core-data Questions
2
I'm using NSPersistentCloudKitContainer to synchronise data between different devices with CloudKit. It works perfectly well with a new project, however when I'm using it with old projects the old ...
Allocution asked 3/7, 2019 at 18:10
3
Solved
I am developing a macOS and iOS app with SwiftUI. Both are using CoreData and iCloudKit to sync data between both platforms. It is indeed working very well with the same iCloud Container.
I am faci...
2
I'm building a Macos CoreData+CloudKit app.
I first create my container by doing this:
let container = NSPersistentCloudKitContainer(name: "TestApp")
let description = container.persisten...
7
Solved
I did a core-data model:
class Order: NSManagedObject {
... //code
}
but when I try to build I get an error:
'Order' is ambiguous for type lookup in this context
12
Solved
While building my project for different target I am getting this error:
Could not determine generated file paths for Core Data code
generation:
Error Domain=NSCocoaErrorDomain Code=260 "No cur...
3
Solved
There is a similar question in stack overflow already but it doesn't work for me.
There is a use case in my application where I have to observe the database changes to perform some operation. To r...
Synecious asked 1/7, 2019 at 13:22
24
Solved
I had a project that was working fine. It had "Core Data" checked, and had the data model all set up. I only started adding a couple entities and properties tonight. When I try to run my app now, i...
4
Solved
Why entity cannot have uniqueness constraints with to-one mandatory inverse relationship?
Having two entities:
Person
property: name
relationship: department (to-one, non-optional)
Departmen...
20
Solved
I've created simple entity 'CDWorkout' with one attribute 'name' inside CDModel.xcdatamodeld. Name of container in AppDelegate is also 'CDModel'. Class Codegen for 'CDWorkout' is Category/Extension...
2
Solved
When I checked Used with CloudKit, the error Folder.children must not be ordered appeared. Any idea about an ordered relationship?
Using Xcode 11 (beta 3).
Here's the Folder Entity:
Cedillo asked 10/7, 2019 at 8:57
3
Solved
I have a swift bunch of files that provides some services above CoreData. I had unit tests running fine. I decided to move all this into a Swift Package using XCode 11.
The unit tests don't run an...
Campbellbannerman asked 6/10, 2019 at 16:0
3
I have a simple NSManagedObject subclass:
@objc class MyModel: NSManagedObject {
@NSManaged var myProperty: String
}
However, the following code:
var model = NSEntityDescription.insertNewObjec...
3
In my application I am using HomeKit. You can add/remove HMHome and HMRoom object, but I would also like to add some metadata to them. For example in my application I want to be able to add an icon...
5
Solved
(first noticed on: Xcode 8.2.1, iOS 10, Swift 3)
(still present as of: Xcode 9 beta 3, iOS11, Swift 4)
We all know that the Core Data concept of optionals precedes and is not strictly tied to the ...
7
I'm trying to release an app to the app store tonight. I've been developing the Xcode 6 - Beta 2 for the past few months (Objective-C only) and didn't know you were not allowed to submit via Xcode ...
Seismism asked 31/8, 2014 at 5:11
7
Solved
I have a view showing messages in a team that are filtered using @Fetchrequest with a fixed predicate 'Developers'.
struct ChatView: View {
@FetchRequest(
sortDescriptors: [NSSortDescriptor(keyP...
Wayne asked 10/9, 2019 at 12:43
9
Solved
Let's say I have two Entity classes: SocialApp and SocialAppType
In SocialApp I have one Attribute: appURL and one Relationship: type.
In SocialAppType I have three Attributes: baseURL, name and fa...
Weslee asked 18/4, 2009 at 20:23
4
I'm using Core Data in an iOS 7+ app that does not need to save user's data, all data the app needs is requested to services and it can be recovered at any time. So, if I change my data model in a ...
Acciaccatura asked 13/3, 2015 at 7:54
0
In my recent endeavor, I aimed to introduce new Fetch Index Elements to the Core Data model of my iOS application. To achieve this, I followed a process of lightweight migration, detailed as follow...
2
I tried to migrate my CoreData-Model (with CloudKit) and it duplicated all of the objects I had stored. How can I correctly migrate when using CoreData with CloudKit?
Summary
I am using CoreData wi...
Niccolo asked 30/8, 2020 at 11:10
3
Solved
What is database seeding in the context of Core Data?
Boote asked 24/11, 2012 at 22:59
16
I'm not sure what I'm doing wrong here, but when I save the first time into coredata, it works just fine. When I try to overwrite that, it doesn't.
func testStuff() {
var token = loadLoginData()
...
2
Solved
I'm confronted with the following problem in Swift.
I wrote the following function to retrieve all persons in my model with the name "David".
private func myFetchRequest()
{
let moc = (UIApplica...
Yul asked 8/8, 2016 at 15:2
2
I'm working with Core Data. I have a field called date that could contain a date or nil.
I want to make a second field called sortDate that will use the date value from the date field if there is ...
4
Solved
I want to use new Core Data API introduced in iOS10.
@available(iOS 10.0, *)
open class func fetchRequest() -> NSFetchRequest<NSFetchRequestResult>
I created generic function to fetchi...
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