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Contents
# frozen_string_literal: true
require 'dry/monads'
module Hyrax
module Transactions
module Steps
##
# Validates emptiness of the {Hyrax::AdministrativeSet}; gives `Success`
# when empty and `Failure` otherwise.
#
# Use this step to guard against destroying AdminSets with member objects.
class CheckForEmptyAdminSet
include Dry::Monads[:result]
##
# @param [#find_inverse_references_by] query_service
def initialize(query_service: Hyrax.query_service)
@query_service = query_service
end
##
# @param [Hyrax::AdministrativeSet] admin_set
#
# @return [Dry::Monads::Result]
def call(admin_set)
members = @query_service
.find_inverse_references_by(property: :admin_set_id,
resource: admin_set)
return Failure[:admin_set_has_members, members] if members.any?
Success(admin_set)
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems