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2014/10/15 ¤U¤È 10:10:23
iphone Programming Glossary: initwithentityCore Data could not fullfil fault for object after obtainPermanantIDs http://stackoverflow.com/questions/11321717/core-data-could-not-fullfil-fault-for-object-after-obtainpermanantids want. Provide a category on NSManagedObject similar to this... @implementation NSManagedObject initWithPermanentID id initWithEntity NSEntityDescription entity insertWithPermanentIDIntoManagedObjectContext NSManagedObjectContext context if self self initWithEntity.. NSEntityDescription entity insertWithPermanentIDIntoManagedObjectContext NSManagedObjectContext context if self self initWithEntity entity insertIntoManagedObjectContext context NSError error nil if context obtainPermanentIDsForObjects @ self error error.. NSMutableArray array NSMutableArray arrayWithCapacity count for NSUInteger i 0 i count i array addObject self alloc initWithEntity entity insertIntoManagedObjectContext context NSError error nil if context obtainPermanentIDsForObjects array error error..
Cocoa-Touch, NSManagedObject: Exception when setting a property http://stackoverflow.com/questions/1556304/cocoa-touch-nsmanagedobject-exception-when-setting-a-property either explicitly or via an other convenience initializer. In the case of NSManagedObject this is NSManagedObject initWithEntity insertIntoManagedObjectContext . Failure to cause the designated initializer leads to undefined and likely incorrect behavior..
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 overriding description ”if this method fires a fault during a debugging operation the results may be unpredictable ”and initWithEntity insertIntoManagedObjectContext . You should typically not override the key value coding methods such as valueForKey and..
How to Deal with Temporary NSManagedObject instances? http://stackoverflow.com/questions/3256195/how-to-deal-with-temporary-nsmanagedobject-instances entityForName @ MyEntity inManagedObjectContext myMOC NSManagedObject unassociatedObject NSManagedObject alloc initWithEntity entity insertIntoManagedObjectContext nil Then when you want to save it myMOC insertObject unassociatedObject NSError error..
Create a Core Date Entity Instance But not want it to be stored(non-persistent) http://stackoverflow.com/questions/3751340/create-a-core-date-entity-instance-but-not-want-it-to-be-storednon-persistent
http://stackoverflow.com/questions/9204025/how-do-i-create-a-global-uimanageddocument-instance-per-document-on-disk-shared
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