// Save creates a new Customer on database, or updates if it already exists.
func (c *Customer) Save(db *sql.DB) error {
if c.Exists() {
err := utils.ExecSQL(db, customerUpdateSQL, c.ID, c.Name)
if err != nil {
return err
}
} else {
err := utils.ExecSQL(db, customerInsertSQL, c.ID, c.Name)
if err != nil {
return err
}
}
return nil
}
// Save creates a new OrderItem on database, or updates if it already exists.
func (o *OrderItem) Save(db *sql.DB) error {
if o.Exists() {
err := utils.ExecSQL(db, oitemUpdateSQL, o.ItemOrder.ID, o.ItemProduct.ID, o.Quantity, o.UnitPrice)
if err != nil {
return err
}
} else {
err := utils.ExecSQL(db, oitemInsertSQL, o.ItemOrder.ID, o.ItemProduct.ID, o.Quantity, o.UnitPrice)
if err != nil {
return err
}
}
return nil
}
// Save creates a new Product on database, or updates if it already exists.
func (p *Product) Save(db *sql.DB) error {
if p.Exists() {
err := utils.ExecSQL(db, productUpdateSQL, p.ID, p.Name, p.Description, p.Price)
if err != nil {
return err
}
} else {
err := utils.ExecSQL(db, productInsertSQL, p.ID, p.Name, p.Description, p.Price)
if err != nil {
return err
}
}
return nil
}
// Delete removes an OrderItem from database.
func (o *OrderItem) Delete(db *sql.DB) error {
err := utils.ExecSQL(db, oitemDeleteSQL, o.ItemOrder.ID, o.ItemProduct.ID)
if err != nil {
return err
}
return nil
}
// Delete removes an Order from database.
func (o *Order) Delete(db *sql.DB) error {
err := utils.ExecSQL(db, orderDeleteSQL, o.ID)
if err != nil {
return err
}
return nil
}
// Delete removes a Customer from database.
func (c *Customer) Delete(db *sql.DB) error {
err := utils.ExecSQL(db, customerDeleteSQL, c.ID)
if err != nil {
return err
}
return nil
}
// Delete removes a Product from database.
func (p *Product) Delete(db *sql.DB) error {
err := utils.ExecSQL(db, productDeleteSQL, p.ID)
if err != nil {
return err
}
return nil
}
// Save creates a new Order on database, or updates if it already exists.
// Note that the Customer must be already in the database.
// FIXME: Not using transactions!
func (o *Order) Save(db *sql.DB) error {
exists := o.Exists()
if !exists {
err := utils.ExecSQL(db, orderInsertSQL, o.ID, o.OrderCustomer.ID)
if err != nil {
return err
}
} else {
return fmt.Errorf("Order %s already exists.", o.ID)
}
for _, i := range o.Items {
err := i.Save(db)
if err != nil {
return err
}
}
return nil
}