I am new to swift. This is my Item.swift.
import SwiftData
@Model
final class Item: Codable {
var id: String
var soundId: String
var soundAppleId: String
var soundType: String
var type: String
var authorId: String
var text: String
var createdAt: Date
var actionsCount: Int
var chainsCount: Int
var rating: Int
var loved: Bool
var replay: Bool
var heartedByUser: Bool
@Relationship var author: Author?
init(id: String, soundId: String, soundAppleId: String, soundType: String, type: String, authorId: String, text: String, createdAt: Date, actionsCount: Int, chainsCount: Int, ratings: Int, loved: Bool, replay: Bool, heartedByUser: Bool, author: Author) {
self.id = id
self.soundId = soundId
self.soundAppleId = soundAppleId
self.soundType = soundType
self.type = type
self.authorId = authorId
self.text = text
self.createdAt = createdAt
self.actionsCount = actionsCount
self.chainsCount = chainsCount
self.rating = ratings
self.loved = loved
self.replay = replay
self.heartedByUser = heartedByUser
self.author = author
}
private enum CodingKeys: String, CodingKey {
case id
case soundId = "sound_id"
case soundAppleId = "sound_apple_id"
case soundType = "sound_type"
case type
case authorId = "author_id"
case text
case createdAt = "created_at"
case actionsCount = "actions_count"
case chainsCount = "chains_count"
case rating
case loved
case replay
case heartedByUser
case author
}
required init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
id = try container.decode(String.self, forKey: .id)
soundId = try container.decode(String.self, forKey: .soundId)
soundAppleId = try container.decode(String.self, forKey: .soundAppleId)
soundType = try container.decode(String.self, forKey: .soundType)
type = try container.decode(String.self, forKey: .type)
authorId = try container.decode(String.self, forKey: .authorId)
text = try container.decode(String.self, forKey: .text)
let dateString = try container.decode(String.self, forKey: .createdAt)
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"
if let date = formatter.date(from: dateString) {
createdAt = date
} else {
throw DecodingError.dataCorruptedError(forKey: .createdAt,
in: container,
debugDescription: "Date string does not match format expected by formatter.")
}
actionsCount = try container.decode(Int.self, forKey: .actionsCount)
chainsCount = try container.decode(Int.self, forKey: .chainsCount)
rating = try container.decode(Int.self, forKey: .rating)
loved = try container.decode(Bool.self, forKey: .loved)
replay = try container.decode(Bool.self, forKey: .replay)
heartedByUser = try container.decode(Bool.self, forKey: .heartedByUser)
author = try container.decode(Author.self, forKey: .author)
}
func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
try container.encode(id, forKey: .id)
try container.encode(soundId, forKey: .soundId)
try container.encode(soundAppleId, forKey: .soundAppleId)
try container.encode(soundType, forKey: .soundType)
try container.encode(type, forKey: .type)
try container.encode(authorId, forKey: .authorId)
try container.encode(text, forKey: .text)
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd"
let dateString = formatter.string(from: createdAt)
try container.encode(dateString, forKey: .createdAt)
try container.encode(actionsCount, forKey: .actionsCount)
try container.encode(chainsCount, forKey: .chainsCount)
try container.encode(rating, forKey: .rating)
try container.encode(loved, forKey: .loved)
try container.encode(replay, forKey: .replay)
try container.encode(heartedByUser, forKey: .heartedByUser)
try container.encode(author, forKey: .author)
}
}
@Model
final class Author: Codable {
var id: String
var image: URL
var username: String
var bio: String?
init(id: String, image: URL, username: String, bio: String?) {
self.id = id
self.image = image
self.username = username
self.bio = bio
}
private enum CodingKeys: String, CodingKey {
case id
case image
case username
case bio
}
required init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
id = try container.decode(String.self, forKey: .id)
image = try container.decode(URL.self, forKey: .image)
username = try container.decode(String.self, forKey: .username)
bio = try container.decodeIfPresent(String.self, forKey: .bio)
}
func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
try container.encode(id, forKey: .id)
try container.encode(image, forKey: .image)
try container.encode(username, forKey: .username)
try container.encodeIfPresent(bio, forKey: .bio)
}
}
In my ItemView when I try to access something inside author, Swift preview crashes.
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 SwiftData 0x1cb459e90 0x1cb3d3000 + 552592
1 SwiftData 0x1cb45ba7c 0x1cb3d3000 + 559740
2 SwiftData 0x1cb45e5f8 0x1cb3d3000 + 570872
3 SwiftData 0x1cb4190e4 0x1cb3d3000 + 286948
4 audition 0x100b436e0 Item.author.getter + 320 (@__swiftmacro_8audition4ItemC6author18_PersistedPropertyfMa_.swift:9)
5 ContentView.1.preview-thunk.dylib 0x105f23a20 closure #1 in closure #1 in closure #1 in closure #1 in ItemCard.__preview__body.getter + 820 (ContentView.swift:89)
6 SwiftUI 0x1cba41308 0x1cb47b000 + 6054664
7 ContentView.1.preview-thunk.dylib 0x105f22ee4 closure #1 in closure #1 in closure #1 in ItemCard.__preview__body.getter + 472 (ContentView.swift:84)
8 SwiftUI 0x1cc2e6c40 0x1cb47b000 + 15121472
9 ContentView.1.preview-thunk.dylib 0x105f228b8 closure #1 in closure #1 in ItemCard.__preview__body.getter + 388 (ContentView.swift:83)
...
Kuralay.
