小编dos*_*der的帖子

我正在创建一个使用restkit的IOS应用程序,我能够做GET请求没有问题,并且它正确地映射了一切但是,我无法让restkit对数据库进行POST.它正在回应说:

`{"errors":{"email":["can't be blank"],"password":["can't be blank"]}}`

我感觉这个物体没有被发送.这是我在我的app委托中设置所有映射的代码.

RKObjectMapping *userMapping     = [RKObjectMapping mappingForClass:[User       class]];
RKObjectMapping *dogMapping      = [RKObjectMapping mappingForClass:[Dog        class]];
RKObjectMapping *posttimeMapping = [RKObjectMapping mappingForClass:[PostTime   class]];
RKObjectMapping *postMapping     = [RKObjectMapping mappingForClass:[Post       class]];
RKObjectMapping *activityMapping = [RKObjectMapping mappingForClass:[Activity   class]];

        // set up which attributes go where
[userMapping        addAttributeMappingsFromDictionary:[User propertyMappings]];
[dogMapping         addAttributeMappingsFromDictionary:[Dog propertyMappings]];
[posttimeMapping    addAttributeMappingsFromDictionary:[PostTime propertyMappings]];
[postMapping        addAttributeMappingsFromDictionary:[Post propertyMappings]];
[activityMapping    addAttributeMappingsFromDictionary:[Activity propertyMappings]];

        // set up relationships
[userMapping        addRelationshipMappingWithSourceKeyPath:@"dogs"         mapping:dogMapping];
[dogMapping         addRelationshipMappingWithSourceKeyPath:@"timeline"     mapping:posttimeMapping];
[posttimeMapping    addRelationshipMappingWithSourceKeyPath:@"posts"        mapping:postMapping];
[postMapping        addRelationshipMappingWithSourceKeyPath:@"activities"   mapping:activityMapping];


    // what to print
RKLogConfigureByName("RestKit/Network", …

我试图改变UIViewControllerRepresentable的@State，并注意到updateUIViewController(_ uiViewController:context:)我后不会被调用。

我不知道这是一个错误还是我做错了什么。

例如：

struct ContentView: UIViewControllerRepresentable {
  @State var blah: Int = 0

  func makeUIViewController(context: UIViewControllerRepresentableContext<ContentView>) -> UIViewController {
    let vc = UIViewController()
    let button = UIButton(frame: CGRect(x: 40, y: 40, width: 100, height: 100))
    button.setTitle("Next", for: .normal)
    button.addTarget(context.coordinator, action: #selector(context.coordinator.nextPressed), for: .primaryActionTriggered)
    vc.view.addSubview(button)
    return vc
  }

  func updateUIViewController(_ uiViewController: UIViewController, context: UIViewControllerRepresentableContext<ContentView>) {
    // Not being called when `blah` is updated.
    var random = SystemRandomNumberGenerator()
    let red = CGFloat(Double(random.next() % 255) / …