1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
class FanOutOnWriteService < BaseService
# Push a status into home and mentions feeds
# @param [Status] status
def call(status)
deliver_to_self(status) if status.account.local?
deliver_to_followers(status)
deliver_to_mentioned(status)
end
private
def deliver_to_self(status)
push(:home, status.account.id, status)
end
def deliver_to_followers(status)
status.account.followers.each do |follower|
next if !follower.local? || FeedManager.filter_status?(status, follower)
push(:home, follower.id, status)
end
end
def deliver_to_mentioned(status)
status.mentions.each do |mention|
mentioned_account = mention.account
next unless mentioned_account.local?
push(:mentions, mentioned_account.id, status)
end
end
def push(type, receiver_id, status)
redis.zadd(FeedManager.key(type, receiver_id), status.id, status.id)
trim(type, receiver_id)
end
def trim(type, receiver_id)
return unless redis.zcard(FeedManager.key(type, receiver_id)) > FeedManager::MAX_ITEMS
last = redis.zrevrange(FeedManager.key(type, receiver_id), FeedManager::MAX_ITEMS - 1, FeedManager::MAX_ITEMS - 1)
redis.zremrangebyscore(FeedManager.key(type, receiver_id), '-inf', "(#{last.last}")
end
def redis
$redis
end
end
|
