firebase upload after checkout - swift

Question

This is shopping app after user select the products send to cart then checkout after fill the fields and press Checkout (Pay) send the details of the products to my firebase database please any one can help me I use json as my load products on tableview cell
I know I don't have payment serves but on this fields of payment information will be name , phone number, and location
[{
"name": "EGG",
"price": "3.00",
"image": "http://partiklezoo.com/Egg/u0001.jpg",
"description": "one Egg",
"category": "Food",
"uid": "u0001"
},]
Code
import UIKit
class CheckoutViewController: DetailViewController, UITableViewDataSource, UITableViewDelegate, UIPickerViewDataSource, UIPickerViewDelegate {
#IBOutlet var cardNumber: UITextField!
#IBOutlet var cardExpiryMonth: UITextField!
#IBOutlet var cardExpiryYear: UITextField!
#IBOutlet var cardCvv: UITextField!
#IBOutlet var pickerPickupPoint: UIPickerView!
#IBOutlet var tableViewOrderDetails: UITableView!
#IBOutlet var labelTotalPrice: UILabel!
var model = SingletonManager.model
override func viewDidLoad() {
super.viewDidLoad()
self.configureCheckout()
self.tableViewOrderDetails.dataSource = self
self.tableViewOrderDetails.delegate = self
self.pickerPickupPoint.dataSource = self
self.pickerPickupPoint.delegate = self
//Looks for single or multiple taps.
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(CheckoutViewController.dismissKeyboard))
view.addGestureRecognizer(tap)
}
#objc func dismissKeyboard() {
//Causes the view (or one of its embedded text fields) to resign the first responder status.
self.view.endEditing(true)
}
func configureCheckout() {
pickerPickupPoint.selectedRow(inComponent: 0)
labelTotalPrice.text = "$" + String(format: "%.2f", model.calculateCartTotal())
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return model.cart.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
cell.textLabel?.text = model.products[Int(model.cart[indexPath.row][0])].name
cell.detailTextLabel?.text = String(Int(model.cart[indexPath.row][1])) + " x $" + String(format: "%.2f", model.cart[indexPath.row][4])
return cell
}
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return model.pickUpLocations.count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return model.pickUpLocations[row]["street"]! + ", " + model.pickUpLocations[row]["suburb"]!
}
#IBAction func payNow(_ sender: Any) {
var error = ""
if self.model.cart.count == 0 {
error = "Your cart is empty."
}
else if (self.cardNumber.text?.isEmpty)! {
error = "Please enter your card number."
}
else if (self.cardExpiryMonth.text?.isEmpty)! {
error = "Please enter the expiry month of your card."
}
else if (self.cardExpiryYear.text?.isEmpty)! {
error = "Please enter the expiry year of your card."
}
else if (self.cardCvv.text?.isEmpty)!{
error = "Please enter the CVV number of your card."
}
if error.isEmpty {
showAlertMsg("Confirm Purchase", message: "Pay " + labelTotalPrice.text!, style: UIAlertControllerStyle.actionSheet)
}
else {
showAlertMsg("Error", message: error, style: UIAlertControllerStyle.alert)
}
}
var alertController: UIAlertController?
func showAlertMsg(_ title: String, message: String, style: UIAlertControllerStyle) {
self.alertController = UIAlertController(title: title, message: message, preferredStyle: style)
if style == UIAlertControllerStyle.actionSheet {
alertController?.addAction(UIAlertAction(title: "Pay", style: .default, handler: { _ in
self.checkout()
}))
alertController?.addAction(UIAlertAction(title: "Cancel", style: .cancel))
} else {
alertController?.addAction(UIAlertAction(title: "Okay", style: .default))
}
self.present(self.alertController!, animated: true, completion: nil)
}
func checkout() {
var success = true
for count in 0...self.model.cart.count - 1 {
let product = self.model.products[Int(self.model.cart[count][0])]
let quantity = Int(self.model.cart[count][1])
let total = self.model.cart[count][4]
let material = self.model.cart[count][3] == 0.0 ? "pla" : "abs"
let painting = self.model.cart[count][2] == 0.0 ? "false" : "true"
let temp = self.model.purchase(product: product, quantity: quantity, total: total, material: material, painting: painting)
if !temp {
success = false
}
}
if !success {
let error = "Oops! Something went wrong. Please try again later."
