discourse/lib/bookmark_query.rb

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# frozen_string_literal: true
##
# Allows us to query Bookmark records for lists. Used mainly
# in the user/activity/bookmarks page.
class BookmarkQuery
cattr_accessor :preloaded_custom_fields
self.preloaded_custom_fields = Set.new
def self.on_preload(&blk)
(@preload ||= Set.new) << blk
end
def self.preload(bookmarks, object)
if @preload
@preload.each { |preload| preload.call(bookmarks, object) }
end
end
def initialize(user:, guardian: nil, params: {})
@user = user
@params = params
@guardian = guardian || Guardian.new(@user)
@page = @params[:page].to_i
@limit = @params[:limit].present? ? @params[:limit].to_i : @params[:per_page]
end
def list_all
results = user_bookmarks.order('bookmarks.updated_at DESC')
topics = Topic.listable_topics.secured(@guardian)
pms = Topic.private_messages_for_user(@user)
results = results.merge(topics.or(pms))
results = results.merge(Post.secured(@guardian))
if @params[:q].present?
term = @params[:q]
bookmark_ts_query = Search.ts_query(term: term)
results = results
.joins("LEFT JOIN post_search_data ON post_search_data.post_id = bookmarks.post_id")
.where(
"bookmarks.name ILIKE :q OR #{bookmark_ts_query} @@ post_search_data.search_data",
q: "%#{term}%"
)
end
if @page.positive?
results = results.offset(@page * @params[:per_page])
end
results = results.limit(@limit)
if BookmarkQuery.preloaded_custom_fields.any?
Topic.preload_custom_fields(
results.map(&:topic), BookmarkQuery.preloaded_custom_fields
)
end
BookmarkQuery.preload(results, self)
@guardian.filter_allowed_categories(results)
end
private
def user_bookmarks
Bookmark.where(user: @user)
.includes(topic: :tags)
.includes(post: :user)
.references(:topic)
.references(:post)
end
end