340 lines
12 KiB
Ruby
340 lines
12 KiB
Ruby
# frozen_string_literal: true
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class UserStat < ActiveRecord::Base
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belongs_to :user
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after_save :trigger_badges
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# TODO(2021-05-13): Remove
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self.ignored_columns = ["topic_reply_count"]
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def self.ensure_consistency!(last_seen = 1.hour.ago)
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reset_bounce_scores
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update_distinct_badge_count
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update_view_counts(last_seen)
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update_first_unread(last_seen)
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update_first_unread_pm(last_seen)
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end
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UPDATE_UNREAD_MINUTES_AGO = 10
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UPDATE_UNREAD_USERS_LIMIT = 10_000
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def self.update_first_unread_pm(last_seen, limit: UPDATE_UNREAD_USERS_LIMIT)
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DB.exec(<<~SQL, archetype: Archetype.private_message, now: UPDATE_UNREAD_MINUTES_AGO.minutes.ago, last_seen: last_seen, limit: limit)
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UPDATE user_stats us
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SET first_unread_pm_at = COALESCE(Z.min_date, :now)
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FROM (
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SELECT
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u1.id user_id,
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X.min_date
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FROM users u1
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LEFT JOIN (
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SELECT
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tau.user_id,
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MIN(t.updated_at) min_date
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FROM topic_allowed_users tau
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INNER JOIN topics t ON t.id = tau.topic_id
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INNER JOIN users u ON u.id = tau.user_id
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LEFT JOIN topic_users tu ON t.id = tu.topic_id AND tu.user_id = tau.user_id
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WHERE t.deleted_at IS NULL
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AND t.archetype = :archetype
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AND tu.last_read_post_number < CASE
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WHEN u.admin OR u.moderator
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THEN t.highest_staff_post_number
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ELSE t.highest_post_number
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END
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AND (COALESCE(tu.notification_level, 1) >= 2)
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AND tau.user_id IN (
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SELECT id
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FROM users
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WHERE last_seen_at IS NOT NULL
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AND last_seen_at > :last_seen
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ORDER BY last_seen_at DESC
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LIMIT :limit
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)
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GROUP BY tau.user_id
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) AS X ON X.user_id = u1.id
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WHERE u1.id IN (
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SELECT id
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FROM users
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WHERE last_seen_at IS NOT NULL
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AND last_seen_at > :last_seen
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ORDER BY last_seen_at DESC
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LIMIT :limit
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)
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) AS Z
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WHERE us.user_id = Z.user_id
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SQL
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end
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def self.update_first_unread(last_seen, limit: UPDATE_UNREAD_USERS_LIMIT)
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DB.exec(<<~SQL, min_date: last_seen, limit: limit, now: UPDATE_UNREAD_MINUTES_AGO.minutes.ago)
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UPDATE user_stats us
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SET first_unread_at = COALESCE(Y.min_date, :now)
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FROM (
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SELECT u1.id user_id,
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X.min min_date
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FROM users u1
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LEFT JOIN
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(SELECT u.id AS user_id,
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min(topics.updated_at) min
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FROM users u
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LEFT JOIN topic_users tu ON tu.user_id = u.id
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LEFT JOIN topics ON tu.topic_id = topics.id
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JOIN user_stats AS us ON us.user_id = u.id
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JOIN user_options AS uo ON uo.user_id = u.id
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JOIN categories c ON c.id = topics.category_id
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WHERE u.id IN (
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SELECT id
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FROM users
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WHERE last_seen_at IS NOT NULL
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AND last_seen_at > :min_date
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ORDER BY last_seen_at DESC
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LIMIT :limit
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)
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AND topics.archetype <> 'private_message'
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AND (("topics"."deleted_at" IS NULL
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AND tu.last_read_post_number < CASE
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WHEN u.admin
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OR u.moderator THEN topics.highest_staff_post_number
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ELSE topics.highest_post_number
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END
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AND COALESCE(tu.notification_level, 1) >= 2)
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OR (1=0))
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AND (topics.visible
