Query scopes

use RoundlyConsulting\Credits\Models\Credit;

Credit::query()->grants()->get();                               // amount > 0
Credit::query()->deductions()->get();                           // amount < 0
Credit::query()->upTo(now()->subWeek())->get();                 // created_at <= $at
Credit::query()->forCreditable($user)->get();                   // rows owned by $user
Credit::query()->bucket('promotional')->get();                  // rows in a named bucket
Credit::query()->buckets(['promotional', 'purchased'])->get();  // rows in any listed bucket

// Scopes compose — and work on the relation too.
Credit::query()->forCreditable($user)->bucket('promotional')->grants()->sum('amount');

$user->credits()->deductions()->upTo(now()->subMonth())->latest()->get();