void connector_BeforeOutput(object sender, RenderEventArgs e)
{
if (this.Connector.Request.RequestType == DataRequestType.Edit)
{
//create new action
DataAction customAction = new DataAction("sayHello", "", null, null, null, null);
customAction.Details = "Hello, World!";
//add it to actions collection and send to the client
this.Connector.Request.DataActions.Add(customAction);
}
}
/// <summary>
/// Executes Insert DataAction
/// </summary>
/// <param name="Action">DataAction to execute</param>
private void DoInsertAction(DataAction Action)
{
// BEFORE INSERT
if (this.BeforeInsert != null)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Calling BeforeInsert event(Action = [" + Action.ToString() + "]");
#endif
#endregion
this.BeforeInsert(this, new DataActionProcessingEventArgs(Action));
}
this.AssertHasAccess(AccessRights.Insert);
// INSERT ITSELF
if (!Action.Completed)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Executing insert action.");
#endif
#endregion
if (this.CustomSQLs.ContainsKey(CustomSQLType.Insert))
{
string sql = this.ParseSQLTemplate(this.CustomSQLs[CustomSQLType.Insert], Action.Data, Action.PrimaryKeyField, Action.PrimaryKeyValue);
Action.PostoperationalPrimaryKeyValue = this.Adapter.ExecuteScalar(sql);
}
else
Action.PostoperationalPrimaryKeyValue = this.Adapter.ExecuteInsertQuery(Action.TableName, Action.Data, Action.PrimaryKeyField, Action.PrimaryKeyValue);
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Action completed. PostoperationalPrimaryKeyValue is " + Convert.ToString(Action.PostoperationalPrimaryKeyValue ?? "null") + ".");
#endif
#endregion
}
#region LOG ENTRY
#if !NO_LOG
else
Log.WriteLine(this, "Skipping insert action, because it's marked as completed.");
#endif
#endregion
// AFTER INSERT
if (this.Inserted != null)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Calling Inserted event. Action =[" + Action.ToString() + "]");
#endif
#endregion
this.Inserted(this, new DataActionProcessingEventArgs(Action));
}
}
/// <summary>
/// Executes Delete DataAction
/// </summary>
/// <param name="Action">DataAction to execute</param>
private void DoDeleteAction(DataAction Action)
{
// BEFORE DELETE
if (this.BeforeDelete != null)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Calling BeforeDelete event(Action = [" + Action.ToString() + "]");
#endif
#endregion
this.BeforeDelete(this, new DataActionProcessingEventArgs(Action));
}
this.AssertHasAccess(AccessRights.Delete);
// DELETE ITSELF
if (!Action.Completed)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Executing delete action.");
#endif
#endregion
if (this.CustomSQLs.ContainsKey(CustomSQLType.Delete))
{
string sql = this.ParseSQLTemplate(this.CustomSQLs[CustomSQLType.Delete], Action.Data, Action.PrimaryKeyField, Action.PrimaryKeyValue);
Action.PostoperationalPrimaryKeyValue = this.Adapter.ExecuteScalar(sql);
}
else
this.Adapter.ExecuteDeleteQuery(Action.TableName, Action.PrimaryKeyField, Action.PrimaryKeyValue);
}
#region LOG ENTRY
#if !NO_LOG
else
Log.WriteLine(this, "Skipping delete action, because it's marked as completed.");
#endif
#endregion
// DELETED
if (this.Deleted != null)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Calling Deleted event. Action =[" + Action.ToString() + "]");
#endif
#endregion
this.Deleted(this, new DataActionProcessingEventArgs(Action));
}
}
/// <summary>
/// Executes DataAction object (if it's not marked as completed)
/// </summary>
/// <param name="Action">DataAction object to execute</param>
protected void ProcessDataAction(DataAction Action)
{
//BEFORE EVENT
if (this.BeforeDataActionProcessing != null)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Calling BeforeDataActionProcessing event(Action = [" + Action.ToString() + "]");
#endif
#endregion
this.BeforeDataActionProcessing(this, new DataActionProcessingEventArgs(Action));
}
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Processing data action (Action = [" + Action.ToString() + "]");
#endif
#endregion
//PROCESSING
if (!Action.Completed)
try
{
//Open transaction if necessary
if (this.TransactionMode == TransactionMode.PerRecord)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Entering " + this.TransactionMode.ToString() + " transaction mode");
#endif
#endregion
this.Adapter.BeginTransaction();
}
switch (Action.ActionType)
{
case ActionType.Inserted:
this.DoInsertAction(Action);
break;
case ActionType.Updated:
this.DoUpdateAction(Action);
break;
case ActionType.Deleted:
this.DoDeleteAction(Action);
break;
// CUSTOM ACTION
default:
break;
}
//close transaction if necessary
if (this.TransactionMode == TransactionMode.PerRecord)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Commiting " + this.TransactionMode.ToString() + " transaction");
#endif
#endregion
this.Adapter.CommitTransaction();
}
//now data action is finished
Action.SetCompleted();
}
catch (Exception ex1)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Exception cought: " + ex1.Message);
#endif
#endregion
try
{
//rollback transaction if necessary
if (this.TransactionMode == TransactionMode.PerRecord)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Rolling back " + this.TransactionMode.ToString() + " transaction");
#endif
#endregion
this.Adapter.RollbackTransaction();
}
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "ERROR: " + ex1.Message);
#endif
#endregion
Action.SetFailed(ex1.Message);
}
catch (Exception ex2)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Exception cought: " + ex2.Message);
#endif
#endregion
Action.SetFailed(ex1.Message + Environment.NewLine + "Transaction rollback failed with the following error: " + ex2.Message);
}
}
//AFTER EVENT
if (this.DataActionProcessed != null)
{
#region LOG ENTRY
#if !NO_LOG
Log.WriteLine(this, "Calling DataActionProcessed event. Action=[" + Action.ToString() + "]");
#endif
#endregion
this.DataActionProcessed(this, new DataActionProcessingEventArgs(Action));
}
}
