discourse/app/models/topic.rb
Sam Saffron 6dd4bc7d57 FEATURE: support group owner, capable of controlling group membership
Group owners are regular users that can add or remove users to a group
The Admin UX allows admins to appoint group owners
The public group UX will display group owners first and unlock UI to
add and remove members

Group owners can only be appointed on non automatic groups
Group owners may not appoint another group owner
2015-11-10 00:56:57 +11:00

1076 lines
36 KiB
Ruby

require_dependency 'slug'
require_dependency 'avatar_lookup'
require_dependency 'topic_view'
require_dependency 'rate_limiter'
require_dependency 'text_sentinel'
require_dependency 'text_cleaner'
require_dependency 'archetype'
require_dependency 'html_prettify'
class Topic < ActiveRecord::Base
include ActionView::Helpers::SanitizeHelper
include RateLimiter::OnCreateRecord
include HasCustomFields
include Trashable
include LimitedEdit
extend Forwardable
def_delegator :featured_users, :user_ids, :featured_user_ids
def_delegator :featured_users, :choose, :feature_topic_users
def_delegator :notifier, :watch!, :notify_watch!
def_delegator :notifier, :tracking!, :notify_tracking!
def_delegator :notifier, :regular!, :notify_regular!
def_delegator :notifier, :muted!, :notify_muted!
def_delegator :notifier, :toggle_mute, :toggle_mute
attr_accessor :allowed_user_ids
def self.max_sort_order
2**31 - 1
end
def featured_users
@featured_users ||= TopicFeaturedUsers.new(self)
end
def trash!(trashed_by=nil)
update_category_topic_count_by(-1) if deleted_at.nil?
super(trashed_by)
update_flagged_posts_count
end
def recover!
update_category_topic_count_by(1) unless deleted_at.nil?
super
update_flagged_posts_count
end
rate_limit :default_rate_limiter
rate_limit :limit_topics_per_day
rate_limit :limit_private_messages_per_day
validates :title, :if => Proc.new { |t| t.new_record? || t.title_changed? },
:presence => true,
:topic_title_length => true,
:quality_title => { :unless => :private_message? },
:unique_among => { :unless => Proc.new { |t| (SiteSetting.allow_duplicate_topic_titles? || t.private_message?) },
:message => :has_already_been_used,
:allow_blank => true,
:case_sensitive => false,
:collection => Proc.new{ Topic.listable_topics } }
validates :category_id,
:presence => true,
:exclusion => {
:in => Proc.new{[SiteSetting.uncategorized_category_id]}
},
:if => Proc.new { |t|
(t.new_record? || t.category_id_changed?) &&
!SiteSetting.allow_uncategorized_topics &&
(t.archetype.nil? || t.archetype == Archetype.default) &&
(!t.user_id || !t.user.staff?)
}
before_validation do
self.title = TextCleaner.clean_title(TextSentinel.title_sentinel(title).text) if errors[:title].empty?
end
belongs_to :category
has_many :posts
has_many :ordered_posts, -> { order(post_number: :asc) }, class_name: "Post"
has_many :topic_allowed_users
has_many :topic_allowed_groups
has_many :allowed_group_users, through: :allowed_groups, source: :users
has_many :allowed_groups, through: :topic_allowed_groups, source: :group
has_many :allowed_users, through: :topic_allowed_users, source: :user
has_many :queued_posts
has_one :top_topic
belongs_to :user
belongs_to :last_poster, class_name: 'User', foreign_key: :last_post_user_id
belongs_to :featured_user1, class_name: 'User', foreign_key: :featured_user1_id
belongs_to :featured_user2, class_name: 'User', foreign_key: :featured_user2_id
belongs_to :featured_user3, class_name: 'User', foreign_key: :featured_user3_id
belongs_to :featured_user4, class_name: 'User', foreign_key: :featured_user4_id
belongs_to :auto_close_user, class_name: 'User', foreign_key: :auto_close_user_id
has_many :topic_users
has_many :topic_links
has_many :topic_invites
has_many :invites, through: :topic_invites, source: :invite
has_one :warning
has_one :first_post, -> {where post_number: 1}, class_name: Post
# When we want to temporarily attach some data to a forum topic (usually before serialization)
attr_accessor :user_data
attr_accessor :posters # TODO: can replace with posters_summary once we remove old list code
attr_accessor :participants
attr_accessor :topic_list
attr_accessor :meta_data
attr_accessor :include_last_poster
attr_accessor :import_mode # set to true to optimize creation and save for imports
# The regular order
scope :topic_list_order, -> { order('topics.bumped_at desc') }
# Return private message topics
scope :private_messages, -> { where(archetype: Archetype.private_message) }
scope :listable_topics, -> { where('topics.archetype <> ?', [Archetype.private_message]) }
scope :by_newest, -> { order('topics.created_at desc, topics.id desc') }
scope :visible, -> { where(visible: true) }
scope :created_since, lambda { |time_ago| where('topics.created_at > ?', time_ago) }
scope :secured, lambda { |guardian=nil|
ids = guardian.secure_category_ids if guardian
# Query conditions
condition = if ids.present?
