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2014/10/15 ¤U¤È 10:08:57
iphone Programming Glossary: fetchedresultscontrollerHow to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll number of sections or rows in sections. Here is what I did I have two FRCs available as properties fetchedResultsController and searchFetchedResultsController. The searchFetchedResultsController should not be used unless there.. other class ivars required ivars for this example NSFetchedResultsController fetchedResultsController_ NSFetchedResultsController searchFetchedResultsController_ NSManagedObjectContext managedObjectContext_.. managedObjectContext @property nonatomic retain readonly NSFetchedResultsController fetchedResultsController @property nonatomic copy NSString savedSearchTerm @property nonatomic NSInteger savedScopeButtonIndex..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll your FRC and you will see exceptions thrown about incorrect number of sections or rows in sections. Here is what I did I have two FRCs available as properties fetchedResultsController and searchFetchedResultsController. The searchFetchedResultsController should not be used unless there is a search when the search is canceled you can see below.. UISearchBarDelegate NSFetchedResultsControllerDelegate UISearchDisplayDelegate other class ivars required ivars for this example NSFetchedResultsController fetchedResultsController_ NSFetchedResultsController searchFetchedResultsController_ NSManagedObjectContext managedObjectContext_ The saved state of the search UI if a memory warning removed.. BOOL searchWasActive_ @property nonatomic retain NSManagedObjectContext managedObjectContext @property nonatomic retain readonly NSFetchedResultsController fetchedResultsController @property nonatomic copy NSString savedSearchTerm @property nonatomic NSInteger savedScopeButtonIndex @property nonatomic BOOL searchWasActive relevent bits of..
I keep on getting “save operation failure” after any change on my XCode Data Model http://stackoverflow.com/questions/1091228/i-keep-on-getting-save-operation-failure-after-any-change-on-my-xcode-data-mod Create a new instance of the entity managed by the fetched results controller. NSManagedObjectContext context fetchedResultsController managedObjectContext NSEntityDescription entity fetchedResultsController fetchRequest entity NSManagedObject newManagedObject.. controller. NSManagedObjectContext context fetchedResultsController managedObjectContext NSEntityDescription entity fetchedResultsController fetchRequest entity NSManagedObject newManagedObject NSEntityDescription insertNewObjectForEntityForName entity name inManagedObjectContext.. Create a new instance of the entity managed by the fetched results controller. NSManagedObjectContext context fetchedResultsController managedObjectContext NSEntityDescription entity fetchedResultsController fetchRequest entity Evaluation evaluation Evaluation..
NSFetchedResultsController with sections created by first letter of a string http://stackoverflow.com/questions/1112521/nsfetchedresultscontroller-with-sections-created-by-first-letter-of-a-string Here's what I'm starting with ... the trick seems to be fooling the sectionNameKeyPath NSFetchedResultsController fetchedResultsController .........SOME STUFF DELETED Edit the sort key as appropriate. NSSortDescriptor orderDescriptor NSSortDescriptor alloc initWithKey.. committeeName substringToIndex 1 self didAccessValueForKey @ committeeNameInitial return initial THIS GOES IN YOUR fetchedResultsController METHOD Edit the sort key as appropriate. NSSortDescriptor nameInitialSortOrder NSSortDescriptor alloc initWithKey @ committeeName..
Core-Data iPhone: could not locate an NSManagedObjectModel http://stackoverflow.com/questions/1632497/core-data-iphone-could-not-locate-an-nsmanagedobjectmodel addButton addButton 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...
How to use the first character as a section name http://stackoverflow.com/questions/1741093/how-to-use-the-first-character-as-a-section-name implementations using NSFetchedResultsController NSInteger numberOfSectionsInTableView UITableView tableView return fetchedResultsController sections count NSArray sectionIndexTitlesForTableView UITableView tableView return fetchedResultsController sectionIndexTitles.. return fetchedResultsController sections count NSArray sectionIndexTitlesForTableView UITableView tableView return fetchedResultsController sectionIndexTitles NSInteger tableView UITableView tableView sectionForSectionIndexTitle NSString title atIndex NSInteger.. NSInteger tableView UITableView tableView sectionForSectionIndexTitle NSString title atIndex NSInteger index return fetchedResultsController sectionForSectionIndexTitle title atIndex index NSInteger tableView UITableView tableView numberOfRowsInSection NSInteger..
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar http://stackoverflow.com/questions/4471289/how-to-filter-nsfetchedresultscontroller-coredata-with-uisearchdisplaycontroll about incorrect number of sections or rows in sections. Here is what I did I have two FRCs available as properties fetchedResultsController and searchFetchedResultsController. The searchFetchedResultsController should not be used unless there is a search when.. UISearchDisplayDelegate other class ivars required ivars for this example NSFetchedResultsController fetchedResultsController_ NSFetchedResultsController searchFetchedResultsController_ NSManagedObjectContext managedObjectContext_ The saved state.. retain NSManagedObjectContext managedObjectContext @property nonatomic retain readonly NSFetchedResultsController fetchedResultsController @property nonatomic copy NSString savedSearchTerm @property nonatomic NSInteger savedScopeButtonIndex @property nonatomic..
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