iOS JSON Parsing

Question

I have two kinds of json formats that are getting parsed.

The data that gives no issues and when i fetch using "orderListView" key, the array gets generated fine. Array count is 2 in this case.

{
    "orderListView": [
    {

        "status": "AC",
        "totalRecords": "5",

    },
    {

        "status": "SH",
        "totalRecords": "5",

        }
    ]  
}

There's a square bracket missing in the below data and this too gets parsed into two objects where as this should have been one object similar to the above json. How do i handle this issue?

{
"orderListView": {

    "status": "AC",
    "totalRecords": "1",
    }
}

EDIT : Tried solution

 if ([[appDelegate.orderListJson objectForKey:@"orderListView"] isKindOfClass:[NSMutableArray class]]) {
    orderMainArray = [appDelegate.orderListJson objectForKey:@"orderListView"];
 }

else
{
      NSArray *array = [NSArray arrayWithObject:[appDelegate.orderListJson objectForKey:@"orderListView"]];
    orderMainArray = [array copy];

}

Why you want it in an array? You should get it in an dictionary. — Ajay, Jan 29 '14 at 11:24
it is one object and each cell in the table should be displayed with all the values in this 1 object... So i convert the dictionary into a mutable array and then load the data onto my tableview — Sharanya K M, Jan 29 '14 at 11:25
and why your colleague don't send you an array in the second case? — oiledCode, Jan 29 '14 at 11:26
Oh I think you should consult your fellow colleague and tell him that the value of key "orderListView" should always be an array[]. — Ajay, Jan 29 '14 at 11:27
NSString *str = [[[YourArray valueforkey:@"orderListView"]]valueforkey:@"status"]; — Kirit Modi, Jan 29 '14 at 11:27
Its better to tell your colleague to maintain the consistency. "orderListView" should be always an array — Anil Varghese, Jan 29 '14 at 11:28
using your appDelegate singleton to access global data is bad, and you should feel bad. http://stackoverflow.com/questions/145154/what-should-my-objective-c-singleton-look-like — Laszlo, Jan 29 '14 at 11:56

score 1 · Accepted Answer · answered Jan 29 '14 at 11:29

1

You don't 'resolve' it, you deal with it or get the source JSON changed.

To deal with it, check the Class type of the object that you get back when you request orderListView. It will either be an NSArray or NSDictionary so you can test with isKindOfClass: to decide what to do.

answered Jan 29 '14 at 11:29

Wain

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this is a good suggestion.. One i know whether its an array or nsdictionary.. how do i create an array by making all those key pair values a one object? – Sharanya K M Jan 29 '14 at 11:39
The key pairs will already be in one object - the dictionary. You create an array with `@[ theValueITested ]` or [NSArray arrayWithObject:]` – Wain Jan 29 '14 at 11:42
But this will not make all of it one object in an array... In the 1st case i have 2 objects in the array. In the 2nd case i want it to be one object in the array... – Sharanya K M Jan 29 '14 at 11:44
That is what it will do. If `valueForKey:@ orderListView"` gives you a dictionary and you add it to an array you have an array containing one object. – Wain Jan 29 '14 at 11:46
I have tried what you said and doesnt give me the expected result. Please check my code i have added and tell me if i have missed something – Sharanya K M Jan 29 '14 at 11:51
You won't get a mutable array - unless you are using a special parser. Check for `NSArray`. – Wain Jan 29 '14 at 11:53
Add `NSLog(@"%@", NSStringFromClass([[appDelegate.orderListJson objectForKey:@"orderListView"] class]));` - what does it log? – Wain Jan 29 '14 at 11:54
My bad.. i was trying handling this in a different method which was not called... Thanks.. Solved my problem :-) – Sharanya K M Jan 29 '14 at 11:58

score 0 · Answer 2 · answered Jan 29 '14 at 11:52

0

the problem is @ your fellow colleague side.

json should maintain one standard. either should populate into an array or to an object. the above two cases json is coming two different way.

@ your end you can manage using exception handling but, it is risky.

answered Jan 29 '14 at 11:52

Premraj

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2

Don't use exception handling for logical processing. This is very bad practice. Check the data and act accordingly. – Wain Jan 29 '14 at 11:53

iOS JSON Parsing

2 Answers2