Use regular category with custom post types

Question

I'm using woocommerce that uses costum posts with hits own productcategory taxonomy. Now I'm using an other plugin (minimu) that selects post to display based on the normaly wordpress category. Seeing as my custom post types dont below to a regular category it displays nothing... Now I want to make it so that I can assign a productcategory as well as a normal category to each post.

How would I have to modify this? I guess adding something to the custom post declaration of woocommerce? But no idea how and what?

EDIT found this code, that makes it able to assign regular categories to custom type's but now my importer doesnt assign them, but I think ill be able to fix this.

 add_action( 'init', 'wpse6098_init', 100 ); // 100 so the post type has been registered
function wpse6098_init()
{
    register_taxonomy_for_object_type( 'category', 'product' );
}

This post may be deleted, tried to do it myself

Answer 1

found this code, that makes it able to assign regular categories to custom type's but now my importer doesnt assign them, but I think ill be able to fix this.

<?php
add_action( 'init', 'wpse6098_init', 100 ); // 100 so the post type has been registered
function wpse6098_init()
{
    register_taxonomy_for_object_type( 'category', 'product' );
}

This post may be deleted, tried to do it myself