関係クラスを使ってデータをcoredataに保存しますか？

Question

私はクラスを1つ持っていますPlace &他のクラスはAddressです。私は1つの関係を作成しているので、今は1つの場所だけが1つのアドレスを持っているので、私は場所を保存しようとしているとき私はそれを行うことができません。私はこの機能について書きました。

if #available(iOS 10, *) { 
      placeInfo = NSEntityDescription.insertNewObject(forEntityName: "PlaceInfo", into: appDelegate.persistentContainer.viewContext) as? PlaceInfo 
     } else { 
      placeInfo = NSEntityDescription.insertNewObject(forEntityName: "PlaceInfo", into: appDelegate.managedObjectContext!) as? PlaceInfo 
     } 
      var cordinates:[String] = [] 
      placeInfo?.title = Place.shared.title ?? "" 
      placeInfo?.desc = Place.shared.desc ?? "" 
      placeInfo?.id = "Place_" + String(Utility.shared.currentTimeStamp()) 
      let spotLocation = Place.shared.address 

      if let lat = spotLocation?.lat, let long = spotLocation?.long { 
       cordinates = [lat.toString(),long.toString()] 
      } 
      let address = NSEntityDescription.insertNewObject(forEntityName: "PlaceAddress", into: appDelegate.managedObjectContext!) as? PlaceAddress 
      address?.street = "Street" 
      address?.landmark = "LANDMARK" 
      address?.city = "MYCITY" 
      address?.state = "SATTE" 
      address?.state = "INDIA" 
      address?.pincode = "1256325" 

      placeInfo?.isuploaded = true 
      if let spotid = placeInfo?.id { 
       // saveMediaToDB(id: spotid) 
      } 
      placeInfo?.address_rel = address 

Placeinfoクラス

import Foundation 
import CoreData 


extension PlaceInfo { 

    @nonobjc public class func fetchRequest() -> NSFetchRequest<PlaceInfo> { 
     return NSFetchRequest<PlaceInfo>(entityName: "PlaceInfo") 
    } 

    @NSManaged public var desc: String? 
    @NSManaged public var hasmedia: Bool 
    @NSManaged public var id: String? 
    @NSManaged public var isuploaded: Bool 
    @NSManaged public var title: String? 
    @NSManaged public var address_rel: PlaceAddress? 
    @NSManaged public var files_rel: NSSet? 

} 

// MARK: Generated accessors for files_rel 
extension PlaceInfo { 

    @objc(addFiles_relObject:) 
    @NSManaged public func addToFiles_rel(_ value: FilesInfo) 

    @objc(removeFiles_relObject:) 
    @NSManaged public func removeFromFiles_rel(_ value: FilesInfo) 

    @objc(addFiles_rel:) 
    @NSManaged public func addToFiles_rel(_ values: NSSet) 

    @objc(removeFiles_rel:) 
    @NSManaged public func removeFromFiles_rel(_ values: NSSet) 

} 

Answer 1

あなたは、コードの以下の行を追加しましたか？

do { 
    try managedObjectContext.save() 
} catch { 
    fatalError("Failure to save context: \(error)") 
}