debian-mirror-gitlab/app/finders/autocomplete/users_finder.rb
2019-07-31 17:26:46 +00:00

95 lines
2.6 KiB
Ruby

# frozen_string_literal: true
module Autocomplete
class UsersFinder
include Gitlab::Utils::StrongMemoize
# The number of users to display in the results is hardcoded to 20, and
# pagination is not supported. This ensures that performance remains
# consistent and removes the need for implementing keyset pagination to
# ensure good performance.
LIMIT = 20
attr_reader :current_user, :project, :group, :search, :skip_users,
:author_id, :todo_filter, :todo_state_filter,
:filter_by_current_user
def initialize(params:, current_user:, project:, group:)
@current_user = current_user
@project = project
@group = group
@search = params[:search]
@skip_users = params[:skip_users]
@author_id = params[:author_id]
@todo_filter = params[:todo_filter]
@todo_state_filter = params[:todo_state_filter]
@filter_by_current_user = params[:current_user]
end
def execute
items = limited_users
if search.blank?
# Include current user if available to filter by "Me"
items.unshift(current_user) if prepend_current_user?
if prepend_author? && author&.active?
items.unshift(author)
end
end
items.uniq
end
private
def author
strong_memoize(:author) do
User.find_by_id(author_id)
end
end
# Returns the users based on the input parameters, as an Array.
#
# This method is separate so it is easier to extend in EE.
# rubocop: disable CodeReuse/ActiveRecord
def limited_users
# When changing the order of these method calls, make sure that
# reorder_by_name() is called _before_ optionally_search(), otherwise
# reorder_by_name will break the ORDER BY applied in optionally_search().
find_users
.active
.reorder_by_name
.optionally_search(search)
.where_not_in(skip_users)
.limit_to_todo_authors(
user: current_user,
with_todos: todo_filter,
todo_state: todo_state_filter
)
.limit(LIMIT)
.to_a
end
# rubocop: enable CodeReuse/ActiveRecord
def prepend_current_user?
filter_by_current_user.present? && current_user
end
def prepend_author?
author_id.present? && current_user
end
def find_users
if project
project.authorized_users.union_with_user(author_id)
elsif group
group.users_with_parents
elsif current_user
User.all
else
User.none
end
end
end
end