I have a collection of products. Each product is assigned to a category. I am using ->with(productFromCategory) to get a collection of all my products, as well as their category relationship.

How can I sort the collection first by Category, and then by products within those categories.

I can do the first part

$products = $productsCollection->sortBy('productFromCategories.category_name');

That returns my products sorted by categories.

But then the products are not sorted by product_name inside their respective categories.

Is there a way to sort the products relative to their categories now in that collection?