errors

type APIApartment struct {
	Position uint
	Owner    APIPerson
}

type APIPerson struct {
	ID       int
	FullName string
}

type Converter interface {
	ToAPIApartment(source DBApartment) APIApartment
	ToDBApartment(source APIApartment) (DBApartment, error)
}

type DBApartment struct {
	Position uint
	Owner    DBPerson
}

type DBPerson struct {
	ID        int
	FirstName string
	LastName  string
}