// Returns the persistent store coordinator for the application.// If the coordinator doesn't already exist, it is created and the application's store added to it.
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator{if (_persistentStoreCoordinator != nil){ return _persistentStoreCoordinator;}NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@"yourSqlite.sqlite"];NSString *sourcePath = [[NSBundle mainBundle] pathForResource:@"yourSqlite.sqlite" ofType:nil];NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];NSError *error = nil;if (![[NSFileManager defaultManager] fileExistsAtPath:[documentsDirectory stringByAppendingPathComponent:@"yourSqlite.sqlite"] ]) { if([[NSFileManager defaultManager] copyItemAtPath:sourcePath toPath:[documentsDirectory stringByAppendingPathComponent:@"yourSqlite.sqlite"] error:&error]){ NSLog(@"Default file successfully copied over."); } else { NSLog(@"Error description-%@ \n", [error localizedDescription]); NSLog(@"Error reason-%@", [error localizedFailureReason]); }}_persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];if (![_persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeURL options:nil error:&error]){ NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort();}return _persistentStoreCoordinator;}