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OR u.admin
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OR u.moderator)
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AND topics.deleted_at IS NULL
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AND (NOT c.read_restricted
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OR u.admin
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OR category_id IN
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(SELECT c2.id
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FROM categories c2
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JOIN category_groups cg ON cg.category_id = c2.id
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JOIN group_users gu ON gu.user_id = u.id
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AND cg.group_id = gu.group_id
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WHERE c2.read_restricted ))
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AND NOT EXISTS
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(SELECT 1
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FROM category_users cu
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WHERE last_read_post_number IS NULL
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AND cu.user_id = u.id
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AND cu.category_id = topics.category_id
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AND cu.notification_level = 0)
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GROUP BY u.id,
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u.username) AS X ON X.user_id = u1.id
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WHERE u1.id IN
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(
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SELECT id
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FROM users
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WHERE last_seen_at IS NOT NULL
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AND last_seen_at > :min_date
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ORDER BY last_seen_at DESC
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LIMIT :limit
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)
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) Y
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WHERE Y.user_id = us.user_id
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SQL
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end
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def self.reset_bounce_scores
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UserStat.where("reset_bounce_score_after < now()")
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.where("bounce_score > 0")
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.update_all(bounce_score: 0)
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end
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# Updates the denormalized view counts for all users
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def self.update_view_counts(last_seen = 1.hour.ago)
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# NOTE: we only update the counts for users we have seen in the last hour
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# this avoids a very expensive query that may run on the entire user base
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# we also ensure we only touch the table if data changes
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# Update denormalized topics_entered
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DB.exec(<<~SQL, seen_at: last_seen)
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UPDATE user_stats SET topics_entered = X.c
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FROM
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(SELECT v.user_id, COUNT(topic_id) AS c
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FROM topic_views AS v
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WHERE v.user_id IN (
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SELECT u1.id FROM users u1 where u1.last_seen_at > :seen_at
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)
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GROUP BY v.user_id) AS X
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WHERE
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X.user_id = user_stats.user_id AND
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X.c <> topics_entered
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SQL
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# Update denormalized posts_read_count
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DB.exec(<<~SQL, seen_at: last_seen)
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UPDATE user_stats SET posts_read_count = X.c
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FROM
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(SELECT pt.user_id,
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COUNT(*) AS c
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FROM users AS u
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JOIN post_timings AS pt ON pt.user_id = u.id
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JOIN topics t ON t.id = pt.topic_id
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WHERE u.last_seen_at > :seen_at AND
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t.archetype = 'regular' AND
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t.deleted_at IS NULL
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GROUP BY pt.user_id) AS X
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WHERE X.user_id = user_stats.user_id AND
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X.c <> posts_read_count
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SQL
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end
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def self.update_distinct_badge_count(user_id = nil)
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sql = <<~SQL
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UPDATE user_stats
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SET distinct_badge_count = x.distinct_badge_count
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FROM (
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SELECT users.id user_id, COUNT(distinct user_badges.badge_id) distinct_badge_count
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FROM users
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LEFT JOIN user_badges ON user_badges.user_id = users.id
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AND (user_badges.badge_id IN (SELECT id FROM badges WHERE enabled))
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GROUP BY users.id
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) x
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WHERE user_stats.user_id = x.user_id AND user_stats.distinct_badge_count <> x.distinct_badge_count
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SQL
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sql = sql + " AND user_stats.user_id = #{user_id.to_i}" if user_id
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DB.exec sql
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end
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def update_distinct_badge_count
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self.class.update_distinct_badge_count(self.user_id)
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end
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def self.update_draft_count(user_id = nil)
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if user_id.present?
