ruby on rails - Make RoR nested representable into an array -

in using representable gem, looking nest object within array, array having 1 object. can't see figure out how accomplish this. ideas? reason due how google tag manager handles enhanced ecommerce tracking.

nested 'products'   property :name, getter: lambda{|*| name }   property :id end 

will spit out:

"products": {   "name" : "nike swoosh",   "id" : 8 } 

when want come out as:

"products": [ {   "name" : "nike swoosh",   "id" : 8 } ]  

you can use collection in representable module. although have single object, since want wrap in array. technically become collection single object. define getter collection name in parent object. here example:

require 'ostruct' require 'representable' require 'representable/json'  class order < struct.new(:order, :product)     def products      [product]    end   end  module orderrepresenter   include representable::json    property :name   collection :products end   sale = order.new(name: "an order name", product: {name: "my product", id: 1}) p sale.extend(salerepresenter).to_json