RestKit RKObjectMapping入れ子json

Question

どのようにして、入れ子になったjsonをRestKit RKObjectMappingで下にマッピングできますか？私は "データ"をマップする必要があります。以下の私の現在のコードは（null）を返す - ありがとう！

{ 

    "sucess": true, 
    "error": { 
     "code": "", 
     "message": "" 
    }, 
    "data": [ 
     { 
      "id": 1, 
      "name": "Salad", 
      "description": "Salad Desc", 
      "category_id": 1 
     }, 
     { 
      "id": 2, 
      "name": "Soup", 
      "description": "Soup Desc", 
      "category_id": 1 
     }, 
     { 
      "id": 3, 
      "name": "Wrap", 
      "description": "Wrap Desc", 
      "category_id": 1 
     }, 
     { 
      "id": 4, 
      "name": "Appetizers", 
      "description": "Appetizers Desc", 
      "category_id": 1 
     } 
    ] 

} 

クラス

@interface Subcategory : NSObject  
    @property (nonatomic, retain) NSNumber *subcategoryID; 
    @property (nonatomic, retain) NSNumber *categoryID; 
    @property (nonatomic, retain) NSString *name; 
    @property (nonatomic, retain) NSString *description; 
    @property (nonatomic, retain) NSString *thumbnail; 
    @property (nonatomic, retain) NSArray *data; 

のViewController

RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[Subcategory class]]; 

RKObjectMapping* dataMapping = [RKObjectMapping mappingForClass:[Subcategory class]]; 
[dataMapping mapKeyPath:@"id" toAttribute:@"subcategoryID"]; 
[dataMapping mapKeyPath:@"category_id" toAttribute:@"categoryID"]; 
[dataMapping mapAttributes:@"name", @"description", nil]; 

[mapping mapKeyPath:@"data" toRelationship:@"data" withMapping:dataMapping]; 

[[RKObjectManager sharedManager] loadObjectsAtResourcePath:[NSString stringWith 

Answer 1

あなたはrootKeyPathを逃すとまたプロバイダにマッピングを設定されています

RKObjectMapping* mapping = [RKObjectMapping mappingForClass:[Subcategory class]];  
RKObjectMapping* dataMapping = [RKObjectMapping mappingForClass:[Subcategory class]]; 
[dataMapping mapKeyPath:@"id" toAttribute:@"subcategoryID"]; 
[dataMapping mapKeyPath:@"category_id" toAttribute:@"categoryID"]; 
[dataMapping mapAttributes:@"name", @"description", nil]; 
dataMapping.rootKeyPath = @"data"; //this is what you were missing  
//get your mapping provider (i'm not sure if you already have on declared) 
[mappingProvider setObjectMapping:dataMapping forResourcePathPattern:@"/somepath/toservice/"]; 
[[RKObjectManager sharedManager] loadObjectsAtResourcePath:@"/somepath/toservice/"]; 

はここにあなたに答えるための詳細情報です質問について他の要素（例えば「エラー」）になって：他人の利益のために

- (void)objectLoader:(RKObjectLoader *)objectLoader didFailWithError:(NSError *)error { 
    NSError *parseError = nil; 
    id response = [objectLoader.response parsedBody:&parseError]; 
    DLog(@"response %@", response);  
    if (!parseError) { 
     NSString *errorMessage = [[response valueForKey:@"error"] valueForKey:@"message"];  
     //do something with it  
    } 
}