0
Lorsque j'essaie de migrer mon ancienne base de données vers une nouvelle base de données, tout se passe correctement. Mais quand j'essaie d'accéder à la base de données, elle dit qu'elle est corrompue ou mal formée. Cela n'arrive que dans iOS11.La migration personnalisée corrompt db
Je reçois cette erreur -
error: exception handling request: <NSSQLRelationshipFaultRequestContext: 0x1c4cbc9e0> , Fatal error. The database at /var/mobile/Containers/Data/Application/743F0953-2F57-4B9F-931A-0E0AEF9E8D0A/Documents/Main.db is corrupted. SQLite error code:11, 'database disk image is malformed' with userInfo of {
NSFilePath = "/var/mobile/Containers/Data/Application/743F0953-2F57-4B9F-931A-0E0AEF9E8D0A/Documents/Main.db";
NSSQLiteErrorDomain = 11;
}
Quand j'essayez d'accéder à db, je reçois -
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Object's persistent store is not reachable from this NSManagedObjectContext's coordinator'
Ceci est mon code de migration -
NSError *error = nil;
NSMappingModel *mapping = [NSMappingModel inferredMappingModelForSourceModel: oldModel destinationModel: self error: &error];
if (error) {
LOG(@"Error while inferring mapping model: %@", error);
return NO;
}
NSString *newContextPath = [contextPath stringByAppendingPathExtension: @"tmp"];
NSValue *classValue = [[NSPersistentStoreCoordinator registeredStoreTypes] objectForKey: NSSQLiteStoreType];
Class sqliteStoreClass = (Class)[classValue pointerValue];
Class sqliteStoreMigrationManagerClass = [sqliteStoreClass migrationManagerClass];
NSURL *srcURL = [NSURL fileURLWithPath: contextPath], *dstURL = [NSURL fileURLWithPath: newContextPath];
NSMigrationManager *manager = [[sqliteStoreMigrationManagerClass alloc] initWithSourceModel: oldModel destinationModel: self];
@try {
if (![manager migrateStoreFromURL: srcURL type:NSSQLiteStoreType options:nil withMappingModel:mapping toDestinationURL: dstURL destinationType:NSSQLiteStoreType destinationOptions:nil error:&error]) {
LOG(@"Migration failed %@", error);
return NO;
}
} @catch (NSException *exception) {
LOG(@"Exception: %@", exception);
return NO;
}
if (![[NSFileManager defaultManager] removeItemAtPath: contextPath error: &error]) {
LOG(@"Error removing old database: %@", error);
return NO;
}
if (![[NSFileManager defaultManager] moveItemAtPath: newContextPath toPath: contextPath error: &error]) {
LOG(@"Error renaming/moving new database: %@", error);
return NO;
}
LOG(@"- Context Migration: Complete");