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37 lines
947 B
Ruby
37 lines
947 B
Ruby
require 'ipaddr'
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class View < ActiveRecord::Base
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belongs_to :parent, polymorphic: true
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belongs_to :user
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validates_presence_of :parent_type, :parent_id, :ip, :viewed_at
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# TODO: This could happen asyncronously
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def self.create_for(parent, ip, user=nil)
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# Only store a view once per day per thing per user per ip
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redis_key = "view:#{parent.class.name}:#{parent.id}:#{Date.today.to_s}"
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if user.present?
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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 $redis.setnx(redis_key, "1")
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$redis.expire(redis_key, 1.day.to_i)
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View.transaction do
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view = View.create(parent: parent, ip: IPAddr.new(ip).to_i, viewed_at: Date.today, user: user)
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# Update the views count in the parent, if it exists.
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if parent.respond_to?(:views)
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parent.class.update_all 'views = views + 1', ['id = ?', parent.id]
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end
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end
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end
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end
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end
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