Я вижу много подобных вопросов в переполнении стека, но, похоже, никто не похож на мой случай. Я новичок в совмещении работы с фреймами, и мне потребовался весь этот день, чтобы выяснить, в чем дело, но все еще застрял здесь ...
Xcode выдает мне ошибку ниже, что я делаю, используя API TMDB и декодировать его в мою модель актера. И это не удалось на этой линии let result = try self.decoder.decode(TMDBActorsResult.self, from: output.data). Не могли бы вы дать мне подсказку, что происходит с этим adult?
ОШИБКА: keyNotFound (CodingKeys (stringValue: "adult", intValue: nil), Swift.DecodingError.Context (codingPath: [CodingKeys (stringValue: «результаты», intValue: nil), _JSONKey (stringValue: «Index 0», intValue: 0), CodingKeys (stringValue: «knownFor», intValue: nil), _JSONKey (stringValue: «Index 0», intValue: 0)], debugDescription: "Нет значения, связанного с ключом CodingKeys (stringValue: \" adult \ ", intValue: nil) (\" adult \ ").", underError: nil))
Также я проверяю, работает ли URL, и вот возвращаемые данные из TMDB API:
/// Модель для актера
import SwiftUI
struct TMDBActorsResult: Codable {
let page: Int?
let results: [Actor]
let totalResults: Int?
let totalPages: Int?
}
struct Actor: Codable {
let profilePath: String?
let adult: Bool
let id: Int?
let name: String?
let popularity: CGFloat?
let knownFor: [Production]?
let knownForDepartment: String?
let gender: Int?
}
// MARK: Used for two objects with media type = (Movie or TV)
struct Production: Codable {
let posterPath: String?
let adult: Bool
let overview: String?
let releaseDate: String?
let originalTitle: String?
let genreIds: [Int]?
let id: Int?
let mediaType: String?
let originalLanguage: String?
let title: String?
let backdropPath: String?
let popularity: Double?
let voteCount: Int?
let video: Bool
let voteAverage: Double?
let firstAirDate: String?
let originCountry: [String]?
let name: String?
let originalName: String?
}
/// Декодер JSON.
import Foundation
import Combine
enum HTTPError: LocalizedError {
case statusCode
case post
}
struct WebService {
private var decoder: JSONDecoder = {
let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase
return decoder
}()
private var session: URLSession = {
let config = URLSessionConfiguration.default
config.urlCache = URLCache.shared
config.waitsForConnectivity = true
config.requestCachePolicy = .reloadIgnoringLocalCacheData
return URLSession(configuration: config, delegate: nil, delegateQueue: nil)
}()
private func createPublisher<T: Codable>(for url: URL) -> AnyPublisher<T, Error> {
print("Pblisher URL: \(url)")
return session.dataTaskPublisher(for: url)
.tryMap { output in
guard let response = output.response as? HTTPURLResponse, response.statusCode == 200 else {
print("Response: \(output.response)")
do {
let ss = try self.decoder.decode(Response.self, from: output.data)
print("ss: \(ss)")
} catch {
print(error)
}
throw HTTPError.statusCode
}
do {
let result = try self.decoder.decode(TMDBActorsResult.self, from: output.data)
print("Result: \(result)")
} catch {
print("ERROR: \(error)")
}
return output.data
}
.decode(type: T.self, decoder: decoder)
.eraseToAnyPublisher()
}
func getSectionsPublisher() -> AnyPublisher<TMDBActorsResult, Error> {
createPublisher(for: TMDBClient.Endpoints.popularActors.url).eraseToAnyPublisher()
}
}
/ / / Обновление, Как комментарий vadian, я пытаюсь изменить свою модель данных на использование значения, связанного с перечислением, как показано в коде ниже, но это дает мне ошибку Instance method 'decode(_:forKey:)' requires that 'MediaType' conform to 'Decodable'. Я сообщаю, что отличается то, что моя модель использует type в элементах, но не в структуре root Media.
let jsonString = """
[{"name": "Popular Movies",
"description": "Basic movie description",
"items": [ { "id": 15, "budget": 10, "type": "movies","name": "Sample movie", "movieSPT": ""}]
},
{"name": "Popular TV Shows",
"description": "Basic shows description",
"items": [ { "id": 15, "adult": false, "type": "tvshows","title": "Sample show", "showSPT": ""}]
}
]
"""
let data = Data(jsonString.utf8)
struct Movie : Decodable {
let id: Int
let name, movieSPT: String
let type: String
let budget: Int
}
struct TVShow : Decodable {
let id: Int
let title, showSPT: String
let type: String
let adult: Bool
}
enum MediaType {
case movie([Movie]), tvShow([TVShow])
}
struct Media : Decodable {
let name : String
let description : String
let items : MediaType
private enum CodingKeys : String, CodingKey { case name, description, type, items }
init(from decoder : Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
self.name = try container.decode(String.self, forKey: .name)
self.description = try container.decode(String.self, forKey: .description)
self.items = try container.decode(MediaType.self, forKey: .items)
// type = try container.decode(String.self, forKey: .type)
if items.type == "movies" {
let movieData = try container.decode([Movie].self, forKey: .items)
// print("AAA: \(movieData)")
items = .movie(movieData)
} else { // add better error handling
let showData = try container.decode([TVShow].self, forKey: .items)
items = .tvShow(showData)
}
}
}
do {
let result = try JSONDecoder().decode([Media].self, from: data)
print(result)
} catch {
print(error)
}
Добавить JSON Данные , known_for - это [объект], объект которого может быть типом * Mov ie или типом TV.
