/// <summary>
///
/// </summary>
/// <param name="parameter"></param>
/// <returns></returns>
public IPersisterResult UpdateFunction(UpdatingEventArgs parameter)
{
lock (customDAO)
{
object objectToUpdate = customDAO.FindBy(parameter.SourceType, parameter.Key, LockMode.Upgrade);
Dictionary<string, object> dic = parameter.Values.Keys.Cast<object>().ToDictionary(current => current.ToString(), current => parameter.Values[current]);
ITransactionProvider tr = customDAO.GetTransactionProvider();
try
{
tr.BeginTransaction("UpdateFunction", IsolationLevel.ReadCommitted);
var metadata = customDAO.GetPersistentClassInfo(objectToUpdate.GetType());
metadata.SetPropertyValues(objectToUpdate, dic, EntityMode.Poco);
tr.CommitTransaction();
return new PersisterResult(parameter.SourceType, 1);
}
catch (Exception ex)
{
tr.RollbackTransaction(ex);
return new PersisterResult(parameter.SourceType, new ExecutionQueryException("Error on executing the update function.", "UpdateFunction", ex));
}
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void CustomDataSource_Updating(object sender, UpdatingEventArgs e)
{
}
/// <summary>
///
/// </summary>
/// <param name="keys"></param>
/// <param name="values"></param>
/// <param name="oldValues"></param>
/// <returns></returns>
protected override int ExecuteUpdate(IDictionary keys, IDictionary values, IDictionary oldValues)
{
if (owner.UpdateFunction == null)
throw new DelegateNotFoundException("UpdateFunction", "The update function doesn't implemented.");
if (owner.IdentifierFunction == null)
throw new DelegateNotFoundException("IdentifierFunction", "The identifier function doesn't implemented.");
var eventArg = new UpdatingEventArgs(owner.SourceType, owner.IdentifierFunction.Invoke(keys), values, oldValues);
owner.OnUpdating(eventArg);
if (eventArg.Cancel)
return 0;
var updateActionEvent = new ActionEventArgs<UpdatingEventArgs, IPersisterResult>(eventArg, owner.UpdateFunction);
var result = updateActionEvent.Execute();
if (result.QueryException != null)
{
owner.OnExecutionQueryError(new QueryResultEventArgs(result));
return -1;
}
owner.OnUpdated(EventArgs.Empty);
OnDataSourceViewChanged(EventArgs.Empty);
return 1;
}
internal void OnUpdating(UpdatingEventArgs e)
{
if (Updating != null) Updating(this, e);
}