Question

enter image description here我正在尝试从领域查询对象

class MessageRealm: Object {
dynamic var fromId = String()
dynamic var messageID = String()
dynamic var textDownloadded = String()
override class func primaryKey() -> String? {
    return "messageID"
  }
}

class UsersRealm: Object {
dynamic var sender = String()    
let msgs = List<MessageRealm>()
override class func primaryKey() -> String? {
        return "sender"
    }
}

我有两个用于消息的一个类，另一个用于用户，每个用户都有一个消息列表，我需要根据（UserRealm.sender）查询该消息 This is the realm DB

Answer 1

如果有人面对同样的话，我会通过这种方式解决问题

var messageIndex: Results<MessageRealm>!
let realm = try! Realm()
let mssagesRealm = realm.objects(UsersRealm.self).filter("sender = %@", userTitleName)

   for sub in mssagesRealm {
       messageIndex = sub.msgs.sorted(byKeyPath: "timeStamp")
      }

从领域列表中查询对象

1 个答案: