eventespresso / event-espresso-core

	static public function convert_data_from_persistent_storage( $data ) {

		$registration = null;

		//$data['Registration'] could be either an ID (back compat) or a registration object (prepped using old system).

		if ( isset( $data[ 'Registration' ] ) ) {

			$registration = $data[ 'Registration' ] instanceof EE_Registration

				? $data[ 'Registration' ]

				: EEM_Registration::instance()->get_one_by_ID( $data[ 'Registration' ] );

		}

		$prepped_data = array(

			0 => $registration,

			1 => isset( $data['filter'] ) ? $data['filter'] : null

            $this->cache_storage->delete(EE_Session::session_id_prefix . $this->_sid);

            throw new InvalidSessionDataException($msg);

        }

        if (isset($session_data['transaction']) && absint($session_data['transaction']) !== 0) {

            $session_data['transaction'] = EEM_Transaction::instance()->get_one_by_ID(

                $session_data['transaction']

            );

        }

        return $session_data;

    }