How to fetch data from this specific json (iphone) - iphone

Question

Can anyone tell me how to find the model from this ?
it is giving me null all the time
{
"Status": 200,
"Data": [
{
"id": "1",
"custno": "0000235",
"locno": "00001",
"mfg": "KABA-MAS",
"model": "Cencon Gen II",
"serial": "GF8912",
"install": "2011-10-01",
"removed": "0000-00-00",
"warranty": "2012-01-10",
"seragrno": "A",
"equiploc": "Testing",
"notes": "This is a test lock to test our system. I this is it good.",
"invoice": "A",
"eqtype": "Lock",
"plan": "1",
"status": "0",
"image": "cencon_main_1318703242.gif",
"pmrequired": "1",
"locktime": null,
"lockby": null,
"pmrequiredText": "Yes",
"statusText": "Active",
"planTypeText": "Plan I"
},
{
"id": "2",
"custno": "0000235",
"locno": "00001",
"mfg": "adsdad",
"model": "",
"serial": "",
"install": "2011-10-24",
"removed": "0000-00-00",
"warranty": "0000-00-00",
"seragrno": "",
"equiploc": "",
"notes": "",
"invoice": "",
"eqtype": "",
"plan": "",
"status": "-1",
"image": "",
"pmrequired": "0",
"locktime": null,
"lockby": null,
"pmrequiredText": "No",
"statusText": "Pending",
"planTypeText": null
}
]
}

Answer 1

I am not sure...but there should be some obj.value type of structure, like in javascript
u can access it using something like "responce.data.model"

Answer 2

assuming the JSON has been turned into an NSDictionary:
NSArray *items = [dictionary objectForKey:#"Data"];
for (item in items) {
NSLog(#"model = %#", [item objectForKey:#"model"]);
}
If you are looking for how to turn the JSON into an NSDictionary try:
iPhone/iOS JSON parsing tutorial

Answer 3

try this :
NSData *responseData;
NSMutableDictionary *response ;
NSString *urlStr = [NSString stringWithFormat:#"http://www.example.com"];
NSLog(#"%#",urlStr);
NSURLRequest *request = [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:[urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]];
responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *json = [[[NSString alloc] initWithData:responseData encoding:NSASCIIStringEncoding] autorelease];
response = (NSMutableDictionary *)[json JSONValue];
Then you'll have dictionary response. Now you can access it as
NSLog(#"%#",[response valueForKey:#"Data"] objectAtIndex:yourIndexValue] valueForKey:#"model"]);

Answer 4

Use SBJsonParser for parsing the response.
And "data" field is array of dictionary.
SBJsonParser *parser = [[SBJsonParser alloc] init];
// parsing the JSON
NSMutableDictionary *jsonDictionary = [parser objectWithString:response];
NSMutableArray *dataArray = [jsonDictionary objectForKey:#"data"];
So, u can use something like this:-
for(NSMutableDictionary *tempDictionary in dataArray)
{
NSLog(#"id is %#",[dataArray objectForKey: #"description"]);
}