code for bringing 'grouped products' back to woocommerce 2.0 format

For those who are struggling with the new price range format of woocommerce concerning grouped products (and variable products aswell (there is specific code available too)):

<?php
// Place in your theme’s functions.php file
// Revert grouped product prices to WooCommerce 2.0 format
add_filter( ‘woocommerce_grouped_price_html’, ‘wc_wc20_grouped_price_format’, 10, 2 );
function wc_wc20_grouped_price_format( $price, $product ) {
$tax_display_mode = get_option( ‘woocommerce_tax_display_shop’ );
$child_prices = array();

foreach ( $product->get_children() as $child_id ) {
$child_prices[] = get_post_meta( $child_id, ‘_price’, true );
}

$child_prices = array_unique( $child_prices );
$get_price_method = ‘get_price_’ . $tax_display_mode . ‘uding_tax’;

if ( ! empty( $child_prices ) ) {
$min_price = min( $child_prices );
$max_price = max( $child_prices );
} else {
$min_price = ”;
$max_price = ”;
}

if ( $min_price == $max_price ) {
$display_price = wc_price( $product->$get_price_method( 1, $min_price ) );
} else {
$from = wc_price( $product->$get_price_method( 1, $min_price ) );
$display_price = sprintf( __( ‘From: %1$s’, ‘woocommerce’ ), $from );
}
return $display_price;
}

regards
Pedro