Tarvo Mäesepp Tarvo Mäesepp - 1 year ago 80
iOS Question

Passing value from Firebase from one tableView to another

I am trying to pass value I get from Firebase to another

. I get 2 values from Firebase - "Brands" and "Products". I am trying to make like car app. If you click on Ford then new
will appear and shows all the Ford models. This is what I've done so far.

like this I get Brands from Firebase:

func parseSnusBrands(){
let ref = FIRDatabase.database().reference().child("Snuses").child("Brands")

ref.observeSingleEventOfType(.Value, withBlock: { (snapshot) in
if snapshot.exists() {
if let all = (snapshot.value?.allKeys)! as? [String]{
for a in all{
if let products = snapshot.value![a] as? [[String:String]]{

And like this I detect which cell is clicked and print the product that belongs to the clicked Brand:

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath){
print("products at \(indexPath.row) --> \(snusBrandsArray[indexPath.row]["value"])")


How to pass the
to new
? I tried using segues and looking for tutorials like "How to pas value between viewControllers" but I am out of luck. Right now I have 2
files and one
file. Do I need some more files?

Answer Source

For send data, first of all declare your variable in 2nd view controller..

  var productsValue = [[String:String]]()

and in 1st viewcontroller

  var valueTopass = [[String:String]]()

Than in didSelectRowAtIndexPath, take a value in one valueTopass

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    print("products at \(indexPath.row)  --> \(snusBrandsArray[indexPath.row]["value"])")
    if let products = snusBrandsArray[indexPath.row]["value"] as? [[String:String]]{
        valueTopass = products
        performSegueWithIdentifier("toProducts", sender: self)

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?){

    if (segue.identifier == "toProducts") {
        var viewController = segue.destinationViewController as! SnusProductsTableViewController
        viewController.productsValue = valueTopass
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