["NOT c.read_restricted or c.id in (:cats)", cats: ids]
else
["NOT c.read_restricted"]
end
where("category_id IS NULL OR category_id IN (
SELECT c.id FROM categories c
WHERE #{condition[0]})", condition[1])
}
attr_accessor :ignore_category_auto_close
attr_accessor :skip_callbacks
before_create do
initialize_default_values
inherit_auto_close_from_category
end
after_create do
unless skip_callbacks
changed_to_category(category)
advance_draft_sequence
end
end
before_save do
unless skip_callbacks
cancel_auto_close_job
ensure_topic_has_a_category
end
if title_changed?
write_attribute :fancy_title, Topic.fancy_title(title)
end
end
after_save do
unless skip_callbacks
schedule_auto_close_job
end
banner = "banner".freeze
if archetype_was == banner || archetype == banner
ApplicationController.banner_json_cache.clear
end
end
def initialize_default_values
self.bumped_at ||= Time.now
self.last_post_user_id ||= user_id
end
def inherit_auto_close_from_category
if !@ignore_category_auto_close && self.category && self.category.auto_close_hours && self.auto_close_at.nil?
self.auto_close_based_on_last_post = self.category.auto_close_based_on_last_post
set_auto_close(self.category.auto_close_hours)
end
end
def advance_draft_sequence
if archetype == Archetype.private_message
DraftSequence.next!(user, Draft::NEW_PRIVATE_MESSAGE)
else
DraftSequence.next!(user, Draft::NEW_TOPIC)
end
end
def cancel_auto_close_job
if (auto_close_at_changed? && !auto_close_at_was.nil?) || (auto_close_user_id_changed? && auto_close_at)
self.auto_close_started_at ||= Time.zone.now if auto_close_at
Jobs.cancel_scheduled_job(:close_topic, { topic_id: id })
end
end
def schedule_auto_close_job
if auto_close_at && (auto_close_at_changed? || auto_close_user_id_changed?)
options = { topic_id: id, user_id: auto_close_user_id || user_id }
Jobs.enqueue_at(auto_close_at, :close_topic, options)
end
end
def ensure_topic_has_a_category
if category_id.nil? && (archetype.nil? || archetype == Archetype.default)
self.category_id = SiteSetting.uncategorized_category_id
end
end
def self.visible_post_types(viewed_by=nil)
types = Post.types
result = [types[:regular], types[:moderator_action], types[:small_action]]
result << types[:whisper] if viewed_by.try(:staff?)
result
end
def self.top_viewed(max = 10)
Topic.listable_topics.visible.secured.order('views desc').limit(max)
end
def self.recent(max = 10)
Topic.listable_topics.visible.secured.order('created_at desc').limit(max)
end
def self.count_exceeds_minimum?
count > SiteSetting.minimum_topics_similar
end
def best_post
posts.order('score desc').limit(1).first
end
def has_flags?
FlagQuery.flagged_post_actions("active")
.where("topics.id" => id)
.exists?
end
# all users (in groups or directly targetted) that are going to get the pm
def all_allowed_users
moderators_sql = " UNION #{User.moderators.to_sql}" if private_message? && has_flags?
