While learning Codex, I asked it if it could modernize my existing CloudKit library by wrapping CKSyncEngine (iOS 17+) to add .public database support.
After explaining why CKSyncEngine likely does not support .public—mainly an inability to provide at scale the same API .private/.shared affords—Codex said yes, with a few caveats.
Then I thought of something more interesting to ask, and came away impressed. #cloudkit
I’m working on a #SwiftUI “admin” utility macOS app that’s pretty information dense and probably should be very hierarchical (for editing #CloudKit entities).
Is this navigationSplitView navigation structure too wild (possible)?
It’s kind of a 3 + 1 column Split View, but the 4th “column” is just an (optional) inspector view on the detail view. The content column would be a small table of entities (instead of a list view like most apps).
📣 Speaker Announcement
From building indie apps like Tasks & Karo, we're thrilled to welcome @mufasayc 🎉
Mustafa will take us from zero to sync with CloudKit — covering containers, databases, and real-world lessons learned ☁️
Expect practical tips, honest insights, and a lot of laughs along the way 😄
#iosdev #buildInPublic #coredata #swiftTesting
Will be exploring Apple’s cktool for #cloudkit setup, which hopefully will let me populate data that will let me test sync
https://developer.apple.com/icloud/ck-tool/
27/n
#iosdev #buildInPublic #coredata #cloudKit
Roughed in a little prototype - UI mostly done, some test classes to create Tunes and TuneSets. Tomorrow rough in Collections. Nice that UIKit now lets us add UISplitViewControllers as tabs on UITabControllers.
15/n
#iosdev #buildInPublic #coredata #cloudKit
So the next question is - create a purpose-built prototype to experiment with attributed relationships or bang away at a disposable branch of my main project? I know what I _should_ do... And it will make things easier to share here without distractions. So a new project using Storyboard (i.e. UIKit) template with CoreData. Minimum deployment will be iOS 17. No CloudKit as yet, I want to be able to test migration from ordered many:many .
14/n
#iosdev #buildInPublic #coredata #cloudKit
Enough for tonight. Tomorrow I'll start prototyping the migration from explicitly ordered many:many to implicitly ordered via intermediate attributed relationship objects.
13/n
#iosdev #buildInPublic #coredata #cloudKit I also have make sure I'm selecting the Private database and the com.apple.coredata.cloudkit'recordName' is not marked queryable
https://lyons.app/2021/07/05/how-to-fix-field-recordname-is-not-marked-queryable-in-cloudkit/
gave me the answer: I have to modify the schema by adding a queryable index called recordName to the recordName metadata field for each record type so I can view the records. I also have make sure I'm selecting the Private database and the com.apple.coredata.cloudkit zone.
12/n
Edit: to fix link
#iosdev #buildInPublic #coredata #cloudKit
Got the demo working after some annoying debug sessions. Seems like it has not been revisited since 2022, and iOS 18 changed the behaviour of collectionView.dequeueReusableCell - as of iOS 18 it asserts if you call it outside of cellForItemAt indexpath. it was being called in awakeFromNib to set a font.
You would think that a company with the resources of Apple would at a minimum task interns to COMPILE AND RUN demos called out in the docs 11/n
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