Method demo

examples/demo.php:3136–3147

()

class MixinGenericDemo
{
    public function demo(): void
    {
        $line = new ScaffoldingOrderLine();

        // @mixin Builder<TRelatedModel> on Relation resolves TModel → Product
        // through: BelongsTo @extends Relation<Product> → @mixin Builder<TRelatedModel>
        // → TRelatedModel=Product → Builder<Product> → firstOrFail(): TModel=Product
        $line->product()->firstOrFail()->getPrice();

        // Same resolution through find()
        $line->product()->find()->getSku();
    }
}