CODEWITHSUNDEEP
iosjsonswift
Guilherme Abreu
Guilherme Abreu

Reputation: 99

Create JSON array and JSON Object in swift

I want do this JSON in Swift. But i cant do this.... 

{
    "room": "Platinum",
    "products": [{
        "name": "Agua",
         "quantity": 2
},
{   
    "name":"Cafe",
    "quantity": 4
}],
    "observation": "",
    "date": "2016-08-15 12:00:00"
}

My swift code returns this:

{
    date = "2016-08-25 18:16:28 +0000";
    observation = "";
    products =     (
            {
                name = cafe;
                quantity = 1;
            }
    );
    room = Platinium;

This is my code:

let para:NSMutableDictionary = NSMutableDictionary()
let prod: NSMutableDictionary = NSMutableDictionary()

para.setValue(String(receivedString), forKey: "room")
para.setValue(observationString, forKey: "observation")
para.setValue(stringDate, forKey: "date")

for product in products{
    prod.setValue(product.name, forKey: "name")
    prod.setValue(product.quantity, forKey: "quantity")
    para.setObject([prod], forKey: "products")
}

This is my input:

{
    name = coffe;
    quantity = 2;
}
{
    name = cappuccino;
    quantity = 1;
}

This is output 

{
    date = "2016-08-25 18:52:30 +0000";
    observation = "";
    products =     (
            {
                name = cappuccino;
                quantity = 1;
            }
    );
    room = Platinium;
}

I created a request to send the two products, but the code prints only the last product.

Upvotes: 3

Views: 11503

Answers (2)

pkc456
pkc456

Reputation: 8506

Create a new prodArray array which holds all the prod dictionary(name and quantity.) Set this prodArray for para array corresponding to products key.

Issue in your code:- In your forin loop, you are over-riding the value corresponding to "products" key.

let para:NSMutableDictionary = NSMutableDictionary()
let prodArray:NSMutableArray = NSMutableArray()

para.setValue(String(receivedString), forKey: "room")
para.setValue(observationString, forKey: "observation")
para.setValue(stringDate, forKey: "date")

for product in products
{
    let prod: NSMutableDictionary = NSMutableDictionary()
    prod.setValue(product.name, forKey: "name")
    prod.setValue(product.quantity, forKey: "quantity")
    prodArray.addObject(prod)
}

para.setObject(prodArray, forKey: "products")

Upvotes: 10

Wain
Wain

Reputation: 119021

You need to move let prod: NSMutableDictionary = NSMutableDictionary() inside the for loop and move para.setObject([prod], forKey: "products") after the for loop, but you also need to change so you create and add each prod to an array in the loop and then add that array to para after the loop.

Your current code keeps replacing things rather than adding so at the end you only have the last one.

Upvotes: 3

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