How to use the withAvg ,withExists, methods?

Question

Laravel

Hello, I have a method that gets the average score, the presence of a discount on a product

$courses = Product::all()
                            ->withAvg('reviews', 'rating')
                            ->withExists('discount')                
                            ->get();

There is the following method, which gets all the purchased products of the current user.
$purchasedProducts = auth()->user()->courses;
But how to apply the withAvg and withExists methods to this method?
I will be grateful for advice.

Answer 1

Product::query() instead of Product::all().