Instance Method

reset()

Returns the context to its base state.

Declaration

func reset()

Discussion

All the receiver's managed objects are “forgotten.” If you use this method, you should ensure that you also discard references to any managed objects fetched using the receiver, since they will be invalid afterwards.

See Also

Undoing Changes

var undoManager: UndoManager?

The undo manager of the context.

func undo()

Sends an undo message to the context’s undo manager, asking it to reverse the latest uncommitted changes applied to objects in the object graph.

func redo()

Sends an redo message to the context’s undo manager, asking it to reverse the latest undo operation applied to objects in the object graph.

func rollback()

Removes everything from the undo stack, discards all insertions and deletions, and restores updated objects to their last committed values.