iPhone: variable type returned by yajl
- by Luc
Hello,
I'm quite new to iphone programming and I want to do the following stuff:
get data from a JSON REST web server
parse the received data using YAJL
Draw a graph with those data using core-plot
So, 1th item is fine, I use ASIHttpRequest which runs as espected
3rd is almost fine (I still have to learn how to tune core-plot).
The problem I have is regarding 2nd item.
I use YAJL as it seems to be the faster parser, so why not give it a try :)
Here is the part of code that gets the data from the server and parse them:
// Get server data
response_data = [request responseData];
// Parse JSON received
self.arrayFromData = [response_data yajl_JSON];
NSLog(@"Array from data: %@", self.arrayFromData);
The parsing works quite well in fact, the NSLog output is something like:
2010-06-14 17:56:35.375 TEST_APP[3733:207] Array from data :
{
data = (
{
val = 1317;
date = "2010-06-10T15:50:01+02:00";
},
{
val = 1573;
date = "2010-06-10T16:20:01+02:00";
},
........
{
val = 840;
date = "2010-06-11T14:50:01+02:00";
},
{
val = 1265;
date = "2010-06-11T15:20:01+02:00";
}
);
from = "2010-06-10T15:50:01+02:00";
to = "2010-06-11T15:20:01+02:00";
max = "2590";
}
According to th yajl-objc explanations http://github.com/gabriel/yajl-objc, the parsing returns a NSArray...
The thing is... I do not know how to get all the values from it as for me it looks more like a NSDictionary than a NSArray...
Could you please help ?
Thanks a lot,
Luc
edit1: it happens that this object is actually a NSCFDictionary (!), I am still not able to get value from it, when I try the objectFromKey method (that should work on a Dictionary, no ?) it fails.
