Hello everyone, I am trying to join multiple tables in my controller.php but i am getting errors. I managed to join two tables into an Array like that;

     $currentValues = DashboardMapItem::where('system_id', $system_id)->orderby('datetime', 'DESC')
                  ->select()->join('device_data_current', function($join){
                                    $join->on('device_data_current.id', '=', 'dashboard_map_items.device_id');
                                    $join->on('device_data_current.command', '=', 'dashboard_map_items.command');
                  })
                  ->get();

but I cannot add the third table (devices) to the code, can anyone help me?

Thanks,