Make RoR nested representable into an array

Question

In using the representable gem, I am looking to nest an object within an array, with that array only having one object. I can't see to figure out how to accomplish this. Any ideas? The reason for this is due to how Google Tag Manager handles enhanced ecommerce tracking.

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

Will spit out:

"products": {
  "name" : "Nike Swoosh",
  "id" : 8
}

When I want is to come out as:

"products": [ {
  "name" : "Nike Swoosh",
  "id" : 8
} ] 

Answer 1

You can just use the collection in the representable module. Although you have only a single object, since you want to wrap it in an Array. It technically become a collection with a single object. Then define a getter with that collection name in the parent object. Here is an 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