/// <summary>
/// Inserts a PetShop.Business.Inventory object into the datasource using a transaction.
/// </summary>
/// <param name="transactionManager"><see cref="TransactionManager"/> object</param>
/// <param name="entity">PetShop.Business.Inventory object to insert.</param>
/// <remarks>
/// After inserting into the datasource, the PetShop.Business.Inventory object will be updated
/// to refelect any changes made by the datasource. (ie: identity or computed columns)
/// </remarks>
/// <returns>Returns true if operation is successful.</returns>
/// <exception cref="System.Exception">The command could not be executed.</exception>
/// <exception cref="System.Data.DataException">The <paramref name="transactionManager"/> is not open.</exception>
/// <exception cref="System.Data.Common.DbException">The command could not be executed.</exception>
public override bool Insert(TransactionManager transactionManager, PetShop.Business.Inventory entity)
{
SqlDatabase database = new SqlDatabase(this._connectionString);
DbCommand commandWrapper = StoredProcedureProvider.GetCommandWrapper(database, "dbo.Inventory_Insert", _useStoredProcedure);
database.AddInParameter(commandWrapper, "@ItemId", DbType.AnsiString, entity.ItemId);
database.AddInParameter(commandWrapper, "@Qty", DbType.Int32, entity.Qty);
int results = 0;
//Provider Data Requesting Command Event
OnDataRequesting(new CommandEventArgs(commandWrapper, "Insert", entity));
if (transactionManager != null)
{
results = Utility.ExecuteNonQuery(transactionManager, commandWrapper);
}
else
{
results = Utility.ExecuteNonQuery(database, commandWrapper);
}
entity.OriginalItemId = entity.ItemId;
entity.AcceptChanges();
//Provider Data Requested Command Event
OnDataRequested(new CommandEventArgs(commandWrapper, "Insert", entity));
return(Convert.ToBoolean(results));
}
protected override void DataPortal_Update()
{
bool cancel = false;
OnUpdating(ref cancel);
if (cancel) return;
if(OriginalItemId != ItemId)
{
// Insert new child.
Inventory item = new Inventory {ItemId = ItemId, Qty = Qty};
item = item.Save();
// Mark editable child lists as dirty. This code may need to be updated to one-to-one relationships.
// Create a new connection.
using (var connection = new SqlConnection(ADOHelper.ConnectionString))
{
connection.Open();
FieldManager.UpdateChildren(this, connection);
}
// Delete the old.
var criteria = new InventoryCriteria {ItemId = OriginalItemId};
DataPortal_Delete(criteria);
// Mark the original as the new one.
OriginalItemId = ItemId;
OnUpdated();
return;
}
const string commandText = "UPDATE [dbo].[Inventory] SET [ItemId] = @p_ItemId, [Qty] = @p_Qty WHERE [ItemId] = @p_OriginalItemId; SELECT [ItemId] FROM [dbo].[Inventory] WHERE [ItemId] = @p_OriginalItemId";
using (var connection = new SqlConnection(ADOHelper.ConnectionString))
{
connection.Open();
using(var command = new SqlCommand(commandText, connection))
{
command.Parameters.AddWithValue("@p_OriginalItemId", this.OriginalItemId);
command.Parameters.AddWithValue("@p_ItemId", this.ItemId);
command.Parameters.AddWithValue("@p_Qty", this.Qty);
//result: The number of rows changed, inserted, or deleted. -1 for select statements; 0 if no rows were affected, or the statement failed.
int result = command.ExecuteNonQuery();
if (result == 0)
throw new DBConcurrencyException("The entity is out of date on the client. Please update the entity and try again. This could also be thrown if the sql statement failed to execute.");
LoadProperty(_originalItemIdProperty, this.ItemId);
}
}
OnUpdated();
}