Question

please help so here is the problem i got a rails app that sends a json image data base64. The json sends but when i try to access the data value in ios app it comes back as null. Here is my rails code,code

{
"profile_pic": "<%= Base64.encode64(File.read('/Users/rui_y/connect_Me2/public'+     
@user.avatar_photo_url(:thumb)).gsub("\n", '')) %>",
}

the json comes back as

[{"profile_pic": "/9j/4AAQSkZJRgABAQEASABIAAD/2wBDAAUDBAQEAwUEBAQFBQUGBwwIBwcH......
  ....... many more lines etc etc...................................................
+p/Ob9Xrf6D8po/hOhI4U5SSm4Es8vUE/riYmJj2B0iefbkz/2Q==" }]

the Restkit is mapped like this

 [userMapping mapKeyPath:@"profile_pic" toAttribute:@"profilePic"];
 NSLog(@"people id %@",[[objects objectAtIndex:0]profilePic ]);
//and it comes back as null
2012-02-09 20:08:48.073 ConnecTest[78232:207] profile_pic (null)

all the other values when i nslog is accessable so im wondering how to map this data.

Answer 1

You can map this as you do for all strings.

I take this in my code, but I map a list of key/value object :

Mapping :

listMapping = [RKObjectMapping mappingForClass:[VOKeyValue class]];
[listMapping mapKeyPath:@"value" toAttribute:@"value"];
[listMapping mapKeyPath:@"key" toAttribute:@"key"];
[[RKObjectManager sharedManager].mappingProvider setMapping:listMapping forKeyPath:@"list"];

Value Object :

@interface VOKeyValue : NSObject
{
  NSString * key;
  NSString * value;
}

@property (nonatomic, retain) NSString * key;
@property (nonatomic, retain) NSString * value;

@end

Request :

[[RKObjectManager sharedManager] loadObjectsAtResourcePath:@"yourResourceURL..." delegate:self];

In my CallBack function :

VOKeyValue*img=[objects objectAtIndex:0];
if (![img.key isEqualToString:@"image"]) {
  img=[objects objectAtIndex:1];
}

Finally I can map this Json :

{"list":[{"key":"image","value":"/9j/4AATSkZJRgABAgIAAAAAAAAAAAD/wAARCADwAUADASEAAhEBAxEB/....YFJCPAP/ZAAA="},{"key":"other","value":"xxxx..."}]}

I hope my exemple can help you.