class ActiveRecord::FixtureSet::TableRow

def resolve_sti_reflections
  # If STI is used, find the correct subclass for association reflection
  reflection_class._reflections.each_value do |association|
    case association.macro
    when :belongs_to
      # Do not replace association name with association foreign key if they are named the same
      fk_name = association.join_foreign_key
      if association.name.to_s != fk_name && value = @row.delete(association.name.to_s)
        if association.polymorphic?
          if value.sub!(/\s*\(([^)]*)\)\s*$/, "")
            # support polymorphic belongs_to as "label (Type)"
            @row[association.join_foreign_type] = $1
          end
        elsif association.join_primary_key != association.klass.primary_key
          raise PrimaryKeyError.new(@label, association, value)
        end
        if fk_name.is_a?(Array)
          composite_key = ActiveRecord::FixtureSet.composite_identify(value, fk_name)
          composite_key.each do |column, value|
            next if column_defined?(column)
            @row[column] = value
          end
        else
          fk_type = reflection_class.type_for_attribute(fk_name).type
          @row[fk_name] = ActiveRecord::FixtureSet.identify(value, fk_type)
        end
      end
    when :has_many
      if association.options[:through]
        add_join_records(HasManyThroughProxy.new(association))
      end
    end
  end
end