Ios 找不到RestKit的可映射关系值keyPath

我无法使用RestKit将JSON映射到核心数据。他说：

Did not find mappable relationship value keyPath.

我显然做错了什么

日志：

以下是我的映射：

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;
}];

我的CoreData模型是：

#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;

#导入
#进口
@类EntityClassItem；
@接口实体类：NSManagedObject
@属性（非原子，保留）NSString*时间戳；
@属性（非原子，保留）NSString*类型；
@属性（非原子，保留）NSSet*值；
@结束
@接口EntityClass（CoreDataGeneratedAccessor）
-（void）addValuesObject:（EntityClassItem*）值；
-（void）移除ValuesObject:（EntityClassItem*）值；
-（void）addValues：（NSSet*）值；
-（void）移除值：（NSSet*）值；
#进口
#进口
@类EntityClassItem；
@接口实体类：NSManagedObject
@属性（非原子，保留）NSString*时间戳；
@属性（非原子，保留）NSString*类型；
@属性（非原子，保留）NSSet*值；
@结束
@接口EntityClass（CoreDataGeneratedAccessor）
-（void）addValuesObject:（EntityClassItem*）值；
-（void）移除ValuesObject:（EntityClassItem*）值；
-（void）addValues：（NSSet*）值；
-（void）移除值：（NSSet*）值；
#进口
#进口
@类EntityClassItem；
@接口EntityClassItemValue:NSManagedObject
@属性（非原子，保留）NSString*名称；
@属性（非原子，保留）NSString*值；
@属性（非原子，保留）EntityClassItem*EntityClassItem；

我在对文档进行了大量调试和重读后，终于找到了答案。我对以下方面缺乏了解：

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

---

正如文档明确指出的那样，除了JSON负载中的节点外，mapKeyPath还必须同时匹配要映射到的对象的属性。我的有效负载案例不匹配，因此失败。

我从未使用过

RestKit

，但奇怪的是，您同时拥有

mapKeyPath:

和

setMapping:

调用

值。我那没受过教育的孩子2美分。
#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;

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