public ActionResult Join(string roomName, string username)
{
RoomModel room = roomDal.GetChatRoom(roomName);
if (room != null)
{
roomDal.LeaveChatRooms(username);
roomDal.JoinChatRoom(room.Id, username);
return(RedirectToAction("View", "Rooms", new { id = room.Id }));
}
return(RedirectToAction("Index", "Rooms"));
}