427 lines
16 KiB
Ruby
427 lines
16 KiB
Ruby
class TopicUser < ActiveRecord::Base
|
|
belongs_to :user
|
|
belongs_to :topic
|
|
|
|
# used for serialization
|
|
attr_accessor :post_action_data
|
|
|
|
scope :tracking, lambda { |topic_id|
|
|
where(topic_id: topic_id)
|
|
.where("COALESCE(topic_users.notification_level, :regular) >= :tracking",
|
|
regular: TopicUser.notification_levels[:regular],
|
|
tracking: TopicUser.notification_levels[:tracking])
|
|
}
|
|
|
|
# Class methods
|
|
class << self
|
|
|
|
# Enums
|
|
def notification_levels
|
|
@notification_levels ||= Enum.new(muted: 0,
|
|
regular: 1,
|
|
tracking: 2,
|
|
watching: 3)
|
|
end
|
|
|
|
def notification_reasons
|
|
@notification_reasons ||= Enum.new(created_topic: 1,
|
|
user_changed: 2,
|
|
user_interacted: 3,
|
|
created_post: 4,
|
|
auto_watch: 5,
|
|
auto_watch_category: 6,
|
|
auto_mute_category: 7,
|
|
auto_track_category: 8,
|
|
plugin_changed: 9,
|
|
auto_watch_tag: 10,
|
|
auto_mute_tag: 11,
|
|
auto_track_tag: 12)
|
|
end
|
|
|
|
def auto_track(user_id, topic_id, reason)
|
|
if TopicUser.where(user_id: user_id, topic_id: topic_id, notifications_reason_id: nil).exists?
|
|
change(user_id, topic_id,
|
|
notification_level: notification_levels[:tracking],
|
|
notifications_reason_id: reason
|
|
)
|
|
|
|
MessageBus.publish("/topic/#{topic_id}", {
|
|
notification_level_change: notification_levels[:tracking],
|
|
notifications_reason_id: reason
|
|
}, user_ids: [user_id])
|
|
end
|
|
end
|
|
|
|
def auto_watch(user_id, topic_id)
|
|
topic_user = TopicUser.find_or_initialize_by(user_id: user_id, topic_id: topic_id)
|
|
topic_user.notification_level = notification_levels[:watching]
|
|
topic_user.notifications_reason_id = notification_reasons[:auto_watch]
|
|
topic_user.save
|
|
end
|
|
|
|
def unwatch_categories!(user, category_ids)
|
|
|
|
track_threshold = user.user_option.auto_track_topics_after_msecs
|
|
|
|
sql = <<SQL
|
|
UPDATE topic_users tu
|
|
SET notification_level = CASE
|
|
WHEN t.user_id = :user_id THEN :watching
|
|
WHEN total_msecs_viewed > :track_threshold AND :track_threshold >= 0 THEN :tracking
|
|
ELSE :regular
|
|
end
|
|
FROM topics t
|
|
WHERE t.id = tu.topic_id AND tu.notification_level <> :muted AND category_id IN (:category_ids) AND tu.user_id = :user_id
|
|
SQL
|
|
|
|
exec_sql(sql,
|
|
watching: notification_levels[:watching],
|
|
tracking: notification_levels[:tracking],
|
|
regular: notification_levels[:regular],
|
|
muted: notification_levels[:muted],
|
|
category_ids: category_ids,
|
|
user_id: user.id,
|
|
track_threshold: track_threshold
|
|
)
|
|
end
|
|
|
|
# Find the information specific to a user in a forum topic
|
|
def lookup_for(user, topics)
|
|
# If the user isn't logged in, there's no last read posts
|
|
return {} if user.blank? || topics.blank?
|
|
|
|
topic_ids = topics.map(&:id)
|
|
create_lookup(TopicUser.where(topic_id: topic_ids, user_id: user.id))
|
|
end
|
|
|
|
def create_lookup(topic_users)
|
|
topic_users = topic_users.to_a
|
|
result = {}
|
|
return result if topic_users.blank?
