discourse/lib/topic_query/private_message_lists.rb

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# frozen_string_literal: true
class TopicQuery
module PrivateMessageLists
def list_private_messages(user, &blk)
list = user_personal_private_messages(user)
list = not_archived(list, user)
list = have_posts_from_others(list, user)
create_list(:private_messages, {}, list, &blk)
end
def list_private_messages_direct_and_groups(user, groups_messages_notification_level: nil, &blk)
list =
user_personal_and_groups_private_messages(
user,
groups_messages_notification_level: groups_messages_notification_level,
)
list = not_archived(list, user)
list = not_archived_in_groups(list)
list = have_posts_from_others(list, user)
create_list(:private_messages, {}, list, &blk)
end
def list_private_messages_archive(user)
list = user_personal_private_messages(user)
list =
list.joins(:user_archived_messages).where("user_archived_messages.user_id = ?", user.id)
create_list(:private_messages, {}, list)
end
def list_private_messages_sent(user)
list = user_personal_private_messages(user)
list = list.where(<<~SQL, user.id)
EXISTS (
SELECT 1 FROM posts
WHERE posts.topic_id = topics.id AND posts.user_id = ?
)
SQL
list = not_archived(list, user)
create_list(:private_messages, {}, list)
end
def list_private_messages_new(user, type = :user)
list = filter_private_message_new(user, type)
list = TopicQuery.remove_muted_tags(list, user, skip_categories: true)
list = remove_dismissed(list, user)
create_list(:private_messages, {}, list)
end
def list_private_messages_unread(user, type = :user)
list = filter_private_messages_unread(user, type)
create_list(:private_messages, {}, list)
end
def list_private_messages_group(user)
list = user_groups_private_messages(user)
list = list.joins(<<~SQL)
LEFT JOIN group_archived_messages gm
ON gm.topic_id = topics.id AND gm.group_id = #{group.id.to_i}
SQL
list = list.where("gm.id IS NULL")
publish_read_state = !!group.publish_read_state
list = append_read_state(list, group) if publish_read_state
create_list(:private_messages, { publish_read_state: publish_read_state, group: group }, list)
end
def list_private_messages_group_archive(user)
list = user_groups_private_messages(user)
list = list.joins(<<~SQL)
INNER JOIN group_archived_messages gm
ON gm.topic_id = topics.id AND gm.group_id = #{group.id.to_i}
SQL
publish_read_state = !!group.publish_read_state
list = append_read_state(list, group) if publish_read_state
create_list(:private_messages, { publish_read_state: publish_read_state, group: group }, list)
end
def list_private_messages_group_new(user)
list = filter_private_message_new(user, :group)
list = remove_dismissed(list, user)
publish_read_state = !!group.publish_read_state
list = append_read_state(list, group) if publish_read_state
create_list(:private_messages, { publish_read_state: publish_read_state, group: group }, list)
end
def list_private_messages_group_unread(user)
list = filter_private_messages_unread(user, :group)
publish_read_state = !!group.publish_read_state
list = append_read_state(list, group) if publish_read_state
create_list(:private_messages, { publish_read_state: publish_read_state, group: group }, list)
end
def list_private_messages_warnings(user)
list = user_personal_private_messages(user)
list = list.where("topics.subtype = ?", TopicSubtype.moderator_warning)
# Exclude official warnings that the user created, instead of received
list = list.where("topics.user_id <> ?", user.id)
create_list(:private_messages, {}, list)
end
def private_messages_for(user, type)
if type == :group
user_groups_private_messages(user)
elsif type == :user
user_personal_private_messages(user)
elsif type == :all
user_personal_and_groups_private_messages(user)
end
end
def list_private_messages_tag(user)
list = user_personal_and_groups_private_messages(user)
list =
list.joins(
"JOIN topic_tags tt ON tt.topic_id = topics.id
JOIN tags t ON t.id = tt.tag_id AND t.name = '#{@options[:tags][0]}'",
)
create_list(:private_messages, {}, list)
end
def filter_private_messages_unread(user, type)
list = TopicQuery.unread_filter(private_messages_for(user, type), whisperer: user.whisperer?)
first_unread_pm_at =
case type
when :user
user_first_unread_pm_at(user)
when :group
GroupUser.where(user: user, group: group).pick(:first_unread_pm_at)
else
user_first_unread_pm_at = user_first_unread_pm_at(user)
group_first_unread_pm_at = GroupUser.where(user: user).minimum(:first_unread_pm_at)
[user_first_unread_pm_at, group_first_unread_pm_at].compact.min
end
list = list.where("topics.updated_at >= ?", first_unread_pm_at) if first_unread_pm_at
list
end
def filter_private_message_new(user, type)
TopicQuery.new_filter(
private_messages_for(user, type),
treat_as_new_topic_start_date: user.user_option.treat_as_new_topic_start_date,
)
end
private
def append_read_state(list, group)
group_id = group.id
return list if group_id.nil?
