35 lines
816 B
Ruby
35 lines
816 B
Ruby
class PrecomputeFeedService < BaseService
|
|
MAX_FEED_SIZE = 800
|
|
|
|
# Fill up a user's home/mentions feed from DB and return it
|
|
# @param [Symbol] type :home or :mentions
|
|
# @param [Account] account
|
|
# @return [Array]
|
|
def call(type, account)
|
|
statuses = send(type.to_s, account).order('created_at desc').limit(MAX_FEED_SIZE)
|
|
statuses.each { |status| push(type, account.id, status) }
|
|
statuses
|
|
end
|
|
|
|
private
|
|
|
|
def push(type, receiver_id, status)
|
|
redis.zadd(key(type, receiver_id), status.created_at.to_i, status.id)
|
|
end
|
|
|
|
def home(account)
|
|
Status.where(account: [account] + account.following)
|
|
end
|
|
|
|
def mentions(account)
|
|
Status.where(id: Mention.where(account: account).pluck(:status_id))
|
|
end
|
|
|
|
def key(type, id)
|
|
"feed:#{type}:#{id}"
|
|
end
|
|
|
|
def redis
|
|
$redis
|
|
end
|
|
end
|