How disable local pickup, when cart weight = 0 in WordPress - wordpress

Question

pls how can I disable local pickup depending on a cart total weight? I want to disable possibility for local pickup when the cart total weight == 0. I used this snippet found elsewhere and modified, but it is not working and the local pickup is still offered
add_filter( 'woocommerce_package_rates', 'bbloomer_woocommerce_tiered_shipping', 9999, 2 );
function bbloomer_woocommerce_tiered_shipping( $rates, $package ) {
if ( WC()->cart->get_cart_contents_weight() == 0 ) {
unset( $rates['local_pickup'] );
unset( $rates['local_delivery'] );
}
return $rates;
}
What am I doing wrong please?
Actually my code mentioned above is working. I did not realized two things:
ID of my local_pickup was wrong, I did not explore the page to find out, that the correct variable name is 'local_pickup:13' (code updated)
To see changes on the web I always have to open the site in anonymous window. Even Ctrl+F5, Ctrl+Shift+R in Chrome does not help.

Answer 1

You can count total weight by WC()->cart->cart_contents loop.
try this code
add_filter( 'woocommerce_package_rates', 'hide_shipping_based_on_weight', 10, 2 );
function hide_shipping_based_on_weight( $rates, $package ) {
$cart_total_weight = 0;
$shipping_id = 'local_pickup'; // your shipping id
// Calculate cart weight total.
foreach( WC()->cart->cart_contents as $key => $value ){
$cart_total_weight += $value['data']->weight * $value['quantity'];
}
// check cart total
if( $cart_total_weight <= 0 ){
unset( $rates[ $shipping_id ] );
}
return $rates;
}