public void DeleteProduct(Product product)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
if (connection.State != ConnectionState.Open)
connection.Open();
// delete record from table
DeleteProduct(connection, product);
}
}
private void btnSave_Click(object sender, System.Windows.RoutedEventArgs e)
{
try
{
if (productBackup == null)
{
productBackup = data.NewProduct(product.Name, product.Price, product.TimeConsuming);
product.Id = productBackup.Id;
}
else
{
data.UpdateProduct(product, productBackup);
productBackup.Name = product.Name;
productBackup.Price = product.Price;
productBackup.TimeConsuming = product.TimeConsuming;
productBackup.Active = product.Active;
}
}
catch { }
}
private void DeleteProduct(OracleConnection connection, Product product)
{
OracleCommand cmd = connection.CreateCommand();
cmd.CommandText = "delete from tis_vyrobek where vyrobek_id = :1";
cmd.Parameters.Add(GetNumber(":1", product.Id));
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
cmd.Dispose();
}
public void UpdateProduct(Product newProduct, Product oldProduct)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
if (connection.State != ConnectionState.Open)
connection.Open();
// update record in table
UpdateProduct(connection, newProduct, oldProduct);
}
}
public Item NewItem(Order order, Product product, int count)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
if (connection.State != ConnectionState.Open)
connection.Open();
// insert record to table
InsertItem(connection, order, product, count);
}
return new Item
{
OrderId = order.Id,
Order = order,
ProductId = product.Id,
Product = product,
Count = count
};
}
private void UpdateProduct(OracleConnection connection, Product newProduct, Product oldProduct)
{
if (newProduct.Id != oldProduct.Id) // probably different products - wrong input
return;
OracleCommand cmd = connection.CreateCommand();
cmd.CommandText = "update tis_vyrobek set ";
cmd.CommandType = CommandType.Text;
int paramIdx = 1;
paramIdx = AddUpdateField(cmd, "nazev", paramIdx, CheckForInjection(newProduct.Name), oldProduct.Name);
paramIdx = AddUpdateField(cmd, "cena", paramIdx, newProduct.Price, oldProduct.Price);
paramIdx = AddUpdateField(cmd, "narocnost", paramIdx, newProduct.TimeConsuming, oldProduct.TimeConsuming);
paramIdx = AddUpdateField(cmd, "aktivni", paramIdx, newProduct.Active, oldProduct.Active);
if (paramIdx > 1)
{
cmd.CommandText += " where vyrobek_id = :" + paramIdx.ToString();
cmd.Parameters.Add(GetNumber(":" + paramIdx.ToString(), newProduct.Id));
cmd.ExecuteNonQuery();
}
cmd.Dispose();
}
private void InsertItem(OracleConnection connection, Order order, Product product, int count)
{
OracleCommand cmd = connection.CreateCommand();
cmd.CommandText = "insert into tis_polozka (zakazka_id,vyrobek_id,pocet) values(:1,:2,:3)";
cmd.Parameters.Add(GetNumber(":1", order.Id));
cmd.Parameters.Add(GetNumber(":2", product.Id));
cmd.Parameters.Add(GetNumber(":3", count));
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
cmd.Dispose();
}
private void EditProduct(Product editProduct)
{
product = new Product();
if (editProduct != null)
{
product.Id = editProduct.Id;
product.Name = editProduct.Name;
product.Price = editProduct.Price;
product.TimeConsuming = editProduct.TimeConsuming;
product.Active = editProduct.Active;
}
gridEdit.DataContext = product;
}
