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