Extension(index): Extension<Arc<Index>>, Path(inscription_id): Path<InscriptionId>, ) -> ServerResult<Response> { Self::children_paginated( Extension(page_config), Extension(index), Path((inscription_id, 0)), ) .await } async fn children_paginated( Extension(page_config): Extension<Arc<PageConfig>>, Extension(index): Extension<Arc<Index>>, Path((parent, page)): Path<(InscriptionId, usize)>, ) -> ServerResult<Response> { let entry = index .get_inscription_entry(parent)? .ok_or_not_found(|| format!("inscription {parent}"))?; let parent_number = entry.inscription_number; let (children, more_children) = index.get_children_by_sequence_number_paginated(entry.sequence_number, 100, page)?; let prev_page = page.checked_sub(1); let next_page = more_children.then_some(page + 1); Ok( ChildrenHtml { parent, parent_number, children, prev_page, next_page, } .page(page_config)