Array in serializer with multiple serializer rails

Question

I am getting array after processing.

gem 'active_model_serializers'

Now i want to use serializer to send data in json format.

But when i called the serializer, it'll not getting object because of Array.

Controller -

def index
  question = user.questions.available 
  answer = user.where(:answer => params[:ans])
  render :json => {:qust => question, :each_serializer => QuestionSerializer,
                   :ans => answer, :each_serializer => AnswerSerializer}
end

question_serializer.rb

class QuestionSerializer < ActiveModel::Serializer
  attributes :id, :question, :type
end

answer_serializer.rb

class AnswerSerializer < ActiveModel::Serializer
  attributes :id, :answer, :date

  def date
   object.date = "..."
  end
end

Can you post a sample of what's coming out of this because it's not clear what your problem is. — tadman
– tadman, Commented Sep 10, 2014 at 15:31

apneadiving · Accepted Answer · 2014-09-10 15:40:04Z

17

Try this:

render json: {
  qust: ActiveModel::ArraySerializer.new(question, each_serializer: QuestionSerializer),
  ans: ActiveModel::ArraySerializer.new(answer, each_serializer: AnswerSerializer),
}

Side remarks:

beware of your naming, use plural when you work with collections.
answer = user.where(:answer => params[:ans]) looks bad

answered Sep 10, 2014 at 15:40

apneadiving

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3 Comments

corg Over a year ago

Syntax has been updated from ActiveModel::ArraySerializer.new to ActiveModel::Serializer::CollectionSerializer.new - see github.com/rails-api/active_model_serializers/issues/1809

Hardik Gondaliya Over a year ago

hey.. using this method current_user in not accessible in serializer

apneadiving Over a year ago

@HardikGondaliya add scope: current_user and use scope in your serializer

Philip · Accepted Answer · 2017-06-12 13:45:03Z

1

Or like this:

options        = {each_serializer: QuestionSerializer}
user_questions = user.questions.available 
questions      = ActiveModelSerializers::SerializableResource.new(user_questions, options)

render json: {
   qust: questions.as_json
}

answered Jun 12, 2017 at 13:45

Philip

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