使用RestKit找不到可映射的關係值keyPath

我無法使用RestKit將我的JSON映射到Core Data。 RK日誌說：使用RestKit找不到可映射的關係值keyPath

Did not find mappable relationship value keyPath.

我很明顯做錯了什麼。

登錄：

2012-11-20 15:40:36.525 eMobile[44849:12603] T restkit.object_mapping:RKObjectMappingOperation.m:342 Mapping attribute value keyPath 'OBJECTCLASS' to 'type' 
2012-11-20 15:40:36.525 eMobile[44849:12603] T restkit.object_mapping:RKObjectMappingOperation.m:359 Skipped mapping of attribute value from keyPath 'OBJECTCLASS to keyPath 'type' -- value is unchanged (SFAACCOUNT) 
2012-11-20 15:40:36.525 eMobile[44849:12603] T restkit.object_mapping:RKObjectMappingOperation.m:342 Mapping attribute value keyPath 'TIMESTAMP' to 'timestamp' 
2012-11-20 15:40:36.526 eMobile[44849:12603] T restkit.object_mapping:RKObjectMappingOperation.m:352 Mapped attribute value from keyPath 'TIMESTAMP' to 'timestamp'. Value: 2012-11-20T15:40:08Z 
2012-11-20 15:40:36.526 eMobile[44849:12603] D restkit.object_mapping:RKObjectMappingOperation.m:483 Did not find mappable relationship value keyPath 'VALUES' 
2012-11-20 15:40:36.526 eMobile[44849:12603] D restkit.object_mapping:RKObjectMappingOperation.m:662 Finished mapping operation successfully... 
2012-11-20 15:40:36.526 eMobile[44849:12603] T restkit.object_mapping:RKObjectMapper.m:293 Examining keyPath 'VALUES' for mappable content... 
2012-11-20 15:40:36.527 eMobile[44849:12603] D restkit.object_mapping:RKObjectMapper.m:303 Found unmappable value at keyPath: VALUES 
2012-11-20 15:40:36.527 eMobile[44849:12603] D restkit.object_mapping:RKObjectMapper.m:367 The following operations are in the queue: (
) 
2012-11-20 15:40:36.527 eMobile[44849:12603] D restkit.object_mapping:RKObjectMapper.m:382 Finished performing object mapping. Results: { 
    JSONDATA =  (
     "<EntityClass: 0x127da9e0> (entity: EntityClass; id: 0x127527d0 <x-coredata://E20EA003-1D5A-4B27-92DF-DFD8BE7074CB/EntityClass/p2> ; data: {\n timestamp = \"2012-11-20T15:40:08Z\";\n type = VCFUND;\n values = \"<relationship fault: 0x12703200 'values'>\";\n})", 
     "<EntityClass: 0x127da6b0> (entity: EntityClass; id: 0x12695dc0 <x-coredata://E20EA003-1D5A-4B27-92DF-DFD8BE7074CB/EntityClass/p1> ; data: {\n timestamp = \"2012-11-20T15:40:08Z\";\n type = SFAACCOUNT;\n values = \"<relationship fault: 0x11efb910 'values'>\";\n})" 
    ); 
} 
2012-11-20 15:40:36.530 eMobile[44849:11603] (
    "<EntityClass: 0x126b7400> (entity: EntityClass; id: 0x127527d0 <x-coredata://E20EA003-1D5A-4B27-92DF-DFD8BE7074CB/EntityClass/p2> ; data: <fault>)", 
    "<EntityClass: 0x127de030> (entity: EntityClass; id: 0x12695dc0 <x-coredata://E20EA003-1D5A-4B27-92DF-DFD8BE7074CB/EntityClass/p1> ; data: <fault>)" 
)

JSON樣本：

{ 
    "JSONDATA": [ 
     { 
      "OBJECTCLASS": "VCFUND", 
      "DESCRIPTION": { 
       "VALUES": [ 
        { 
         "DATA": [ 
          { 
           "NAME": "Fund 1", 
           "VALUE": "Buyout Fund 1" 
          }, 
          { 
           "NAME": "Fund 2", 
           "VALUE": "Buyout Fund 2" 
          }, 
          { 
           "NAME": "Fund 3", 
           "VALUE": "Buyout Fund 3" 
          } 
         ], 
         "IQID": "059386B4D26249358C68E978D3C10C84" 
        } 
       ] 
      }, 
      "TIMESTAMP": "2012-11-17T22:03:55Z" 
     }, 
     { 
      "OBJECTCLASS": "PROPERTIES", 
      "DESCRIPTION": { 
       "VALUES": [ 
        { 
         "DATA": [ 
          { 
           "NAME": "Property 1", 
           "VALUE": "Buyout Property 1" 
          }, 
          { 
           "NAME": "Property 2", 
           "VALUE": "Buyout Property 2" 
          }, 
          { 
           "NAME": "Property 3", 
           "VALUE": "Buyout Property 3" 
          } 
         ], 
         "IQID": "456789087654678909876589098" 
        } 
       ] 
      }, 
      "TIMESTAMP": "2012-11-17T22:03:55Z" 
     } 
    ] 
}

這裏是我的映射：

objectManager.objectStore = [RKManagedObjectStore objectStoreWithStoreFilename:@"AppCD.sqlite"]; 