User.from("(#{allowed_users.to_sql} UNION #{allowed_group_users.to_sql}#{moderators_sql}) as users")
end
# Additional rate limits on topics: per day and private messages per day
def limit_topics_per_day
if user && user.first_day_user?
limit_first_day_topics_per_day
else
apply_per_day_rate_limit_for("topics", :max_topics_per_day)
end
end
def limit_private_messages_per_day
return unless private_message?
apply_per_day_rate_limit_for("pms", :max_private_messages_per_day)
end
def self.fancy_title(title)
escaped = ERB::Util.html_escape(title)
return unless escaped
HtmlPrettify.render(escaped)
end
def fancy_title
return ERB::Util.html_escape(title) unless SiteSetting.title_fancy_entities?
unless fancy_title = read_attribute(:fancy_title)
fancy_title = Topic.fancy_title(title)
write_attribute(:fancy_title, fancy_title)
unless new_record?
# make sure data is set in table, this also allows us to change algorithm
# by simply nulling this column
exec_sql("UPDATE topics SET fancy_title = :fancy_title where id = :id", id: self.id, fancy_title: fancy_title)
end
end
fancy_title
end
def pending_posts_count
queued_posts.new_count
end
# Returns hot topics since a date for display in email digest.
def self.for_digest(user, since, opts=nil)
opts = opts || {}
score = "#{ListController.best_period_for(since)}_score"
topics = Topic
.visible
.secured(Guardian.new(user))
.joins("LEFT OUTER JOIN topic_users ON topic_users.topic_id = topics.id AND topic_users.user_id = #{user.id.to_i}")
.joins("LEFT OUTER JOIN users ON users.id = topics.user_id")
.where(closed: false, archived: false)
.where("COALESCE(topic_users.notification_level, 1) <> ?", TopicUser.notification_levels[:muted])
.where("COALESCE(users.trust_level, 0) > 0")
.created_since(since)
.listable_topics
.includes(:category)
if !!opts[:top_order]
topics = topics.joins("LEFT OUTER JOIN top_topics ON top_topics.topic_id = topics.id")
.order(TopicQuerySQL.order_top_for(score))
end
if opts[:limit]
topics = topics.limit(opts[:limit])
end
# Remove category topics
category_topic_ids = Category.pluck(:topic_id).compact!
if category_topic_ids.present?
topics = topics.where("topics.id NOT IN (?)", category_topic_ids)
end
# Remove muted categories
muted_category_ids = CategoryUser.where(user_id: user.id, notification_level: CategoryUser.notification_levels[:muted]).pluck(:category_id)
if muted_category_ids.present?
topics = topics.where("topics.category_id NOT IN (?)", muted_category_ids)
end
topics
end
# Using the digest query, figure out what's new for a user since last seen
def self.new_since_last_seen(user, since, featured_topic_ids)
topics = Topic.for_digest(user, since)
topics.where("topics.id NOT IN (?)", featured_topic_ids)
end
def meta_data=(data)
custom_fields.replace(data)
end
def meta_data
custom_fields
end
def update_meta_data(data)
custom_fields.update(data)
save
end
def reload(options=nil)
@post_numbers = nil
super(options)
end
def post_numbers
@post_numbers ||= posts.order(:post_number).pluck(:post_number)
end
def age_in_minutes
((Time.zone.now - created_at) / 1.minute).round
end
def has_meta_data_boolean?(key)
meta_data_string(key) == 'true'
end
def meta_data_string(key)
custom_fields[key.to_s]
end
def self.listable_count_per_day(start_date, end_date, category_id=nil)
result = listable_topics.where('created_at >= ? and created_at <= ?', start_date, end_date)
result = result.where(category_id: category_id) if category_id
result.group('date(created_at)').order('date(created_at)').count
end
def private_message?
archetype == Archetype.private_message
end
MAX_SIMILAR_BODY_LENGTH = 200
# Search for similar topics
def self.similar_to(title, raw, user=nil)
return [] unless title.present?
return [] unless raw.present?
filter_words = Search.prepare_data(title + " " + raw[0...MAX_SIMILAR_BODY_LENGTH]);
ts_query = Search.ts_query(filter_words, nil, "|")
# Exclude category definitions from similar topic suggestions
candidates = Topic.visible
.secured(Guardian.new(user))
.listable_topics
.joins('JOIN topic_search_data s ON topics.id = s.topic_id')
.where("search_data @@ #{ts_query}")
.order("ts_rank(search_data, #{ts_query}) DESC")
.limit(SiteSetting.max_similar_results * 3)
exclude_topic_ids = Category.pluck(:topic_id).compact!
if exclude_topic_ids.present?
candidates = candidates.where("topics.id NOT IN (?)", exclude_topic_ids)
end
candidate_ids = candidates.pluck(:id)
return [] unless candidate_ids.present?
