entities

type CreditCard struct {
	gorm.Model
	Number     string
	CustomerID uint
}

type Customer struct {
	gorm.Model
	Name        string
	CreditCards []CreditCard
}

type Id struct {
	Id uint
}

type Order struct {
	ID           bson.ObjectId `bson:"_id"`
	CreatedAt    util.Time
	CustomerName string
	OrderItems   []OrderItem
}

type OrderItem struct {
	Type string
	Size string
}