showAlertMsg("Error", message: error, style: UIAlertControllerStyle.alert)
} else {
print("Success! Checkout complete.")
self.cardNumber.text = ""
self.cardExpiryMonth.text = ""
self.cardExpiryYear.text = ""
self.cardCvv.text = ""
self.labelTotalPrice.text = "$0.00"
self.model.clearCart()
self.tableViewOrderDetails.reloadData()
self.performSegue(withIdentifier: "Thankyou", sender: self)
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let confirmationVc = (segue.destination as! UINavigationController).topViewController as! ConfirmationViewController
confirmationVc.location = self.model.pickUpLocations[self.pickerPickupPoint.selectedRow(inComponent: 0)]
}
}
this is my objective
Class Model: NSObject, CLLocationManagerDelegate {
var segueArray = [String]()
var seguesDictionary = Dictionary<String, UIImage>()
var products = [Product]()
var storedProducts = [NSManagedObject]()
var cart = [[Double]]()
var storedCart = [NSManagedObject]()
var pickUpLocations = [[String: String]]()
let locationManager = CLLocationManager()
override init() {
super.init()
segueArray.append("Home")
segueArray.append("List")
segueArray.append("Search")
segueArray.append("Cart")
segueArray.append("Finder")
segueArray.append("Checkout")
seguesDictionary["Home"] = UIImage(named: "home")
seguesDictionary["List"] = UIImage(named: "list")
seguesDictionary["Search"] = UIImage(named: "search")
seguesDictionary["Cart"] = UIImage(named: "cart")
seguesDictionary["Finder"] = UIImage(named: "finder")
seguesDictionary["Checkout"] = UIImage(named: "checkout")
self.loadProducts()
self.refreshProducts()
self.loadCart()
self.configureLocManager()
}
func loadProducts() {
let managedContext = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
let fetchRequest = NSFetchRequest<NSFetchRequestResult>(entityName: "Products")
do {
let results = try managedContext.fetch(fetchRequest)
storedProducts = results as! [NSManagedObject]
if storedProducts.count > 0 {
for index in 0...storedProducts.count - 1 {
let binaryData = storedProducts[index].value(forKey: "image") as! Data
let image = UIImage(data: binaryData)
let name = storedProducts[index].value(forKey: "name") as! String
let price = storedProducts[index].value(forKey: "price") as! Double
let details = storedProducts[index].value(forKey: "details") as! String
let category = storedProducts[index].value(forKey: "category") as! String
let uid = storedProducts[index].value(forKey: "uid") as! String
let loadedProduct = Product(name: name, price: price, image: image!, details: details, category: category, uid: uid)
products.append(loadedProduct)
}
}
}
catch let error as NSError
{
print("Could not load. \(error), \(error.userInfo)")
}
}
func refreshProducts() {
let url = NSURL(string: "http://partiklezoo.com/3dprinting/")
let config = URLSessionConfiguration.default
config.isDiscretionary = true
let session = URLSession(configuration: config)
let task = session.dataTask(with: url! as URL, completionHandler:
{(data, response, error) in
let json = JSON(data: data!)
for count in 0...json.count - 1
{
let newProduct = Product()
newProduct.name = json[count]["name"].string
newProduct.price = Double(json[count]["price"].string!)
newProduct.details = json[count]["description"].string
newProduct.category = json[count]["category"].string
newProduct.uid = json[count]["uid"].string
let imgURL = json[count]["image"].string!
