用RestKit映射到Wordpress服务器

Question

我试图向本地Wordpress服务器发送一个JSON，我的映射如下所示：

[RKMIMETypeSerialization registerClass:[RKNSJSONSerialization class] forMIMEType:@"text/html"];

RKObjectMapping *orderEntryMapping = [RKObjectMapping requestMapping];

[orderEntryMapping addAttributeMappingsFromDictionary:@{
                                                        @"title": @"title"
                                                        }];

RKRequestDescriptor *requestDescriptorOrderEntry = [RKRequestDescriptor  requestDescriptorWithMapping:orderEntryMapping objectClass:[OrderSend class]   rootKeyPath:@"posts" method:RKRequestMethodPOST];
[objectManager addRequestDescriptor:requestDescriptorOrderEntry];

OrderSend类如下所示：

#import <Foundation/Foundation.h>

@interface OrderSend : NSObject

@property (nonatomic) NSString *title;

@end

这是发送请求的方法：

-(void) submitOrder:(OrderSend *) order completionHandler:(ResultObjectHandler) completionBlock
{

RKObjectManager *objectManager = [RKObjectManager sharedManager];

NSDictionary *parameters = @{
               @"json" : @"posts.create_post"
               };


[objectManager postObject:order path:@"" parameters:parameters success:^(RKObjectRequestOperation *operation, RKMappingResult *result)
 {
     NSLog(@"We object mapped the response with the following result: %@", result);
     completionBlock(result);
 }
                  failure:^(RKObjectRequestOperation *operation, NSError *error)
 {
     [self handleFailure:operation withError:error];
 }];    
 }

-(void) cancel{

[[RKObjectManager sharedManager].operationQueue cancelAllOperations];
}

-(void) handleFailure:(RKObjectRequestOperation *)operation withError:(NSError*)error {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error"
                                                message:[error localizedDescription]
                                               delegate:nil
                                      cancelButtonTitle:@"OK"
                                      otherButtonTitles:nil];
[alert show];
NSLog(@"Hit error: %@", error);
}

我正在为Wordpress使用JSON，但我得到了以下错误：

{NSLocalizedDescription=No mappable object representations were found at the key paths     searched., NSLocalizedFailureReason=The mapping operation was unable to find any nested   object representations at the key paths searched: categories, posts
The representation inputted to the mapper was found to contain nested object representations at the following key paths: error, status
This likely indicates that you have misconfigured the key paths for your mappings.,   keyPath=null, DetailedErrors=(
)}

有人能帮我吗？，谢谢

解决方案是创建一个响应描述符，如下所示：

RKResponseDescriptor *responseDescriptorOrderEntry = [RKResponseDescriptor     responseDescriptorWithMapping:orderEntryMapping method:RKRequestMethodAny pathPattern:nil     keyPath:@"" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
 [objectManager addResponseDescriptor:responseDescriptorOrderEntry];

Answer 1

您正在定义请求描述符，但没有定义响应描述符。因此，RestKit不知道如何处理响应。

您需要创建带有关联映射的响应描述符，以便RestKit知道如何应用响应。默认情况下，RestKit将尝试将响应数据应用于源对象(order)，但它需要知道如何做到这一点.