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fix(core data): remove core data from the project

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oliverhnat
2024-11-23 14:16:38 +01:00
parent 5b5d548a37
commit be56f47591
5 changed files with 11 additions and 136 deletions
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71
StepMap/ContentView.swift
View File

@@ -9,78 +9,29 @@ import SwiftUI
import CoreData
struct ContentView: View {
@Environment(\.managedObjectContext) private var viewContext
@FetchRequest(
sortDescriptors: [NSSortDescriptor(keyPath: \Item.timestamp, ascending: true)],
animation: .default)
private var items: FetchedResults<Item>
// TODO: create a map
// Add navigation to the map
// Display the calculated distance and how long will it take by walking
// Get walkingStepLength from HealthKit
// Show how many steps does the route take
// Get walkingSpeed
// show how long does the route take with said walking speed
var body: some View {
NavigationView {
List {
ForEach(items) { item in
NavigationLink {
Text("Item at \(item.timestamp!, formatter: itemFormatter)")
} label: {
Text(item.timestamp!, formatter: itemFormatter)
}
}
.onDelete(perform: deleteItems)
Text("HER")
}
.toolbar {
ToolbarItem(placement: .navigationBarTrailing) {
EditButton()
}
ToolbarItem {
Button(action: addItem) {
Label("Add Item", systemImage: "plus")
}
Text("Edit")
}
}
Text("Select an item")
}
}
private func addItem() {
withAnimation {
let newItem = Item(context: viewContext)
newItem.timestamp = Date()
do {
try viewContext.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
private func deleteItems(offsets: IndexSet) {
withAnimation {
offsets.map { items[$0] }.forEach(viewContext.delete)
do {
try viewContext.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
}
}
}
private let itemFormatter: DateFormatter = {
let formatter = DateFormatter()
formatter.dateStyle = .short
formatter.timeStyle = .medium
return formatter
}()
#Preview {
ContentView().environment(\.managedObjectContext, PersistenceController.preview.container.viewContext)
ContentView()
}

57
StepMap/Persistence.swift
View File

@@ -1,57 +0,0 @@
//
// Persistence.swift
// StepMap
//
// Created by Oliver Hnát on 23.11.2024.
//
import CoreData
struct PersistenceController {
static let shared = PersistenceController()
@MainActor
static let preview: PersistenceController = {
let result = PersistenceController(inMemory: true)
let viewContext = result.container.viewContext
for _ in 0..<10 {
let newItem = Item(context: viewContext)
newItem.timestamp = Date()
}
do {
try viewContext.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nsError = error as NSError
fatalError("Unresolved error \(nsError), \(nsError.userInfo)")
}
return result
}()
let container: NSPersistentContainer
init(inMemory: Bool = false) {
container = NSPersistentContainer(name: "StepMap")
if inMemory {
container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null")
}
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
/*
Typical reasons for an error here include:
* The parent directory does not exist, cannot be created, or disallows writing.
* The persistent store is not accessible, due to permissions or data protection when the device is locked.
* The device is out of space.
* The store could not be migrated to the current model version.
Check the error message to determine what the actual problem was.
*/
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
container.viewContext.automaticallyMergesChangesFromParent = true
}
}

8
StepMap/StepMap.xcdatamodeld/.xccurrentversion
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@@ -1,8 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>_XCCurrentVersionName</key>
<string>StepMap.xcdatamodel</string>
</dict>
</plist>

9
StepMap/StepMap.xcdatamodeld/StepMap.xcdatamodel/contents
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@@ -1,9 +0,0 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="1" systemVersion="11A491" minimumToolsVersion="Automatic" sourceLanguage="Swift" usedWithCloudKit="false" userDefinedModelVersionIdentifier="">
<entity name="Item" representedClassName="Item" syncable="YES" codeGenerationType="class">
<attribute name="timestamp" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
</entity>
<elements>
<element name="Item" positionX="-63" positionY="-18" width="128" height="44"/>
</elements>
</model>

2
StepMap/StepMapApp.swift
View File

@@ -9,12 +9,10 @@ import SwiftUI
@main
struct StepMapApp: App {
let persistenceController = PersistenceController.shared
var body: some Scene {
WindowGroup {
ContentView()
.environment(\.managedObjectContext, persistenceController.container.viewContext)
}
}
}