CodeSnip Old Code (SVN)

Removed unused internal type.

Moved TDBSnippetProp type from CS.Database.Type unit to CS.Database.IO.Native unit.
Deleted TDBSnippetProps set type from CS.Database.Type.

Removed TDBSnippetProps parameter from TDatabase.LookupSnippet method.

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.

Added TODO / note re how to handle any performance issues re cloning of snippets on each lookup.

Removed facility to specify fields needed when getting read only snippet: now all read only snippets have full compliment of fields.

NOTE: I've done this because being able select fields was potentially a way of introducing bugs, especially when it isn't easy to track how a read only snippet is used.

Added new GetReferrersTo and GetDependentsOf methods to TDatabase.
Removed IDatabaseEdit's GetReferrers and GetDependents and _IDatabase's GetReferrersTo and GetDependentsOf methods along with their implementations in _TDatabase.
Modified code that used removed _TDatabase methods to use the new TDatabase methods instead.

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

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

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.