diff options
Diffstat (limited to 'app/models/trending_tags.rb')
| -rw-r--r-- | app/models/trending_tags.rb | 23 |
1 files changed, 1 insertions, 22 deletions
diff --git a/app/models/trending_tags.rb b/app/models/trending_tags.rb index eedd92644..c3641d7fd 100644 --- a/app/models/trending_tags.rb +++ b/app/models/trending_tags.rb @@ -1,33 +1,18 @@ # frozen_string_literal: true class TrendingTags - KEY = 'trending_tags' - HALF_LIFE = 1.day.to_i - MAX_ITEMS = 500 EXPIRE_HISTORY_AFTER = 7.days.seconds class << self def record_use!(tag, account, at_time = Time.now.utc) - return if disallowed_hashtags.include?(tag.name) || account.silenced? + return if disallowed_hashtags.include?(tag.name) || account.silenced? || account.bot? - increment_vote!(tag.id, at_time) increment_historical_use!(tag.id, at_time) increment_unique_use!(tag.id, account.id, at_time) end - def get(limit) - tag_ids = redis.zrevrange(KEY, 0, limit).map(&:to_i) - tags = Tag.where(id: tag_ids).to_a.map { |tag| [tag.id, tag] }.to_h - tag_ids.map { |tag_id| tags[tag_id] }.compact - end - private - def increment_vote!(tag_id, at_time) - redis.zincrby(KEY, (2**((at_time.to_i - epoch) / HALF_LIFE)).to_f, tag_id.to_s) - redis.zremrangebyrank(KEY, 0, -MAX_ITEMS) if rand < (2.to_f / MAX_ITEMS) - end - def increment_historical_use!(tag_id, at_time) key = "activity:tags:#{tag_id}:#{at_time.beginning_of_day.to_i}" redis.incrby(key, 1) @@ -40,12 +25,6 @@ class TrendingTags redis.expire(key, EXPIRE_HISTORY_AFTER) end - # The epoch needs to be 2.5 years in the future if the half-life is one day - # While dynamic, it will always be the same within one year - def epoch - @epoch ||= Date.new(Date.current.year + 2.5, 10, 1).to_datetime.to_i - end - def disallowed_hashtags return @disallowed_hashtags if defined?(@disallowed_hashtags) |