2014/10/15 下午 10:12:33

iphone Programming Glossary: persistentstore

http://stackoverflow.com/questions/2138252/core-data-multi-thread-application

then i use an XMLParser to parse the new data and create new NSManagedObjects in a separate context with its own persistentStore and using a separate thread. The problem is that creating new objects in the same context of the old one while showing it..

How do I delete all objects from my persistent store in Core Data?

http://stackoverflow.com/questions/2375888/how-do-i-delete-all-objects-from-my-persistent-store-in-core-data

for this Thanks I found this solution managedObjectContext lock managedObjectContext reset to drop pending changes if persistentStoreCoordinator removePersistentStore persistentStore error error NSURL storeURL NSURL fileURLWithPath self pathForPersistentStore.. lock managedObjectContext reset to drop pending changes if persistentStoreCoordinator removePersistentStore persistentStore error error NSURL storeURL NSURL fileURLWithPath self pathForPersistentStore NSFileManager defaultManager removeFileAtPath.. here you can simply copy past it will work. NSError error retrieve the store URL NSURL storeURL managedObjectContext persistentStoreCoordinator URLForPersistentStore managedObjectContext persistentStoreCoordinator persistentStores lastObject lock the current..

Pre-load core data database in iOS 5 with UIManagedDocument

http://stackoverflow.com/questions/8683892/pre-load-core-data-database-in-ios-5-with-uimanageddocument

UIDocumentSaveForCreating completionHandler ^ BOOL success if success self loadDataIntoDocument and then copy the persistentStore file from the 'documents' directory that is created in the simulator's directory to the resources section in Xcode for the.. can only access a package of files. I've tried creating another fresh document in the main app and copying the persistentStore from the bundle over the one that is created in the document with the same error. And I've tried using UIManagedDocument.. created in your Loader app into your final bundle. The structure should be rather simple just two directories with the persistentStore file inside. Afterwards when you want to open your document you need to take care of two things you need to use the bundle..

UIManagedDocument example / tutorial

http://stackoverflow.com/questions/8705964/uimanageddocument-example-tutorial

separate documents saved to iCloud . I am confused with the following Do I subclass UIManagedDocument and set up the persistentStoreCoordinator ManagedObjectModel ManagedObjectContext within this subclass or are these supposed to be configured within the.. this subclass or are these supposed to be configured within the AppDelegate and if so how do I go about refreshing the persistentStoreCoordinator to look at the new file it seems that once that has read a persistentStore that I can't get it to read a new.. how do I go about refreshing the persistentStoreCoordinator to look at the new file it seems that once that has read a persistentStore that I can't get it to read a new persistent store iphone objective c core data icloud uimanageddocument share improve..