git.r.bdr.sh - rbdr/captura/blob - Captura/Data/Persistence.swift

   1 /*
   2  Copyright (C) 2024 Rubén Beltrán del Río
   3
   4  This program is free software: you can redistribute it and/or modify
   5  it under the terms of the GNU General Public License as published by
   6  the Free Software Foundation, either version 3 of the License, or
   7  (at your option) any later version.
   8
   9  This program is distributed in the hope that it will be useful,
  10  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  GNU General Public License for more details.
  13
  14  You should have received a copy of the GNU General Public License
  15  along with this program. If not, see https://captura.tranquil.systems.
  16  */
  17 import CoreData
  18
  19 struct PersistenceController {
  20     static let shared = PersistenceController()
  21
  22     static var preview: PersistenceController = {
  23         let result = PersistenceController(inMemory: true)
  24         return result
  25     }()
  26
  27     let container: NSPersistentCloudKitContainer
  28
  29     init(inMemory: Bool = false) {
  30       container = NSPersistentCloudKitContainer(name: "Captura")
  31
  32     #if DEBUG
  33     do {
  34         // Use the container to initialize the development schema.
  35         try container.initializeCloudKitSchema(options: [])
  36     } catch {
  37         // Handle any errors.
  38     }
  39     #endif
  40
  41         if inMemory {
  42             container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null")
  43         }
  44         container.loadPersistentStores(completionHandler: { (storeDescription, error) in
  45             if let error = error as NSError? {
  46                 // Replace this implementation with code to handle the error appropriately.
  47                 // 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.
  48
  49                 /*
  50                  Typical reasons for an error here include:
  51                  * The parent directory does not exist, cannot be created, or disallows writing.
  52                  * The persistent store is not accessible, due to permissions or data protection when the device is locked.
  53                  * The device is out of space.
  54                  * The store could not be migrated to the current model version.
  55                  Check the error message to determine what the actual problem was.
  56                  */
  57                 fatalError("Unresolved error \(error), \(error.userInfo)")
  58             }
  59         })
  60         container.viewContext.automaticallyMergesChangesFromParent = true
  61     }
  62 }