SwiftUI - how to get newly created object to navigation link - swiftui

Question

I have a form that saves a new customer when a trailing navigation bar button labeled "Save" is pressed. I would then like to load a new view based on the new customer object. One possible way might be to activate a navigation link with an empty view like this:
NavigationLink(destination: CustomerDetailView(customer: currentCustomer), isActive: self.$showCustomerDetail) { EmptyView() }
Setting showCustomerDetail to true would make trigger the link. But to get a value for currentCustomer I'd need a dynamic fetch request, probably using the new UUID as a predicate. And that's where things fall apart. I can't figure out how to get the result of the fetch request to the currentCustomer variable.
Here are the useful parts of the code:
Navigation Bar Buttons
.navigationBarItems(leading:
Button(action: {
self.presentationMode.wrappedValue.dismiss()
}, label: {
Text("Cancel")
}), trailing:
Button(action: {
let newCustomer = Customer(context: self.moc)
newCustomer.id = UUID()
newCustomer.custName = self.name
}
self.appDelegate.saveContext()
self.showCustomerDetail = true
})
}, label: {
Text("Save")
})
Fetch Request
currentCustomer = FetchRequest<Customer>(entity: Customer.entity(), sortDescriptors: [], predicate: NSPredicate(format: "id == %#", custID as CVarArg))

Answer 1

Here is appropriate approach (as newCustomer is already saved into database it can be just used):
.navigationBarItems(leading:
Button(action: {
self.presentationMode.wrappedValue.dismiss()
}, label: {
Text("Cancel")
}), trailing:
Button(action: {
let newCustomer = Customer(context: self.moc)
newCustomer.id = UUID()
newCustomer.custName = self.name
}
self.appDelegate.saveContext()
self.currentCustomer = newCustomer // << here !!
self.showCustomerDetail = true
})
}, label: {
Text("Save")
})