|
|
topic_users.each { |ftu| result[ftu.topic_id] = ftu }
|
|
result
|
|
end
|
|
|
|
def get(topic, user)
|
|
topic = topic.id if topic.is_a?(Topic)
|
|
user = user.id if user.is_a?(User)
|
|
TopicUser.find_by(topic_id: topic, user_id: user)
|
|
end
|
|
|
|
# Change attributes for a user (creates a record when none is present). First it tries an update
|
|
# since there's more likely to be an existing record than not. If the update returns 0 rows affected
|
|
# it then creates the row instead.
|
|
def change(user_id, topic_id, attrs)
|
|
# Sometimes people pass objs instead of the ids. We can handle that.
|
|
topic_id = topic_id.id if topic_id.is_a?(::Topic)
|
|
user_id = user_id.id if user_id.is_a?(::User)
|
|
|
|
topic_id = topic_id.to_i
|
|
user_id = user_id.to_i
|
|
|
|
TopicUser.transaction do
|
|
attrs = attrs.dup
|
|
if attrs[:notification_level]
|
|
attrs[:notifications_changed_at] ||= DateTime.now
|
|
attrs[:notifications_reason_id] ||= TopicUser.notification_reasons[:user_changed]
|
|
end
|
|
attrs_array = attrs.to_a
|
|
|
|
attrs_sql = attrs_array.map { |t| "#{t[0]} = ?" }.join(", ")
|
|
vals = attrs_array.map { |t| t[1] }
|
|
rows = TopicUser.where(topic_id: topic_id, user_id: user_id).update_all([attrs_sql, *vals])
|
|
|
|
if rows == 0
|
|
now = DateTime.now
|
|
auto_track_after = UserOption.where(user_id: user_id).pluck(:auto_track_topics_after_msecs).first
|
|
auto_track_after ||= SiteSetting.default_other_auto_track_topics_after_msecs
|
|
|
|
if auto_track_after >= 0 && auto_track_after <= (attrs[:total_msecs_viewed].to_i || 0)
|
|
attrs[:notification_level] ||= notification_levels[:tracking]
|
|
end
|
|
|
|
TopicUser.create(attrs.merge!(user_id: user_id, topic_id: topic_id, first_visited_at: now ,last_visited_at: now))
|
|
else
|
|
observe_after_save_callbacks_for topic_id, user_id
|
|
end
|
|
end
|
|
|
|
if attrs[:notification_level]
|
|
MessageBus.publish("/topic/#{topic_id}", { notification_level_change: attrs[:notification_level] }, user_ids: [user_id])
|
|
end
|
|
|
|
rescue ActiveRecord::RecordNotUnique
|
|
# In case of a race condition to insert, do nothing
|
|
end
|
|
|
|
def track_visit!(topic_id, user_id)
|
|
now = DateTime.now
|
|
rows = TopicUser.where(topic_id: topic_id, user_id: user_id).update_all(last_visited_at: now)
|
|
|
|
if rows == 0
|
|
TopicUser.create(topic_id: topic_id, user_id: user_id, last_visited_at: now, first_visited_at: now)
|
|
else
|
|
observe_after_save_callbacks_for(topic_id, user_id)
|
|
end
|
|
end
|
|
|
|
# Update the last read and the last seen post count, but only if it doesn't exist.
|
|
# This would be a lot easier if psql supported some kind of upsert
|
|
UPDATE_TOPIC_USER_SQL = "UPDATE topic_users
|
|
SET
|
|
last_read_post_number = GREATEST(:post_number, tu.last_read_post_number),
|
|
highest_seen_post_number = t.highest_post_number,
|
|
total_msecs_viewed = LEAST(tu.total_msecs_viewed + :msecs,86400000),
|
|
notification_level =
|
|
case when tu.notifications_reason_id is null and (tu.total_msecs_viewed + :msecs) >
|
|
coalesce(uo.auto_track_topics_after_msecs,:threshold) and
|
|
coalesce(uo.auto_track_topics_after_msecs, :threshold) >= 0 then
|
|
:tracking
|
|
else
|
|
tu.notification_level
|
|
end
|
|
FROM topic_users tu
|
|
join topics t on t.id = tu.topic_id
|
|
join users u on u.id = :user_id
|
|
join user_options uo on uo.user_id = :user_id
|
|
WHERE
|
|
tu.topic_id = topic_users.topic_id AND
|
|
tu.user_id = topic_users.user_id AND
|
|
tu.topic_id = :topic_id AND
|
|
tu.user_id = :user_id
|
|
RETURNING
|
|
topic_users.notification_level, tu.notification_level old_level, tu.last_read_post_number
|
|
"
|
|
|
|
INSERT_TOPIC_USER_SQL = "INSERT INTO topic_users (user_id, topic_id, last_read_post_number, highest_seen_post_number, last_visited_at, first_visited_at, notification_level)
|
|
SELECT :user_id, :topic_id, :post_number, ft.highest_post_number, :now, :now, :new_status
|
|
FROM topics AS ft
|
|
JOIN users u on u.id = :user_id
|
|
WHERE ft.id = :topic_id
|
|
AND NOT EXISTS(SELECT 1
|
|
FROM topic_users AS ftu
|
|
WHERE ftu.user_id = :user_id and ftu.topic_id = :topic_id)"
|
|
|
|
def update_last_read(user, topic_id, post_number, msecs, opts={})
|
|
return if post_number.blank?