similar = Topic.select(sanitize_sql_array(["topics.*, similarity(topics.title, :title) + similarity(topics.title, :raw) AS similarity, p.cooked as blurb", title: title, raw: raw]))
.joins("JOIN posts AS p ON p.topic_id = topics.id AND p.post_number = 1")
.limit(SiteSetting.max_similar_results)
.where("topics.id IN (?)", candidate_ids)
.where("similarity(topics.title, :title) + similarity(topics.title, :raw) > 0.2", raw: raw, title: title)
.order('similarity desc')
similar
end
def update_status(status, enabled, user, opts={})
TopicStatusUpdate.new(self, user).update!(status, enabled, opts)
end
# Atomically creates the next post number
def self.next_post_number(topic_id, reply = false)
highest = exec_sql("select coalesce(max(post_number),0) as max from posts where topic_id = ?", topic_id).first['max'].to_i
reply_sql = reply ? ", reply_count = reply_count + 1" : ""
result = exec_sql("UPDATE topics SET highest_post_number = ? + 1#{reply_sql}
WHERE id = ? RETURNING highest_post_number", highest, topic_id)
result.first['highest_post_number'].to_i
end
# If a post is deleted we have to update our highest post counters
def self.reset_highest(topic_id)
result = exec_sql "UPDATE topics
SET highest_post_number = (SELECT COALESCE(MAX(post_number), 0) FROM posts WHERE topic_id = :topic_id AND deleted_at IS NULL),
posts_count = (SELECT count(*) FROM posts WHERE deleted_at IS NULL AND topic_id = :topic_id),
last_posted_at = (SELECT MAX(created_at) FROM POSTS WHERE topic_id = :topic_id AND deleted_at IS NULL)
WHERE id = :topic_id
RETURNING highest_post_number", topic_id: topic_id
highest_post_number = result.first['highest_post_number'].to_i
# Update the forum topic user records
exec_sql "UPDATE topic_users
SET last_read_post_number = CASE
WHEN last_read_post_number > :highest THEN :highest
ELSE last_read_post_number
END,
highest_seen_post_number = CASE
WHEN highest_seen_post_number > :highest THEN :highest
ELSE highest_seen_post_number
END
WHERE topic_id = :topic_id",
highest: highest_post_number,
topic_id: topic_id
end
# This calculates the geometric mean of the posts and stores it with the topic
def self.calculate_avg_time(min_topic_age=nil)
builder = SqlBuilder.new("UPDATE topics
SET avg_time = x.gmean
FROM (SELECT topic_id,
round(exp(avg(ln(avg_time)))) AS gmean
FROM posts
WHERE avg_time > 0 AND avg_time IS NOT NULL
GROUP BY topic_id) AS x
/*where*/")
builder.where("x.topic_id = topics.id AND
(topics.avg_time <> x.gmean OR topics.avg_time IS NULL)")
if min_topic_age
builder.where("topics.bumped_at > :bumped_at", bumped_at: min_topic_age)
end
builder.exec
end
def changed_to_category(new_category)
return true if new_category.blank? || Category.find_by(topic_id: id).present?
return false if new_category.id == SiteSetting.uncategorized_category_id && !SiteSetting.allow_uncategorized_topics
Topic.transaction do
old_category = category
if self.category_id != new_category.id
self.category_id = new_category.id
self.update_column(:category_id, new_category.id)
Category.where(id: old_category.id).update_all("topic_count = topic_count - 1") if old_category
end
Category.where(id: new_category.id).update_all("topic_count = topic_count + 1")
CategoryFeaturedTopic.feature_topics_for(old_category) unless @import_mode
CategoryFeaturedTopic.feature_topics_for(new_category) unless @import_mode || old_category.id == new_category.id
CategoryUser.auto_watch_new_topic(self, new_category)
CategoryUser.auto_track_new_topic(self, new_category)
end
true
end
def add_moderator_post(user, text, opts=nil)
opts ||= {}
new_post = nil
creator = PostCreator.new(user,
raw: text,
post_type: opts[:post_type] || Post.types[:moderator_action],
action_code: opts[:action_code],
no_bump: opts[:bump].blank?,
skip_notifications: opts[:skip_notifications],
topic_id: self.id,
skip_validations: true)
new_post = creator.create
increment!(:moderator_posts_count) if new_post.persisted?
if new_post.present?
