public function save( $post_id ) {

		if ( ! llms_verify_nonce( 'lifterlms_meta_nonce', 'lifterlms_save_data' ) ) {
			return;
		}

		$order = llms_get_post( $post_id );

		if ( isset( $_POST['_llms_order_status'] ) ) {

			$new_status = llms_filter_input_sanitize_string( INPUT_POST, '_llms_order_status' );
			$old_status = $order->get( 'status' );

			if ( $old_status !== $new_status ) {

				// Update the status.
				$order->set( 'status', $new_status );

			}
		}

		$editable_dates = array(
			'_llms_date_access_expires',
		);

		// Save recurring payments related dates if order's gateway supports recurring payments modification.
		if ( $order->supports_modify_recurring_payments() ) {
			/**
			 * Order is important -- if both trial and next payment are updated
			 * they should be saved in that order since next payment date
			 * is automatically recalculated by trial end date update.
			 */
			array_push( $editable_dates, '_llms_date_trial_end', '_llms_date_next_payment' );
		}

		foreach ( $editable_dates as $id => $key ) {

			if ( isset( $_POST[ $key ] ) ) {

				// The array of date, hour, minute that was submitted.
				$dates = llms_filter_input_sanitize_string( INPUT_POST, $key, array( FILTER_REQUIRE_ARRAY ) );

				// Format the array of data as a datetime string.
				$new_date = $dates['date'] . ' ' . sprintf( '%02d', $dates['hour'] ) . ':' . sprintf( '%02d', $dates['minute'] );

				// Get the existing saved date without seconds (in the same format as $new_date).
				$saved_date = date_i18n( 'Y-m-d H:i', strtotime( get_post_meta( $post_id, $key, true ) ) );

				// If the dates are not equal, update the date.
				if ( $new_date !== $saved_date ) {
					$order->set_date( str_replace( '_llms_date_', '', $key ), $new_date . ':00' );
				}
			}
		}

	}