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Fix loading Home TL from database not respecting min_id
and not including DMs (#1744)
* Rework tests * Add tests * Fix HomeFeed#get with min_id fetching from database * Minor code cleanup and optimizations * Add tests * Take DMs into account when fetching home TL from database * Fix not listing own DMs in Home timeline * Add tests * Please CodeClimate
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@ -16,34 +16,47 @@ class HomeFeed < Feed
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since_id = since_id.to_i if since_id.present?
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min_id = min_id.to_i if min_id.present?
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statuses = from_redis(limit, max_id, since_id, min_id)
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if min_id.present?
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redis_min_id = fetch_min_redis_id
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return from_redis(limit, max_id, since_id, min_id) if redis_min_id && min_id >= redis_min_id
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return statuses if statuses.size >= limit
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statuses = from_database(limit, redis_min_id, since_id, min_id)
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return statuses if statuses.size >= limit
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redis_min_id = from_redis(1, nil, nil, 0).first&.id if min_id.present? || since_id.present?
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redis_sufficient = redis_min_id && (
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(min_id.present? && min_id >= redis_min_id) ||
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(since_id.present? && since_id >= redis_min_id)
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)
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remaining_limit = limit - statuses.size
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min_id = statuses.first.id unless statuses.empty?
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from_redis(remaining_limit, max_id, since_id, min_id) + statuses
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else
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statuses = from_redis(limit, max_id, since_id, min_id)
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return statuses if statuses.size >= limit
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if since_id.present?
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redis_min_id = fetch_min_redis_id
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return statuses if redis_min_id.present? && since_id >= redis_min_id
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end
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unless redis_sufficient
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remaining_limit = limit - statuses.size
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max_id = statuses.last.id unless statuses.empty?
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statuses += from_database(remaining_limit, max_id, since_id, min_id)
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statuses + from_database(remaining_limit, max_id, since_id, min_id)
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end
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statuses
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end
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protected
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def from_database(limit, max_id, since_id, min_id)
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# Note that this query will not contains direct messages
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Status
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.where(account: [@account] + @account.following)
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.where(visibility: [:public, :unlisted, :private])
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scope = Status.where(account: @account.following)
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scope = scope.left_outer_joins(:mentions)
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scope = scope.where(visibility: %i(public unlisted private)).or(scope.where(mentions: { account_id: @account.id })).group(Status.arel_table[:id])
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scope = scope.or(Status.where(account: @account))
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scope
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.to_a_paginated_by_id(limit, min_id: min_id, max_id: max_id, since_id: since_id)
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.reject { |status| FeedManager.instance.filter?(:home, status, @account) }
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.sort_by { |status| -status.id }
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end
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private
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def fetch_min_redis_id
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redis.zrangebyscore(key, '(0', '(+inf', limit: [0, 1], with_scores: true).first&.first&.to_i
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end
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end
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@ -1,33 +1,83 @@
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require 'rails_helper'
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RSpec.describe HomeFeed, type: :model do
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let(:account) { Fabricate(:account) }
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let(:account) { Fabricate(:account) }
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let(:followed) { Fabricate(:account) }
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let(:other) { Fabricate(:account) }
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subject { described_class.new(account) }
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describe '#get' do
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before do
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Fabricate(:status, account: account, id: 1)
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Fabricate(:status, account: account, id: 2)
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Fabricate(:status, account: account, id: 3)
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Fabricate(:status, account: account, id: 10)
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account.follow!(followed)
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Fabricate(:status, account: account, id: 1)
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Fabricate(:status, account: account, id: 2)
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status = Fabricate(:status, account: followed, id: 3)
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Fabricate(:mention, account: account, status: status)
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Fabricate(:status, account: account, id: 10)
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Fabricate(:status, account: other, id: 11)
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Fabricate(:status, account: followed, id: 12, visibility: :private)
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Fabricate(:status, account: followed, id: 13, visibility: :direct)
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Fabricate(:status, account: account, id: 14, visibility: :direct)
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dm = Fabricate(:status, account: followed, id: 15, visibility: :direct)
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Fabricate(:mention, account: account, status: dm)
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end
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context 'when feed is generated' do
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before do
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FeedManager.instance.populate_home(account)
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# Add direct messages because populate_home does not do that
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Redis.current.zadd(
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FeedManager.instance.key(:home, account.id),
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[[4, 4], [3, 3], [2, 2], [1, 1]]
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[[14, 14], [15, 15]]
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)
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end
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it 'gets statuses with ids in the range from redis with database' do
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results = subject.get(3)
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results = subject.get(5)
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expect(results.map(&:id)).to eq [3, 2, 1]
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expect(results.map(&:id)).to eq [15, 14, 12, 10, 3]
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expect(results.first.attributes.keys).to eq %w(id updated_at)
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end
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it 'with since_id present' do
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results = subject.get(5, nil, 3, nil)
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expect(results.map(&:id)).to eq [15, 14, 12, 10]
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end
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it 'with min_id present' do
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results = subject.get(3, nil, nil, 0)
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expect(results.map(&:id)).to eq [3, 2, 1]
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end
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end
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context 'when feed is only partial' do
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before do
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FeedManager.instance.populate_home(account)
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# Add direct messages because populate_home does not do that
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Redis.current.zadd(
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FeedManager.instance.key(:home, account.id),
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[[14, 14], [15, 15]]
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)
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Redis.current.zremrangebyrank(FeedManager.instance.key(:home, account.id), 0, -2)
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end
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it 'gets statuses with ids in the range from redis with database' do
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results = subject.get(5)
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expect(results.map(&:id)).to eq [15, 14, 12, 10, 3]
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expect(results.first.attributes.keys).to eq %w(id updated_at)
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end
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it 'with since_id present' do
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results = subject.get(5, nil, 3, nil)
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expect(results.map(&:id)).to eq [15, 14, 12, 10]
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end
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it 'with min_id present' do
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results = subject.get(3, nil, nil, 0)
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expect(results.map(&:id)).to eq [3, 2, 1]
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@ -40,9 +90,14 @@ RSpec.describe HomeFeed, type: :model do
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end
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it 'returns from database' do
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results = subject.get(3)
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results = subject.get(5)
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expect(results.map(&:id)).to eq [10, 3, 2]
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expect(results.map(&:id)).to eq [15, 14, 12, 10, 3]
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end
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it 'with since_id present' do
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results = subject.get(5, nil, 3, nil)
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expect(results.map(&:id)).to eq [15, 14, 12, 10]
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end
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it 'with min_id present' do
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