class Fixture

def value_list
  list = @fixture.inject([]) do |fixtures, (key, value)|
    col = model_class.columns_hash[key] if model_class.respond_to?(:ancestors) && model_class.ancestors.include?(ActiveRecord::Base)
    fixtures << @connection.quote(value, col).gsub('[^\]\\n', "\n").gsub('[^\]\\r', "\r")
  end
  list * ', '
end