Collection+JSON item-error extension

item-error.json

{
  "collection": {
    "version": "123",
    "items": [{
      "href": "http://example.com/contacts/1",
      "data": [
        {"name": "id", "value": "1"}
      ]
    },{
      "item-error": "This object is invalid",
      "data": [
        {"name": "id", "value": ""}
      ]
    },{
      "href": "http://example.com/contacts/2",
      "data": [
        {"name": "id", "value": "1"}
      ]
    }]
  }
}

@glanotte

ok, i think i see what you're saying. you want an error property on the item, not the data element (as i suggested) and not just on the representation (where it is now).

so, are you ok, w/ a single string ("itemerror" : "not valid" )?
would a boolean work just as well ("itemerror" : "true")?
do you really need an object here? ("itemerror" : {"code" : "123", "message" : "invalid object"})?

do you plan do use something at the data level at some point?
in human-drive UIs, how do you see this "itemerror" being handled? rendered as a message? something else?