eloquent - Laravel Where Count > N

Question

I have 2 models in my app:

1. Customer.php

2. Car.php

Now I would like to run a query that returns all customers that have less than 2 cars. Where 2 is a number that can be changed by the user.

I have tried this but it didn't work, it just returns all customer records:

$customers = Customer::whereHas("cars", function($query) {
    $query->selectRaw("count(*) < ?", [2]);
})
->get();

Edit: The two models are linked in a pivot table, meaning A customer can have more than 1 car and a Car can belong to more than 1 customer.

Answer 1

Use this:

$customers = Customer::withCount('cars')
    ->having('cars_count', '<', 2)
    ->get();