# If we are moving posts, we want to insert the moderator post where the previous posts were
# in the stream, not at the end.
new_post.update_attributes(post_number: opts[:post_number], sort_order: opts[:post_number]) if opts[:post_number].present?
# Grab any links that are present
TopicLink.extract_from(new_post)
QuotedPost.extract_from(new_post)
end
new_post
end
def change_category_to_id(category_id)
return false if private_message?
new_category_id = category_id.to_i
# if the category name is blank, reset the attribute
new_category_id = SiteSetting.uncategorized_category_id if new_category_id == 0
return true if self.category_id == new_category_id
cat = Category.find_by(id: new_category_id)
return false unless cat
changed_to_category(cat)
end
def remove_allowed_user(username)
if user = User.find_by(username: username)
topic_user = topic_allowed_users.find_by(user_id: user.id)
if topic_user
topic_user.destroy
return true
end
end
false
end
# Invite a user to the topic by username or email. Returns success/failure
def invite(invited_by, username_or_email, group_ids=nil)
if private_message?
# If the user exists, add them to the message.
user = User.find_by_username_or_email(username_or_email)
if user && topic_allowed_users.create!(user_id: user.id)
# Notify the user they've been invited
user.notifications.create(notification_type: Notification.types[:invited_to_private_message],
topic_id: id,
post_number: 1,
data: { topic_title: title,
display_username: invited_by.username }.to_json)
return true
end
end
if username_or_email =~ /^.+@.+$/ && !SiteSetting.enable_sso && SiteSetting.enable_local_logins
# rate limit topic invite
RateLimiter.new(invited_by, "topic-invitations-per-day", SiteSetting.max_topic_invitations_per_day, 1.day.to_i).performed!
# NOTE callers expect an invite object if an invite was sent via email
invite_by_email(invited_by, username_or_email, group_ids)
else
# invite existing member to a topic
user = User.find_by_username(username_or_email)
if user && topic_allowed_users.create!(user_id: user.id)
# rate limit topic invite
RateLimiter.new(invited_by, "topic-invitations-per-day", SiteSetting.max_topic_invitations_per_day, 1.day.to_i).performed!
# Notify the user they've been invited
user.notifications.create(notification_type: Notification.types[:invited_to_topic],
topic_id: id,
post_number: 1,
data: { topic_title: title,
display_username: invited_by.username }.to_json)
return true
else
false
end
end
end
def invite_by_email(invited_by, email, group_ids=nil)
Invite.invite_by_email(email, invited_by, self, group_ids)
end
def email_already_exists_for?(invite)
invite.email_already_exists and private_message?
end
def grant_permission_to_user(lower_email)
user = User.find_by(email: lower_email)
topic_allowed_users.create!(user_id: user.id)
end
def max_post_number
posts.with_deleted.maximum(:post_number).to_i
end
def move_posts(moved_by, post_ids, opts)
post_mover = PostMover.new(self, moved_by, post_ids)
if opts[:destination_topic_id]
post_mover.to_topic opts[:destination_topic_id]
elsif opts[:title]
post_mover.to_new_topic(opts[:title], opts[:category_id])
end
end
# Updates the denormalized statistics of a topic including featured posters. They shouldn't
# go out of sync unless you do something drastic live move posts from one topic to another.
# this recalculates everything.
def update_statistics
feature_topic_users
update_action_counts
Topic.reset_highest(id)
end
def update_flagged_posts_count
PostAction.update_flagged_posts_count
end
def update_action_counts
PostActionType.types.each_key do |type|
count_field = "#{type}_count"
update_column(count_field, Post.where(topic_id: id).sum(count_field))
end
end
def posters_summary(options = {})
@posters_summary ||= TopicPostersSummary.new(self, options).summary
end
def participants_summary(options = {})
@participants_summary ||= TopicParticipantsSummary.new(self, options).summary
end
def make_banner!(user)
# only one banner at the same time
previous_banner = Topic.where(archetype: Archetype.banner).first
previous_banner.remove_banner!(user) if previous_banner.present?
self.archetype = Archetype.banner
self.add_moderator_post(user, I18n.t("archetypes.banner.message.make"))
self.save
MessageBus.publish('/site/banner', banner)
end
def remove_banner!(user)
self.archetype = Archetype.default
self.add_moderator_post(user, I18n.t("archetypes.banner.message.remove"))
self.save
MessageBus.publish('/site/banner', nil)
end
def banner
post = self.posts.order(:post_number).limit(1).first
{
html: post.cooked,
key: self.id,
url: self.url
}
end
# Even if the slug column in the database is null, topic.slug will return something:
def slug
unless slug = read_attribute(:slug)
return '' unless title.present?