selected_values = list.select_values.empty? ? ["topics.*"] : list.select_values
selected_values << "COALESCE(tg.last_read_post_number, 0) AS last_read_post_number"
list.joins(
"LEFT OUTER JOIN topic_groups tg ON topics.id = tg.topic_id AND tg.group_id = #{group_id}",
).select(*selected_values)
end
def filter_archived(list, user, archived: true)
# Executing an extra query instead of a sub-query because it is more
# efficient for the PG planner. Caution should be used when changing the
# query here as it can easily lead to an inefficient query.
group_ids = group_with_messages_ids(user)
if group_ids.present?
list = list.joins(<<~SQL)
LEFT JOIN group_archived_messages gm
ON gm.topic_id = topics.id
AND gm.group_id IN (#{group_ids.join(",")})
LEFT JOIN user_archived_messages um
ON um.user_id = #{user.id.to_i}
AND um.topic_id = topics.id
SQL
if archived
list.where("um.user_id IS NOT NULL OR gm.topic_id IS NOT NULL")
else
list.where("um.user_id IS NULL AND gm.topic_id IS NULL")
end
else
list = list.joins(<<~SQL)
LEFT JOIN user_archived_messages um
ON um.user_id = #{user.id.to_i}
AND um.topic_id = topics.id
SQL
list.where("um.user_id IS #{archived ? "NOT NULL" : "NULL"}")
end
end
def not_archived(list, user)
list.joins(
"LEFT JOIN user_archived_messages um
ON um.user_id = #{user.id.to_i} AND um.topic_id = topics.id",
).where("um.user_id IS NULL")
end
def not_archived_in_groups(list)
list.left_joins(:group_archived_messages).where(group_archived_messages: { id: nil })
end
def have_posts_from_others(list, user)
list.where(<<~SQL, user.id.to_i)
NOT (
topics.participant_count = 1
AND topics.user_id = ?
AND topics.moderator_posts_count = 0
)
SQL
end
def group
@group ||=
begin
Group.where("name ilike ?", @options[:group_name]).select(:id, :publish_read_state).first
end
end
def user_first_unread_pm_at(user)
UserStat.where(user: user).pick(:first_unread_pm_at)
end
def group_with_messages_ids(user)
@group_with_messages_ids ||= {}
if ids = @group_with_messages_ids[user.id]
return ids
end
@group_with_messages_ids[user.id] = user.groups.where(has_messages: true).pluck(:id)
end
private
def private_messages_default_scope(user)
options = @options
options.reverse_merge!(per_page: per_page_setting)
result =
Topic
.private_messages
.includes(:allowed_users)
.includes(:allowed_groups)
.joins(
"LEFT OUTER JOIN topic_users AS tu ON (topics.id = tu.topic_id AND tu.user_id = #{user.id.to_i})",
)
.order("topics.bumped_at DESC")
result = result.includes(:tags) if SiteSetting.tagging_enabled
result = result.limit(options[:per_page]) unless options[:limit] == false
result = result.visible if options[:visible] || @user.nil? || @user.regular?
if options[:page]
offset = options[:page].to_i * options[:per_page]
result = result.offset(offset) if offset > 0
end
result
end
def user_groups_private_messages(user)
result = private_messages_default_scope(user)
result =
result.joins(
"INNER JOIN topic_allowed_groups tag ON tag.topic_id = topics.id AND tag.group_id IN (SELECT id FROM groups WHERE LOWER(name) = '#{PG::Connection.escape_string(@options[:group_name].downcase)}')",
)
unless user.admin?
result =
result.joins(
"INNER JOIN group_users gu ON gu.group_id = tag.group_id AND gu.user_id = #{user.id.to_i}",
)
end
result
end
def user_personal_private_messages(user)
result = private_messages_default_scope(user)
result.where(
"topics.id IN (SELECT topic_id FROM topic_allowed_users WHERE user_id = ?)",
user.id.to_i,
)
end
def user_personal_and_groups_private_messages(user, groups_messages_notification_level: nil)
result = private_messages_default_scope(user)
group_ids = group_with_messages_ids(user)
topic_allowed_groups_scope =
if groups_messages_notification_level.present? &&
notification_level =
NotificationLevels.topic_levels[groups_messages_notification_level]
<<~SQL
SELECT topic_allowed_groups.topic_id
FROM topic_allowed_groups
INNER JOIN topic_users ON topic_users.topic_id = topic_allowed_groups.topic_id AND topic_users.user_id = :user_id
WHERE group_id IN (:group_ids)
AND topic_users.notification_level >= #{notification_level.to_i}
SQL
else
"SELECT topic_id FROM topic_allowed_groups WHERE group_id IN (:group_ids)"
end
result =
if group_ids.present?
result.where(<<~SQL, user_id: user.id.to_i, group_ids: group_ids)
topics.id IN (
SELECT topic_id
FROM topic_allowed_users
WHERE user_id = :user_id
UNION ALL
#{topic_allowed_groups_scope}
)
SQL
else
result.joins(<<~SQL)
INNER JOIN topic_allowed_users tau
ON tau.topic_id = topics.id
AND tau.user_id = #{user.id.to_i}
SQL
end
end
end
end