Transferring data from a UITableViewCell cocoa touch class to a UIViewController class - ios

Question

Okay, so what I am essentially trying to do is transfer data from a UITableViewCell class to a UIViewController class. Below is my UITableViewCell:
class OrderCell: UITableViewCell {
override func awakeFromNib() {
super.awakeFromNib()
}
var post: OrderModel!
var link: Link!
var addedList: [String:Float] = [:]
#IBOutlet weak var dishName: UILabel!
#IBOutlet weak var dishDescriptionAndPrice: UILabel!
#IBOutlet weak var numberOfOrders: UILabel!
#IBOutlet weak var addOrderBtn: UIButton!
#IBOutlet weak var subtractOderBtn: UIButton!
#IBAction func addButtonPressed(sender: AnyObject) {
if numberOfOrders.text == "9" {
numberOfOrders.text = "9"
} else {
numberOfOrders.text = String((Int(numberOfOrders.text!)! + 1))
}
addedList.updateValue(post.dishPrice, forKey: post.dishName)
print(addedList)
}
#IBAction func subtractButtonPressed(sender: AnyObject) {
if numberOfOrders.text == "0" {
numberOfOrders.text = "0"
} else {
numberOfOrders.text = String((Int(numberOfOrders.text!)! - 1))
}
}
func getOrders() -> Dictionary<String, Float> {
return addedList
}
func configureCell(post: OrderModel) {
self.post = post
self.dishName.text = post.dishName
self.dishDescriptionAndPrice.text = post.dishDescription
self.numberOfOrders.text = "0"
}
}
What I am trying to do, is have my other class (which is of UIViewController), retrieve 'addedList' from the above class. I obviously cannot use prepareForSegue, and I have had no luck find a way to do this that is compatible with these two classes. I am open to creating a new class to be the "bridge" between the two and transfer the data through, but I again cannot find a way to do this. Any and all help is greatly appreciated, thank you in advance.
To get more specific, the UIViewController holds my tableview, and the class that is above is just the object file for each individual cell. I need to transfer the data when the addButtonPressed IBaction is called.

Answer 1

You can do this by creating a delegate in your cell class. And in your view controller class, under cell for row at indexPath, add:
cell.delegate = self
And update your cell class like this:
protocol ClassNameDelegate:class {
func addButtonAction(addedList:[String:Float])
}
#IBOutlet weak var dishName: UILabel!
#IBOutlet weak var dishDescriptionAndPrice: UILabel!
#IBOutlet weak var numberOfOrders: UILabel!
#IBOutlet weak var addOrderBtn: UIButton!
#IBOutlet weak var subtractOderBtn: UIButton!
//Create a delegate
weak var delegate: ClassNameDelegate?
#IBAction func addButtonPressed(sender: AnyObject) {
if numberOfOrders.text == "9" {
numberOfOrders.text = "9"
} else {
numberOfOrders.text = String((Int(numberOfOrders.text!)! + 1))
}
addedList.updateValue(post.dishPrice, forKey: post.dishName)
print(addedList)
// Call this when added list is done and get the call to your view controller.
if delegate != nil {
delegate?.addButtonAction(addedList: addedList)
}
}
#IBAction func subtractButtonPressed(sender: AnyObject) {
if numberOfOrders.text == "0" {
numberOfOrders.text = "0"
} else {
numberOfOrders.text = String((Int(numberOfOrders.text!)! - 1))
}
}
func getOrders() -> Dictionary<String, Float> {
return addedList
}
func configureCell(post: OrderModel) {
self.post = post
self.dishName.text = post.dishName
self.dishDescriptionAndPrice.text = post.dishDescription
self.numberOfOrders.text = "0"
}
}
Finally import this delegate method in your view controller class, in the same way you import tableView delegate and datasource.

Answer 2

A cell is not the good place to store information like this. You should store the information in your view controller. And when your cell button is pressed, retrieve the information thanks to the index path of the cell.
In your cell:
func configureCell(post: OrderModel, delegate:UIViewController) {
self.dishName.text = post.dishName
self.dishDescriptionAndPrice.text = post.dishDescription
self.numberOfOrders.text = "0"
self.addButton.addTarget(delegate, action: #selector(delegate.addButtonPressed(_:)), for: UIControlEvents.touchUpInside)
}
In your view controller:
//store your data in your view controller
var data=[OrderModel]()
func addButtonPressed(_ button:UIButton){
let selectedCell=button.superview?.superview? as! OrderCell
let indexPath=tableView.indexPath(for: selectedCell)
let cellData=data[indexPath!.row]
if cellData.numberOfOrders==9{
selectedCell.numberOfOrders.text="9"
}else{
selectedCell.numberOfOrders.text=String(cellData.numberOfOrders+1)
}
}