nsmanagedobject

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Problems With Core Data App-

When I try to build my Core Data App, which most code is coming from CoreDataBooks example, I get the error[详细]

2023-04-12 00:00 分类：问答
iphone: Core Data: NSManagedObjects and UITableView crash

This fetch method work perfectly and the NSLog prints out the contents of the database...(fetchedObjects in an NSArray):[详细]

2023-04-11 14:01 分类：问答
CORE DATA Many to Many relationship. How to update or set relationship?

I have 2 entities Locations and Items. Many to many relationship. So each item can have multiple locations and any location can have multiple items.[详细]

2023-04-11 05:50 分类：问答
How to do perfect KVO for NSManagedObject?

Pe开发者_如何学JAVArfect KVO here includes two parts: add observer correctly and remove observer correctly.[详细]

2023-04-09 05:07 分类：问答
Looking for code sample for a Grouped UITableView that is populated from an an NSMutableArray of objects (NOT FROM CORE DATA and NSFetchedResults) [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari[详细]

2023-04-08 15:50 分类：问答
Establish relationship between managed objects in two different contexts

I am parsing JSON string to create new managed objects in a separate thread and in a separate managed object context. Later I want to merge the changes in the main thread by listening to NSManagedObje[详细]

2023-04-08 02:41 分类：问答
CoreData inverse question

My understanding of an inverse relationship in CoreData is that these two statements should be equivalent:[详细]

2023-04-07 19:31 分类：问答
NSManagedObject Faulted

I have an NSManagedObject that has some of its properties initialized at the start of the program. When I refer to this object later, it appears to be faulted, and the properties are not accessible. I[详细]

2023-04-07 04:25 分类：问答
Core Data: Save unique object ID

I see that there is a method of getting the unique id of a managed object: NSManagedObjectID *moID = [managedObject objectID];[详细]

2023-04-05 23:05 分类：问答
How to delete an unsaved managed object safely?

My app offers some sort of editor functionality for \"text articles\". My editor has two modes. When the editor loads, I create a managed object if it hasn\'t been passed in through the initializer. W[详细]

2023-04-04 22:11 分类：问答