private void UpdateLinksInternal(PreProcessorContext result, IPageRepository repository)
{
var added = result.LinkedPages.Except(References.Select(k => k.PagePath)).ToList();
if (added.Any())
{
var pages = repository.GetPages(added);
foreach (var page in pages)
{
page.BackReferences.Any(); // lazy load.
page._backReferences.Add(this);
}
var missingPages = added.Except(pages.Select(x => x.PagePath));
repository.AddMissingLinks(this, missingPages);
}
var removed = References.Select(k => k.PagePath).Except(result.LinkedPages).ToList();
if (removed.Any())
RemoveBackLinks(removed);
}