RKMappingResult for multiple mapping - objective-c

Question

I'm sending a request about an user. There are several possibilities. I'm thinking about sending a JSON like that:
"type1": {
"id": 34,
"email": "email#test.com",
"firstname": "Juan",
"lastname": "Ito",
"gender": 2,
"created_at": "2012-09-21T18:53:02Z",
"updated_at": "2012-12-27T16:22:47Z"
}
"type2": {
"id": 34,
"email": "email#test.com",
"firstname": "Juan",
"lastname": "Ito",
"gender": 2,
"created_at": "2012-09-21T18:53:02Z",
"updated_at": "2012-12-27T16:22:47Z"
}
"type3": {
"id": 34,
"email": "email#test.com",
"firstname": "Juan",
"lastname": "Ito",
"gender": 2,
"created_at": "2012-09-21T18:53:02Z",
"updated_at": "2012-12-27T16:22:47Z"
}
Then I was thinking about a multiple RKResponseDescriptor but I don't know how to interpret the RKMappingResult. Do I have a way to refer an object to the keyPath ? Here I'm using 3 times the same RKEntityMapping but with different keyPaths.
Finally I don't even know if it's possible.
Edit:
Maybe this kind of JSON is better and easier to understand/map.
"type" : "type1",
"user": {
"id": 34,
"email": "email#test.com",
"firstname": "Juan",
"lastname": "Ito",
"gender": 2,
"created_at": "2012-09-21T18:53:02Z",
"updated_at": "2012-12-27T16:22:47Z"
}
Thank you for your help.

Answer 1

There isn't enough information to suggest about JSON structure. The arbitrary keys isn't very nice, but it is quite common. Generally a 'container' object in the JSON is nicer.
That said, RestKit can generally handle both. Check out addAttributeMappingFromKeyOfRepresentationToAttribute: and addAttributeMappingToKeyOfRepresentationFromAttribute: on RKObjectMapping for examples of how to handle that kind of JSON.

Answer 2

If your question is related to how to map the response JSON using Restkit mapping then this is better way to design your JSON.
{"userProfile":[
{
"id": 34,
"email": "email#test.com",
"firstname": "Juan",
"lastname": "Ito",
"gender": 2,
"created_at": "2012-09-21T18:53:02Z",
"updated_at": "2012-12-27T16:22:47Z"
},
{
"id": 34,
"email": "email#test.com",
"firstname": "Juan",
"lastname": "Ito",
"gender": 2,
"created_at": "2012-09-21T18:53:02Z",
"updated_at": "2012-12-27T16:22:47Z"
},
{
"id": 34,
"email": "email#test.com",
"firstname": "Juan",
"lastname": "Ito",
"gender": 2,
"created_at": "2012-09-21T18:53:02Z",
"updated_at": "2012-12-27T16:22:47Z"
}
]}
Modal classes:
userProfile.h
#property(nonatomic,strong) NSMutableArray *userInfo;
userInfo.h
#property(assign) int id;
#property(nonatomic,strong) NSString *email;
.......
Mapping can be done with AttributeMapping and RelationshipMapping

Answer 3

I finally mapped the type like this:
RKObjectMapping *typeMapping = [RKObjectMapping requestMapping];
[typeMapping addAttributeMappingsFromDictionary:#{#"type":#"type"}];
With this descriptor:
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:typeMapping
method:RKRequestMethodAny
pathPattern:nil
keyPath:nil
statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
Basically to catch this dictionary, basically I did this:
NSString *type = [((NSDictionary *)[[mappingResult array] objectAtIndex:0]) objectForKey:#"type"];
This solve my problem because just after I'm selecting different actions according to the value of type.
I let #Wain tell us if this method is acceptable or not.