No Json deserializer found for type Option[reactivemongo.bson.BSONObjectID]
Strange!My Intellij IDEA 12 didn't recognise the import and when I optimised the imports
import play.modules.reactivemongo.json.BSONFormats._was removed which created the error.
One could also create a custom Format object to translate the BSONObjectID to json.
implicit object BSONObjectIDFormat extends Format[BSONObjectID] { def writes(objectId: BSONObjectID): JsValue = JsString(objectId.toString()) def reads(json: JsValue): JsResult[BSONObjectID] = json match { case JsString(x) => { val maybeOID: Try[BSONObjectID] = BSONObjectID.parse(x) if(maybeOID.isSuccess) JsSuccess(maybeOID.get) else { JsError("Expected BSONObjectID as JsString") } } case _ => JsError("Expected BSONObjectID as JsString") } }But the import is enough in this case.