api_scope_mapper_loader.rb

#
# Copyright (C) 2018 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
class ApiScopeMapperLoader

  # The ApiScopeMapper is a generated file that we don't commit.
  # This method ensures that if the file doesn't exist specs and canvas won't blow up.
  def self.load
    unless File.exist?(Rails.root.join('lib', 'api_scope_mapper.rb')) || defined? ApiScopeMapper
      Object.const_set("ApiScopeMapper", api_scope_mapper_fallback)
    end
    ApiScopeMapper
  end

  def self.api_scope_mapper_fallback
    klass = Class.new(Object)
    klass.class_eval do
      def self.lookup_resource(controller, _)
        controller
      end

      def self.name_for_resource(resource)
        resource
      end
    end
    klass
  end

end