private ExpressionDto LoadFreshExpression()
{
ExpressionDto expression = null;
if (SegmentId == 0)
{
// Create an empty expression
expression = new ExpressionDto();
}
else
{
expression = ExpressionManager.GetExpressionBySegmentDto(SegmentId);
}
// persist in session
Session[_ExpressionDtoEditSessionKey] = expression;
return(expression);
}
/// <summary>
/// Handles the SaveChanges event of the EditSaveControl control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
void EditSaveControl_SaveChanges(object sender, SaveControl.SaveEventArgs e)
{
// Validate form
if (!this.Page.IsValid)
{
e.RunScript = false;
return;
}
SegmentDto segment = (SegmentDto)Session[_SegmentDtoEditSessionKey];
ExpressionDto expression = (ExpressionDto)Session[_ExpressionDtoEditSessionKey];
if (segment == null && SegmentId > 0)
{
segment = SegmentManager.GetSegmentDto(SegmentId);
}
else if (segment == null && SegmentId == 0)
{
segment = new SegmentDto();
}
if (expression == null && SegmentId > 0)
{
expression = ExpressionManager.GetExpressionBySegmentDto(SegmentId);
}
else if (expression == null && SegmentId == 0)
{
expression = new ExpressionDto();
}
/*
* // if we add a new segment, remove all other segments from Dto that is passed to control that saves changes
* if (SegmentId == 0 && segment != null && segment.Segment.Count > 0)
* {
* SegmentDto.SegmentRow[] rows2del = (SegmentDto.SegmentRow[])segment.Segment.Select(String.Format("{0} <> {1}", _SegmentIdString, SegmentId));
* if (rows2del != null)
* foreach (SegmentDto.SegmentRow row in rows2del)
* segment.Segment.RemoveSegmentRow(row);
* }*/
IDictionary context = new ListDictionary();
context.Add(_SegmentDtoString, segment);
context.Add(_ExpressionDtoString, expression);
ViewControl.SaveChanges(context);
// save expressionDto
if (expression.HasChanges())
{
ExpressionManager.SaveExpression(expression);
}
// update segment conditions
foreach (ExpressionDto.ExpressionRow tmpRow in expression.Expression.Rows)
{
// skip deleted rows
if (tmpRow.RowState == DataRowState.Deleted)
{
continue;
}
// add SegmentConditionRow
SegmentDto.SegmentConditionRow[] segmentConditionRows = (SegmentDto.SegmentConditionRow[])segment.SegmentCondition.Select(String.Format("ExpressionId={0}", tmpRow.ExpressionId));
if (segmentConditionRows == null || segmentConditionRows.Length == 0)
{
// add new expression
SegmentDto.SegmentConditionRow newSCRow = segment.SegmentCondition.NewSegmentConditionRow();
newSCRow.ExpressionId = tmpRow.ExpressionId;
newSCRow.SegmentId = segment.Segment[0].SegmentId;
if (newSCRow.RowState == DataRowState.Detached)
{
segment.SegmentCondition.Rows.Add(newSCRow);
}
}
}
// save segmentDto
if (segment.HasChanges())
{
SegmentManager.SaveSegment(segment);
}
// we don't need to store Dto in session any more
Session.Remove(_SegmentDtoEditSessionKey);
Session.Remove(_ExpressionDtoEditSessionKey);
}
