How do I place an __NSCFNumber in an NSString? [closed]

Question

I have an NSNumber variable called task_id. I want to place that NSNumber variable in an NSString (post request). Here is what I have tried:

NSString *post = [NSString stringWithFormat:@"&task_id=%@", task_id];

and:

NSString *post = [NSString stringWithFormat:@"&task_id=%@", [NSString stringWithFormat:@"%@",task_id]];

For some reason the string doesn't include the task_id value to the POST request. How can I place the NSNumber into the string?

Update

task_id is an NSCFNumber according to this code:

NSLog(@"%@", [task_id class]);

Many thanks indeed,

Peter

Cheeseparing

what error are you receiving? – Sienese

What do you get for post? – Hardhearted

I get an empty response, which is expected. When I place a number in the string (hard-coded) I get the appropiate response. I get no objective-c errors – Cheeseparing

it doesn't matter whether its NSNumber or NSCFNumber.check this link for differences #4357563. – Kamakura

@PeterStuart: I did not ask for the response. If you want help to find the actual problem, then show the NSLog output of task_id and post, and also the code how you sent the request. – Hardhearted

Okay, sorry I misread your question, when I call post in NSLog I get "&task_id=XXX". Maybe the problem lies somewhere else then. – Cheeseparing

Answer 1

Thanks for everyones efforts. It turns out that wasn't the problem, and the problems lies within the web server!

I misunderstood the whole thing,

Thanks guys,

Peter

Cheeseparing

Answer 2

NSNumber *myNumber = @12;
NSString *myString = [myNumber stringValue];
NSString *post = [NSString stringWithFormat:@"&task_id=%@", myString];

It was already answered here

Teishateixeira

I already tried that answer. – Cheeseparing

Why should that work better than the original code? Btw. [NSNumber stringValue] does not compile. – Hardhearted

Where he said NSNumber, it is assumed that you would put in your variable for your NSNumber object. – Elisavetpol

Answer 3

it should work.But anyway, if task-id is just an int ,

NSString *post = [NSString stringWithFormat:@"&task_id=%d", task_id.intValue];

Kamakura

Why should that work better than the original code? – Hardhearted

well i said, it should work for obvious reasons. But this kinda plan B. – Kamakura

"It should work" is a useful comment. I can see no reason why "Plan B" should work better ... – Hardhearted

@MartinR care to explain "betterness"? pls . iam a leaner. – Kamakura

What I meant is: If NSString *post = [NSString stringWithFormat:@"&task_id=%d", task_id.intValue]; works then the original code would work as well. There is no reason to replace the original code with the one that you suggested. – Hardhearted