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我正在尝试发布一个 object1（托管对象）并接收另一个 object2（非托管对象）。我收到以下错误： W restkit.object_mapping:RKMapperOperation.m:98 Adding mapping error: Expected an object mapping for class of type '<object1 class>', provider returned one for '<object2 class>'

我知道为什么会发生此错误，但不知道解决方案。

这是我的代码，到目前为止我的尝试方式：
请求映射：

RKObjectMapping *objectMapping = [RKObjectMapping requestMapping];
[objectMapping addAttributeMappingsFromArray:@[@"prop1", @"prop2", @"prop3"]];
RKRequestDescriptor *requestDescriptor = [RKRequestDescriptor requestDescriptorWithMapping:objectMapping objectClass:[<object1 class> class] rootKeyPath:nil];
[[RKObjectManager sharedManager] addRequestDescriptor:requestDescriptor];

响应映射：

RKObjectMapping *objectMapping = [RKObjectMapping mappingForClass:[<object2 class> class]];
[objectMapping addAttributeMappingsFromArray:@[@"prop4", @"prop5"]];
responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:objectMapping pathPattern:@"myPattern" keyPath:@"" statusCodes:statusCodes];
[[RKObjectManager sharedManager] addResponseDescriptor:responseDescriptor];

路由： 

[[RKObjectManager sharedManager].router.routeSet addRoute:[RKRoute routeWithClass:[<object1 class> class] pathPattern:@"myPattern" method:RKRequestMethodPOST]];

来电： 

[[RKObjectManager sharedManager] postObject:object1 path:nil parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
    // Success
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
    // Fail
}];
4

2 回答 2

2

postObject:如果接收到的对象与发送的对象不同，则不能使用。相反，您需要自己生成请求操作 ( RKObjectRequestOperation)，然后您可以指定传出数据的映射并使用不同的映射处理传入数据。

查看使用RKObjectManager requestWithObject:来生成请求和RKObjectRequestOperation initWithRequest:处理响应。

于 2013-06-04T15:43:52.187 回答
1

我可以确认@Wain 的答案是正确的（我要感谢他解决了一个让我损失 3 天的问题）。如果你想对请求和响应使用不同的对象，你应该使用类似的东西来执行你的 POST 请求：

 NSURL *url = [NSURL URLWithString:_baseURL];
    RKObjectManager *restManager = [RKObjectManager managerWithBaseURL:url];   

    NSMutableURLRequest * request = [restManager requestWithObject:_objectToPost method:RKRequestMethodPOST path:_pathPattern parameters:_parameters];
                RKObjectRequestOperation *operation = [[RKObjectRequestOperation alloc] initWithRequest:request responseDescriptors:@[responseDescriptor]];
                [operation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {

                    // process the response
                } failure:^(RKObjectRequestOperation *operation, NSError *error) {

                    // process the error
                }];
    [restManager enqueueObjectRequestOperation:operation];
于 2014-09-19T15:18:44.673 回答