me/glitchier-soc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Remove sort in Feed (#4050)

Browse source 
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.
This commit is contained in:
Akihiko Odaki (@fn_aki@pawoo.net) 2017-07-03 20:17:27 +09:00 committed by Eugen Rochko
parent 40a69352cc
commit d5586563c7
2 changed files with 2 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
app/models/feed.rb
View file

@ -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)

2
spec/models/feed_spec.rb
View file

@ -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)