[FEATURE] Add system categories as tags to indexed pages. That makes …

…it possible to create filters for pages based on system categories.

ChangeLog

@@ -4,6 +4,7 @@ master
 [!!!] In order to restrict the filter options in the backend to those on a certain page, please use the page TSconfig option tx_kesearch.filterStorage = 123 (formerly: kesearch.filterStorage = 123). The syntax has been adopted to the official guidelines.
 [BUGFIX]  Fix fetching the right page uid in class user_filterlist, follow up to https://github.com/teaminmedias-pluswerk/ke_search/pull/9.
 [TASK]    cleanup user_filterlist
+[FEATURE] Add system categories as tags to indexed pages. That makes it possible to create filters for pages based on system categories.
 
 Version 2.1.0, March 2016
 [!!!] This version changes the database structure!

Classes/indexer/types/class.tx_kesearch_indexer_types_page.php

@@ -361,9 +361,12 @@ public function getPageContent($uid) {
 		// element indexer if you need that feature!
 		$pageAccessRestrictions = $this->getInheritedAccessRestrictions($uid);
 
-		// get Tags for current page
+		// add ke_search tags current page
 		$tags = $this->pageRecords[intval($uid)]['tags'];
 
+		// add system categories as tags
+		tx_kesearch_helper::makeSystemCategoryTags($tags, $uid, $table);
+
 		// Compile content for this page from individual content elements with
 		// respect to the language.
 		// While doing so, fetch also content from attached files and write