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2014/10/15 ¤U¤È 10:08:57
iphone Programming Glossary: fetcherrorCore Data “Upsert” from SQLite Database http://stackoverflow.com/questions/1997212/core-data-upsert-from-sqlite-database NSDictionary dictionaryWithObject someName forKey @ SOME_NAME fetchRequest setPredicate localPredicate NSError fetchError NSArray array managedObjectContext executeFetchRequest fetchRequest error fetchError if array nil handle error .. localPredicate NSError fetchError NSArray array managedObjectContext executeFetchRequest fetchRequest error fetchError if array nil handle error else if array count 0 SomeEntity entity NSEntityDescription insertNewObjectForEntityForName.. dictionaryWithObject relationshipName forKey @ RELATIONSHIP_NAME fetchRequest setPredicate localPredicate NSError fetchError NSArray array managedObjectContext executeFetchRequest fetchRequest error fetchError if array nil handle error else..
Core data, how to get NSManagedObject's ObjectId when NSFetchRequest returns NSDictionaryResultType? http://stackoverflow.com/questions/3956406/core-data-how-to-get-nsmanagedobjects-objectid-when-nsfetchrequest-returns-nsd anotherPropertyDesc yetAnotherPropertyDesc nil NSArray fetchResults myContext executeFetchRequest myFetchRequest error fetchError You should then have a @ objectID key in the the dictionaries you get back from your fetch request. share improve this..
http://stackoverflow.com/questions/4177398/save-and-load-data-coredata 'moc' in something thats not a structure or a union NSArray fetchedObjs self.moc executeFetchRequest theFetch error fetchError iphone ipad core data save uidatepicker share improve this question To start you need a data model to reflect what.. pred NSPredicate predicateWithFormat @ dateSaved @ targetDate fetch setPredicate NSArray arrayWithObject pred NSError fetchError nil NSArray fetchedObjs theManagedObjectContext executeFetchRequest theFetch error fetchError if fetchError nil NSLog @.. pred NSError fetchError nil NSArray fetchedObjs theManagedObjectContext executeFetchRequest theFetch error fetchError if fetchError nil NSLog @ fetchError @ details @ fetchError fetchError.userInfo return nil fetchedObjs will now contain..
DatePicker Stopping CoreData Work http://stackoverflow.com/questions/4326303/datepicker-stopping-coredata-work NSPredicate pred NSPredicate predicateWithFormat @ dateSaved @ datePicker.date fetch setPredicate pred NSError fetchError nil NSArray fetchedObjs self.managedObjectContext executeFetchRequest fetch error fetchError if fetchError nil NSLog @.. setPredicate pred NSError fetchError nil NSArray fetchedObjs self.managedObjectContext executeFetchRequest fetch error fetchError if fetchError nil NSLog @ fetchError @ details @ fetchError fetchError.userInfo noteTextView.text fetchedObjs objectAtIndex.. NSError fetchError nil NSArray fetchedObjs self.managedObjectContext executeFetchRequest fetch error fetchError if fetchError nil NSLog @ fetchError @ details @ fetchError fetchError.userInfo noteTextView.text fetchedObjs objectAtIndex 0 valueForKey..
Removing a specific entry/row from Core-Data http://stackoverflow.com/questions/6524876/removing-a-specific-entry-row-from-core-data p NSPredicate predicateWithFormat @ pid @ soughtPid fetch setPredicate p ... add sorts if you want them NSError fetchError NSArray fetchedProducts self.moc executeFetchRequest fetch error fetchError handle error The fetchedProducts array will.. p ... add sorts if you want them NSError fetchError NSArray fetchedProducts self.moc executeFetchRequest fetch error fetchError handle error The fetchedProducts array will contain all the objects of the entity Product whose pid attribute equals soughtPid..
http://stackoverflow.com/questions/7807977/ios-5-core-data-freeze Data freeze I try to do the following simple thing NSArray entities context executeFetchRequest inFetchRequest error fetchError Nothing fancy. But this freezes in iOS 5 it works fine in iOS 4. I don't get exceptions warnings or errors my app just simply..
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