discourse/app/serializers/wizard_field_serializer.rb

class WizardFieldSerializer < ApplicationSerializer

  attributes :id, :type, :required, :value, :label, :placeholder, :description
  has_many :choices, serializer: WizardFieldChoiceSerializer, embed: :objects

  def id
    object.id
  end

  def type
    object.type
  end

  def required
    object.required
  end

  def value
    object.value
  end

  def include_value?
    object.value.present?
  end

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

  def translate(sub_key, vars = nil)
    key = "#{i18n_key}.#{sub_key}"
    return nil unless I18n.exists?(key)

    vars.nil? ? I18n.t(key) : I18n.t(key, vars)
  end

  def label
    translate("label")
  end

  def include_label?
    label.present?
  end

  def placeholder
    translate("placeholder")
  end

  def include_placeholder?
    placeholder.present?
  end

  def description
    translate("description", base_path: Discourse.base_path)
  end

  def include_description?
    description.present?
  end

end