Represent an array

[Tomás Barrios]

Hi,

I am trying to represent an object and its associated objects, the problem is that is not a direct assoc, so i made a method to retrieve the deep query and bring only the info i need

finally the method returns an array which works "almost" as i expected, BUT, the representation adds an extra [ ] around the json.

This is the method.

      property :how_to_get_to_city_center
     
      def how_to_get_to_city_center
        answers = []
        transport_stations.each do |ts|
          ts.questions.each do |q|
            best = q.answers.sort_by{|a| a.rates_mean}
            answers << best unless best.empty?
          end
        end
        answers
      end

And this is the JSON output (after how_to_get_to_city_center you can see the extra [). Is there a way to do what I am trying? Thanks!

• {
  id: 597,
  name: "Santiago",
  ...
  updated_at: "2014-12-17T19:03:06Z",
  how_to_get_to_city_center:
  [
  [
  {
  created_at: "2014-12-22T16:15:03Z",
  id: 41,
  question_id: 71999,
  text: "My answer!",
  updated_at: "22 Dec 2014",
  user_id: 18,
  rating: "0.0",
  rates: [ ],
  reviews_count: 0,}]]}
  

[Rhett Sutphin]

Hi Tomás,

It looks like your `answers` array is an array of arrays, because `best` in the inner loop is an array. If you want to ensure you get just a one-dimensional array, you can use `answers.flatten` at the end, or use `flat_map` while constructing the result for `how_to_get_to_city_center`. Or, if you expected `best` to be a single value, maybe you wanted to do `q.answers.sort_by { |a| a.rates_mean }.first`.

(BTW, this is more of a general ruby question than something Roar-specific. Roar is accurately serializing the property value you’re giving it.)

Rhett

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[Tomás Barrios]

Sorry! My mistake.

I thought i was probably doing something wrong, that there was another way to better do this with roar.

Thanks!

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