From d5586563c7d479db9ea117ad4397bf1894a6012b Mon Sep 17 00:00:00 2001 From: "Akihiko Odaki (@fn_aki@pawoo.net)" Date: Mon, 3 Jul 2017 20:17:27 +0900 Subject: [PATCH] Remove sort in Feed (#4050) In from_redis method, statuses retrieved from the database was mapped to the IDs retrieved from Redis. It was equivalent to order from high to low because those IDs are sorted in the same order. Statuses are ordered with the ID by default, so we do not have to reorder. Sorting statuses in the database is even faster since the IDs are indexed with B-tree. --- app/models/feed.rb | 3 +-- spec/models/feed_spec.rb | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/app/models/feed.rb b/app/models/feed.rb index 5125e51ff8..beb4a8de3f 100644 --- a/app/models/feed.rb +++ b/app/models/feed.rb @@ -20,8 +20,7 @@ class Feed max_id = '+inf' if max_id.blank? since_id = '-inf' if since_id.blank? unhydrated = redis.zrevrangebyscore(key, "(#{max_id}", "(#{since_id}", limit: [0, limit], with_scores: true).map(&:last).map(&:to_i) - status_map = Status.where(id: unhydrated).cache_ids.map { |s| [s.id, s] }.to_h - unhydrated.map { |id| status_map[id] }.compact + Status.where(id: unhydrated).cache_ids end def from_database(limit, max_id, since_id) diff --git a/spec/models/feed_spec.rb b/spec/models/feed_spec.rb index 1cdb3a7839..1c377c17f3 100644 --- a/spec/models/feed_spec.rb +++ b/spec/models/feed_spec.rb @@ -2,7 +2,7 @@ require 'rails_helper' RSpec.describe Feed, type: :model do describe '#get' do - it 'gets statuses with ids in the range, maintining the order from Redis' do + it 'gets statuses with ids in the range' do account = Fabricate(:account) Fabricate(:status, account: account, id: 1) Fabricate(:status, account: account, id: 2)