discourse/app/serializers/wizard_field_serializer.rb

class WizardFieldSerializer < ApplicationSerializer

  attributes :id, :type, :required, :value, :label, :placeholder

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

  def include_label?
    label.present?
  end

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

  def include_placeholder?
    placeholder.present?
  end
end