resolve_sti_reflections

# File activerecord/lib/active_record/fixture_set/table_row.rb, line 110
        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.options[:foreign_key] || "#{association.name}_id").to_s

              if association.name.to_s != fk_name && value = @row.delete(association.name.to_s)
                if association.polymorphic? && value.sub!(/\s*\(([^\)]*)\)\s*$/, "")
                  # support polymorphic belongs_to as "label (Type)"
                  @row[association.foreign_type] = $1
                end

                fk_type = reflection_class.type_for_attribute(fk_name).type
                @row[fk_name] = ActiveRecord::FixtureSet.identify(value, fk_type)
              end
            when :has_many
              if association.options[:through]
                add_join_records(HasManyThroughProxy.new(association))
              end
            end
          end
        end