使用 RKObjectManager 而不是 RKRequestOperation 获取方法 - RestKit

Question

以下是使用 RKObjectRequestOperation 获取方法的函数，如何使用 RKObjectManager 编写相同的方法

 NSString *hostName = [NSString stringWithFormat:@"%@",[self getHostName]];

NSString *urls = [[NSString alloc] initWithFormat:@"%@/randomcollection/%@/0/%li",hostName,profileId,(long)noOfItems];


RKObjectMapping *responseMapping = [MappingProvider collectionMapping ];


RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:responseMapping method:RKRequestMethodAny pathPattern:nil keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

    NSURL *URL = [NSURL URLWithString:urls];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL cachePolicy:NSURLCacheStorageAllowedInMemoryOnly timeoutInterval:90.0f];
[request setValue:[GameManager sharedInstance].authenticatedUser.appTokenId forHTTPHeaderField:@"tokenId"];

RKObjectRequestOperation *objectRequestOperation = [[RKObjectRequestOperation alloc] initWithRequest:request responseDescriptors:@[ responseDescriptor ]];


[objectRequestOperation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
    if (success) {
        RKLogInfo(@"Load collection: %@", mappingResult.array);
    }
} failure:^(RKObjectRequestOperation *operation, NSError *error) {

    if (failure) {
        failure(operation, error);
    }

}];

[objectRequestOperation start];

编辑：这是我尝试过的，它给了我 * 断言失败的错误 -[RKRouter URLWithRoute:object:]

      NSString *hostName = [NSString stringWithFormat:@"%@",[self getHostName]];  
   NSString* urls = [[NSString alloc]      initWithFormat:@"%@/userprofile/selectbyid/%@",hostName,profileId];

 RKObjectManager *manager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:urls]];
    [manager.HTTPClient setDefaultHeader:@"tokenId" value:[GameManager sharedInstance].authenticatedUser.appTokenId];

RKObjectMapping *responseMapping = [MappingProvider userProfileRespMapping ];


    RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:responseMapping method:RKRequestMethodGET pathPattern:nil keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

    [manager addResponseDescriptor:responseDescriptor];


    UserProfile * modelObject = [[UserProfile alloc] init];
    [modelObject setProfileId:profileId];

    [[RKObjectManager sharedManager] getObject:modelObject
                                          path:nil
                                    parameters:nil
                                       success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
                                                  if (success) {
                                                       RKLogInfo(@"Load collection of Userprofiles: %@", mappingResult.array);
                                                       NSLog(@"Mapping Results %@",[mappingResult.array firstObject]);
                                                    UserProfile *currentUserProfile = (UserProfile *)[mappingResult.array firstObject];
                                                       success(currentUserProfile);
                                                   }
                                       }
                                       failure:^(RKObjectRequestOperation *operation, NSError *error) {

                                        if (failure) {
                                                       RKLogError(@"Operation failed with error: %@", error);
                                                       failure(operation, error);
                                                   }
                                       }];

Answer 1

这很简单。它应该看起来像这样。这将为您提供一个起点。要获得更详细的答案，您应该具体化您的问题。

// Initial setup
RKObjectManager *manager = [RKObjectManager managerWithBaseURL:[NSURL URLWithString:@"your base url"]];

RKObjectMapping *mapping = [RKObjectMapping mappingForClass:modelClass];

[mapping addAttributeMappingsFromDictionary:@{@"sourceProperty" : @"destinationProperty"}];

[manager addResponseDescriptor:
               [RKResponseDescriptor
                   responseDescriptorWithMapping:mapping
                                          method:RKRequestMethodGET
                                     pathPattern:@"yourPath"
                                         keyPath:@"jsonStructureDepending"
                                     statusCodes:
                                         RKStatusCodeIndexSetForClass(
                                             RKStatusCodeClassSuccessful)]];

[[manager router].routeSet
                addRoutes:@[
                       [RKRoute routeWithClass:[model class]
                                   pathPattern:@"yourPath"
                                        method:RKRequestMethodGET]];


//Within your controller or elsewhere
[[RKObjectManager sharedManager] getObject:modelObject
                                      path:nil
                                parameters:nil
                                   success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
                                   }
                                   failure:^(RKObjectRequestOperation *operation, NSError *error) {
                                   }];