Add Product and Country column to Easy Digital Downloads

edd-order-columns.php

<?php
/**
 * Add more columns to the order table
 *
 * - Products
 * - Country
 */
/**
 * Add table columns
 *
 * @param $columns
 *
 * @return string[]
 */
function advads_add_edd_order_table_columns( $columns ){
	$columns['products'] = __( 'Products', 'easy-digital-report' );
	$columns['country'] = __( 'Country', 'easy-digital-report' );
	return $columns;
}
add_filter( 'edd_payments_table_columns', 'advads_add_edd_order_table_columns' );

/**
 * Fill table column content
 *
 * @param $value
 * @param $ID
 * @param $column_name
 *
 * @return mixed|string|void
 */
function advads_add_edd_order_table_column_content( $value, $ID, $column_name ){
	switch( $column_name ){
		case 'products':
			return advadsd_edd_prepare_products( edd_get_payment_meta_cart_details( $ID ) );
		case 'country':
			$user_info = edd_get_payment_meta_user_info( $ID );
			return isset( $user_info['address']['country'] ) ? __( advads_edd_get_country_name( $user_info['address']['country'] ), 'easy-digital-downloads' ) : '[not given]';
	}
	return $value;
}
add_filter( 'edd_payments_table_column', 'advads_add_edd_order_table_column_content', 10, 3 );

/**
 * Gather product information to display them on the Payment history list
 *
 * @param $cart_details
 * @return string
 */
function advadsd_edd_prepare_products( $cart_details ){
	$products = "";
	foreach ( $cart_details as $product ){
		if( isset( $product['item_number']['options']['is_renewal'] ) AND $product['item_number']['options']['is_renewal'] == 1 ){
			$products .= __("Renewal: ", 'easy-digital-report') . $product['name'] . PHP_EOL;
		} else if ( isset( $product['item_number']['options']['is_upgrade'] ) AND $product['item_number']['options']['is_upgrade'] == 1 ){
			$products .= __("Upgrade: ", 'easy-digital-report') . $product['name'] . PHP_EOL;
		} else {
			$products .= $product['name'] . "\r\n";
			if( ! empty( $product['item_number']['options']['price_id'] ) ){
				$products .= ' (' . edd_get_price_option_name( $product['id'], $product['item_number']['options']['price_id'] ) . ")\r\n";
			}
		}
		// show, if this item is not recurring
	}
	return $products;
}

/**
 * Convert country codes to their english equivalent
 *
 * @return void
 */
function advads_edd_get_country_name( $code ){
	$names = edd_get_country_list();
	return $names[$code];
}