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)
end
def list_all
results = user_bookmarks
.order('bookmarks.created_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[:limit]
results = results.limit(@params[:limit])
end
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