Use ActiveModel::Serializers to include two parent json arrays

Question

I\'m trying to send my front-end application json that looks like this:

{
  facilities: [
     {id: 5, name: \'happy days ranch\', location: { address: \'1424 Pa         


        

Answer 1

This is my solution:

render json: {
  facilities: ActiveModel::ArraySerializer.new(@facilities, each_serializer: FacilitySerializer, root: false),
  instructors: ActiveModel::ArraySerializer.new(@instructors, each_serializer: InstructorSerializer, root: false)
}

It's a little bit dirty. It basically instantiates what would be instantiated except done manually and twice. Both result sets are rendered using ActiveModel::Serializers in the correct format.

Answer 2

I solved it by creating a class called Search that incorporates aspects of ActiveModel

class Search
  include ActiveModel::Serialization
  include ActiveModel::SerializerSupport

  attr_accessor :facilities, :instructors

  def initialize(facilities, instructors)
    @facilities, @instructors = facilities, instructors
  end
end

Then I created a Searches controller (nothing interesting there) and a Search serializer.

class SearchSerializer < ActiveModel::Serializer
  has_many :instructors, embed: :objects
  has_many :facilities, embed: :objects
end

This creates my desired json, although now it is wrapped in a search hash:

{search: {
  #the stuff I wanted 
}}