ruby:
  lookup_url ||= nil

- if lookup_url
  .person-lookup data-lookup-url=lookup_url
    = hidden_field_tag :person_id, '', class: 'hidden-person-id'
    = text_field_tag :person_name, '', placeholder: 'First or last name', required: true, class: 'form-control typeahead'

- else
  p
    ' Please specify
    code = ":lookup_url"