public Cashier(services.Database setDb) { db = setDb; }
public Cashbox(services.Database setDb) { db = setDb; }
public Client(services.Database setDb) { db = setDb; }
public Order(services.Database setDb) { db = setDb; }
public Discount(services.Database setDb) { db = setDb; }
public Product(services.Database setDb) { db = setDb; }
public Category(services.Database setDb) { db = setDb; }