101 lines
3.7 KiB
Ruby
101 lines
3.7 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class BatchedRemoveStatusService < BaseService
|
|
include Redisable
|
|
|
|
# Delete multiple statuses and reblogs of them as efficiently as possible
|
|
# @param [Enumerable<Status>] statuses An array of statuses
|
|
# @param [Hash] options
|
|
# @option [Boolean] :skip_side_effects Do not modify feeds and send updates to streaming API
|
|
def call(statuses, **options)
|
|
ActiveRecord::Associations::Preloader.new(
|
|
records: statuses,
|
|
associations: options[:skip_side_effects] ? :reblogs : [:account, :tags, reblogs: :account]
|
|
).call
|
|
|
|
statuses_and_reblogs = statuses.flat_map { |status| [status] + status.reblogs }
|
|
|
|
# The conversations for direct visibility statuses also need
|
|
# to be manually updated. This part is not efficient but we
|
|
# rely on direct visibility statuses being relatively rare.
|
|
statuses_with_account_conversations = statuses.select(&:direct_visibility?)
|
|
|
|
ActiveRecord::Associations::Preloader.new(
|
|
records: statuses_with_account_conversations,
|
|
associations: [mentions: :account]
|
|
).call
|
|
|
|
statuses_with_account_conversations.each(&:unlink_from_conversations!)
|
|
|
|
# We do not batch all deletes into one to avoid having a long-running
|
|
# transaction lock the database, but we use the delete method instead
|
|
# of destroy to avoid all callbacks. We rely on foreign keys to
|
|
# cascade the delete faster without loading the associations.
|
|
statuses_and_reblogs.each_slice(50) { |slice| Status.where(id: slice.map(&:id)).delete_all }
|
|
|
|
# Since we skipped all callbacks, we also need to manually
|
|
# deindex the statuses
|
|
if Chewy.enabled?
|
|
Chewy.strategy.current.update(StatusesIndex, statuses_and_reblogs)
|
|
Chewy.strategy.current.update(PublicStatusesIndex, statuses_and_reblogs)
|
|
end
|
|
|
|
return if options[:skip_side_effects]
|
|
|
|
# Batch by source account
|
|
statuses_and_reblogs.group_by(&:account_id).each_value do |account_statuses|
|
|
account = account_statuses.first.account
|
|
|
|
next unless account
|
|
|
|
unpush_from_home_timelines(account, account_statuses)
|
|
unpush_from_list_timelines(account, account_statuses)
|
|
end
|
|
|
|
# Cannot be batched
|
|
@status_id_cutoff = Mastodon::Snowflake.id_at(2.weeks.ago)
|
|
redis.pipelined do |pipeline|
|
|
statuses.each do |status|
|
|
unpush_from_public_timelines(status, pipeline)
|
|
end
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def unpush_from_home_timelines(account, statuses)
|
|
account.followers_for_local_distribution.includes(:user).reorder(nil).find_each do |follower|
|
|
statuses.each do |status|
|
|
FeedManager.instance.unpush_from_home(follower, status)
|
|
end
|
|
end
|
|
end
|
|
|
|
def unpush_from_list_timelines(account, statuses)
|
|
account.lists_for_local_distribution.select(:id, :account_id).includes(account: :user).reorder(nil).find_each do |list|
|
|
statuses.each do |status|
|
|
FeedManager.instance.unpush_from_list(list, status)
|
|
end
|
|
end
|
|
end
|
|
|
|
def unpush_from_public_timelines(status, pipeline)
|
|
return unless status.public_visibility? && status.id > @status_id_cutoff
|
|
|
|
payload = Oj.dump(event: :delete, payload: status.id.to_s)
|
|
|
|
pipeline.publish('timeline:public', payload)
|
|
pipeline.publish(status.local? ? 'timeline:public:local' : 'timeline:public:remote', payload)
|
|
|
|
if status.media_attachments.any?
|
|
pipeline.publish('timeline:public:media', payload)
|
|
pipeline.publish(status.local? ? 'timeline:public:local:media' : 'timeline:public:remote:media', payload)
|
|
end
|
|
|
|
status.tags.map { |tag| tag.name.mb_chars.downcase }.each do |hashtag|
|
|
pipeline.publish("timeline:hashtag:#{hashtag}", payload)
|
|
pipeline.publish("timeline:hashtag:#{hashtag}:local", payload) if status.local?
|
|
end
|
|
end
|
|
end
|