require 'ipaddr' # awkward TopicView is taken class TopicViewItem < ActiveRecord::Base self.table_name = 'topic_views' belongs_to :user validates_presence_of :topic_id, :ip_address, :viewed_at def self.add(topic_id, ip, user_id = nil, at = nil, skip_redis = false) # Only store a view once per day per thing per (user || ip) at ||= Date.today redis_key = "view:#{topic_id}:#{at}" if user_id redis_key << ":user-#{user_id}" else redis_key << ":ip-#{ip}" end if skip_redis || $redis.setnx(redis_key, "1") skip_redis || $redis.expire(redis_key, SiteSetting.topic_view_duration_hours.hours) TopicViewItem.transaction do # this is called real frequently, working hard to avoid exceptions sql = "INSERT INTO topic_views (topic_id, ip_address, viewed_at, user_id) SELECT :topic_id, :ip_address, :viewed_at, :user_id WHERE NOT EXISTS ( SELECT 1 FROM topic_views /*where*/ )" builder = DB.build(sql) if !user_id builder.where("ip_address = :ip_address AND topic_id = :topic_id AND user_id IS NULL") else builder.where("user_id = :user_id AND topic_id = :topic_id") ip = nil # do not store IP of logged in users end result = builder.exec(topic_id: topic_id, ip_address: ip, viewed_at: at, user_id: user_id) Topic.where(id: topic_id).update_all 'views = views + 1' if result > 0 UserStat.where(user_id: user_id).update_all 'topics_entered = topics_entered + 1' if user_id end # Update the views count in the parent, if it exists. end end end end # == Schema Information # # Table name: topic_views # # topic_id :integer not null # viewed_at :date not null # user_id :integer # ip_address :inet # # Indexes # # index_topic_views_on_topic_id_and_viewed_at (topic_id,viewed_at) # index_topic_views_on_user_id_and_viewed_at (user_id,viewed_at) # index_topic_views_on_viewed_at_and_topic_id (viewed_at,topic_id) # uniq_ip_or_user_id_topic_views (user_id,ip_address,topic_id) UNIQUE #