2014/10/15 下午 10:12:32

iphone Programming Glossary: performfetch

Querying Core Data with Predicates - iPhone

http://stackoverflow.com/questions/1019070/querying-core-data-with-predicates-iphone

@ All fetchedResultsController.fetchRequest setPredicate predicate NSError error nil if self fetchedResultsController performFetch error Handle error NSLog @ Unresolved error @ @ error error userInfo abort Fail self.tableView reloadData searchBar resignFirstResponder..

Passing a ManagedObjectContext to a second view

http://stackoverflow.com/questions/1074539/passing-a-managedobjectcontext-to-a-second-view

that crashes void viewDidLoad super viewDidLoad self.title tName NSError error if self fetchedResultsController performFetch error crashes here Handle the error... NSFetchedResultsController fetchedResultsController if fetchedResultsController nil..

core data: [NSFetchedResultsController -fetchedObjects], will this method reflect object change?

http://stackoverflow.com/questions/13391934/core-data-nsfetchedresultscontroller-fetchedobjects-will-this-method-reflec

of the fetch. @property nonatomic readonly NSArray fetchedObjects Discussion The value of the property is nil if performFetch hasn 脌 been called. The results array only includes instances of the entity specified by the fetch request fetchRequest..

Core-Data iPhone: could not locate an NSManagedObjectModel

http://stackoverflow.com/questions/1632497/core-data-iphone-could-not-locate-an-nsmanagedobjectmodel

release NSLog @ 3 viewDidLoad RootViewController NSError error HERE IS THE CRASH SITE if self fetchedResultsController performFetch error NSLog @ Does not reach this point in viewDidLoad RootViewController Update to handle the error appropriately. NSLog..

Core Data cannot resolve faults when object has “description” attribute?

http://stackoverflow.com/questions/2169252/core-data-cannot-resolve-faults-when-object-has-description-attribute

moc sectionNameKeyPath @ recency cacheName @ frc fetchRequest release frc.delegate self NSError error BOOL success frc performFetch error if success NSLog @ error @ error for A a in frc fetchedObjects someMutableArray addObject a.b someMutableArray addObject..

NSManagedObjects that I own being released by main.m?

http://stackoverflow.com/questions/2375551/nsmanagedobjects-that-i-own-being-released-by-main-m

browseButton browseButton release NSError error nil if self fetchedResultsController performFetch error self.categories fetchedResultsController fetchedObjects NSMutableDictionary tipsMutableDictionary NSMutableDictionary..

iPhone SDK Core Data: Fetch all entities with a nil relationship?

http://stackoverflow.com/questions/2745994/iphone-sdk-core-data-fetch-all-entities-with-a-nil-relationship

managedObjectContext sectionNameKeyPath sectionKey cacheName nil BOOL success aFetchedResultsController performFetch nil NSMutableArray orphans nil this is always 0 NSLog @ Orphans found i aFetchedResultsController.fetchedObjects.count if..

NSFetchedResultsController refresh refetch?

http://stackoverflow.com/questions/3399012/nsfetchedresultscontroller-refresh-refetch

NSLog @ refreshFetchedResultsController NSError error nil if self fetchedResultsController performFetch error UIAlertView alert UIAlertView alloc initWithTitle NSLocalizedString @ Error loading data @ Error loading data..

Core Data Navigation with Relationship

http://stackoverflow.com/questions/3430141/core-data-navigation-with-relationship

controller release return fetchedResultsController Then just implement NSFetchedResultsController delegates send performFetch message and voila UPD Assuming your game object is generally NSManagedObject declared in the second controller NSManagedObject..

Custom sorting with NSFetchedResultController (subclassing NSSortDescriptor)

http://stackoverflow.com/questions/4106184/custom-sorting-with-nsfetchedresultcontroller-subclassing-nssortdescriptor

One solution is to use a binary store instead of a sqlite store but I don't want to do that. Another solution is call performFetch to sort data via SQL compareObject not called make a modification to the data and reverse it. call performFetch again compareObject.. call performFetch to sort data via SQL compareObject not called make a modification to the data and reverse it. call performFetch again compareObject is called It does work in my case but it's a hack and I am not sure it will always work especially with.. @ Book inManagedObjectContext self fetchedResultsController .managedObjectContext self fetchedResultsController performFetch nil self fetchedResultsController .managedObjectContext deleteObject book self.tableView reloadData In RootViewController.m..

How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar

http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll

nil aFetchedResultsController.delegate self fetchRequest release NSError error nil if aFetchedResultsController performFetch error Replace this implementation with code to handle the error appropriately. abort causes the application to generate..

NSFetchedResultsController custom sort not getting called

http://stackoverflow.com/questions/4789782/nsfetchedresultscontroller-custom-sort-not-getting-called

release fetchRequest release sortDescriptor release sortDescriptors release if fetchedResultsController performFetch error NSLog @ Unresolved error @ @ error error userInfo abort return fetchedResultsController When I enter this tab I have..

How to list only online users on facebook with xmpp framework

http://stackoverflow.com/questions/5300912/how-to-list-only-online-users-on-facebook-with-xmpp-framework

setDelegate self sd1 release sd2 release fetchRequest release NSError error nil if fetchedResultsController performFetch error NSLog @ Error performing fetch @ error return fetchedResultsController void controllerDidChangeContent NSFetchedResultsController..

Getting an NSInvalidArguementException error

http://stackoverflow.com/questions/5815549/getting-an-nsinvalidarguementexception-error

self self.fetchedResultsController aFetchedResultsController NSError error nil if self.fetchedResultsController performFetch error Replace this implementation with code to handle the error appropriately. abort causes the application to generate.. self self.fetchedResultsController aFetchedResultsController NSError error nil if self.fetchedResultsController performFetch error Replace this implementation with code to handle the error appropriately. abort causes the application to generate..

CoreData error driving me crazy… CoreData: Serious application error. An exception caught from delegate of NSFetchedResultsController

http://stackoverflow.com/questions/7844326/coredata-error-driving-me-crazy-coredata-serious-application-error-an-excep

this should do it void viewWillAppear BOOL animated super viewWillAppear animated NSError error nil resultsController performFetch error Refetch data if error nil handle error self.tableView reloadData This will make sure that whenever you switch to tab..

Distinct Count via Core Data, NSExpression Into NSFetchedResultsController

http://stackoverflow.com/questions/9157436/distinct-count-via-core-data-nsexpression-into-nsfetchedresultscontroller

self managedObjectContext sectionNameKeyPath nil cacheName nil ... NSError error nil if self.fetchedResultsController performFetch error NSLog @ Unresolved error @ @ error error userInfo abort iphone objective c core data count distinct share improve..