RKManagedObjectMapping* entityClassItemValueMapping = [RKManagedObjectMapping mappingForClass:[EntityClassItemValue class] inManagedObjectStore:[[RKObjectManager sharedManager] objectStore]]; 
entityClassItemValueMapping.primaryKeyAttribute = @"name"; 
[entityClassItemValueMapping mapKeyPath:@"NAME" toAttribute:@"name"]; 
[entityClassItemValueMapping mapKeyPath:@"VALUE" toAttribute:@"value"]; 

RKManagedObjectMapping* entityClassItemMapping = [RKManagedObjectMapping mappingForClass:[EntityClassItem class] inManagedObjectStore:[[RKObjectManager sharedManager] objectStore]]; 
entityClassItemMapping.primaryKeyAttribute = @"iqid"; 
[entityClassItemMapping mapKeyPath:@"IQID" toAttribute:@"iqid"]; 

RKManagedObjectMapping* entityClassMapping = [RKManagedObjectMapping mappingForClass:[EntityClass class] inManagedObjectStore:[[RKObjectManager sharedManager] objectStore]]; 
entityClassMapping.primaryKeyAttribute = @"type"; 
[entityClassMapping mapKeyPath:@"OBJECTCLASS" toAttribute:@"type"]; 
[entityClassMapping mapKeyPath:@"TIMESTAMP" toAttribute:@"timestamp"]; 

[entityClassMapping mapKeyPath:@"VALUES" toRelationship:@"values" withMapping:entityClassItemMapping]; 
[entityClassItemMapping mapKeyPath:@"DATA" toRelationship:@"entityClassItemValues" withMapping:entityClassItemValueMapping]; 

[[RKObjectManager sharedManager].mappingProvider setMapping:entityClassMapping forKeyPath:@"JSONDATA"]; 
[[RKObjectManager sharedManager].mappingProvider setMapping:entityClassItemMapping forKeyPath:@"VALUES"]; 
[[RKObjectManager sharedManager].mappingProvider setMapping:entityClassItemValueMapping forKeyPath:@"DATA"]; 

[[objectManager client] setValue:[cookies objectForKey:@"Cookie"] forHTTPHeaderField:@"Cookie"]; 
NSDictionary *params = [[NSDictionary alloc] initWithObjectsAndKeys:query, @"Targ", @"", @"Query", @"F285E67F2C8CEC9837B68", @"$SESSION", @"3A7037FA806156C4", @"VERSION", nil]; 
[objectManager loadObjectsAtResourcePath:URL_DATA usingBlock:^(RKObjectLoader *loader) { 
    loader.method = RKRequestMethodPOST; 
    loader.params = params; 
    loader.mappingProvider = [RKObjectManager sharedManager].mappingProvider; 
    loader.onDidLoadObjects = loadBlock; 
    loader.onDidFailWithError = failBlock; 
}];

我CoreData型號有：

#import <Foundation/Foundation.h> 
#import <CoreData/CoreData.h> 

@class EntityClassItem; 

@interface EntityClass : NSManagedObject 

@property (nonatomic, retain) NSString * timestamp; 
@property (nonatomic, retain) NSString * type; 
@property (nonatomic, retain) NSSet *values; 
@end 

@interface EntityClass (CoreDataGeneratedAccessors) 

- (void)addValuesObject:(EntityClassItem *)value; 
- (void)removeValuesObject:(EntityClassItem *)value; 
- (void)addValues:(NSSet *)values; 
- (void)removeValues:(NSSet *)values; 

#import <Foundation/Foundation.h> 
#import <CoreData/CoreData.h> 

@class EntityClassItem; 

@interface EntityClass : NSManagedObject 

@property (nonatomic, retain) NSString * timestamp; 
@property (nonatomic, retain) NSString * type; 
@property (nonatomic, retain) NSSet *values; 
@end 

@interface EntityClass (CoreDataGeneratedAccessors) 

- (void)addValuesObject:(EntityClassItem *)value; 
- (void)removeValuesObject:(EntityClassItem *)value; 
- (void)addValues:(NSSet *)values; 
- (void)removeValues:(NSSet *)values; 

#import <Foundation/Foundation.h> 
#import <CoreData/CoreData.h> 

@class EntityClassItem; 

@interface EntityClassItemValue : NSManagedObject 

@property (nonatomic, retain) NSString * name; 
@property (nonatomic, retain) NSString * value; 
@property (nonatomic, retain) EntityClassItem *entityClassItem;

來源

2012-11-20 Shocks

我從來沒有使用'RestKit'，但看起來有點奇怪，你有'mapKeyPath：'和'setMapping：'調用'VALUES'。我沒有受過教育的2美分。 –

經過大量的調試和重新閱讀文檔後，我想到了它。這是一個缺乏瞭解，對我而言圍：

mapKeyPath:@"foo" toRelationship:@"bar" withMapping:fooBar];

由於文檔清晰狀態，mapKeyPath必須要在除了在JSON有效負載的節點映射到該對象的兩個屬性相匹配。我的有效載荷的情況不匹配，所以它失敗了。

來源

2012-11-21 15:53:50 Shocks

使用RestKit找不到可映射的關係值keyPath

回答

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