Saving to the Cloud - ViewController.swift created by dengsauve - https://repl.it/@dengsauve/Saving-to-the-Cloud-ViewControllerswift

Saving to the Cloud - ViewController.swift.swift

/* Notes based on the tutorial here: https://www.youtube.com/watch?v=2Y45vk7d_Bg

Covered Here:
- Saving to iCloud with CloudKit
- Querying iCloud with CloudKit
- Pull Motion Refresh
- Using a cell programatically instead of dequeing a model
    Useful for quick coding


Must have the following:
- CloudKit Enabled
    Project > Capabilities > iCloud > CloudKit
- Import CloudKit
*/

let database = CKContainter.default().privateCloudDatabase
// Kilo runs into authentication issues, must sign into iPhone with apple account

let notes = [CKRecord]

override func viewDidLoad() {
    super.viewDidLoad()
    
    // Code for Pull Refresh
    // Create refreshControl
    let refreshControl = UIRefreshControl()
    // Set the text that displays when activated
    refreshControl.attributedTitle = NSAttributedString(string: "Pull to refresh")
    // Set the action that occurs when refresh is pulled
    refreshControl.addTarget(self, action: #selector(queryDatabase), for: .valueChanged)
    // Set the tableView refreshControl to your created refreshControl
    self.tableView.refreshControl = refreshControl
    
    // Get existing data
    queryDatabase()
}

//...

// Save a Note to the cloud database
func saveToCloud(note: String){
    // Create a new CloudKit Record type: "Note"
    let newNote = CKRecord(recordType: “Note”)
    // Save the note to the CloudKit Record key: "Content"
    newNote.setValue(note, forKey: “content”)

    // Save the CloudKit Record to the Database
    database.save(newNote) { (record _) in
        // Check that the record isn't nil
        guard record != nil else {return}
        print("saved record with note")
    }
}

// Query all notes from cloud database
// Needs @objc to be selectored
@objc func queryDatabase(){
    let query = CKQuery(recordType: "Note", predicate: NSPredicate(value: true))
    // Not segregating data -> no zones
    database.perform(query, inZoneWith: nil) { (records, _) in
        guard let records = records else {return}
        let sortedRecords = records.sorted(by: { $0.creationDate! > $1.creationDate! })
        self.notes = sortedRecords
        DispatchQueue.main.async {
            // gets rid of the refresh spinner
            self.tableView.refreshControl?.endRefreshing()
            self.tableView.reloadData()
        }
    }
}

extension ViewController: UITableViewDataSource {
    
    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return notes.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = UITableViewCell()
        let note = notes[indexPath.row].value(forKey:"content") as! String
        cell.textLabel?.text = note
        
        return cell
    }
}