passing base64 image data to ios app for consumption using RESTkit - ruby-on-rails

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.