CodeSnip Old Code (SVN)

Changed TDatabase.SelectSnippets to take a simple function reference as its parameter instead of IDBFilter instance.
Modified calling code accordingly.
Removed now-redundant IDBFilter interface and implementations in TDBFilter and TDelegatedDBFilter.

Renamed IReadOnlySnippet as ISnippet and made required changes to affected code.
Also renamed TDatabase's LookupReadOnlySnippet method and LookupSnippet.

Changed IQuery's FilterSelection method to take an IDBFilter instance as a parameter instead of a callback function. Changed implementation in TQuery to use the new filter and to use Database.SelectSnippets instead of _Database.Select to perform actual selection.

Changed code that accessed _Database.SelectAll to use Database.GetAllSnippets instead.
Deleted SelectAll method from IDatabase and _TDatabase.

Removed redundant DB.UCategory unit reference.

Removed redundant GetCatSelection method from IQuery and TQuery.

Added IQuery.FilterSelection method, and its implementation in TQuery, that takes a filter function and returns the result of applying the filter to the current selection.

Renamed IDatabase and Database function, along with internal TDatabase class and PvtDatabase varibale by placing underscore in front of their names. This is to flag the items as "legacy" and to avoid name clashes with new database code being developed.
Modified all code that calls Database to use _Database instead.

Removed unused USnippetIDs unit from project.
Changed affected units to use CS.Database.Snippets instead.

Changed data structure that maintains list of selected snippets from TSnippetList to ISnippetIDList and made necessary changes to affected code.
Modified code that calls ISearch.Execute re changes made in USearch unit at revision 3980.