From d4fedf84e024e0b5bb46707e3d1df08e8314485c Mon Sep 17 00:00:00 2001 From: Eugen Rochko Date: Thu, 27 Apr 2017 17:07:15 +0200 Subject: [PATCH] Cache Status#ancestors recursive query results (#2527) --- app/models/status.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/app/models/status.rb b/app/models/status.rb index 4696ee289a..d69765e964 100644 --- a/app/models/status.rb +++ b/app/models/status.rb @@ -91,7 +91,7 @@ class Status < ApplicationRecord end def ancestors(account = nil) - ids = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, in_reply_to_id, path) AS (SELECT id, in_reply_to_id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, statuses.in_reply_to_id, path || statuses.id FROM search_tree JOIN statuses ON statuses.id = search_tree.in_reply_to_id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path DESC', id]) - [self]).pluck(:id) + ids = Rails.cache.fetch("ancestors:#{id}") { (Status.find_by_sql(['WITH RECURSIVE search_tree(id, in_reply_to_id, path) AS (SELECT id, in_reply_to_id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, statuses.in_reply_to_id, path || statuses.id FROM search_tree JOIN statuses ON statuses.id = search_tree.in_reply_to_id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path DESC', id]) - [self]).pluck(:id) } statuses = Status.where(id: ids).group_by(&:id) results = ids.map { |id| statuses[id].first } results = results.reject { |status| filter_from_context?(status, account) }