slug = Slug.for(title)
if new_record?
write_attribute(:slug, slug)
else
update_column(:slug, slug)
end
end
slug
end
def title=(t)
slug = Slug.for(t.to_s)
write_attribute(:slug, slug)
write_attribute(:fancy_title, nil)
write_attribute(:title,t)
end
# NOTE: These are probably better off somewhere else.
# Having a model know about URLs seems a bit strange.
def last_post_url
"#{Discourse.base_uri}/t/#{slug}/#{id}/#{posts_count}"
end
def self.url(id, slug, post_number=nil)
url = "#{Discourse.base_url}/t/#{slug}/#{id}"
url << "/#{post_number}" if post_number.to_i > 1
url
end
def url(post_number = nil)
self.class.url id, slug, post_number
end
def self.relative_url(id, slug, post_number=nil)
url = "#{Discourse.base_uri}/t/#{slug}/#{id}"
url << "/#{post_number}" if post_number.to_i > 1
url
end
def relative_url(post_number=nil)
Topic.relative_url(id, slug, post_number)
end
def unsubscribe_url
"#{url}/unsubscribe"
end
def clear_pin_for(user)
return unless user.present?
TopicUser.change(user.id, id, cleared_pinned_at: Time.now)
end
def re_pin_for(user)
return unless user.present?
TopicUser.change(user.id, id, cleared_pinned_at: nil)
end
def update_pinned(status, global=false, pinned_until=nil)
pinned_until = Time.parse(pinned_until) rescue nil
update_columns(
pinned_at: status ? Time.now : nil,
pinned_globally: global,
pinned_until: pinned_until
)
Jobs.cancel_scheduled_job(:unpin_topic, topic_id: self.id)
Jobs.enqueue_at(pinned_until, :unpin_topic, topic_id: self.id) if pinned_until
end
def draft_key
"#{Draft::EXISTING_TOPIC}#{id}"
end
def notifier
@topic_notifier ||= TopicNotifier.new(self)
end
def muted?(user)
if user && user.id
notifier.muted?(user.id)
end
end
def self.ensure_consistency!
# unpin topics that might have been missed
Topic.where("pinned_until < now()").update_all(pinned_at: nil, pinned_globally: false, pinned_until: nil)
end
def self.auto_close
Topic.where("NOT closed AND auto_close_at < ? AND auto_close_user_id IS NOT NULL", 1.minute.ago).each do |t|
t.auto_close
end
end
def auto_close(closer = nil)
if auto_close_at && !closed? && !deleted_at && auto_close_at < 5.minutes.from_now
closer ||= auto_close_user
if Guardian.new(closer).can_moderate?(self)
update_status('autoclosed', true, closer)
end
end
end
# Valid arguments for the auto close time:
# * An integer, which is the number of hours from now to close the topic.
# * A time, like "12:00", which is the time at which the topic will close in the current day
# or the next day if that time has already passed today.
# * A timestamp, like "2013-11-25 13:00", when the topic should close.
# * A timestamp with timezone in JSON format. (e.g., "2013-11-26T21:00:00.000Z")
# * nil, to prevent the topic from automatically closing.
# Options:
# * by_user: User who is setting the auto close time
# * timezone_offset: (Integer) offset from UTC in minutes of the given argument. Default 0.
def set_auto_close(arg, opts={})
self.auto_close_hours = nil
by_user = opts[:by_user]
offset_minutes = opts[:timezone_offset]
if self.auto_close_based_on_last_post
num_hours = arg.to_f
if num_hours > 0
last_post_created_at = self.ordered_posts.last.try(:created_at) || Time.zone.now
self.auto_close_at = last_post_created_at + num_hours.hours
self.auto_close_hours = num_hours
else
self.auto_close_at = nil
end
else
utc = Time.find_zone("UTC")
if arg.is_a?(String) && m = /^(\d{1,2}):(\d{2})(?:\s*[AP]M)?$/i.match(arg.strip)
# a time of day in client's time zone, like "15:00"
now = utc.now
self.auto_close_at = utc.local(now.year, now.month, now.day, m[1].to_i, m[2].to_i)
self.auto_close_at += offset_minutes * 60 if offset_minutes
self.auto_close_at += 1.day if self.auto_close_at < now
elsif arg.is_a?(String) && arg.include?("-") && timestamp = utc.parse(arg)
# a timestamp in client's time zone, like "2015-5-27 12:00"
self.auto_close_at = timestamp
self.auto_close_at += offset_minutes * 60 if offset_minutes
self.errors.add(:auto_close_at, :invalid) if timestamp < Time.zone.now
else
num_hours = arg.to_f
if num_hours > 0
self.auto_close_at = num_hours.hours.from_now
self.auto_close_hours = num_hours
else
self.auto_close_at = nil
end
end
end
if self.auto_close_at.nil?
