discourse/app/models/web_crawler_request.rb

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# frozen_string_literal: true
class WebCrawlerRequest < ActiveRecord::Base
include CachedCounting
cattr_accessor :max_record_age, :max_records_per_day
# only keep the top records based on request count
self.max_records_per_day = 200
# delete records older than this
self.max_record_age = 30.days
def self.increment!(user_agent)
perform_increment!(user_agent)
end
def self.write_cache!(user_agent, count, date)
where(id: request_id(date: date, user_agent: user_agent)).update_all(
["count = count + ?", count],
)
end
protected
def self.request_id(date:, user_agent:, retries: 0)
id = where(date: date, user_agent: user_agent).pick(:id)
id ||= create!({ date: date, user_agent: user_agent }.merge(count: 0)).id
rescue StandardError # primary key violation
if retries == 0
request_id(date: date, user_agent: user_agent, retries: 1)
else
raise
end
end
end
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# == Schema Information
#
# Table name: web_crawler_requests
#
# id :bigint not null, primary key
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# date :date not null
# user_agent :string not null
# count :integer default(0), not null
#
# Indexes
#
# index_web_crawler_requests_on_date_and_user_agent (date,user_agent) UNIQUE
#