Is there a way to ensure a particular conditional clause is added to the expression tree on each select from a particular table?
For example, a table with a field with the date a record was deleted should never come back or be included in any kind of statement.
Rather than include a where clause each time, is there a way, without creating a view, to add a conditional to each select?
— Edit for clarity below —
I’m looking for a function I can partial, much like the Insert/Update/Delete functions, but for Selecting. I want to apply a blanket filter to all queries against a table.
Furthermore, if I get a collection of items from a parent, I want that set to be filtered as well.
Something like:
Private Function BaseItems() As IQueryable(Of Item) Return (From mi In dataContext.Items Where mi.DeletedAt Is Nothing Select mi) End Function Public Function GetItems() as list(of Item) Return (From mi in BaseItems() select mi).ToList() End Function works for functions I write and call. ITEMS, can be a child of MASTER, for example.
'assume TheMaster is a LinqToSQL data class which has a one to many child of Items TheMaster.Items.Count '<-- will bring back all Items. How do I always filter what populates by data classes?
AssociateWith in the DataLoadOptions of the DataContext seems to do what I’m needing.