ios - AlamofireCoreData Pod

Question

我正在尝试使用 AlamofireCoreData Pod，但遇到了问题。每个值都为零； (请参阅下面的控制台日志消息)

这是我的核心数据，新闻类

extension News {

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

    @NSManaged public var content: String?
    @NSManaged public var created_at: NSDate?
    @NSManaged public var date_pub_beg: NSDate?
    @NSManaged public var date_pub_end: NSDate?
    @NSManaged public var id: Int16
    @NSManaged public var results: Bool
    @NSManaged public var rotation: Bool
    @NSManaged public var summary: String?
    @NSManaged public var title: String?
    @NSManaged public var updated_at: NSDate?

}

在我的 swift 文件中我这样做

private var appDelegate = UIApplication.shared.delegate as! AppDelegate
private let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext

func getNews(url: String, completion: @escaping (Bool) -> Void)  {

        Alamofire.request(url).responseInsert(context: context, type: Many<News>.self) { response in
            switch response.result {
            case let .success(news):
                print (news)
                completion(true)
            case .failure:
                // handle error
                completion(false)

                print("Erreur")
            }
        }
    }

在控制台日志中调用我的 func print this，对 api 的调用似乎可以工作，但似乎没有数据被解析。

[<News: 0x60800009fef0> (entity: News; id: 0x60800003c880 <x-coredata:///News/tBB28D896-033A-4084-807A-6A31993B8F2F2> ; data: {
    content = nil;
    "created_at" = nil;
    "date_pub_beg" = nil;
    "date_pub_end" = nil;
    id = 0;
    results = nil;
    rotation = nil;
    summary = nil;
    title = nil;
    "updated_at" = nil;
}), <News: 0x608000282170> (entity: News; id: 0x60800003ba00 <x-coredata:///News/tBB28D896-033A-4084-807A-6A31993B8F2F3> ; data: {
    content = nil;
    "created_at" = nil;
    "date_pub_beg" = nil;
    "date_pub_end" = nil;
    id = 0;
    results = nil;
    rotation = nil;
    summary = nil;
    title = nil;
    "updated_at" = nil;
})]

这是我的 API 发送的内容，JSON REST API 使用 Rails 制作。

[
    {
        id: 2,
        title: "Victoire de la France",
        date_pub_beg: "2017-11-27",
        date_pub_end: "2017-12-31",
        summary: "La France remporte la Coupe Davis.",
        content: "<div>Au terme du dernier match, la France remporte la <strong>Coupe Davis.</strong></div>",
        created_at: "2017-11-27T14:18:07.527Z",
        updated_at: "2017-11-27T14:18:07.527Z",
        results: false,
        rotation: false
    },
    {
        id: 1,
        title: "Test d'article",
        date_pub_beg: "2017-09-05",
        date_pub_end: "2017-09-06",
        summary: "Ceci est un test, AH BON ?",
        content: "<div><strong>Petit test pour voir !</strong></div><ul><li>test 1</li><li>test 2</li><li>test 3</li></ul><div><br></div>",
        created_at: "2017-09-05T07:43:18.011Z",
        updated_at: "2017-11-27T14:42:18.907Z",
        results: false,
        rotation: false
    }
]

一切似乎都很好，不明白为什么那些零值。

有什么想法吗？

非常感谢

Answer 1

我使用的 Alamofire 有点不同，但效果很好。我从来没有像你一样见过这个实现。试试这个

func getNews(url: String, completion: @escaping (Bool) -> Void)  {        
    var alamoFireManager : Alamofire.SessionManager?
    alamoFireManager?.request(url, method: .get, encoding: JSONEncoding.default, headers:nil)
        .responseJSON { (response) in
            switch response.result {
            case .success:
                print(response.result.value!)
                completion(true)
            case .failure(let error):
                print(error.localizedDescription)
                completion(false)
            }
    }
}

如果您有一些身份验证 header ，您可以将其作为数组放置在 headers 参数中["Authorization":yourkey]

作为补充，我使用 alamoFireManager 作为单例(全局)。

我有这个扩展来帮助调试:

extension Request {
    public func debugLog() -> Self {
        #if DEBUG
            debugPrint(self)
        #endif
        return self
    }
}

用途:

func getNews(url: String, completion: @escaping (Bool) -> Void)  {        
    var alamoFireManager : Alamofire.SessionManager?
    alamoFireManager?.request(url, method: .get, encoding: JSONEncoding.default, headers:nil)
        .debugLog() // <<<-----
        .responseJSON { (response) in
            switch response.result {
            case .success:
                print(response.result.value!)
                completion(true)
            case .failure(let error):
                print(error.localizedDescription)
                completion(false)
            }
    }
}

它将打印您的请求

好机会