Create records with two related models using mixins

Question

I want to create order items using two related models, "Product" and "Order". Both order and product have many order items. An order item belongs to both product and order (one-to-many relation).

Right now, I am using the mixin from the order model to create an order item, giving it the "product_id". I can also use the mixin from the product model to create an order item, giving it the "order_id" like this:

  product.createOrderItem({
    order_id: order.id,
    quantity,
    amount: product?.price * quantity,
    currency: 'SAR'
  });

But can I use both of the relations(mixins from both models) to create order items? Here is what I have done so far:

  const order = await user?.createOrder({
    status: 'Processing',
    source: 'manual'
  });

  const orderItemsPromises = products?.map(async ({ productId, quantity }) => {
    const product = await Product.findByPk(productId);

    if (product) {
      return order.createOrderItem({
        local_product_id: product.id,
        quantity,
        amount: product?.price * quantity,
        currency: 'SAR'
      });
    }

    return null;
  });