gistify446913.m

    RKObjectManager* objectManager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:@"https://api.foursquare.com/"]];
    objectManager.managedObjectStore = [self managedObjectStore];
    
    RKEntityMapping* listMapping = [RKEntityMapping mappingForEntityForName:[FOFSList entityName] inManagedObjectStore:objectManager.managedObjectStore];
    [listMapping addAttributeMappingsFromDictionary:@{
                                                         @"id": @"listID",
                                                         @"title": @"name",
                                                         @"description": @"desc",
                                                         @"user": @"user",
                                                         @"following": @"following",
//                                                         @"editable": @"editable",
                                                         @"collaborative": @"collaborative",
                                                         @"canonicalUrl": @"canonicalUrl",
                                                         @"venueCount": @"venueCount",
                                                         @"visitedCount": @"visitedCount"
                                                         }];
    
    RKResponseDescriptor * responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:listMapping
                                                                                             method:RKRequestMethodGET pathPattern:nil keyPath:@"response.lists.groups" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
    [objectManager addResponseDescriptor:responseDescriptor];
    listMapping.identificationAttributes = @[ @"listID" ];