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Questions - nsmanagedobject

My core data fetch is not recognizing context

In my swift code below I am trying to fetch all of my names in core data to print. I am getting a compile error on context saying it can't be found in scope. I have attached a photo as well so you can...
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silly milly

swift

core-data

fetch

nsmanagedobject

Votes: 0

Answers: 1

Latest Answer

This isn't a Core Data problem, it's a Swift problem. All variables and properties in Swift have to be declared before you can use them. For example you can't just write i = 5 Unless somewhere you al...
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Tom Harrington

Passing ManagedObject collection from fetch result to closure up to ViewController

I want to perform a background fetch and pass the result to closure. Currently I'm using performBackgroundTask method from NSPersistentContainer which is giving a NSManagedObjectContext as a closure. ...
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burkinafaso3741

ios

swift

core-data

nsmanagedobject

nsmanagedobjectcontext

Votes: 0

Answers: 1

Latest Answer

No, it is not Do not pass NSManagedObject instances between queues. Doing so can result in corruption of the data and termination of the app. When it is necessary to hand off a managed object referen...
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Paulw11

Sample Code for MacOS Core Data with external file management with Undo/Redo

I'm trying to create an NSManagedObject subclass that manages a single file external to the Core Data database targeting back to MacOS 10.14. I don't think I can use the in built feature to store exte...
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Silver

cocoa

core-data

nsmanagedobject

file-management

Votes: 0

Answers: 1

Latest Answer

What I ended up doing: public class File: NSManagedObject { var file_directory: URL { get { return sharedDirectoryStucture.workFolder() } } @objc var ...
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Silver

Adding one read only attribute to Core Data Model in Swift. Which doesn't exist in XCDataModel

Adding attribute to entity which don't exist in XCDataModel was easily accomplised VIA @synthesize and @dynamic in objective c. Please guide how to achieve this in swift. @NSManaged public var salesPr...
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Aaban Tariq Murtaza

swift

core-data

nsmanagedobject

Votes: 0

Answers: 1

Latest Answer

To support key-value coding for a type declared in Swift, you have to mark it with the @objc keyword: @objc public var totalVal: NSNumber {
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jrturton

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