How to pass parse data from tableview to detail view controller? - ios

Question

New to parse backend and coding all together...
Looking to pass data from my HomeTimelineViewController(VC #1), to my ProductDetailViewController(VC #2) through the UIStoryboard segue.
Here is my code for VC #1 :
import UIKit
import Parse
class HomeTimelineViewController: UIViewController, UITableViewDelegate {
#IBOutlet var homeTimelineTableView: UITableView!
var imagePNG = [PFFile]()
var shortDescription = [String]()
var productTitle = [String]()
var productPrice = [String]()
override func viewDidLoad() {
super.viewDidLoad()
var query = PFQuery(className: "Product")
query.orderByDescending("createdAt")
query.findObjectsInBackgroundWithBlock {
(products: [AnyObject]?, error: NSError?) -> Void in
if error == nil {
// success fetching objects
for product in products! {
self.imagePNG.append(product["imagePNG"] as! PFFile)
self.shortDescription.append(product["shortDescription"] as! String)
self.productTitle.append(product["title"] as! String)
self.productPrice.append(product["price"] as! String)
}
// reload the timeline table
self.homeTimelineTableView.reloadData()
}else {
println(error)
}
}
}
// table view population beginning
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return imagePNG.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let singleCell: ProductTableViewCell = tableView.dequeueReusableCellWithIdentifier("Product Cell") as! ProductTableViewCell
// short description
singleCell.productCellShortDescriptionLabel.text = shortDescription[indexPath.row]
// price
singleCell.productCellPriceLabel.text = productPrice[indexPath.row]
// title
singleCell.productCellTitleLabel.text = productTitle[indexPath.row]
// image
imagePNG[indexPath.row].getDataInBackgroundWithBlock {
(imageData: NSData?, error: NSError?) -> Void in
if imageData != nil {
let image = UIImage(data: imageData!)
singleCell.productCellImageview.image = image
}
}
return singleCell
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
var productDetailVC: ProductDetailViewController = segue.destinationViewController as! ProductDetailViewController
productDetailVC.productDetailTitleLabel = shortDescription
}
}
Here is my code for VC #2 (DetailView):
import UIKit
import Parse
class ProductDetailViewController: UIViewController {
#IBOutlet var tagProduct: UIButton!
#IBOutlet var productDetailTitle: UITextView!
#IBOutlet var productDetailImage: UIImageView!
#IBOutlet var productDetailShortDescription: UITextView!
#IBOutlet var productDetailLongDescription: UITextView!
var productDetailTitleLabel = [String]()
var productDetailImageView = [PFFile]()
var productDetailShortDescriptionLabel = [String]()
var productDetailLongDescriptionLabel = [String]()
override func viewDidLoad() {
super.viewDidLoad()
// tag product button
tagProduct.layer.borderColor = UIColor.blackColor().CGColor
tagProduct.layer.borderWidth = 0.5
tagProduct.layer.cornerRadius = 5
productDetailTitle.text = productDetailTitleLabel
productDetailShortDescription.text = productDetailShortDescriptionLabel
productDetailLongDescription.text = productDetailLongDescriptionLabel
}
}
I can't continue with my code because it keeps giving me an error:
"Cannot assign a value of type '[(String)]' to a value of type 'String!'.
Any tips? Thank you!

Answer 1

Try this:
In TableViewController:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
var productDetailVC: ProductDetailViewController = segue.destinationViewController as! ProductDetailViewController
if let selectedArrayIndex = tableView.indexPathForSelectedRow()?.row {
productDetailVC.productDetailTitleLabel = shortDescription[selectedArrayIndex]
}
}
In DetailsView change this:
var productDetailTitleLabel = [String]()
to
var productDetailTitleLabel = String()