Simple Ruby CSV Model

something_csv.rb

require 'csv'
class SomethingCSV
  def initialize(io, relation)
    @target = io
    @relation = relation
    @headers = [  "Name",
                  "SomeValue",
                  "AnotherValue"
               ]
  end

  def export
    csv = CSV.new(@target)
    csv << @headers
    @relation.find_in_batches do | somethings|
        somethings.each do |something|
        csv << row_for(something)
      end
      csv.flush
    end
end

  def row_for(something)
    [ something.name,
      something.some_value,
      something.another_value
    ]
  end
end

qa_name = 'something.csv'
out_file = File.open(File.join(path,name), 'wb')
csv = SomethingCSV.new(out_file,self.somethings)
csv.export