How do I display, update and delete my cells? - ios

Question

I am taking a class to create a client list iOS app and connect it to Realm, I am not a great coder and my online school teaches poorly, so Youtube is my teacher most of the time. I am working off a Realm app video but am unsure how to do things past where they end. The app so far is a tableview, when I select the plus button in the top right corner, it opens a field to enter the client's name, address, city, state and zip code. when I click save it then stores the info to Realm and displays a Subtitle cell with the client's name and city. I would like to be able to delete the cell by swiping and also be able to view the full contents of the cell and update the cell. If anyone can offer any assistance I would be very grateful. Please see my ViewController below:
import UIKit
import RealmSwift
class ContactItem: Object {
#objc dynamic var name = ""
#objc dynamic var addressOne = ""
#objc dynamic var addressTwo = ""
#objc dynamic var city = ""
#objc dynamic var state = ""
#objc dynamic var zipCode = ""
#objc dynamic var _id: ObjectId = ObjectId.generate()
convenience init(name: String, addressOne: String, addressTwo: String, city: String, state: String, zipCode: String, _id: String) {
self.init()
self.name = name
self.addressOne = addressOne
self.addressTwo = addressTwo
self.city = city
self.state = state
self.zipCode = zipCode
}
override static func primaryKey() -> String? {
return "_id"
}
}
class ViewController: UIViewController {
#IBOutlet weak var tableView: UITableView!
let mike = ContactItem(name: "Mike", addressOne: "234 Maple Lane", addressTwo: "", city: "Ankeny", state: "Ohio", zipCode: "45665", _id: "0")
var people = try! Realm().objects(ContactItem.self).sorted(byKeyPath: "name", ascending: true)
var realm = try! Realm()
var db: OpaquePointer?
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
if realm.isEmpty {
try! realm.write {
realm.add(mike)
}
}
let path = realm.configuration.fileURL?.path
print("Path: \(String(describing: path))")
}
#IBAction func addButtonTapped(_ sender: Any) {
let alertController = UIAlertController(title: "Add Client", message: "", preferredStyle: .alert)
//when the user clicks the add button, present them with a dialog to enter the task name.
alertController.addAction(UIAlertAction(title: "Save", style: .default, handler: {
alert -> Void in
let nameField = alertController.textFields![0] as UITextField
let addOneField = alertController.textFields![1] as UITextField
let addTwoField = alertController.textFields![2] as UITextField
let cityField = alertController.textFields![3] as UITextField
let stateField = alertController.textFields![4] as UITextField
let zipField = alertController.textFields![5] as UITextField
//Create a new Task with the text that the user entered.
let newPerson = ContactItem(name: nameField.text!, addressOne: addOneField.text!, addressTwo: addTwoField.text!, city: cityField.text!, state: stateField.text!, zipCode: zipField.text!, _id: "")
//Any writes to the Realm must occur in a write block
try! self.realm.write {
//Add the Task to the Realm. That's it!
self.realm.add(newPerson)
self.tableView.reloadData()
}
}))
alertController.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
alertController.addTextField(configurationHandler: {
(nameField: UITextField!) -> Void in nameField.placeholder = "Enter Client Name"
})
alertController.addTextField(configurationHandler: {
(addOneField: UITextField!) -> Void in addOneField.placeholder = "Enter First Address Line"
})
alertController.addTextField(configurationHandler: {
(addTwoField: UITextField!) -> Void in addTwoField.placeholder = "Enter Second Address Line"
})
alertController.addTextField(configurationHandler: {
(cityField: UITextField!) -> Void in cityField.placeholder = "Enter City"
})
alertController.addTextField(configurationHandler: {
(stateField: UITextField!) -> Void in stateField.placeholder = "Enter State"
})
alertController.addTextField(configurationHandler: {
(zipField: UITextField!) -> Void in zipField.placeholder = "Enter Zip Code"
})
//Show dialog.
self.present(alertController, animated: true)
}
}
extension ViewController: UITableViewDelegate {
}
extension ViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return people.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
cell.textLabel?.text = people[indexPath.row].name
cell.detailTextLabel?.text = people[indexPath.row].city
return cell
}
}
Any help would be greatly appreciated.
PS. There may be some garbage code in there, I was trying a lot of different things before so I might have accidentally left some confusing code. I apologize for the mess.