2013-07-22
+* Make the extension work with sqlite databases.
+
 LinkTitles 2.2.0: 2013-04-16
 * Fix case-sensitive linking when $wgCapitalLinks is false.