I've got a custom taxonomy "sector" associated to WooCommerce products; of course each products are assigned to the default Product categories ("product_cat") as well. What I'd like to achieve is to show in a custom sidebar a list of "Product category" link/name, the product of which are assigned to the selected "sector".

Eg.: say that my data ar organized like this (hope this make sense), with three products associated to a various "Product categories" AND to a particular sector:

Product 1

• product_cat: category_1
• sector: sector_1

Product 2

• product_cat: category_2
• sector: sector_1

Product 3

• product_cat: category_3
• sector: sector_1

Now, when I'm in the "sector_1" archive page, in the sidebar I'd like to show the following list:

• category_1
• category_2
• category_3

Is this possible? Maybe using tax_query or other methods?

I've got a custom taxonomy "sector" associated to posts; posts are assigned to the default categories as well. What I'd like to achieve is to show in a custom sidebar a list of "categories" link/name, the post of which are assigned to the selected "sector".

Eg.: say that my data are organized like this (hope this make sense), with three posts associated to a various categories AND to a particular sector:

Post 1

• category: category_1
• sector: sector_1

Post 2

• category: category_2
• sector: sector_1

Post 3

• category: category_3
• sector: sector_1

Now, when I'm in the "sector_1" archive page, in the sidebar I'd like to show the following list:

• category_1
• category_2
• category_3

Is this possible? Maybe using tax_query or other methods?