app/models/feed.rb

   1 # frozen_string_literal: true
   2
   3 class Feed
   4   include Redisable
   5
   6   def initialize(type, id)
   7     @type = type
   8     @id   = id
   9   end
  10
  11   def get(limit, max_id = nil, since_id = nil, min_id = nil)
  12     limit    = limit.to_i
  13     max_id   = max_id.to_i if max_id.present?
  14     since_id = since_id.to_i if since_id.present?
  15     min_id   = min_id.to_i if min_id.present?
  16
  17     from_redis(limit, max_id, since_id, min_id)
  18   end
  19
  20   protected
  21
  22   def from_redis(limit, max_id, since_id, min_id)
  23     max_id = '+inf' if max_id.blank?
  24     if min_id.blank?
  25       since_id   = '-inf' if since_id.blank?
  26       unhydrated = redis.zrevrangebyscore(key, "(#{max_id}", "(#{since_id}", limit: [0, limit], with_scores: true).map(&:first).map(&:to_i)
  27     else
  28       unhydrated = redis.zrangebyscore(key, "(#{min_id}", "(#{max_id}", limit: [0, limit], with_scores: true).map(&:first).map(&:to_i)
  29     end
  30
  31     Status.where(id: unhydrated).cache_ids
  32   end
  33
  34   def key
  35     FeedManager.instance.key(@type, @id)
  36   end
  37 end