nsfetchedresultscontroller

My application has two tab bars... Each takes the user to a tableviewcontroller that presents him with a list of items. The first view lets the user record entries in the database. The other tab/view reads from the database and presents those items to the user as well, however, no updates are made to the coreData/persistant store from this second view. When I add a new item via the first viewcontroller, it shows up perfectly in the view. However, as soon as I tap on the other tab bar to see the new item appear in that viewcontroller, I get the error listed below, and the newly added item does

I make use of NSFetchedResultsController to display a bunch of objects, which are sectioned using dates. On a fresh install, it all works perfectly and the objects are displayed in the table view. However, it seems that when the app is relaunched I get a crash. I specify a cache when initialising the NSFetchedResultsController, and when I don't it works perfectly. Here is how I create my NSFetchedResultsController: - (NSFetchedResultsController *)results { // If we are not nil, stop here if (results != nil) return results; // Create the fetch request, entity and sort descriptors NSFetchRequest

I have a UITableView populated with a standard NSFetchedResultsController. However I'd like to prepend a row or a section (row preferably but either would works fine really.) The only way I can possibly see doing this right now is to rewrite all the NSIndexPath's manually when dealing with the section/rows dealing with the data from NSFetchedResultsController to trick it into seeing section at index 0 and starting with row at index 0. This however seems like a really bad idea that would quickly get confusing so I'd like to preferable avoid that. A good example of this would be in the official

This question already has an answer here: Reset a CoreData persistent store 7 answers I am working with resetting my data in coreData, below is my code to reset my data in CoreData - (void) resetApplicationModel { __managedObjectContext = nil; __managedObjectModel = nil; __persistentStoreCoordinator = nil; _allPageViewController.controller = nil; NSError *error; NSURL *storeURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@"abc.sqlite"]; if ([[self.managedObjectContext persistentStoreCoordinator] removePersistentStore:[[[self.managedObjectContext

I've been reading all the documentation about UISearchDisplayController and its delegate but I can't find any way to animate the table view when the search criteria change. I'm using these two methods : They both return YES but still can't find any way to do something similar to : I don't know if it's important but I'm using an NSfetchedResultsController to populate the UITableView in the UISearchDisplayController That's it thanks ! When the search string or scope has changed, you assign a new fetch request for the fetched results controller and therefore have to call performFetch to get a new

I'm using a UITableViewController for a table in my app, and I've added an NSFetchedResultsController to provide the data to show in the table (setting self as it's delegate). However I would like to add a unique cell as the last cell of the table, unrelated to the items produced by the NSFetchedResultsController 's predicate, I want this cell to always be at the bottom of the table. I've tried simply added 1 to these methods in the table view data source: - (NSUInteger)numberOfSectionsInTableView:(UITableView *)sender { return [[self.fetchedResultsController sections] count] + 1; } -