{
"page": 1,
"total_results": 10000,
"total_pages": 500,
"results": [
{
"popularity": 57.168,
"known_for_department": "Acting",
"name": "Thassapak Hsu",
"id": 1910848,
"profile_path": "/1fmjgN8EvDj1TiEJk2Zs4y0T40O.jpg",
"adult": false,
"known_for": [
{
"original_name": "萌妻食神",
"genre_ids": [
35,
10765,
10766
],
"media_type": "tv",
"name": "Cinderella Chef",
"origin_country": [],
"vote_count": 5,
"first_air_date": "2018-04-23",
"backdrop_path": "/rnzmWKEiWPb8GC1mlqQojj8ccWj.jpg",
"original_language": "zh",
"id": 79574,
"vote_average": 9,
"overview": "",
"poster_path": "/xb40Li6ff1BK0pVOxV4lutssCrR.jpg"
},
{
"original_name": "外星女生柴小七",
"genre_ids": [
35,
10765
],
"media_type": "tv",
"name": "My Girlfriend is an Alien",
"origin_country": [
"CN"
],
"vote_count": 2,
"first_air_date": "2019-08-19",
"backdrop_path": "/kCl7piWv3pypgYfyLFi7ZgFGlYV.jpg",
"original_language": "zh",
"id": 92779,
"vote_average": 9,
"overview": "The alien girl Chai Xiaoqi tells the story of Fang Xiaoqi, the overbearing president of the alien girl who died from the \"Cape Town Planet\", who was suffering from the \"rainy weather heterosexual amnesia\". A high-energy hilarious and romantic cross-star love story. The female host Chai Xiaoqi is not only an alien, but also a true-handed witch. Once she inhales the hormones emitted by the males in the earth, she will fall into the \"flowery state\" and suffer from various diseases. The fun and ridiculously ridiculous romance will restore the singularity of the girl in the perfection of the girl. In order to survive on the human earth, Chai Xiaoqi will use his various super powers to solve one accident after another, like a roller coaster. The ups and downs will make the audience hooked. The male lord is cold and is an alternative overbearing president. When it rains, he will forget the opposite sex that appears around him. For this reason, he and the female host will launch various \"fighting and fighting\" laughter dramas. The experience of high sweetness and romance is expected to be Strongly slammed the girl's heart when it was broadcast.",
"poster_path": "/5e2owvs9TWVsuIacTFxJGPp6KVW.jpg"
},
{
"original_name": "Devil Lover เผลอใจ..ให้นายปีศาจ",
"id": 74640,
"media_type": "tv",
"name": "Devil Lover เผลอใจ..ให้นายปีศาจ",
"vote_count": 0,
"vote_average": 0,
"first_air_date": "2015-10-07",
"poster_path": "/moThN7iERydEHI2RbfrmhCp69R4.jpg",
"genre_ids": [
35
],
"original_language": "th",
"backdrop_path": "/iRYOwW6DRIRwDYVmRWA8nbfaV2c.jpg",
"overview": "",
"origin_country": [
"TH"
]
}
],
"gender": 2
},
{
"popularity": 39.35,
"known_for_department": "Acting",
"gender": 1,
"id": 2487703,
"profile_path": "/jRdDoFoHq36hg4kYxxiLa5DRYUW.jpg",
"adult": false,
"known_for": [
{
"poster_path": "/d9PhCnofBEeQGR3lwywTjWKBiXj.jpg",
"id": 449924,
"vote_count": 346,
"video": false,
"media_type": "movie",
"adult": false,
"backdrop_path": "/ekP6EVxL81lZ4ivcqPsoZ72rY0h.jpg",
"genre_ids": [
28,
18,
36
],
"original_title": "葉問4",
"original_language": "cn",
"title": "Ip Man 4: The Finale",
"vote_average": 6,
"overview": "Following the death of his wife, Ip Man travels to San Francisco to ease tensions between the local kung fu masters and his star student, Bruce Lee, while searching for a better future for his son.",
"release_date": "2019-12-20"
}
],
"name": "Vanda Lee"
},
{
"popularity": 28.664,
"known_for_department": "Acting",
"gender": 1,
"id": 556435,
"profile_path": "/5MgWM8pkUiYkj9MEaEpO0Ir1FD9.jpg",
"adult": false,
"known_for": [
{
"release_date": "2019-05-30",
"id": 496243,
"vote_count": 5120,
"video": false,
"media_type": "movie",
"vote_average": 8.6,
"title": "Parasite",
"genre_ids": [
35,
18,
53
],
"original_title": "기생충",
"original_language": "ko",
"adult": false,
"backdrop_path": "/TU9NIjwzjoKPwQHoHshkFcQUCG.jpg",
"overview": "All unemployed, Ki-taek's family takes peculiar interest in the wealthy and glamorous Parks for their livelihood until they get entangled in an unexpected incident.",
"poster_path": "/7IiTTgloJzvGI1TAYymCfbfl3vT.jpg"
},
....