self.addItemToList(newProduct, imageURL: imgURL)
}
})
task.resume()
}
func checkForProduct(_ searchItem: Product) -> Int {
var targetIndex = -1
if products.count > 0 {
for index in 0...products.count - 1 {
if products[index].uid == searchItem.uid {
targetIndex = index
}
}
}
return targetIndex
}
func addItemToList(_ newProduct: Product!, imageURL: String) {
if checkForProduct(newProduct) == -1 {
let managedContext = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
let picture = UIImageJPEGRepresentation(loadImage(imageURL), 1)
let entity = NSEntityDescription.entity(forEntityName: "Products", in: managedContext)
let productToAdd = NSManagedObject(entity: entity!, insertInto: managedContext)
productToAdd.setValue(newProduct.category, forKey: "category")
productToAdd.setValue(newProduct.details, forKey: "details")
productToAdd.setValue(picture, forKey: "image")
productToAdd.setValue(newProduct.name, forKey: "name")
productToAdd.setValue(newProduct.price, forKey: "price")
productToAdd.setValue(newProduct.uid, forKey: "uid")
do
{
try managedContext.save()
}
catch let error as NSError
{
print("Could not save. \(error), \(error.userInfo)")
}
storedProducts.append(productToAdd)
newProduct.image = UIImage(data: picture!)
products.append(newProduct)
}
}
func loadCart() {
let managedContext = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
let fetchRequest = NSFetchRequest<NSFetchRequestResult>(entityName: "Cart")
do {
let results = try managedContext.fetch(fetchRequest)
storedCart = results as! [NSManagedObject]
if storedCart.count > 0 {
for index in 0...storedCart.count - 1 {
let product = storedCart[index].value(forKey: "product") as! Double
let quantity = storedCart[index].value(forKey: "quantity") as! Double
let finish = storedCart[index].value(forKey: "finish") as! Double
let material = storedCart[index].value(forKey: "material") as! Double
let totalPrice = storedCart[index].value(forKey: "total") as! Double
let temp = [product, quantity, finish, material, totalPrice]
cart.append(temp)
}
}
}
catch let error as NSError
{
print("Could not load. \(error), \(error.userInfo)")
}
}
func addToCart(product: Product, quantity: Double, finish: Double, material: Double, totalPrice: Double) {
let managedContext = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
let entity = NSEntityDescription.entity(forEntityName: "Cart", in: managedContext)
let productToAdd = NSManagedObject(entity: entity!, insertInto: managedContext)
productToAdd.setValue(checkForProduct(product), forKey: "product")
productToAdd.setValue(quantity, forKey: "quantity")
productToAdd.setValue(finish, forKey: "finish")
productToAdd.setValue(material, forKey: "material")
productToAdd.setValue(totalPrice, forKey: "total")
do
{
try managedContext.save()
}
catch let error as NSError
{
print("Could not save. \(error), \(error.userInfo)")
}
let temp = [Double(checkForProduct(product)), quantity, finish, material, totalPrice]
storedCart.append(productToAdd)
cart.append(temp)
}

Answer 1

I am not sure I understand the question but from the comments I believe the OP is asking for example code to put into an action button to write date to Firebase. So here it is.
(note: please see comments as the OP didn't clarify what he was after so it's not clear if this is an answer or not)
Start with initialzing Firebase in your view controller
class ViewController: UIViewController {
var ref: DatabaseReference!
override func viewDidLoad() {
super.viewDidLoad()
self.ref = Database.database().reference()
then lets have a button press write two cars to firebase in a 'car_list' node
#IBAction func button0Action(_ sender: Any) {
let itemDict0 = [
"Name": "Car",
"price": "2000"]
let itemDict1 = [
"Name": "Car",
"price": "3000"]
let carRef = self.ref.child("car_list")
carRef.childByAutoId().setValue(itemDict0)
carRef.childByAutoId().setValue(itemDict1)
}
and the result in Firebase looks like this
car_list
-LKYuRKpLL_JXsDGsYWY
Name: "Car"
Price: "2000"
-LKYuRKpLL_JXsDGsYWZ
Name: "Car"
Price: "3000"
EDIT: I had intially set this up like a grocery list per the data in the question but per a comment from the OP they want to make it cars and prices, so that's how it is now.