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mastodon/app/models/feed.rb
Akihiko Odaki (@fn_aki@pawoo.net) f85dbe83c8 Remove sort in Feed (#4050)
In from_redis method, statuses retrieved from the database was mapped to
the IDs retrieved from Redis. It was equivalent to order from high to low
because those IDs are sorted in the same order.
Statuses are ordered with the ID by default, so we do not have to reorder.
Sorting statuses in the database is even faster since the IDs are indexed
with B-tree.
2017-07-03 13:17:27 +02:00

40 lines
1,004 B
Ruby

# frozen_string_literal: true
class Feed
def initialize(type, account)
@type = type
@account = account
end
def get(limit, max_id = nil, since_id = nil)
if redis.exists("account:#{@account.id}:regeneration")
from_database(limit, max_id, since_id)
else
from_redis(limit, max_id, since_id)
end
end
private
def from_redis(limit, max_id, since_id)
max_id = '+inf' if max_id.blank?
since_id = '-inf' if since_id.blank?
unhydrated = redis.zrevrangebyscore(key, "(#{max_id}", "(#{since_id}", limit: [0, limit], with_scores: true).map(&:last).map(&:to_i)
Status.where(id: unhydrated).cache_ids
end
def from_database(limit, max_id, since_id)
Status.as_home_timeline(@account)
.paginate_by_max_id(limit, max_id, since_id)
.reject { |status| FeedManager.instance.filter?(:home, status, @account.id) }
end
def key
FeedManager.instance.key(@type, @account.id)
end
def redis
Redis.current
end
end