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iosswiftuicloudkit
Digital Dae'
Digital Dae'

Reputation: 1

Is it possible save images separate from the record they are used in inside CloudKit?

I want to let users of the app create posts for a feed but I want to store post images separate to speed up load times. Is it possible to store images in one record and then fetch them along with the post that they belong to at the same time that I fetch the post? If so how would I implement this in SwiftUI?

I have already figured out how to save/fetch post just not images.

Upvotes: 0

Views: 113

Answers (1)

Clifton Labrum
Clifton Labrum

Reputation: 14070

Yes, you can certainly do this. I'm going to assume your recordType is a Post that has the content for an item in your feed.

I can think of two options. Regardless of what approach you take, you should be storing your images as CKAsset on CloudKit.

== Option 1 ==

You can have a field on a Post that is of type Asset List and load it up with CKAsset records which will be your images. When you access each CKAsset, it gets downloaded after you have the original Post record. This is probably the cleanest approach.

== Option 2 ==

Make another recordType called Image and it could have a field of type Reference (a CKReference) back to a Post. So as each Image is created, it gets assigned a Post and points to it.

When you query for your Post records, you also query for all the Image records that are connected to the Post. This could be done like this:

let query = CKQuery(recordType: "Image", predicate: NSPredicate(format: "post = %@", CKRecord.Reference(recordID: CKRecord.ID(recordName: yourPostRecordName), action: .deleteSelf)))
let operation = CKQueryOperation(query: query)
  
var images = [CKRecord]()
operation.recordFetchedBlock = { record in
  //Load up all the images
  images.append(record)
}

operation.queryCompletionBlock = { cursor, error in
  //All the image records have been downloaded, or there was an error
}

yourContainerDatabase.add(operation)

Upvotes: 0

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