/ Ruby on Rails
/
references(*args)
public

No documentation available.

# File activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb, line 253
      def references(*args)
        options = args.extract_options!
        polymorphic = options.delete(:polymorphic)
        index_options = options.delete(:index)
        args.each do |col|
          column("#{col}_id", :integer, options)
          column("#{col}_type", :string, polymorphic.is_a?(Hash) ? polymorphic : options) if polymorphic
          index(polymorphic ? %(id type).map { |t| "#{col}_#{t}" } : "#{col}_id", index_options.is_a?(Hash) ? index_options : {}) if index_options
        end
      end

1Note

See column

mikael ยท Feb 17, 20092 thanks

See the end part of the docs on column for example uses.