is_id()) { # EDZÉS ZÁROLÁS/FELOLDÁS $locked = $sql->single_variable('select tr_locked from training where tr_id =' . $this->get_id()); $sql->update_table('training', array( 'tr_locked' => ($locked?0:1) ), array( 'tr_id' => $this->get_id() ) ); log::register(($locked?'training_open':'training_close'), $this->get_id()); header('Location: /admin/presence/' . $this->get_id()); } else { # NEM LEHET } ?>