public void Existing(T model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
_trackedModels.Add(model, TrackedModel <T> .Existing(model));
}
public void New(T model)
{
if (model == null)
{
throw new ArgumentNullException(nameof(model));
}
if (_trackedModels.TryGetValue(model, out var existingModel) && existingModel.State == TrackedModelState.Removed)
{
_trackedModels[model] = existingModel.WithNewState(TrackedModelState.Existing);
return;
}
_trackedModels.Add(model, TrackedModel <T> .New(model));
}
