Mapping object from sibling node in json in RestKit - ios

Question

JSON
{
"entity": {
"id": 1,
"name": "name"
},
"settings": {
"key": "value"
}
}
Entity Model
Attributes: id, name
Relationship: settings(one to one)
Settings Model
Attributes: key
Relationship: entity(reverse relationship, one to one)
EntityMapping
RKEntityMapping *mapping = [RKEntityMapping mappingForEntityForName:NSStringFromClass([self class]) inManagedObjectStore:[RKManagedObjectStore defaultStore]];
mapping.persistentStore = [RKManagedObjectStore defaultStore].persistentStoreCoordinator.persistentStores.firstObject;
mapping.identificationAttributes = #[#"id"];
[mapping addAttributeMappingsFromDictionary:#{
#"id" : #"id",
#"name" : #"name"
}];
Had settings been inside entity in json response, I would add this
[mapping addPropertyMapping:
[RKRelationshipMapping relationshipMappingFromKeyPath:#"settings"
toKeyPath:#"settings" withMapping:[Settings map]]
];
But my response id different than this, so how should I map correctly?

Answer 1

Both entity and settings are in a container dictionary, so you can change your response descriptor to not drill down so far and then use key paths to drill into the entity part and have direct access to the settings part:
[mapping addAttributeMappingsFromDictionary:#{
#"entity.id" : #"id",
#"entity.name" : #"name"
}];
[mapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:#"settings" toKeyPath:#"settings" withMapping:[Settings map]]];