I am using FRC to display random pairs on my tableview

Question

I am able to separate my persons objects into arrays of 2 randomly but I can't figure out how to display the pairs on my tableview. Here is my randomizer function.

func randomizer(array: [Person]) {
        guard let array = fetchedResultsController.fetchedObjects else { return  }
        let randomGenerator = GKRandomSource.sharedRandom().arrayByShufflingObjects(in: array)
        let splitSize = 2
        let _ = stride(from: 0, to: randomGenerator.count, by: splitSize).map {
            randomGenerator[$0..<min($0 + splitSize, randomGenerator.count)]
        }
    } 

Here is my tableview functions:

func numberOfSections(in tableView: UITableView) -> Int {
        guard let sections = PersonController.sharedController.fetchedResultsController.sections else { return 0 }
        return sections.count
    }

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    guard let sections = PersonController.sharedController.fetchedResultsController.sections else {
        return 2 }
    let sectionInfo = sections[section]
    return sectionInfo.numberOfObjects

}

Answer 1

How are you keeping track of your pairs in your data model? If you store your pairs in your data model you should be able to use your FRC sectionKey on that property to get the correct number of sections back.