nsfetchedresultscontroller

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Objective C: Filtering Core Data Information based on Set of Annotations visible in current MapRect

I have around 1000+ core data objects for my application. The application consist of a mapView and a tableView.[详细]

2023-03-04 08:49 分类：问答
Core Data Sort Descriptors with relationships between Entities

I have two entities, Job and Client. The relationship from job to client is called clientOfJob which is a many-to-one relationship:[详细]

2023-03-04 06:35 分类：问答
App crashing on deleting a row

My table is used to list the rows from the core data. Everything works fine, I have used two types of data to load on the same table view. The data types change on account of the scope button change.[详细]

2023-03-04 05:55 分类：问答
Problem with NSManagedObjectContextObjectsDidChangeNotification in two different views

Good evening everyone, before explaining my problem, I should give you some explanation on my project first :[详细]

2023-03-04 02:34 分类：问答
Checking if NSFetchedResultsController returns no objects

I want to check if a NSFetchedResultsController isn\'t returning any objects.The point of this is that I want to conditionally display some开发者_如何转开发 information on the page to inform the user[详细]

2023-03-04 00:30 分类：问答
Attempting to create USE_BLOCK_IN_FRAME ... EXC_BAD_ACCESS with NSFetchedResultsController

This is an update to my problem. I am receiving this warning now when the program aborts. warning: Attempting to create USE_BLOCK_IN_FRAME variable with block that isn\'t in the frame.[详细]

2023-03-03 09:46 分类：问答
Returning two property values concatenated as one item

I\'m not sure if this can be done. I\'m just learning how NSFetchedResultsController and Predicates work.[详细]

2023-03-02 20:58 分类：问答
Enhance my Core Data design. Experts only!

In AcaniUsers, I\'m downloading the closest 20 users to me and displaying their profile pictures as thumbnails in a table view. User & Photo are both Resources because they each have an id (Mong[详细]

2023-03-01 16:28 分类：问答
When and how often to call processPendingChanges to ensure graph integrity

I have 开发者_开发技巧entities that are managed by Core Data and have several cases where, within a single method, I set some attribute values that will result graph changes that Core Data will enforc[详细]

2023-02-27 01:36 分类：问答
Should I Use a FetchedResultsController for Objects in a Constantly Updating Relationship?

I have a simple Coredata model with one entity called \"conversation\" and the other one \"messages\". Basically, I need to kind of reproduce the iPhone sms application.[详细]

2023-02-26 06:08 分类：问答