[英]Realm objects returns nil after adding
當用戶登錄時,我創建了一個Person對象:
let creds = SyncCredentials.jwt(accessToken)
SyncUser.logIn(with: creds, server: Constants.syncAuthURL, onCompletion: { [weak self](user, err) in
if let user = user {
self?.setDefaultRealmConfiguration(with: user)
let realm = try! Realm()
let identity = (user.identity)!
let person = Person()
person.id = identity
try! realm.write {
realm.add(person, update: true)
}
self?.performSegue(withIdentifier: "showProfile", sender: self)
}
})
該人員已在雲服務器上成功創建。
在下一個viewcontroller中,我想根據ID來獲取對象:
let realm = try! Realm()
guard let uuid = SyncUser.current?.identity! else { return }
let person = realm.objects(Person.self).filter("id = %@", uuid).first
try! realm.write {
person?.name = "test"
}
這個人總是零,我也嘗試用主鍵查詢對象,但是沒有成功。
Person類看起來像:
class Person : Object {
@objc dynamic var id = ""
@objc dynamic var created: Date = Date()
@objc dynamic var name = ""
@objc dynamic var email = ""
@objc dynamic var avatar : Data?
override static func primaryKey() -> String? {
return "id"
}
}
UPDATE
我創建了一個只有一個Viewcontroller和Person類的新應用程序:
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let creds = SyncCredentials.usernamePassword(username: "admin", password: "test")
SyncUser.logIn(with: creds, server: Constants.AUTH_URL, onCompletion: { (user, err) in
if let user = user {
var config = user.configuration(realmURL: Constants.REALM_URL)
config.objectTypes = [Person.self]
Realm.asyncOpen(configuration: config, callback: { (realm, error) in
guard let realm = realm else {return}
let objects = realm.objects(Person.self)
print(objects) // always empty why???
try! realm.write {
let p = Person()
p.id = "test"
realm.add(p)
}
print(objects) // one object
})
}
})
}
}
就像我的其他問題一樣,此人已成功添加到雲中。 但是當我重新啟動應用程序時,第一個查詢中的對象為空。 也許我想念對同步領域有所了解的東西?
let results = realm.objects(Person.self)
let subscription = results.subscribe()
print(results)
解決我的問題
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