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draft_count = DB.query_single <<~SQL, user_id: user_id
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UPDATE user_stats
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SET draft_count = (SELECT COUNT(*) FROM drafts WHERE user_id = :user_id)
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WHERE user_id = :user_id
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RETURNING draft_count
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SQL
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MessageBus.publish(
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'/user',
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{ draft_count: draft_count.first },
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user_ids: [user_id]
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)
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else
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DB.exec <<~SQL
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UPDATE user_stats
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SET draft_count = new_user_stats.draft_count
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FROM (SELECT user_stats.user_id, COUNT(drafts.id) draft_count
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FROM user_stats
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LEFT JOIN drafts ON user_stats.user_id = drafts.user_id
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GROUP BY user_stats.user_id) new_user_stats
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WHERE user_stats.user_id = new_user_stats.user_id
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AND user_stats.draft_count <> new_user_stats.draft_count
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SQL
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end
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end
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# topic_reply_count is a count of posts in other users' topics
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def calc_topic_reply_count!(start_time = nil)
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sql = <<~SQL
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SELECT COUNT(DISTINCT posts.topic_id) AS count
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FROM posts
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INNER JOIN topics ON topics.id = posts.topic_id
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WHERE posts.user_id = ?
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AND topics.user_id <> posts.user_id
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AND posts.deleted_at IS NULL AND topics.deleted_at IS NULL
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AND topics.archetype <> 'private_message'
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#{start_time.nil? ? '' : 'AND posts.created_at > ?'}
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SQL
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if start_time.nil?
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DB.query_single(sql, self.user_id).first
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else
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DB.query_single(sql, self.user_id, start_time).first
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end
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end
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def any_posts
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user.posts.exists?
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end
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MAX_TIME_READ_DIFF = 100
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# attempt to add total read time to user based on previous time this was called
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def self.update_time_read!(id)
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if last_seen = last_seen_cached(id)
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diff = (Time.now.to_f - last_seen.to_f).round
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if diff > 0 && diff < MAX_TIME_READ_DIFF
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update_args = ["time_read = time_read + ?", diff]
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UserStat.where(user_id: id).update_all(update_args)
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UserVisit.where(user_id: id, visited_at: Time.zone.now.to_date).update_all(update_args)
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end
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end
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cache_last_seen(id, Time.now.to_f)
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end
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def update_time_read!
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UserStat.update_time_read!(id)
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end
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def reset_bounce_score!
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update_columns(reset_bounce_score_after: nil, bounce_score: 0)
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end
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def self.last_seen_key(id)
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# frozen
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-"user-last-seen:#{id}"
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end
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def self.last_seen_cached(id)
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Discourse.redis.get(last_seen_key(id))
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end
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def self.cache_last_seen(id, val)
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Discourse.redis.setex(last_seen_key(id), MAX_TIME_READ_DIFF, val)
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end
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def update_pending_posts
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update(pending_posts_count: user.pending_posts.count)
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MessageBus.publish(
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"/u/#{user.username_lower}/counters",
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{ pending_posts_count: pending_posts_count },
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user_ids: [user.id],
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group_ids: [Group::AUTO_GROUPS[:staff]]
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)
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end
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protected
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def trigger_badges
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BadgeGranter.queue_badge_grant(Badge::Trigger::UserChange, user: self.user)
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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: user_stats
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#
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# user_id :integer not null, primary key
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# topics_entered :integer default(0), not null
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# time_read :integer default(0), not null
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# days_visited :integer default(0), not null
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# posts_read_count :integer default(0), not null
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# likes_given :integer default(0), not null
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# likes_received :integer default(0), not null
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# new_since :datetime not null
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# read_faq :datetime
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# first_post_created_at :datetime
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# post_count :integer default(0), not null
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# topic_count :integer default(0), not null
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# bounce_score :float default(0.0), not null
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# reset_bounce_score_after :datetime
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# flags_agreed :integer default(0), not null
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# flags_disagreed :integer default(0), not null
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# flags_ignored :integer default(0), not null
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# first_unread_at :datetime not null
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# distinct_badge_count :integer default(0), not null
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# first_unread_pm_at :datetime not null
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# digest_attempted_at :datetime
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# post_edits_count :integer
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# draft_count :integer default(0), not null
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# pending_posts_count :integer default(0), not null
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#
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