如何在CoreData中保存旋转图像并显示旋转图像？

// 创建数据模型
class ImageEntity: NSManagedObject {
    @NSManaged var imageData: Data?
    @NSManaged var rotationAngle: Float
}

// 保存旋转图像
func saveRotatedImage(image: UIImage, rotationAngle: Float) {
    guard let appDelegate = UIApplication.shared.delegate as? AppDelegate else {
        return
    }
    
    let managedContext = appDelegate.persistentContainer.viewContext
    let entity = NSEntityDescription.entity(forEntityName: "ImageEntity", in: managedContext)!
    let imageEntity = NSManagedObject(entity: entity, insertInto: managedContext) as! ImageEntity
    
    imageEntity.imageData = image.jpegData(compressionQuality: 1.0)
    imageEntity.rotationAngle = rotationAngle
    
    do {
        try managedContext.save()
    } catch let error as NSError {
        print("Could not save image. \(error), \(error.userInfo)")
    }
}

// 显示旋转图像
func displayRotatedImage() {
    guard let appDelegate = UIApplication.shared.delegate as? AppDelegate else {
        return
    }
    
    let managedContext = appDelegate.persistentContainer.viewContext
    let fetchRequest = NSFetchRequest<NSFetchRequestResult>(entityName: "ImageEntity")
    
    do {
        let results = try managedContext.fetch(fetchRequest) as! [ImageEntity]
        if let imageEntity = results.first, let imageData = imageEntity.imageData {
            let image = UIImage(data: imageData)
            let rotationAngle = CGFloat(imageEntity.rotationAngle)
            
            let rotatedImage = image?.rotate(by: rotationAngle) // 自定义的旋转方法
            
            // 在界面上显示旋转后的图像
            imageView.image = rotatedImage
        }
    } catch let error as NSError {
        print("Could not fetch image. \(error), \(error.userInfo)")
    }
}