// Gets parent and children
// getter for service
// links:
// docLink: http://sql2x.org/documentationLink/28672bb5-d65f-4daa-84f5-56d7bfad4b22
public CartProductContract CartProductCompleteGet(System.Guid cartProductId, System.Guid userId)
{
var cartProductContract =
new CartProductContract();
// open standard connection
using (var connection = new SqlConnection(ConfigurationManager.AppSettings["Conn"])) {
connection.Open();
try {
cartProductContract.CartProduct =
new CrudeCartProductService().FetchAll();
// save checksum for comparison on update
cartProductContract.ChecksumAfterGet = cartProductContract.Checksum();
} catch (Exception ex) {
throw new Exception("Failed to get Parent/Child CartProduct", ex);
}
}
return(cartProductContract);
}
// Updates parent, children are added or updated as needed
// updater for service
// links:
// docLink: http://sql2x.org/documentationLink/b1aacc4e-64a1-4147-8b95-3a76ab53cf0c
public System.Guid CartProductCompleteUpdate(System.Guid cartProductId, CartProductContract cartProductContract, System.Guid userId)
{
// check for differences since fetch
if (cartProductContract.ChecksumAfterGet.Equals(cartProductContract.Checksum()))
{
return(Guid.Empty);
}
// check for database differences since fetch
CartProductContract cartProductContractCurrent = CartProductCompleteGet(cartProductId, userId);
if (!cartProductContract.ChecksumAfterGet.Equals(cartProductContractCurrent.Checksum()))
{
throw new Exception("CartProductCompleteUpdate, data has changed since fetch");
}
// open standard connection
using (var connection = new SqlConnection(ConfigurationManager.AppSettings["Conn"])) {
connection.Open();
SqlTransaction transaction = connection.BeginTransaction();
try {
// update parent cart product
foreach (CrudeCartProductContract cartProduct in cartProductContract.CartProduct)
{
new CrudeCartProductService().Update(cartProduct, connection, transaction);
}
transaction.Commit();
} catch (Exception ex) {
transaction.Rollback();
throw new Exception("Failed to update Parent/Child CartProduct", ex);
}
}
return(Guid.Empty);
}