I am having hard time getting hasErrors to work with indexed properties. For example

class Order {
  String prop1
  String prop2

  static hasMany = [items: Item]
}

class Item {
  String name

  static constraints = {
    name(blank:false)
  }
}

Validation works properly and on item.name being blank I do get an error with

<g:renderErrors bean="${orderInstance}"/>

However, I am trying to have input box highlighted using hasErrors :

<g:each in="${orderIntsance.items}" status="i" var="item">
  <span class="field ${hasErrors(bean: orderInstance, field: ????????? , 'errors')}">
    <g:textField name="items[${i}].name" value="${item?.name}"/>
  </span>
</g:each>

Not sure how to get to it with a field: property, any ideas?

Thanks