|
|
msecs = 0 if msecs.to_i < 0
|
|
|
|
args = {
|
|
user_id: user.id,
|
|
topic_id: topic_id,
|
|
post_number: post_number,
|
|
now: DateTime.now,
|
|
msecs: msecs,
|
|
tracking: notification_levels[:tracking],
|
|
threshold: SiteSetting.default_other_auto_track_topics_after_msecs
|
|
}
|
|
|
|
# In case anyone seens "highest_seen_post_number" and gets confused, like I do.
|
|
# highest_seen_post_number represents the highest_post_number of the topic when
|
|
# the user visited it. It may be out of alignment with last_read, meaning
|
|
# ... user visited the topic but did not read the posts
|
|
#
|
|
# 86400000 = 1 day
|
|
rows = exec_sql(UPDATE_TOPIC_USER_SQL,args).values
|
|
|
|
if rows.length == 1
|
|
before = rows[0][1].to_i
|
|
after = rows[0][0].to_i
|
|
|
|
before_last_read = rows[0][2].to_i
|
|
|
|
if before_last_read < post_number
|
|
# The user read at least one new post
|
|
TopicTrackingState.publish_read(topic_id, post_number, user.id, after)
|
|
user.update_posts_read!(post_number - before_last_read, mobile: opts[:mobile])
|
|
end
|
|
|
|
if before != after
|
|
MessageBus.publish("/topic/#{topic_id}", { notification_level_change: after }, user_ids: [user.id])
|
|
end
|
|
end
|
|
|
|
if rows.length == 0
|
|
# The user read at least one post in a topic that they haven't viewed before.
|
|
args[:new_status] = notification_levels[:regular]
|
|
if (user.user_option.auto_track_topics_after_msecs || SiteSetting.default_other_auto_track_topics_after_msecs) == 0
|
|
args[:new_status] = notification_levels[:tracking]
|
|
end
|
|
TopicTrackingState.publish_read(topic_id, post_number, user.id, args[:new_status])
|
|
|
|
user.update_posts_read!(post_number, mobile: opts[:mobile])
|
|
|
|
begin
|
|
exec_sql(INSERT_TOPIC_USER_SQL, args)
|
|
rescue PG::UniqueViolation
|
|
# if record is inserted between two statements this can happen
|
|
# we retry once to avoid failing the req
|
|
if opts[:retry]
|
|
raise
|
|
else
|
|
opts[:retry] = true
|
|
update_last_read(user, topic_id, post_number, msecs, opts)
|
|
end
|
|
end
|
|
|
|
MessageBus.publish("/topic/#{topic_id}", { notification_level_change: args[:new_status] }, user_ids: [user.id])
|
|
end
|
|
end
|
|
|
|
def observe_after_save_callbacks_for(topic_id, user_id)
|
|
TopicUser.where(topic_id: topic_id, user_id: user_id).each do |topic_user|
|
|
UserActionObserver.instance.after_save topic_user
|
|
end
|
|
end
|
|
end
|
|
|
|
def self.update_post_action_cache(opts={})
|
|
user_id = opts[:user_id]
|
|
post_id = opts[:post_id]
|
|
topic_id = opts[:topic_id]
|
|
action_type = opts[:post_action_type]
|
|
|
|
action_type_name = "liked" if action_type == :like
|
|
action_type_name = "bookmarked" if action_type == :bookmark
|
|
|
|
raise ArgumentError, "action_type" if action_type && !action_type_name
|
|
|
|
unless action_type_name
|
|
update_post_action_cache(opts.merge(post_action_type: :like))
|
|
update_post_action_cache(opts.merge(post_action_type: :bookmark))
|
|
return
|
|
end
|
|
|
|
builder = SqlBuilder.new <<SQL
|
|
UPDATE topic_users tu
|
|
SET #{action_type_name} = x.state
|
|
FROM (
|
|
SELECT CASE WHEN EXISTS (
|
|
SELECT 1
|
|
FROM post_actions pa
|
|
JOIN posts p on p.id = pa.post_id
|
|
JOIN topics t ON t.id = p.topic_id
|
|
WHERE pa.deleted_at IS NULL AND
|
|
p.deleted_at IS NULL AND
|
|
t.deleted_at IS NULL AND
|
|
pa.post_action_type_id = :action_type_id AND
|
|
tu2.topic_id = t.id AND
|
|
tu2.user_id = pa.user_id
|
|
LIMIT 1
|
|
) THEN true ELSE false END state, tu2.topic_id, tu2.user_id
|
|
FROM topic_users tu2
|
|
/*where*/
|
|
) x
|
|
