How to save data to model coredata - ios

Question

I want to save my data to core data when a button is clicked here is my action button code now let app = UIApplication.sharedApplication().delegate as! AppDelegate
let context = app.managedObjectContext
let entity = NSEntityDescription.entityForName("Cart", inManagedObjectContext: context)
let cart = Cart(entity: entity!, insertIntoManagedObjectContext: context) but the only problem now is that i dont how to save here is my code to parse json
Alamofire.request(.GET, url!, headers: headers).responseJSON { (response) in
let result = response.result
if response.result.isSuccess{
let jsonObj = JSON(result.value!)
if let x = jsonObj["Items"].array {
x.forEach
{
if let uw = ($0["name"]).string{
print(uw)
let qw = ($0["image"]).string
if let rw = ($0["price"]).int{
if let hu = ($0["id"]).int{
print(hu)
let foo = Rest(name: uw, imageUrl: qw!, price: "₦\(rw)")
self.rest.append(foo)
}
}
}
}
dispatch_async(dispatch_get_main_queue()) {
self.tableView.reloadData()
actInd.stopAnimating()
}
}
}
So i have an array called rest which is where i want get data for the tableview. I want to save information of each cell tapped into coredata here is a screenshot of the app
So when the sure button is tapped it saves the item to coredata
here is my code incase you neecode

Answer 1

Try this, adapted to your code.
In the portion that you have (...let app=...) replace it by this:
let app2 = UIApplication.sharedApplication().delegate as! UIApplicationDelegate
if let context2 = app2.managedObjectContext {
let cart2 = NSEntityDescription.insertNewObjectForEntityForName("Cart", inManagedObjectContext: context2) as! Cart
cart2.name = self.res.name
cart2.price = self.res.price
cart2.url = self.res.imageUrl
cart2.id = ""
// Perform a save operation
do {
try context2?.save()
} catch {
let saveError = error as NSError
print(saveError)
}
}
Let me know if this works.
Cheers

Answer 2

Just an example here when you want to save your data in coredata. You have to create entity/model and all the setup for core data elements. For details please study https://www.raywenderlich.com/115695/getting-started-with-core-data-tutorial
func saveName(name: String) {
//1
let appDelegate =
UIApplication.sharedApplication().delegate as! AppDelegate
let managedContext = appDelegate.managedObjectContext
//2
let entity = NSEntityDescription.entityForName("Person",
inManagedObjectContext:managedContext)
let person = NSManagedObject(entity: entity!,
insertIntoManagedObjectContext: managedContext)
//3
person.setValue(name, forKey: "name")
//4
do {
try managedContext.save()
//5
people.append(person)
} catch let error as NSError {
print("Could not save \(error), \(error.userInfo)")
}
}