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fields_for(record_or_name_or_array, *args, &block) public

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# File actionpack/lib/action_view/helpers/form_helper.rb, line 748
      def fields_for(record_or_name_or_array, *args, &block)
        if options.has_key?(:index)
          index = "[#{options[:index]}]"
        elsif defined?(@auto_index)
          self.object_name = @object_name.to_s.sub(/\[\]$/,"")
          index = "[#{@auto_index}]"
        else
          index = ""
        end

        case record_or_name_or_array
        when String, Symbol
          name = "#{object_name}#{index}[#{record_or_name_or_array}]"
        when Array
          object = record_or_name_or_array.last
          name = "#{object_name}#{index}[#{ActionController::RecordIdentifier.singular_class_name(object)}]"
          args.unshift(object)
        else
          object = record_or_name_or_array
          name = "#{object_name}#{index}[#{ActionController::RecordIdentifier.singular_class_name(object)}]"
          args.unshift(object)
        end

        @template.fields_for(name, *args, &block)
      end
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