CODEWITHSUNDEEP
iphoneiosjson
dormitkon
dormitkon

Reputation: 2526

JSonKit deserialization problem

I have JSON as NSString:

[{"bus_number":"1","created_at":"2011-08-15T23:07:52Z","id":1,"model":"Setra","registar_number":"123456","seats":50,"tour_id":1,"updated_at":"2011-08-15T23:07:52Z"},{"bus_number":"2","created_at":"2011-08-15T23:07:52Z","id":2,"model":"Mercedes","registar_number":"2234","seats":60,"tour_id":1,"updated_at":"2011-08-15T23:07:52Z"}]

and I'm trying to convert this NSString to NSDictionary.

When I use:

NSDictionary *sourceDictionary = [[response bodyAsString] objectFromJSONString];

I get NSDictionary like this:

(
    {
    "bus_number" = 1;
    "created_at" = "2011-08-15T23:07:52Z";
    id = 1;
    model = Setra;
    "registar_number" = 123456;
    seats = 50;
    "tour_id" = 1;
    "updated_at" = "2011-08-15T23:07:52Z";
},
    {
    "bus_number" = 2;
    "created_at" = "2011-08-15T23:07:52Z";
    id = 2;
    model = Mercedes;
    "registar_number" = 2234;
    seats = 60;
    "tour_id" = 1;
    "updated_at" = "2011-08-15T23:07:52Z";
}

)

but, there is a problem with this NSDictionary, I can't access to their elements, some elements aren't NSStrings (like model).

How to convert JSONString to NSDictionary with NSStrings?

EDIT:

When I try to Log in console this with:

for (id key in sourceDictionary) {
            NSLog(@"key: %@, value: %@", key, [sourceDictionary objectForKey:key]);
        }

I get exception:

-[__NSArrayM objectForKey:]: unrecognized selector sent to instance 0x1c3a50

Upvotes: 1

Views: 2103

Answers (2)

Greg Combs
Greg Combs

Reputation: 4262

If you're getting this from RestKit, and it looks like you are, you can just do this:

NSMutableDictionary *myDictionary = [response.body mutableObjectFromJSONData];

This way, you're pulling in the raw the binary data and you can avoid some unnecessary (and costly) conversions back and forth to strings in the process. Also, I stipulated mutable, because chances are you'll want to manipulate or muck about with the data when you get it ... again, there are costs involved in conversions between non-mutable and mutable objects from the JSONKit superclasses ... so by going with mutable from the outset, you just saved yourself some time.

Upvotes: 2

jtbandes
jtbandes

Reputation: 118671

Those are actually NSStrings, they just don't have quotation marks when you print them out to the console.

Upvotes: 1

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