eventespresso / event-espresso-core

					$this->cart->get_grand_total()

				);

			}

			if ( $grand_total instanceof EE_Line_Item ) {

				$this->cart = EE_Cart::instance( $grand_total );

			} else {

				EE_Error::add_error( __( 'A valid Cart was not found when attempting to update the model entity mapper.', 'event_espresso' ), __FILE__, __FUNCTION__, __LINE__ );

				return false;

			}

		}

		return TRUE;

	}

	public function save_data_rows_to_db( $csv_data_array, $export_from_site_a_to_b, $old_db_to_new_db_mapping ) {

		foreach ( $csv_data_array as $model_name_in_csv_data => $model_data_from_import ) {

			//now check that assumption was correct. If

			if ( EE_Registry::instance()->is_model_name($model_name_in_csv_data)) {

				$model_name = $model_name_in_csv_data;

			}else {

				// no table info in the array and no table name passed to the function?? FAIL

				EE_Error::add_error( __('No table information was specified and/or found, therefore the import could not be completed','event_espresso'), __FILE__, __FUNCTION__, __LINE__ );

				return FALSE;

			}

			/* @var $model EEM_Base */

			$model = EE_Registry::instance()->load_model($model_name);

			) {

				//update Config with post ID

				$EE_Core_Config->{$critical_page[ 'id' ]} = $critical_page['post']->ID;

				if ( ! EE_Config::instance()->update_espresso_config( FALSE, FALSE ) ) {

					$msg = __( 'The Event Espresso critical page configuration settings could not be updated.', 'event_espresso' );

					EE_Error::add_error( $msg, __FILE__, __FUNCTION__, __LINE__ );

				}

			}

			$critical_page_problem =