self.auto_close_started_at = nil
else
if self.auto_close_based_on_last_post
self.auto_close_started_at = Time.zone.now
else
self.auto_close_started_at ||= Time.zone.now
end
if by_user.try(:staff?) || by_user.try(:trust_level) == TrustLevel[4]
self.auto_close_user = by_user
else
self.auto_close_user ||= (self.user.staff? || self.user.trust_level == TrustLevel[4] ? self.user : Discourse.system_user)
end
end
self
end
def read_restricted_category?
category && category.read_restricted
end
def acting_user
@acting_user || user
end
def acting_user=(u)
@acting_user = u
end
def secure_group_ids
@secure_group_ids ||= if self.category && self.category.read_restricted?
self.category.secure_group_ids
end
end
def has_topic_embed?
TopicEmbed.where(topic_id: id).exists?
end
def expandable_first_post?
SiteSetting.embed_truncate? && has_topic_embed?
end
TIME_TO_FIRST_RESPONSE_SQL ||= <<-SQL
SELECT AVG(t.hours)::float AS "hours", t.created_at AS "date"
FROM (
SELECT t.id, t.created_at::date AS created_at, EXTRACT(EPOCH FROM MIN(p.created_at) - t.created_at)::float / 3600.0 AS "hours"
FROM topics t
LEFT JOIN posts p ON p.topic_id = t.id
/*where*/
GROUP BY t.id
) t
GROUP BY t.created_at
ORDER BY t.created_at
SQL
TIME_TO_FIRST_RESPONSE_TOTAL_SQL ||= <<-SQL
SELECT AVG(t.hours)::float AS "hours"
FROM (
SELECT t.id, EXTRACT(EPOCH FROM MIN(p.created_at) - t.created_at)::float / 3600.0 AS "hours"
FROM topics t
LEFT JOIN posts p ON p.topic_id = t.id
/*where*/
GROUP BY t.id
) t
SQL
def self.time_to_first_response(sql, opts=nil)
opts ||= {}
builder = SqlBuilder.new(sql)
builder.where("t.created_at >= :start_date", start_date: opts[:start_date]) if opts[:start_date]
builder.where("t.created_at < :end_date", end_date: opts[:end_date]) if opts[:end_date]
builder.where("t.category_id = :category_id", category_id: opts[:category_id]) if opts[:category_id]
builder.where("t.archetype <> '#{Archetype.private_message}'")
builder.where("t.deleted_at IS NULL")
builder.where("p.deleted_at IS NULL")
builder.where("p.post_number > 1")
builder.where("p.user_id != t.user_id")
builder.where("p.user_id in (:user_ids)", {user_ids: opts[:user_ids]}) if opts[:user_ids]
builder.where("EXTRACT(EPOCH FROM p.created_at - t.created_at) > 0")
builder.exec
end
def self.time_to_first_response_per_day(start_date, end_date, opts={})
time_to_first_response(TIME_TO_FIRST_RESPONSE_SQL, opts.merge({start_date: start_date, end_date: end_date}))
end
def self.time_to_first_response_total(opts=nil)
total = time_to_first_response(TIME_TO_FIRST_RESPONSE_TOTAL_SQL, opts)
total.first["hours"].to_f.round(2)
end
WITH_NO_RESPONSE_SQL ||= <<-SQL
SELECT COUNT(*) as count, tt.created_at AS "date"
FROM (
SELECT t.id, t.created_at::date AS created_at, MIN(p.post_number) first_reply
FROM topics t
LEFT JOIN posts p ON p.topic_id = t.id AND p.user_id != t.user_id AND p.deleted_at IS NULL
/*where*/
GROUP BY t.id
) tt
WHERE tt.first_reply IS NULL
GROUP BY tt.created_at
ORDER BY tt.created_at
SQL
def self.with_no_response_per_day(start_date, end_date, category_id=nil)
builder = SqlBuilder.new(WITH_NO_RESPONSE_SQL)
builder.where("t.created_at >= :start_date", start_date: start_date) if start_date
builder.where("t.created_at < :end_date", end_date: end_date) if end_date
builder.where("t.category_id = :category_id", category_id: category_id) if category_id
builder.where("t.archetype <> '#{Archetype.private_message}'")
builder.where("t.deleted_at IS NULL")
