I'm using JSON-Framework in my project successfully to decode JSON send from a server.
Now I need to do it the other way around and I'm facing problems as the data to be sent is a NSMutableArray fetched from CoreData.
When using
NSString* jsonString = [menuItems JSONRepresentation]
I get the message "JSON serialisation not supported for MenuItems".
Do I need to convert the NSMutableArray to some other format so the JSON-Framework can serialize it?
Thanks for any help,
Miguel
Allow me to suggest a somewhat nicer solution:
In your MenuItems class, implement the -proxyForJson method and you should then be able to call the -JSONRepresentation method directly on the menuItems array.
@interface MenuItems(SBJson)
-(id)proxyForJson {
return [NSDictionary dictionaryWithObjectsAndKeys:
self.id,@"id",
[self.modified description],@"modified",
nil];
}
@end
Hope this helps!
I finally solved it, but I'm not sure if it's the best/most elegant way to do it.
NSMutableArray* items = [[NSMutableArray alloc] init];
for (MenuItems* item in menuItems) {
[items addObject:[NSArray arrayWithObjects:item.id,[item.modified description],nil]];
}
NSString *post = [NSString stringWithFormat:@"currentData=%@",
[items JSONRepresentation]];
Explanation:
I first thought that the problem was the NSMutableArray, but then realized that it was the contents of it. So I just get the information I need out of it and saved it as NSArray which JSON-Framework does accept :-)
This is an example of sending dictionary and array to server.which worked for me 1000000% .
SBJSON *jparser = [[SBJSON new] autorelease];
NSString *ArrayjsonItems = [jparser stringWithObject:self.UrMergedArray];
NSString *DicjsonItems = [jparser stringWithObject:self.UrMergedDic];
NSLog(@"array Items :%@",self.UrMergedArray);
NSLog(@"dic Items :%@",self.UrMergedDic);
NSString *postString =[NSString stringWithFormat:@"Arrayitems=%@&Dicitems=%@",ArrayjsonItems,DicjsonItems];
NSLog(@"it is going to post : %@ \n\n",postString);
NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:snapURL];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
NSURLConnection *connection=[[NSURLConnection alloc]
initWithRequest:request
delegate:self];
if (connection) {
self.receivedData = [[NSMutableData alloc]init];
}
