discourse/app/models/user_visit.rb

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# frozen_string_literal: true
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class UserVisit < ActiveRecord::Base
def self.counts_by_day_query(start_date, end_date, group_id = nil)
result = where("visited_at >= ? and visited_at <= ?", start_date.to_date, end_date.to_date)
if group_id
result = result.joins("INNER JOIN users ON users.id = user_visits.user_id")
result = result.joins("INNER JOIN group_users ON group_users.user_id = users.id")
result = result.where("group_users.group_id = ?", group_id)
end
result.group(:visited_at).order(:visited_at)
end
def self.count_by_active_users(start_date, end_date)
sql = <<~SQL
WITH dau AS (
SELECT date_trunc('day', user_visits.visited_at)::DATE AS date,
count(distinct user_visits.user_id) AS dau
FROM user_visits
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WHERE user_visits.visited_at::DATE >= :start_date::DATE AND user_visits.visited_at <= :end_date::DATE
GROUP BY date_trunc('day', user_visits.visited_at)::DATE
ORDER BY date_trunc('day', user_visits.visited_at)::DATE
)
SELECT date, dau,
(SELECT count(distinct user_visits.user_id)
FROM user_visits
WHERE user_visits.visited_at::DATE BETWEEN dau.date - 29 AND dau.date
) AS mau
FROM dau
SQL
DB.query_hash(sql, start_date: start_date, end_date: end_date)
end
# A count of visits in a date range by day
def self.by_day(start_date, end_date, group_id = nil)
counts_by_day_query(start_date, end_date, group_id).count
end
def self.mobile_by_day(start_date, end_date, group_id = nil)
counts_by_day_query(start_date, end_date, group_id).where(mobile: true).count
end
def self.ensure_consistency!
DB.exec <<~SQL
UPDATE user_stats u set days_visited =
(
SELECT COUNT(*) FROM user_visits v WHERE v.user_id = u.user_id
)
WHERE days_visited <>
(
SELECT COUNT(*) FROM user_visits v WHERE v.user_id = u.user_id
)
SQL
end
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end
# == Schema Information
#
# Table name: user_visits
#
# id :integer not null, primary key
# user_id :integer not null
# visited_at :date not null
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# posts_read :integer default(0)
# mobile :boolean default(FALSE)
# time_read :integer default(0), not null
#
# Indexes
#
# index_user_visits_on_user_id_and_visited_at (user_id,visited_at) UNIQUE
# index_user_visits_on_user_id_and_visited_at_and_time_read (user_id,visited_at,time_read)
# index_user_visits_on_visited_at_and_mobile (visited_at,mobile)
#