restkit propertyname not showing - ios

Question

I'm having problems when posting to my server. Every value is being parsed expect the property-names of my array aren't.
My server is expecting something like this:
{
"location": 2,
"_id": "517808546b496658c10209",
"products": [
{
"amount": 3,
"total": 6.6,
"name": "Coke",
"price": 2.2
},{
"amount": 1,
"total": 4.0,
"name": "Water",
"price": 2
}
]
}
but my client is sending this:
{
"location": 2,
"_id": "517808546b496658c10209",
"products": [
3,
6.6,
"Coke",
2.2,
1,
4.0,
"Water",
2
]
}
Product:
#property (nonatomic) NSNumber *_id;
#property (nonatomic, strong) NSString *name;
#property (nonatomic, strong) NSString *detail;
#property (nonatomic, assign) float price;
#property (nonatomic, strong) Category *category;
#property (nonatomic, assign) int amount;
#property (nonatomic, assign) float total;
my code:
RKObjectMapping *productMapping = [RKObjectMapping requestMapping];
[productMapping addAttributeMappingsFromDictionary:#{#"productId":#"_id",#"amount":#":amount",#"total":#"total",#"price":#"price",#"name":#"name"}];
RKObjectMapping *horecaMapping = [RKObjectMapping requestMapping];
[horecaMapping addAttributeMappingsFromDictionary:#{ #"Id": #"_Id",#"deliverySpotId":#"location"}];
[horecaMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:#"self.getBasketSet" toKeyPath:#"products" withMapping:productMapping]];
RKRequestDescriptor *requestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:horecaMapping objectClass:[Horeca class] rootKeyPath:nil];
[RKMIMETypeSerialization registerClass:[RKNSJSONSerialization class] forMIMEType:#"text/plain"];
RKObjectManager *manager = [RKObjectManager managerWithBaseURL:baseURL];
[manager addRequestDescriptor:requestDescriptor];
[manager postObject:sharedHoreca path:#"/orders" parameters:nil success:nil failure:nil];
--update 1--
I also tried to make an NSSET of my array but this still doesn't help me.
(nsarray to nsset restkit)

Answer 1

The self.getBasketSet key path is giving me pause -- what is that returning? If your sharedHoreca object returns an NSArray of objects responding to the key paths specified then it should do what you are expecting...