CODEWITHSUNDEEP
iphonejsoniosipadtouchjson
Adelino
Adelino

Reputation: 3110

Problems serializing a dictionary with TouchJson

i'm developing a small app for the ipad and i'm trying to serialize a dictionary to NSData to save in the disk. I'm using with framework TouchJson. And example of my example structure:

{
line =     {
    78986928 =         (
        "NSPoint: {442, 266}",
        (...)
        "NSPoint: {370, 634}"
    );
};

}

The structure of my dictionary is: an dictionary with dictionaries inside. This dictionaries have a string (ID) and an NSMutableArray with an NSValue.

The line of code is that i'm using is:

NSData *jsonData = [[CJSONSerializer serializer] serializeObject:templates error:&error];

The error that the variable error give me is:

2011-03-23 10:12:12.957 GestureFramework[286:207] Error Domain=TODO_DOMAIN Code=-1 "Could not serialize object '{
line =     {
    78986928 =         (
        "NSPoint: {442, 266}",
        (...)
        "NSPoint: {370, 634}"
    );
};
}'" UserInfo=0x4e27aa0 {NSLocalizedDescription=Could not serialize object '{
    line =     {
        78986928 =         (
            "NSPoint: {442, 266}",
            (...)
            "NSPoint: {370, 634}"
        );
    };
}'}

Thnx in advance

Upvotes: 2

Views: 1092

Answers (1)

jessecurry
jessecurry

Reputation: 22116

TouchJSON supports serializing the following types:

  • NSNull
  • NSNumber
  • NSString
  • NSArray
  • NSDictionary
  • NSData

If you'd like to serialize another type you'll need to implement -(NSData*)JSONDataRepresentation (either on a subclass or category).

Here's an example that I used for NSDate:

@interface NSDate (JSONDataRepresentation)
- (NSData*)JSONDataRepresentation; 
@end

.

@implementation NSDate (JSONDataRepresentation)
- (NSData*)JSONDataRepresentation 
{
    return [@"\"didn't want to waste the space to do the real conversion\"" dataUsingEncoding: NSUTF8StringEncoding]; 
}
@end

Upvotes: 4

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