ios - AlamoFireObjectMapper 无法在对象数组中保存数据响应

Question

我正在使用 AlamoFireObjectMapper 尝试将一些简单的 JSON 映射到一些类模型。似乎我能够正确检索 JSON 并打印它，但是当我尝试将我的响应附加到我的类类型的数组时，它不起作用。

示例 JSON:

class MovieResults: Mappable {

var movieResults: [MovieInfo]?

required init?(map: Map) {
    mapping(map: map)
   }

func mapping(map: Map) {
    // An array of objects
    self.movieResults <- map["results"]
   }
}

class MovieInfo: Mappable {

var movieTitle: String?
var movieID: Int?
var movieRating: String?
var movieReleaseDate: String?
var inTheaters: Bool?

var movieResults: [MovieInfo]?


required init?(map: Map) {

}

func mapping(map: Map) {
    self.movieTitle <- map["title"]
    self.movieID <- map["id"]
    self.movieRating <- map["rating"]
    self.movieReleaseDate <- map["release_date"]
    self.inTheaters <- map["in_theaters"]
   }
}

View Controller :

class resultViewController: UITableViewController {

var searchTerm: String?
var movieArray = [MovieInfo]()

override func viewDidLoad() {
    super.viewDidLoad()
    fetchAPI(search: searchTerm!)
}

func fetchAPI(search: String) {
    let gboxAPI = "rK5M0dCTUd268hk121BpNpEAxMOmFuNh"
    let URL = "http://api-public.guidebox.com/v1.43/US/\(gboxAPI)/search/movie/title/\(searchTerm!)/fuzzy"


    Alamofire.request(URL).responseObject { ( response: DataResponse<MovieResults>) in

        let result = response.result.value

        if let movies = result?.movieResults {
            for item in movies {
                self.movieArray.append(item) //this doesn't work
                print(item.movieTitle) //this works
            }
        }
    }

    /* This doesn't print anything
        for some reason my array isn't truly being 
        popluated in the above fetchAPI call
    */
    for item in movieArray {
        print(item.movieTitle)
    }

}
override func tableView(_ tablView: UITableView,
                        numberOfRowsInSection section: Int) -> Int {
    return movieArray.count
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = UITableViewCell(style: .value1, reuseIdentifier: "UITableViewCell")

    let movieItem = movieArray[indexPath.row]

    cell.textLabel?.text = movieItem.movieTitle
    cell.detailTextLabel?.text = movieItem.movieRating

    return cell

    }
}

我这辈子都想不通为什么我可以打印，但不能存储我的数据。这就是不合我意。

Answer 1

您可能无法创建 Mappable 类的对象以便向其附加数据。相反，您可以创建另一个模型类并使用它的对象。

class movieModel: NSObject {
    var movieTitle: String?
    var movieID: Int?
    var movieRating: String?
    var movieReleaseDate: String?
    var inTheaters: Bool?
}

现在在 resultViewController 中创建这个类的对象，并用它来存储电影细节。

class resultViewController: UITableViewController {
    let movieArray: [movieModel]? //create array of movieModel object
    .......
      ........
        if let movies = result?.movieResults {
           for item in movies {
              let movie = movieModel()//create object of movieModel
              movie.movieTitle = item.movieTitle
              movie.movieID = item.movieID
              movie.movieRating = item.movieRating
              movie.movieReleaseDate = item.movieReleaseDate
              movie.inTheaters = item.inTheaters

              self.movieArray.append(self.movie)
              print(item.movieTitle)
           }
       }
    ........
}