嗨我建立具有項目關係到自身報紙數據庫(項目可以有很多其他項目如兒童)SWIFT核心數據關係一對多對自己的實體
這裏是我的NSmanageObjectSubclass
import Foundation
import CoreData
extension Item {
@NSManaged var by: String?
@NSManaged var dead: NSNumber?
@NSManaged var descendants: NSNumber?
@NSManaged var id: NSNumber?
@NSManaged var isdeleted: NSNumber?
@NSManaged var score: NSNumber?
@NSManaged var text: String?
@NSManaged var time: NSDate?
@NSManaged var title: String?
@NSManaged var type: String?
@NSManaged var url: String?
@NSManaged var kids: NSSet?
@NSManaged var parent: Item?
@NSManaged var parts: NSSet?
}
問題是我該如何將item
添加到屬性kids: NSSet
這個關係的定義對於自己來說是一對多的反轉。任何幫助非常感謝。謝謝。
你加在XCDataModel關係後關係? – Harsh
是的,我設置一對多關係與項目 –