Woocommerce Order cart array by cat and sub cat - wordpress

Question

Hi we are trying to sort the Woo Cart by Main product category and list under the products in that category. Like below:
Wheel Parts
spokes 12
Tyre's
Frame
Y Frame
X Frame
Z Frame
Seat
Seat 1
Seat 2
We have managed to get to display by cat order but it is not ordering them into Main Cat -> Sub Cat
We have the below code and trying to order cart array by cat and sub cat
add_action( 'woocommerce_cart_loaded_from_session', function() {
global $woocommerce;
$products_in_cart = array();
foreach ( $woocommerce->cart->cart_contents as $key => $item ) {
$terms = wp_get_post_terms($item['data']->id, 'product_cat' );
$products_in_cart[ $key ] = $terms[0]->name;
}
natsort( $products_in_cart );
$cart_contents = array();
foreach ( $products_in_cart as $cart_key => $product_title ) {
$cart_contents[ $cart_key ] = $woocommerce->cart->cart_contents[ $cart_key ];
}
$woocommerce->cart->cart_contents = $cart_contents;
}, 100 );
Any one have any ideas please?

Answer 1

Your code was correct but you had just natsort which returning 1 is causing the issue. You also need to sort categories by menu order. Please check the below code working perfectly.
add_action( 'woocommerce_cart_loaded_from_session', function() {
global $woocommerce;
$products_in_cart = array();
foreach ( $woocommerce->cart->cart_contents as $key => $item ) {
$terms = wp_get_post_terms($item['data']->id, 'product_cat' );
$products_in_cart[ $key ] = $terms[0]->term_id;
}
// $categories = get_terms( 'product_cat', 'orderby=menu_order&hide_empty=1' );
asort($products_in_cart);
$cat_array = array();
foreach ($products_in_cart as $key => $value) {
$cat_array[$key] =get_term_by('id', $value, 'product_cat');
}
$mai_cat = [];
$i=0;
foreach ($cat_array as $parent_key => $parent_value) {
if($parent_value->parent == 0)
{
$mai_cat[$parent_key] = $parent_value->term_id;
foreach ($cat_array as $parent_key_sub => $parent_value_sub) {
if($parent_value_sub->parent == $parent_value->term_id)
{
$mai_cat[$parent_key_sub] = $parent_value_sub->term_id;
}
}
}
}
$cart_contents = array();
foreach ( $mai_cat as $cart_key => $product_title ) {
$cart_contents[ $cart_key ] = $woocommerce->cart->cart_contents[ $cart_key ];
}
$woocommerce->cart->cart_contents = $cart_contents;
}, 100 );
Tested and works well