private void DeleteXrefItem(L item, Database db)
{
if (XrefsByListId.ContainsKey(item.IdValue.Value))
{
XrefsByListId[item.IdValue.Value].Delete(db);
}
}
/// <summary>
/// Removes the specified item from this collection, deletes the xref entry but
/// does not delete the item from the database
/// </summary>
/// <param name="item"></param>
public void Remove(L item)
{
if (_values.Contains(item))
{
_values.Remove(item);
_book = new Book <L>(_values);
}
if (XrefsByListId.ContainsKey(item.IdValue.Value))
{
XrefsByListId[item.IdValue.Value].Delete();
}
}
private X EnsureXref(L item, Database db = null)
{
db = db ?? Database;
if (item.IdValue != null && XrefsByListId.ContainsKey(item.IdValue.Value))
{
return(XrefsByListId[item.IdValue.Value]);
}
else
{
if (item.IsNew)
{
item.Save(db);
}
X result = null;
QuerySet q = Dao.GetQuerySet(db);
q.Select <X>().Where(new QueryFilter(ListColumnName) == item.IdValue.Value && new QueryFilter(ParentColumnName) == Parent.IdValue);
q.Execute(db);
if (q.Results[0].DataTable.Rows.Count > 0)
{
result = new X();
result.DataRow = q.Results[0].DataTable.Rows[0];
}
else
{
result = new X();
result.SetValue(string.Format("{0}Id", Parent.GetType().Name), Parent.IdValue);
result.SetValue(string.Format("{0}Id", typeof(L).Name), item.IdValue);
result.Save(db);
XrefsByListId.Add(item.IdValue.Value, result);
}
return(result);
}
}
