Question

这是我对API的回应：

{"is_favorited":1}

我想通过RestKit映射它，但我无法让它工作。我在AppDelegate.m中有这个：

RKObjectMapping *isFavoriteMapping = [RKObjectMapping mappingForClass:[IsFavorite class]];
[isFavoriteMapping addAttributeMappingsFromDictionary:@{
                                                         @"is_favorited" : @"Is_favorited",
                                                         }];

RKResponseDescriptor *isFavoriteResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:isFavoriteMapping
                                                                                                  method:RKRequestMethodAny
                                                                                             pathPattern:@"/api/isPointFavorited/:sid"
                                                                                                 keyPath:nil
                                                                                             statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

[manager addResponseDescriptor:isFavoriteResponseDescriptor];

路径没问题。我有地址令牌。我叫它：

    RKObjectManager *manager = [RKObjectManager sharedManager];
    [manager getObjectsAtPath: [NSString stringWithFormat:@"/api/isPointFavorited/%@", sid]
                   parameters:@{
                                @"pid":[NSString stringWithFormat:@"%@", actualPlace.Id]
                                }
                      success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult)
     {
      ...
      }
           failure:^(RKObjectRequestOperation *operation, NSError *error)
              {
              ...
              }];

我在应用程序中使用RestKit几次，也使用sid（登录令牌）。所以地址或方法调用没有问题。问题必须在映射中，但我不知道该怎么做。我试图将keyPath从nil更改为@“is_favorited”，但它没有帮助。

我的Is_favorite.h：

@interface IsFavorite : NSObject

@property(nonatomic) NSNumber *Is_favorited;

@end

RestKit错误：

Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No mappable object representations were found at the key paths searched." UserInfo=0x1849cbc0 {DetailedErrors=(
), NSLocalizedFailureReason=The mapping operation was unable to find any nested object representations at the key paths searched: events, results
The representation inputted to the mapper was found to contain nested object representations at the following key paths: is_favorited
This likely indicates that you have misconfigured the key paths for your mappings., NSLocalizedDescription=No mappable object representations were found at the key paths searched., keyPath=null}

修改 - AppDelegate中的更改但仍无效：

RKObjectMapping *isFavoriteMapping = [RKObjectMapping mappingForClass:[IsFavorite class]];
[isFavoriteMapping addPropertyMapping:[RKAttributeMapping attributeMappingFromKeyPath:nil toKeyPath:@"Is_favorited"]];

RKResponseDescriptor *isFavoriteResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:isFavoriteMapping
                                                                                                  method:RKRequestMethodAny
                                                                                             pathPattern:@"/api/isPointFavorited/:sid"
                                                                                                 keyPath:@"is_favorited"
                                                                                             statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

[manager addResponseDescriptor:isFavoriteResponseDescriptor];

Answer 1

删除addAttributeMappingsFromDictionary:的使用情况，并更改为：

[isFavoriteMapping addPropertyMapping:[RKAttributeMapping attributeMappingFromKeyPath:nil toKeyPath:@"Is_favorited"]];

然后将响应描述符上的keyPath更改为@"is_favorited"。

这称为nil密钥路径映射（因为映射中的nil源键路径）。

iOS RestKit - 映射结果，只有一个属性

1 个答案: