Add Size Attribute Column to WooCommerce Custom Exporter

gistfile1.txt

// Ref: https://github.com/skyverge/wc-plugins-snippets/blob/master/woocommerce-customer-order-csv-export/add-product-attributes-to-one-row-per-item-order-export.php
/**
 * Adds size attribute to the one row per item order export
 * CANNOT be used with non-one row per item formats
 */
/**
 * Add a 'size' column to the export file
 *
 * @param array $headers
 * @return array
 */
/**
 * Adds size attribute to the one row per item order export
 * CANNOT be used with non-one row per item formats
 */
/**
 * Add a 'size' column to the export file
 *
 * @param array $headers
 * @return array
 */
function cws_sv_wc_csv_export_add_product_attributes_column( $headers ) {
	$new_headers = array();
	foreach ( $headers as $key => $header ) {
		$new_headers[ $key ] = $header;
		if ( 'item_name' === $key )  {
			$new_headers['size'] = 'size';
		}
	}
	return $new_headers;
}
add_filter( 'wc_customer_order_csv_export_order_headers', 'cws_sv_wc_csv_export_add_product_attributes_column' );
/**
 * Add the WC_Product object to the line item data for use by the one row per item
 * filter below
 *
 * @param array $line_item
 * @param array $_ item data, unused
 * @param \WC_Product $product
 * @return array
 */
function cws_sv_wc_csv_export_add_product_to_order_line_item( $line_item, $_, $product ) {
	$line_item['product'] = $product;
	return $line_item;
}
add_filter( 'wc_customer_order_csv_export_order_line_item', 'cws_sv_wc_csv_export_add_product_to_order_line_item', 10, 3 );
/**
 * Add the product attributes in the format:
 *
 * attribute name=attribute value 1, attribute value 2, etc.
 *
 * @param array $order_data
 * @param array $item
 * @return array
 */
function cws_sv_wc_csv_export_add_product_attributes( $order_data, $item ) {
	$order_data['size'] = '';
	$count                            = 1;
	if ( ! is_object( $item['product'] ) ) {
		return $order_data;
	}
	foreach ( array_keys( $item['product']->get_attributes() ) as $attribute ) {
		// Use next line for format: attribute value 1, attribute value 2, etc.
		$order_data['size'] .= $item['product']->get_attribute( $attribute );

		// uncomment this line for format: attribute name=attribute value 1, attribute value 2, etc.
		// $order_data['product_attributes'] .= str_replace( 'pa_', '', $attribute ) . '=' . $item['product']->get_attribute( $attribute );
		
		// add a semicolon divider if there are multiple attributes and it's not the last one
		if ( count( $item['product']->get_attributes() ) > 1 && $count !== count( $item['product']->get_attributes() ) ) {
			$order_data['size'] .= ';';
		}
		$count++;
	}
	return $order_data;
}
add_filter( 'wc_customer_order_csv_export_order_row_one_row_per_item', 'cws_sv_wc_csv_export_add_product_attributes', 10, 2 );
function cws_sv_wc_csv_export_add_product_attributes_column( $headers ) {
	$new_headers = array();
	foreach ( $headers as $key => $header ) {
		$new_headers[ $key ] = $header;
		if ( 'item_name' === $key )  {
			$new_headers['size'] = 'size';
		}
	}
	return $new_headers;
}
add_filter( 'wc_customer_order_csv_export_order_headers', 'cws_sv_wc_csv_export_add_product_attributes_column' );
/**
 * Add the WC_Product object to the line item data for use by the one row per item
 * filter below
 *
 * @param array $line_item
 * @param array $_ item data, unused
 * @param \WC_Product $product
 * @return array
 */
function cws_sv_wc_csv_export_add_product_to_order_line_item( $line_item, $_, $product ) {
	$line_item['product'] = $product;
	return $line_item;
}
add_filter( 'wc_customer_order_csv_export_order_line_item', 'cws_sv_wc_csv_export_add_product_to_order_line_item', 10, 3 );
/**
 * Add the product attributes in the format:
 *
 * attribute name=attribute value 1, attribute value 2, etc.
 *
 * @param array $order_data
 * @param array $item
 * @return array
 */
function cws_sv_wc_csv_export_add_product_attributes( $order_data, $item ) {
	$order_data['size'] = '';
	$count                            = 1;
	if ( ! is_object( $item['product'] ) ) {
		return $order_data;
	}
	foreach ( array_keys( $item['product']->get_attributes() ) as $attribute ) {
		$order_data['size'] .= $item['product']->get_attribute( $attribute );
		// $order_data['product_attributes'] .= str_replace( 'pa_', '', $attribute ) . '=' . $item['product']->get_attribute( $attribute );
		// add a semicolon divider if there are multiple attributes and it's not the last one
		if ( count( $item['product']->get_attributes() ) > 1 && $count !== count( $item['product']->get_attributes() ) ) {
			$order_data['size'] .= ';';
		}
		$count++;
	}
	return $order_data;
}
add_filter( 'wc_customer_order_csv_export_order_row_one_row_per_item', 'cws_sv_wc_csv_export_add_product_attributes', 10, 2 );