chinwagsocial/app/services/precompute_feed_service.rb
Eugen Rochko dc8a6244fc Fix #2619 - When redis feed is empty, fall back to database (#3721)
* Fix #2619 - When redis feed is empty, fall back to database

* Use redis value to return feed from database only while RegenerationWorker
hasn't finished running

* Fix specs

* Replace usage of reject!
2017-06-14 13:37:03 +02:00

52 lines
1 KiB
Ruby

# frozen_string_literal: true
class PrecomputeFeedService < BaseService
LIMIT = FeedManager::MAX_ITEMS / 4
def call(account)
@account = account
populate_feed
end
private
attr_reader :account
def populate_feed
redis.pipelined do
statuses.each do |status|
process_status(status)
end
redis.del("account:#{@account.id}:regeneration")
end
end
def process_status(status)
add_status_to_feed(status) unless skip_status?(status)
end
def skip_status?(status)
status.direct_visibility? || status_filtered?(status)
end
def add_status_to_feed(status)
redis.zadd(account_home_key, status.id, status.reblog? ? status.reblog_of_id : status.id)
end
def status_filtered?(status)
FeedManager.instance.filter?(:home, status, account.id)
end
def account_home_key
FeedManager.instance.key(:home, account.id)
end
def statuses
Status.as_home_timeline(account).order(account_id: :desc).limit(LIMIT)
end
def redis
Redis.current
end
end