WHERE x.topic_id = tu.topic_id AND x.user_id = tu.user_id AND x.state != tu.#{action_type_name}
|
|
SQL
|
|
|
|
if user_id
|
|
builder.where("tu2.user_id = :user_id", user_id: user_id)
|
|
end
|
|
|
|
if topic_id
|
|
builder.where("tu2.topic_id = :topic_id", topic_id: topic_id)
|
|
end
|
|
|
|
if post_id
|
|
builder.where("tu2.topic_id IN (SELECT topic_id FROM posts WHERE id = :post_id)", post_id: post_id)
|
|
builder.where("tu2.user_id IN (SELECT user_id FROM post_actions
|
|
WHERE post_id = :post_id AND
|
|
post_action_type_id = :action_type_id)")
|
|
end
|
|
|
|
builder.exec(action_type_id: PostActionType.types[action_type])
|
|
end
|
|
|
|
# cap number of unread topics at count, bumping up highest_seen / last_read if needed
|
|
def self.cap_unread!(user_id, count)
|
|
sql = <<SQL
|
|
UPDATE topic_users tu
|
|
SET last_read_post_number = max_number,
|
|
highest_seen_post_number = max_number
|
|
FROM (
|
|
SELECT MAX(post_number) max_number, p.topic_id FROM posts p
|
|
WHERE deleted_at IS NULL
|
|
GROUP BY p.topic_id
|
|
) m
|
|
WHERE tu.user_id = :user_id AND
|
|
m.topic_id = tu.topic_id AND
|
|
tu.topic_id IN (
|
|
#{TopicTrackingState.report_raw_sql(skip_new: true, select: "topics.id")}
|
|
offset :count
|
|
)
|
|
SQL
|
|
|
|
TopicUser.exec_sql(sql, user_id: user_id, count: count)
|
|
end
|
|
|
|
def self.ensure_consistency!(topic_id=nil)
|
|
update_post_action_cache(topic_id: topic_id)
|
|
|
|
# TODO this needs some reworking, when we mark stuff skipped
|
|
# we up these numbers so they are not in-sync
|
|
# the simple fix is to add a column here, but table is already quite big
|
|
# long term we want to split up topic_users and allow for this better
|
|
builder = SqlBuilder.new <<SQL
|
|
|
|
UPDATE topic_users t
|
|
SET
|
|
last_read_post_number = LEAST(GREATEST(last_read, last_read_post_number), max_post_number),
|
|
highest_seen_post_number = LEAST(max_post_number,GREATEST(t.highest_seen_post_number, last_read))
|
|
FROM (
|
|
SELECT topic_id, user_id, MAX(post_number) last_read
|
|
FROM post_timings
|
|
GROUP BY topic_id, user_id
|
|
) as X
|
|
JOIN (
|
|
SELECT p.topic_id, MAX(p.post_number) max_post_number from posts p
|
|
GROUP BY p.topic_id
|
|
) as Y on Y.topic_id = X.topic_id
|
|
/*where*/
|
|
SQL
|
|
|
|
builder.where <<SQL
|
|
X.topic_id = t.topic_id AND
|
|
X.user_id = t.user_id AND
|
|
(
|
|
last_read_post_number <> LEAST(GREATEST(last_read, last_read_post_number), max_post_number) OR
|
|
highest_seen_post_number <> LEAST(max_post_number,GREATEST(t.highest_seen_post_number, last_read))
|
|
)
|
|
SQL
|
|
|
|
if topic_id
|
|
builder.where("t.topic_id = :topic_id", topic_id: topic_id)
|
|
end
|
|
|
|
builder.exec
|
|
end
|
|
|
|
end
|
|
|
|
# == Schema Information
|
|
#
|
|
# Table name: topic_users
|
|
#
|
|
# user_id :integer not null
|
|
# topic_id :integer not null
|
|
# posted :boolean default(FALSE), not null
|
|
# last_read_post_number :integer
|
|
# highest_seen_post_number :integer
|
|
# last_visited_at :datetime
|
|
# first_visited_at :datetime
|
|
# notification_level :integer default(1), not null
|
|
# notifications_changed_at :datetime
|
|
# notifications_reason_id :integer
|
|
# total_msecs_viewed :integer default(0), not null
|
|
# cleared_pinned_at :datetime
|
|
# id :integer not null, primary key
|
|
# last_emailed_post_number :integer
|
|
# liked :boolean default(FALSE)
|
|
# bookmarked :boolean default(FALSE)
|
|
#
|
|
# Indexes
|
|
#
|
|
# index_topic_users_on_topic_id_and_user_id (topic_id,user_id) UNIQUE
|
|
# index_topic_users_on_user_id_and_topic_id (user_id,topic_id) UNIQUE
|
|
#
|