discourse/app/serializers/wizard_step_serializer.rb

class WizardStepSerializer < ApplicationSerializer

  attributes :id, :next, :previous, :description, :title, :index, :banner
  has_many :fields, serializer: WizardFieldSerializer, embed: :objects

  def id
    object.id
  end

  def index
    object.index
  end

  def next
    object.next.id if object.next.present?
  end

  def include_next?
    object.next.present?
  end

  def previous
    object.previous.id if object.previous.present?
  end

  def include_previous?
    object.previous.present?
  end

  def i18n_key
    @i18n_key ||= "wizard.step.#{object.id}".underscore
  end

  def description
    I18n.t("#{i18n_key}.description", default: '')
  end

  def include_description?
    description.present?
  end

  def title
    I18n.t("#{i18n_key}.title", default: '')
  end

  def include_title?
    title.present?
  end

  def banner
    object.banner
  end

  def include_banner?
    object.banner.present?
  end

end