/// <summary>
/// Analyzes a business entity against the snapshot and saves log if there has been a change.
/// Returns true if there has been a change.
/// </summary>
/// <param name="entity">The entity to be compared to the snapshot</param>
/// <param name="userName">The username that's performing the change</param>
/// <returns></returns>
public bool SaveChangeLog(MyGeneration.dOOdads.BusinessEntity entity, int userId)
{
bool dataChanged=false;
foreach(DataColumn col in entity.DefaultView.Table.Columns)
{
string colBeforeChange = snapShot.GetColumn(col.ColumnName).ToString();
string colAfterChange=entity.GetColumn(col.ColumnName).ToString();
if (colBeforeChange != colAfterChange) //This column has been changed
{
dataChanged = true;
LogReceiptChange log = new LogReceiptChange();
log.AddNew();
log.TableName = entity.GetType().ToString();
log.ColumnName = col.ColumnName;
log.ChangedBy = userId;
log.DateChanged = DateTimeHelper.ServerDateTime;
log.RefID = int.Parse(snapShot.GetColumn("ID").ToString());
if (snapShot.GetColumn(col.ColumnName) != null)
log.OldValue = snapShot.GetColumn(col.ColumnName).ToString();
if (entity.GetColumn(col.ColumnName) != null)
log.NewValue = entity.GetColumn(col.ColumnName).ToString();
log.Save();
}
}
return dataChanged;
}
public override void AddOrderBy(DynamicQuery countAll, MyGeneration.dOOdads.WhereParameter.Dir direction)
{
if(countAll.CountAll)
{
base.AddOrderBy ("COUNT(*)", direction);
}
}
public override void AddOrderBy(AggregateParameter aggregate, MyGeneration.dOOdads.WhereParameter.Dir direction)
{
base.AddOrderBy (GetAggregate(aggregate, false), direction);
}
public override void AddOrderBy(string column, MyGeneration.dOOdads.WhereParameter.Dir direction)
{
base.AddOrderBy(D(column), direction);
}
public override void AddOrderBy(AggregateParameter aggregate, MyGeneration.dOOdads.WhereParameter.Dir direction)
{
base.AddOrderBy("`" + aggregate.Alias + "`", direction);
}
public EditableEntity(MyGeneration.dOOdads.SqlClientEntity e)
{
m_sqlClientEntity = e;
}
/// <summary>
/// Takes a snapshot of a business entity object
/// Use this before you make any manipulations with the object.
/// </summary>
/// <param name="entity"></param>
private void TakeSnapshot(MyGeneration.dOOdads.BusinessEntity entity)
{
snapShot = entity;
}
public LogReceiptChange(MyGeneration.dOOdads.BusinessEntity entity)
{
TakeSnapshot(entity);
}