Using Mantle with Sickbeard API - objective-c

Question

I'm trying to map the responses from the Sickbeard API to my objects with Mantle, but I can't figure out how, since the response is key-value based using TVDB id's as key, like this:
"data": {
"71663": {
"air_by_date": 0,
"cache": {
"banner": 1,
"poster": 1
},
"language": "en",
"network": "FOX",
"next_ep_airdate": "2014-09-28",
"paused": 0,
"quality": "Any",
"show_name": "The Simpsons",
"status": "Continuing",
"tvdbid": 71663,
"tvrage_id": 6190,
"tvrage_name": "The Simpsons"
},
"72227": {
"air_by_date": 0,
"cache": {
"banner": 1,
"poster": 1
},
"language": "en",
"network": "CBS",
"next_ep_airdate": "",
"paused": 0,
"quality": "Any",
"show_name": "Two and a Half Men",
"status": "Continuing",
"tvdbid": 72227,
"tvrage_id": 6454,
"tvrage_name": "Two and a Half Men"
}
}
Since the data object does not simply contain an array of objects like this [{"key": value},{"key": value}] but instead objects keyed by some unique id, I'm not sure how I should map it into my SBShow classes, defined like:
#import <Foundation/Foundation.h>
#import <Mantle.h>
#interface SBShow : MTLModel <MTLJSONSerializing>
#property (nonatomic, strong) NSNumber *tvdbid;
#property (nonatomic, strong) NSString *showName;
#property (nonatomic, strong) NSString *network;
#property (nonatomic, strong) NSString *status;
#end
#implementation SBShow
+ (NSDictionary *)JSONKeyPathsByPropertyKey {
return #{#"showName": #"show_name"};
}
+ (NSValueTransformer *)dateJSONTransformer {
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:#"yyyy-MM-dd"];
return [MTLValueTransformer reversibleTransformerWithForwardBlock:^(NSString *str) {
return [formatter dateFromString:str];
} reverseBlock:^(NSDate *date) {
return [formatter stringFromDate:date];
}];
}
#end
Any help would be greatly appreciated.

Answer 1

You can do it like this, by adding the key to the rest of the 'JSON dictionary':
NSMutableArray *shows = [NSMutableArray array];
// data is an NSDictionary, representing the 'data' key in the JSON
[data enumerateKeysAndObjectsUsingBlock:^(NSString *tvdbID, NSDictionary *showData, BOOL *stop) {
NSMutableDictionary *modelDictionary = [showData mutableCopy];
modelDictionary[#"tvdbid"] = tvdbID;
NSError *error = nil;
SBShow *show = [MTLJSONAdapter modelOfClass:SBShow.class
fromJSONDictionary:modelDictionary
error:&error];
[shows addObject:show];
}];
NSLog(#"Show models are %#", shows);
You can write your own transformer to encapsulate this logic and apply it to the data key if appropriate.