builder.exec
end
WITH_NO_RESPONSE_TOTAL_SQL ||= <<-SQL
SELECT COUNT(*) as count
FROM (
SELECT t.id, MIN(p.post_number) first_reply
FROM topics t
LEFT JOIN posts p ON p.topic_id = t.id AND p.user_id != t.user_id AND p.deleted_at IS NULL
/*where*/
GROUP BY t.id
) tt
WHERE tt.first_reply IS NULL
SQL
def self.with_no_response_total(opts={})
builder = SqlBuilder.new(WITH_NO_RESPONSE_TOTAL_SQL)
builder.where("t.category_id = :category_id", category_id: opts[:category_id]) if opts[:category_id]
builder.where("t.archetype <> '#{Archetype.private_message}'")
builder.where("t.deleted_at IS NULL")
builder.exec.first["count"].to_i
end
private
def update_category_topic_count_by(num)
if category_id.present?
Category.where(['id = ?', category_id]).update_all("topic_count = topic_count " + (num > 0 ? '+' : '') + "#{num}")
end
end
def limit_first_day_topics_per_day
apply_per_day_rate_limit_for("first-day-topics", :max_topics_in_first_day)
end
def apply_per_day_rate_limit_for(key, method_name)
RateLimiter.new(user, "#{key}-per-day", SiteSetting.send(method_name), 1.day.to_i)
end
end
# == Schema Information
#
# Table name: topics
#
# id :integer not null, primary key
# title :string(255) not null
# last_posted_at :datetime
# created_at :datetime not null
# updated_at :datetime not null
# views :integer default(0), not null
# posts_count :integer default(0), not null
# user_id :integer
# last_post_user_id :integer not null
# reply_count :integer default(0), not null
# featured_user1_id :integer
# featured_user2_id :integer
# featured_user3_id :integer
# avg_time :integer
# deleted_at :datetime
# highest_post_number :integer default(0), not null
# image_url :string(255)
# off_topic_count :integer default(0), not null
# like_count :integer default(0), not null
# incoming_link_count :integer default(0), not null
# bookmark_count :integer default(0), not null
# category_id :integer
# visible :boolean default(TRUE), not null
# moderator_posts_count :integer default(0), not null
# closed :boolean default(FALSE), not null
# archived :boolean default(FALSE), not null
# bumped_at :datetime not null
# has_summary :boolean default(FALSE), not null
# vote_count :integer default(0), not null
# archetype :string(255) default("regular"), not null
# featured_user4_id :integer
# notify_moderators_count :integer default(0), not null
# spam_count :integer default(0), not null
# illegal_count :integer default(0), not null
# inappropriate_count :integer default(0), not null
# pinned_at :datetime
# score :float
# percent_rank :float default(1.0), not null
# notify_user_count :integer default(0), not null
# subtype :string(255)
# slug :string(255)
# auto_close_at :datetime
# auto_close_user_id :integer
# auto_close_started_at :datetime
# deleted_by_id :integer
# participant_count :integer default(1)
# word_count :integer
# excerpt :string(1000)
# pinned_globally :boolean default(FALSE), not null
# auto_close_based_on_last_post :boolean default(FALSE)
# auto_close_hours :float
# pinned_until :datetime
# fancy_title :string(400)
#
# Indexes
#
# idx_topics_front_page (deleted_at,visible,archetype,category_id,id)
# idx_topics_user_id_deleted_at (user_id)
# index_topics_on_bumped_at (bumped_at)
# index_topics_on_created_at_and_visible (created_at,visible)
# index_topics_on_id_and_deleted_at (id,deleted_at)
# index_topics_on_pinned_at (pinned_at)
# index_topics_on_pinned_globally (pinned_globally)
#