RESTKIT仅响应映射结果字典或数组中的第一个KVC

时间:2014-11-02 20:53:09

标签: ios arrays restkit response partial

我在这里有点新意,这将是我的第一个问题, 任何提示将不胜感激。

我从我的restkit请求收到一个字典作为响应,但只包含一个值,我从我的json中缺少一堆KV,

我做错了吗?

Jason对API的回应:

{"categories" : [
{
  "status" : 1,
  "rest_id" : 1,
  "id" : 1,
  "title" : "01. BasicC",
  "description" : "basic description"
},
{
  "status" : 1,
  "rest_id" : 1,
  "id" : 26,
  "title" : "01. Deli",
  "description" : "deli description"
}
]}

IOS要求的功能:

- (void)loadProduct{
_categoriesDic=[[NSDictionary alloc]init];
RKObjectMapping* productMapping = [RKObjectMapping mappingForClass:[ProductCategory     class]];
[productMapping addAttributeMappingsFromDictionary:@{
                                                 @"id": @"id",
                                                 @"rest_id": @"rest_id",
                                                 @"title": @"title",
                                                 @"description": @"description",
                                                 @"status":@"status"
                                                 }];
RKLogConfigureByName("RestKit/Network", RKLogLevelTrace);
RKLogConfigureByName("RestKit/ObjectMapping", RKLogLevelTrace);

RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:productMapping method:RKRequestMethodPOST pathPattern:nil keyPath:@"categories" statusCodes:[NSIndexSet indexSetWithIndex:200]];

RKObjectManager *objectManager = [[RKObjectManager alloc] init];
[objectManager addResponseDescriptor:responseDescriptor];

NSString *jsonRequest = [NSString stringWithFormat:@"id=1"];
NSURL *url=[NSURL URLWithString:@"http://example.com/REST/v2/productCategories"];
NSData *json_data = [NSData dataWithBytes:[jsonRequest UTF8String] length:[jsonRequest length]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"POST"];
[request setHTTPBody: json_data];

RKObjectRequestOperation *objectRequestOperation = [[RKObjectRequestOperation alloc] initWithRequest:request responseDescriptors:@[ responseDescriptor ]];
[objectRequestOperation setCompletionBlockWithSuccess:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
    RKLogInfo(@"Load collection of Categories: %@", mappingResult.dictionary);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
    RKLogError(@"Operation failed with error: %@", error);
}];
[objectRequestOperation start];
}

响应:

Load collection of Categories: {
categories =     (
    "basic description",
    "deli description"
);
}

1 个答案:

答案 0 :(得分:0)

虽然你的代码做了一些有点奇怪的事情(比如创建一个空的不可变字典,以及POST到应该使用GET的端点),但它看起来确实有效。看起来你还没有完全理解响应,那是因为你无意中覆盖了内置方法。

您显示的日志包含:

{
    categories =     (
        "basic description",
        "deli description"
    );
}

是包含1个键(类别)的字典的description,它是一个包含2个对象的数组。现在,这两个对象也调用了description方法,以便生成日志内容。不幸的是,你有一个名为description的属性,因此可以访问而不是超类实现。因此你只需要获得描述。

现在,这并不意味着映射无效,只是日志有误导性。

您应该将目标对象上的description更改为其他名称,例如overview,然后您的日志将会有意义(将来您不会看到类似的问题)。