RestKit 请求映射 - 发布对象数组

Question

我正在尝试在我的响应正文中序列化 SyncRewardDataRequestModel。 "an_id" 可以很好地序列化。但是，NSArray 中的 SyncRewardDataInputModel 对象总是序列化为一个空的 NSArray。我已经确认我在我的 NSArray 中传递了一个正确的值 - 有人看到我的映射有什么问题吗？

类：

@interface SyncRewardDataInputModel : NSObject
@property (nonatomic,copy) NSNumber *test_id;
@end

@interface SyncRewardDataRequestModel : NSObject
@property (nonatomic,strong) NSArray *syncRewardDataInputs;
@property (nonatomic,copy) NSNumber *an_id;
@end

以下是我的响应描述符：

     //Populate mapping
 RKObjectMapping *requestMapping = [RKObjectMapping requestMapping]; // objectClass == NSMutableDictionary
[requestMapping addAttributeMappingsFromDictionary:@{@"an_id": @"an_id"}];


RKObjectMapping *syncRewardDataInputsMapping = [RKObjectMapping mappingForClass:[SyncRewardDataInputModel class]];
[syncRewardDataInputsMapping addAttributeMappingsFromDictionary:@{@"test_id":   @"test_id"}];

//Combine
RKRelationshipMapping *arrayRelation = [RKRelationshipMapping relationshipMappingFromKeyPath:@"syncRewardDataInputs" toKeyPath:@"downloadCardResponseDTOs" withMapping:syncRewardDataInputsMapping];

[requestMapping addPropertyMapping:arrayRelation];

//Put it in a request
 RKRequestDescriptor *requestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:requestMapping objectClass:[SyncRewardDataRequestModel class] rootKeyPath:nil method:RKRequestMethodAny];

return requestDescriptor;

Answer 1

这一行：

RKObjectMapping *syncRewardDataInputsMapping = [RKObjectMapping mappingForClass:[SyncRewardDataInputModel class]];

应该是：

RKObjectMapping *syncRewardDataInputsMapping = [RKObjectMapping requestMapping];

因为对于请求，您总是试图映射到 NSMutableDictionary，以便可以从中生成 JSON 进行传输。

您通常会有一个用于接收数据的映射，链接到响应描述符，您可以在其上使用inverseMapping 来生成用于您的请求描述符的映射。