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mastodon/app/services/precompute_feed_service.rb

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# frozen_string_literal: true
class PrecomputeFeedService < BaseService
# Fill up a user's home/mentions feed from DB and return a subset
# @param [Symbol] type :home or :mentions
# @param [Account] account
2017-04-02 13:46:31 +00:00
def call(_, account)
redis.pipelined do
# NOTE: Added `id desc, account_id desc` to `ORDER BY` section to optimize query.
Status.as_home_timeline(account).order(account_id: :desc).limit(FeedManager::MAX_ITEMS / 4).each do |status|
next if status.direct_visibility? || FeedManager.instance.filter?(:home, status, account.id)
redis.zadd(FeedManager.instance.key(:home, account.id), status.id, status.reblog? ? status.reblog_of_id : status.id)
end
end
end
private
def redis
Redis.current
end
end