Allow external URL and button text for external products

includes/admin/importers/class-wc-product-csv-importer-controller.php

@@ -427,6 +427,8 @@ class WC_Product_CSV_Importer_Controller {
 			'parent_id'          => __( 'Parent', 'woocommerce' ),
 			'upsell_ids'         => __( 'Upsells', 'woocommerce' ),
 			'cross_sell_ids'     => __( 'Cross-sells', 'woocommerce' ),
+			'external_url'       => __( 'External URL', 'woocommerce' ),
+			'button_text'        => __( 'Button text', 'woocommerce' ),
 		) ) );
 		$special_columns = array_map(
 			array( $this, 'sanitize_special_column_name_regex' ),
@@ -531,6 +533,13 @@ class WC_Product_CSV_Importer_Controller {
 			'parent_id'          => __( 'Parent', 'woocommerce' ),
 			'upsell_ids'         => __( 'Upsells', 'woocommerce' ),
 			'cross_sell_ids'     => __( 'Cross-sells', 'woocommerce' ),
+			'external'           => array(
+				'name'    => __( 'External product', 'woocommerce' ),
+				'options' => array(
+					'external_url' => __( 'External URL', 'woocommerce' ),
+					'button_text'  => __( 'Button text', 'woocommerce' ),
+				),
+			),
 			'downloads'          => array(
 				'name'    => __( 'Downloads', 'woocommerce' ),
 				'options' => array(

includes/import/abstract-wc-product-importer.php

@@ -499,7 +499,6 @@ abstract class WC_Product_Importer implements WC_Importer_Interface {
 		}
 
 		// Product url and button text for external products.
-		// @todo
 		if ( $product->is_type( 'external' ) ) {
 			if ( isset( $data['external_url'] ) ) {
 				$product->set_product_url( $data['external_url'] );

includes/import/class-wc-product-csv-importer.php

@@ -293,6 +293,7 @@ class WC_Product_CSV_Importer extends WC_Product_Importer {
 			'cross_sell_ids'    => array( $this, 'parse_relative_comma_field' ),
 			'download_limit'    => 'absint',
 			'download_expiry'   => 'absint',
+			'external_url'      => 'esc_url',
 		);
 
 		/**