CODEWITHSUNDEEP
swiftcore-data
mihema
mihema

Reputation: 358

How to access result on FetchRequest

Following How to limit the number of results in a FetchRequest in SwiftUI I created a FetchRequest to get the latest billing number.

My code looks like this

var billNo: FetchRequest<Payments>
...
init() {
    let request: NSFetchRequest<Payments> = Payments.fetchRequest()
    request.fetchLimit = 1
    request.sortDescriptors = [NSSortDescriptor(key: "rechnungsNummer", ascending: false)]
    billNo = FetchRequest<Payments>(fetchRequest: request)
}

But how on earth do I get access to the values of billNo.rechnungsNummer? billNo.wrappedValue.first?.rechnungsNummer ist always nil.

Or has it all changed the last two years?

btw: it's all inside a view. ;)

Upvotes: 1

Views: 218

Answers (1)

mihema
mihema

Reputation: 358

Thanks to vadian for the missing hint.

Here's my working code:

@FetchRequest var billNo: FetchedResults<Payments>
...
init() {
    let request: NSFetchRequest<Payments> = Payments.fetchRequest()
    request.fetchLimit = 1
    request.sortDescriptors = [NSSortDescriptor(key: "rechnungsNummer", ascending: false)]
    _billNo = FetchRequest<Payments>(fetchRequest: request)
}

And in body, I can access this easily with

billNo.first?.rechnungsNummer

I hope it might help other beginners like me. :-)

Upvotes: 1

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