47 lines
1.9 KiB
Swift
47 lines
1.9 KiB
Swift
//
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// Persistence.swift
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// MonsterCards
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//
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// Created by Tom Hicks on 1/15/21.
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//
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import CoreData
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struct PersistenceController {
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static let shared = PersistenceController()
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static var preview: PersistenceController = {
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let result = PersistenceController(inMemory: true)
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let viewContext = result.container.viewContext
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let monsters: [Monster] = [
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Monster(context:viewContext, name: "Ted", size: "Huge", type: "humanoid", subtype: "any race", alignment: "any alignment"),
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Monster(context:viewContext, name: "Steve", size: "Huge", type: "humanoid", subtype: "any race", alignment: "any alignment"),
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Monster(context:viewContext, name: "Dave", size: "Huge", type: "humanoid", subtype: "any race", alignment: "any alignment")
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]
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do {
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try viewContext.save()
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} catch {
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// Replace this implementation with code to handle the error appropriately.
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// 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.
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let nsError = error as NSError
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// fatalError("TOMHICKS_Unresolved error \(nsError), \(nsError.userInfo)")
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}
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return result
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}()
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let container: NSPersistentCloudKitContainer
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init(inMemory: Bool = false) {
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container = NSPersistentCloudKitContainer(name: "MonsterCards")
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if inMemory {
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container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null")
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}
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container.viewContext.automaticallyMergesChangesFromParent = true
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container.loadPersistentStores(completionHandler: { (storeDescription, error) in
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if let error = error as NSError? {
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fatalError("Unresolved error \(error), \(error.userInfo)")
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}
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})
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}
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}
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