instantiate_fixtures

# File activerecord/lib/active_record/fixtures.rb, line 992
      def instantiate_fixtures
        if pre_loaded_fixtures
          raise RuntimeError, 'Load fixtures before instantiating them.' if Fixtures.all_loaded_fixtures.empty?
          unless @@required_fixture_classes
            self.class.require_fixture_classes Fixtures.all_loaded_fixtures.keys
            @@required_fixture_classes = true
          end
          Fixtures.instantiate_all_loaded_fixtures(self, load_instances?)
        else
          raise RuntimeError, 'Load fixtures before instantiating them.' if @loaded_fixtures.nil?
          @loaded_fixtures.each do |table_name, fixtures|
            Fixtures.instantiate_fixtures(self, table_name, fixtures, load_instances?)
          end
        end
      end