discourse/app/models/application_request.rb
David Taylor 303f97ce89
PERF: Use native postgres upsert for ApplicationRequest (#20706)
Using `create_or_find_by!`, followed by `update_all!` requires two or three queries (two when the row doesn't already exist, three when it does). Instead, we can use postgres's native `INSERT ... ON CONFLICT ... DO UPDATE SET` feature to do the logic in a single atomic call.
2023-03-17 09:35:29 +00:00

72 lines
1.7 KiB
Ruby

# frozen_string_literal: true
class ApplicationRequest < ActiveRecord::Base
enum req_type: %i[
http_total
http_2xx
http_background
http_3xx
http_4xx
http_5xx
page_view_crawler
page_view_logged_in
page_view_anon
page_view_logged_in_mobile
page_view_anon_mobile
api
user_api
]
include CachedCounting
def self.disable
@disabled = true
end
def self.enable
@disabled = false
end
def self.increment!(req_type)
return if @disabled
perform_increment!(req_type)
end
def self.write_cache!(req_type, count, date)
req_type_id = req_types[req_type]
DB.exec(<<~SQL, date: date, req_type_id: req_type_id, count: count)
INSERT INTO application_requests (date, req_type, count)
VALUES (:date, :req_type_id, :count)
ON CONFLICT (date, req_type)
DO UPDATE SET count = application_requests.count + excluded.count
SQL
end
def self.stats
s = HashWithIndifferentAccess.new({})
self.req_types.each do |key, i|
query = self.where(req_type: i)
s["#{key}_total"] = query.sum(:count)
s["#{key}_30_days"] = query.where("date > ?", 30.days.ago).sum(:count)
s["#{key}_7_days"] = query.where("date > ?", 7.days.ago).sum(:count)
end
s
end
end
# == Schema Information
#
# Table name: application_requests
#
# id :integer not null, primary key
# date :date not null
# req_type :integer not null
# count :integer default(0), not null
#
# Indexes
#
# index_application_requests_on_date_and_req_type (date,req_type) UNIQUE
#