add action to reset category order

backend.php

@@ -180,6 +180,31 @@
 						$_SESSION["uid"]);
 					return;
 				break;
+
+				case "catsortreset":
+					db_query($link, "UPDATE ttrss_feed_categories 
+							SET order_id = 0 WHERE owner_uid = " . $_SESSION["uid"]);
+					return;
+				break;
+
+				case "catsort":
+					$corder = db_escape_string($_GET["corder"]);
+
+					$cats = split(",", $corder);
+
+					for ($i = 0; $i < count($cats); $i++) {
+						$cat_id = $cats[$i];
+
+						if ($cat_id > 0) {
+							db_query($link, "UPDATE ttrss_feed_categories 
+								SET order_id = '$i' WHERE id = '$cat_id' AND
+								owner_uid = " . $_SESSION["uid"]);
+						}
+					}
+
+					return;
+				break;
+
 			}
 
 			outputFeedList($link, $tags);