eventespresso / event-espresso-core

		$this->_message_type = $active_message_types[$this->_mt_name];

		//verify we have the messenger and message type objects

		if ( ! $this->_messenger instanceof EE_messenger ) {

			throw new EE_Error( sprintf( __('The _messenger property must be an instance of EE_messenger by this point.  It isn\'t. Something has gone wrong. Here is the value it holds:<br /> %s', 'event_espresso' ), print_r( $this->_messenger, TRUE ) ) );

		}

		if ( ! $this->_message_type instanceof EE_message_type ) {

			throw new EE_Error( sprintf( __('The _message_type property must be an instance of EE_message_type by this point.  It isn\'t. Something has gone wrong. Here is the value it holds:<br /> %s', 'event_espresso' ), print_r( $this->_message_type, TRUE ) ) );

			throw new EE_Error( sprintf( __('The _messenger property must be an instance of EE_messenger by this point.  It isn\'t. Something has gone wrong. Here is the value it holds:<br /> %s', 'event_espresso' ), print_r( $this->_messenger, TRUE ) ) );

		}

		if ( ! $this->_message_type instanceof EE_message_type ) {

			throw new EE_Error( sprintf( __('The _message_type property must be an instance of EE_message_type by this point.  It isn\'t. Something has gone wrong. Here is the value it holds:<br /> %s', 'event_espresso' ), print_r( $this->_message_type, TRUE ) ) );

		}

		$this->_fields = $this->_messenger->get_template_fields();

	 */

	public function handle_ipn($req_data,$transaction){

		$transaction = EEM_Transaction::instance()->ensure_is_obj($transaction);

		if( ! $this->_gateway instanceof EE_Offsite_Gateway){

			throw new EE_Error(sprintf(__("Could not handle IPN because '%s' is not an offsite gateway", "event_espresso"), print_r( $this->_gateway, TRUE )));

		}

		$payment = $this->_gateway->handle_payment_update( $req_data, $transaction );

		return $payment;

	}