/// <inheritdoc/> public async Task <Maybe <(WpPostId?prev, WpPostId?next)> > PreviousAndNextPostsAsync(WpPostId id, Query.GetPostsOptions opt) { using var w = Db.UnitOfWork; return(await QueryPostsF.GetPreviousAndNextAsync(Db, w, id, opt).ConfigureAwait(false)); }