association_class

# File activerecord/lib/active_record/reflection.rb, line 323
      def association_class
        case macro
        when :belongs_to
          if options[:polymorphic]
            Associations::BelongsToPolymorphicAssociation
          else
            Associations::BelongsToAssociation
          end
        when :has_and_belongs_to_many
          Associations::HasAndBelongsToManyAssociation
        when :has_many
          if options[:through]
            Associations::HasManyThroughAssociation
          else
            Associations::HasManyAssociation
          end
        when :has_one
          if options[:through]
            Associations::HasOneThroughAssociation
          else
            Associations::HasOneAssociation
          end
        end
      end