on user delete leaveAllGroups and remove from pending invited sets as well

src/groups/membership.js

@@ -163,11 +163,14 @@ module.exports = function(Groups) {
 	};
 
 	Groups.leaveAllGroups = function(uid, callback) {
-		db.getSortedSetRange('groups:createtime', 0, -1, function(err, groups) {
+		async.waterfall([
-			if (err) {
+			function(next) {
-				return callback(err);
+				db.getSortedSetRange('groups:createtime', 0, -1, next);
-			}
+			},
+			function(groups, next) {
 				async.each(groups, function(groupName, next) {
+					async.parallel([
+						function(next) {
 							Groups.isMember(uid, groupName, function(err, isMember) {
 								if (!err && isMember) {
 									Groups.leave(groupName, uid, next);
@@ -175,8 +178,14 @@ module.exports = function(Groups) {
 									next();
 								}
 							});
-			}, callback);
+						},
-		});
+						function(next) {
+							Groups.rejectMembership(groupName, uid, next);
+						}
+					], next);
+				}, next);
+			}
+		], callback);
 	};
 
 	Groups.getMembers = function(groupName, start, stop, callback) {