mastodon/app/lib/vacuum/statuses_vacuum.rb

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# frozen_string_literal: true
class Vacuum::StatusesVacuum
include Redisable
def initialize(retention_period)
@retention_period = retention_period
end
def perform
vacuum_statuses! if retention_period?
end
private
def vacuum_statuses!
statuses_scope.find_in_batches do |statuses|
# Side-effects not covered by foreign keys, such
# as the search index, must be handled first.
remove_from_account_conversations(statuses)
remove_from_search_index(statuses)
# Foreign keys take care of most associated records
# for us. Media attachments will be orphaned.
Status.where(id: statuses.map(&:id)).delete_all
end
end
def statuses_scope
Status.unscoped.kept.where(account: Account.remote).where(Status.arel_table[:id].lt(retention_period_as_id)).select(:id, :visibility)
end
def retention_period_as_id
Mastodon::Snowflake.id_at(@retention_period.ago, with_random: false)
end
def analyze_statuses!
ActiveRecord::Base.connection.execute('ANALYZE statuses')
end
def remove_from_account_conversations(statuses)
Status.where(id: statuses.select(&:direct_visibility?).map(&:id)).includes(:account, mentions: :account).each(&:unlink_from_conversations)
end
def remove_from_search_index(statuses)
with_redis { |redis| redis.sadd('chewy:queue:StatusesIndex', statuses.map(&:id)) } if Chewy.enabled?
end
def retention_period?
@retention_period.present?
end
end