2014/10/15 下午 10:08:54
iphone Programming Glossary: faultsFetched Properties v Relationships (Core Data - iPhone) http://stackoverflow.com/questions/1737415/fetched-properties-v-relationships-core-data-iphone iphone objective c core data lazy loading share improve this question Check out faulting in Core Data Using faults if you retrieve a single Employee object from a persistent store its manager department and reports relationships are initially.. Employee object from a persistent store its manager department and reports relationships are initially represented by faults. Although the fault is an instance of the Department class it has not yet been realized 䒟one of its persistent instance..
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 Data cannot resolve faults when object has &ldquo description&rdquo attribute Code NSFetchRequest fetchRequest NSFetchRequest alloc init NSEntityDescription..
iPhone CoreLocation: How to get the most accurate speed http://stackoverflow.com/questions/582511/iphone-corelocation-how-to-get-the-most-accurate-speed best results you should use kCLLocationAccuracyBest. What you put into your distance filter depends on up with which faults you're willing to put. Basically you're going to have to make decisions based on accuracy vs availability. That is during..
Need some help understanding transient properties in Core Data http://stackoverflow.com/questions/7504391/need-some-help-understanding-transient-properties-in-core-data objects are initialized from the data model so that all the keys they respond to must be in the data model. This means faults will not reliably respond to request for unmodeled properties. Wait what I'm starting to realize my objects can be faults.. will not reliably respond to request for unmodeled properties. Wait what I'm starting to realize my objects can be faults at any time but are you telling me they might not even be instances of my class Or if you use a custom subclass are they.. me they might not even be instances of my class Or if you use a custom subclass are they guaranteed to be the sort of faults that are instances of NSManagedObject specifically my subclass If they aren't instances of the custom class then what happens..
Crash when adding persistent store (iCloud enabled) in app delegate http://stackoverflow.com/questions/8021753/crash-when-adding-persistent-store-icloud-enabled-in-app-delegate merging data until the app has set up its persistent store. Otherwise you will see the app crash due to unreadable faults. Here is how I am setting up my persistentStoreCoordinator NSPersistentStoreCoordinator persistentStoreCoordinator if __persistentStoreCoordinator..
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