Hi all,
I am trying to persist some data using SwiftData, I have two models:
- Page
- Line
The models are connected by a relationship like this:
import SwiftData
@Model final class Page {
var id: UUID
var created_at: Date
var title: String
var pinned: Bool
@Relationship(deleteRule: .cascade) var lines: [Line] = []
init(id: UUID = UUID(), created_at: Date = .now, title: String = "", pinned: Bool = false) {
self.id = id
self.created_at = created_at
self.title = title
self.pinned = pinned
self.lines = lines
}
}
import SwiftData
@Model final class Line: Identifiable {
var id: UUID
var input: String
var output: String
var keyword: Bool
@Relationship(inverse: \Page.lines) var page: Page
init(id: UUID = UUID(), input: String = "", output: String = "", keyword: Bool = false, page: Page) {
self.id = id
self.input = input
self.output = output
self.keyword = keyword
self.page = page
}
}
I attached the modelCOntainer to the Window
WindowGroup {
ContentView()
}
.modelContainer(for: Page.self)
And in my ContentView I am able to query and I get an empty array:
@Query(sort: [SortDescriptor(\Page.created_at, order: .reverse)], animation: .spring) var pages: [Page]
However, when I try to insert a page or a line my app crashes:
func addSample() {
let page = Page()
context.insert(page)
}
CrashReporter Key: 8570AF55-7ED0-39AC-F6D4-0322CC485E65
Hardware Model: Mac14,9
Process: Equals [47925]
Path: /Users/USER/Library/Developer/Xcode/UserData/Previews/Simulator Devices/2652B05A-811D-4E76-8C11-833748962497/data/Containers/Bundle/Application/23A01A2A-1FB4-4A4F-A542-74637D044F4C/Equals.app/Equals
Identifier: com.jonathangiardino.Equals
Version: 1.0 (1)
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd_sim [43814]
Coalition: com.apple.CoreSimulator.SimDevice.2652B05A-811D-4E76-8C11-833748962497 [90202]
Responsible Process: SimulatorTrampoline [64001]
Date/Time: 2023-11-04 17:32:37.5567 +0100
Launch Time: 2023-11-04 17:30:42.6200 +0100
OS Version: macOS 13.5 (22G74)
Release Type: User
Report Version: 104
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x000000018c985be8
Termination Reason: SIGNAL 5 Trace/BPT trap: 5
Terminating Process: exc handler [47925]
Triggered by Thread: 0
Kernel Triage:
VM - (arg = 0x0) pmap_enter retried due to resource shortage
VM - (arg = 0x0) pmap_enter retried due to resource shortage
VM - (arg = 0x0) pmap_enter retried due to resource shortage
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libswiftCore.dylib 0x18c985be8 _assertionFailure(_:_:file:line:flags:) + 248
1 SwiftData 0x1a89d5724 specialized static ModelContainer.currentContainer(_:) + 692
2 SwiftData 0x1a8a4f5d0 _DefaultBackingData.init(for:) + 248
3 SwiftData 0x1a8a5419c _DefaultBackingData.__allocating_init(for:) + 52
4 SwiftData 0x1a8a11438 static PersistentModel.createBackingData<A>() + 72
5 Equals 0x1023a6e84 Page.init(id:created_at:title:pinned:) + 488 (@__swiftmacro_6Equals4Page5ModelfMm_.swift:2)
6 Equals 0x1023a6c8c Page.__allocating_init(id:created_at:title:pinned:) + 92
7 ContentView.1.preview-thunk.dylib 0x10d21181c ContentView.__preview__addSampleLine() + 256 (ContentView.swift:350)
8 ContentView.1.preview-thunk.dylib 0x10d214b6c ContentView.__preview__addNewLine() + 96 (ContentView.swift:246)
9 ContentView.1.preview-thunk.dylib 0x10d21a5b8 closure #3 in closure #1 in closure #1 in ContentView.__preview__body.getter + 36 (ContentView.swift:111)
Can anyone give me a hnt of what I am doing wrong???
