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# frozen_string_literal: true
module Boards
module Lists
class CreateService < Boards::BaseService
include Gitlab::Utils::StrongMemoize
def execute(board)
list = case type
when :backlog
create_backlog(board)
else
target = target(board)
position = next_position(board)
return ServiceResponse.error(message: _('%{board_target} not found') % { board_target: type.to_s.capitalize }) if target.blank?
create_list(board, type, target, position)
end
return ServiceResponse.error(message: list.errors.full_messages) unless list.persisted?
ServiceResponse.success(payload: { list: list })
end
private
def type
# We don't ever expect to have more than one list
# type param at once.
if params.key?('backlog')
:backlog
else
:label
end
end
def target(board)
strong_memoize(:target) do
available_labels.find_by(id: params[:label_id]) # rubocop: disable CodeReuse/ActiveRecord
end
end
def available_labels
::Labels::AvailableLabelsService.new(current_user, parent, {})
.available_labels
end
def next_position(board)
max_position = board.lists.movable.maximum(:position)
max_position.nil? ? 0 : max_position.succ
end
def create_list(board, type, target, position)
board.lists.create(create_list_attributes(type, target, position))
end
def create_list_attributes(type, target, position)
{ type => target, list_type: type, position: position }
end
def create_backlog(board)
return board.lists.backlog.first if board.lists.backlog.exists?
board.lists.create(list_type: :backlog, position: nil)
end
end
end
end
Boards::Lists::CreateService.prepend_if_ee('EE::Boards::Lists::CreateService')
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