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clearDatabase on error

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This commit is contained in:
Garth Vander Houwen 2021-12-29 16:13:17 -08:00
parent c576977244
commit 677963be59
1 changed files with 17 additions and 15 deletions
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32
MeshtasticClient/Persistence/Persistence.swift
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@ -32,6 +32,7 @@ class PersistenceController {
let container: NSPersistentContainer
init(inMemory: Bool = false) {
container = NSPersistentContainer(name: "Meshtastic")
if inMemory {
container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null")
@ -39,7 +40,7 @@ class PersistenceController {
container.loadPersistentStores(completionHandler: { (_, error) in
// Merge policy that favors in memory data over data in the db
self.container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy
self.container.viewContext.automaticallyMergesChangesFromParent = true
if let error = error as NSError? {
// Replace this implementation with code to handle the error appropriately.
@ -53,21 +54,22 @@ class PersistenceController {
* The store could not be migrated to the current model version.
Check the error message to determine what the actual problem was.
*/
let firstStoreURL = self.container.persistentStoreCoordinator.persistentStores.first?.url
do {
try self.container.persistentStoreCoordinator.destroyPersistentStore(at: firstStoreURL!, type: .sqlite, options: nil)
print("💥 Something went terribly wrong, CoreData database truncated. All app data is lost.")
} catch {
print("💣 Failed to destroy broken CoreData database, delete the app.")
}
print("💣💥 Unresolved error \(error), \(error.userInfo)")
self.clearDatabase()
}
})
}
public func clearDatabase() {
guard let url = self.container.persistentStoreDescriptions.first?.url else { return }
let persistentStoreCoordinator = self.container.persistentStoreCoordinator
do {
try persistentStoreCoordinator.destroyPersistentStore(at:url, ofType: NSSQLiteStoreType, options: nil)
print("💥 Something went terribly wrong, CoreData database truncated. All app data is lost.")
try persistentStoreCoordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: url, options: nil)
} catch let error {
print("💣 Failed to destroy broken CoreData database, delete the app. Attempted to clear persistent store: " + error.localizedDescription)
}
}
}