Added two new functions CT#191

main/forum/forumfunction.inc.php

@@ -15,7 +15,7 @@
 * 	- new view option: nested view
 * 	- quoting a message
 *
-* 	@package dokeos.forum
+* 	@package chamilo.forum
 *
 * @todo several functions have to be moved to the itemmanager library
 * @todo displaying icons => display library
@@ -26,6 +26,7 @@ require_once api_get_path(LIBRARY_PATH).'mail.lib.inc.php';
 require_once api_get_path(LIBRARY_PATH).'text.lib.php';
 require_once api_get_path(LIBRARY_PATH).'usermanager.lib.php';
 require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/gradebook_functions.inc.php';
+
 get_notifications_of_user();
 
 /*
@@ -3969,3 +3970,38 @@ function get_thread_user_post_limit($course_db, $thread_id, $user_id, $limit=10)
 	}
 	return $post_list;
 }
+
+
+/**
+* This function builds an array of all the posts in a given thread where the key of the array is the post_id
+* It also adds an element children to the array which itself is an array that contains all the id's of the first-level children
+* @return an array containing all the information on the posts of a thread
+* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
+*/
+
+function calculate_children($rows) {
+	foreach($rows as $row) {
+		$rows_with_children[$row["post_id"]]=$row;
+		$rows_with_children[$row["post_parent_id"]]["children"][]=$row["post_id"];
+	}
+	
+	$rows=$rows_with_children;
+	$sorted_rows=array(0=>array());
+	_phorum_recursive_sort($rows, $sorted_rows);
+	unset($sorted_rows[0]);
+	return $sorted_rows;
+}
+
+function _phorum_recursive_sort($rows, &$threads, $seed=0, $indent=0) {
+	if($seed>0) {
+		$threads[$rows[$seed]["post_id"]]=$rows[$seed];
+		$threads[$rows[$seed]["post_id"]]["indent_cnt"]=$indent;
+		$indent++;
+	}
+
+	if(isset($rows[$seed]["children"])) {
+		foreach($rows[$seed]["children"] as $child) {
+			_phorum_recursive_sort($rows, $threads, $child, $indent);
+		}
+	}
+}