Remove caching in cache_collection (#29862)

This commit is contained in:
Claire 2024-04-08 15:46:13 +02:00
parent 86807e4799
commit c3be5a3d2e
8 changed files with 14 additions and 93 deletions

View file

@ -198,34 +198,19 @@ module CacheConcern
end
end
# TODO: Rename this method, as it does not perform any caching anymore.
def cache_collection(raw, klass)
return raw unless klass.respond_to?(:with_includes)
return raw unless klass.respond_to?(:preload_cacheable_associations)
raw = raw.cache_ids.to_a if raw.is_a?(ActiveRecord::Relation)
return [] if raw.empty?
records = raw.to_a
cached_keys_with_value = begin
Rails.cache.read_multi(*raw).transform_keys(&:id).transform_values { |r| ActiveRecordCoder.load(r) }
rescue ActiveRecordCoder::Error
{} # The serialization format may have changed, let's pretend it's a cache miss.
end
klass.preload_cacheable_associations(records)
uncached_ids = raw.map(&:id) - cached_keys_with_value.keys
klass.reload_stale_associations!(cached_keys_with_value.values) if klass.respond_to?(:reload_stale_associations!)
unless uncached_ids.empty?
uncached = klass.where(id: uncached_ids).with_includes.index_by(&:id)
uncached.each_value do |item|
Rails.cache.write(item, ActiveRecordCoder.dump(item))
end
end
raw.filter_map { |item| cached_keys_with_value[item.id] || uncached[item.id] }
records
end
# TODO: Rename this method, as it does not perform any caching anymore.
def cache_collection_paginated_by_id(raw, klass, limit, options)
cache_collection raw.cache_ids.to_a_paginated_by_id(limit, options), klass
cache_collection raw.to_a_paginated_by_id(limit, options), klass
end
end

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@ -14,6 +14,10 @@ module Cacheable
includes(@cache_associated)
end
def preload_cacheable_associations(records)
ActiveRecord::Associations::Preloader.new(records: records, associations: @cache_associated).call
end
def cache_ids
select(:id, :updated_at)
end

View file

@ -28,7 +28,7 @@ class Feed
unhydrated = redis.zrangebyscore(key, "(#{min_id}", "(#{max_id}", limit: [0, limit], with_scores: true).map(&:first).map(&:to_i)
end
Status.where(id: unhydrated).cache_ids
Status.where(id: unhydrated)
end
def key

View file

@ -29,7 +29,7 @@ class PublicFeed
scope.merge!(media_only_scope) if media_only?
scope.merge!(language_scope) if account&.chosen_languages.present?
scope.cache_ids.to_a_paginated_by_id(limit, max_id: max_id, since_id: since_id, min_id: min_id)
scope.to_a_paginated_by_id(limit, max_id: max_id, since_id: since_id, min_id: min_id)
end
private

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@ -338,38 +338,6 @@ class Status < ApplicationRecord
StatusPin.select('status_id').where(status_id: status_ids).where(account_id: account_id).each_with_object({}) { |p, h| h[p.status_id] = true }
end
def reload_stale_associations!(cached_items)
account_ids = []
cached_items.each do |item|
account_ids << item.account_id
account_ids << item.reblog.account_id if item.reblog?
end
account_ids.uniq!
status_ids = cached_items.map { |item| item.reblog? ? item.reblog_of_id : item.id }.uniq
return if account_ids.empty?
accounts = Account.where(id: account_ids).includes(:account_stat, :user).index_by(&:id)
status_stats = StatusStat.where(status_id: status_ids).index_by(&:status_id)
cached_items.each do |item|
item.account = accounts[item.account_id]
item.reblog.account = accounts[item.reblog.account_id] if item.reblog?
if item.reblog?
status_stat = status_stats[item.reblog.id]
item.reblog.status_stat = status_stat if status_stat.present?
else
status_stat = status_stats[item.id]
item.status_stat = status_stat if status_stat.present?
end
end
end
def from_text(text)
return [] if text.blank?

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@ -33,7 +33,7 @@ class TagFeed < PublicFeed
scope.merge!(account_filters_scope) if account?
scope.merge!(media_only_scope) if media_only?
scope.cache_ids.to_a_paginated_by_id(limit, max_id: max_id, since_id: since_id, min_id: min_id)
scope.to_a_paginated_by_id(limit, max_id: max_id, since_id: since_id, min_id: min_id)
end
private

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@ -221,39 +221,4 @@ describe ApplicationController do
include_examples 'respond_with_error', 422
end
describe 'cache_collection' do
subject do
Class.new(ApplicationController) do
public :cache_collection
end
end
shared_examples 'receives :with_includes' do |fabricator, klass|
it 'uses raw if it is not an ActiveRecord::Relation' do
record = Fabricate(fabricator)
expect(subject.new.cache_collection([record], klass)).to eq [record]
end
end
shared_examples 'cacheable' do |fabricator, klass|
include_examples 'receives :with_includes', fabricator, klass
it 'calls cache_ids of raw if it is an ActiveRecord::Relation' do
record = Fabricate(fabricator)
relation = klass.none
allow(relation).to receive(:cache_ids).and_return([record])
expect(subject.new.cache_collection(relation, klass)).to eq [record]
end
end
it 'returns raw unless class responds to :with_includes' do
raw = Object.new
expect(subject.new.cache_collection(raw, Object)).to eq raw
end
context 'with a Status' do
include_examples 'cacheable', :status, Status
end
end
end

View file

@ -27,7 +27,6 @@ RSpec.describe HomeFeed do
results = subject.get(3)
expect(results.map(&:id)).to eq [3, 2]
expect(results.first.attributes.keys).to eq %w(id updated_at)
end
end