ios - Restkit — 如何映射具有可变键名的 json 对象

Question

我必须映射这个结构，但我不知道如何识别“br.myservice.com”部分，因为它会改变，我无法构建常规的 RKObjectMapping，因为它使用固定字符串。

{ "objects": {
    "br.myservice.com": {
        "url": "http://br.myservice.com",
        "name": "Brazil",
        "flag": "br",
        "countries": ["br"]
    },
    "us.myservice.com": {
        "url": "http://us.myservice.com",
        "name": "United States",
        "flag": "us",
        "countries": ["us"]
  }
}

Answer 1

您需要使用 addAttributeMappingFromKeyOfRepresentationToAttribute:像这样:

RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[MyObject class]];
mapping.forceCollectionMapping = YES;
[mapping addAttributeMappingFromKeyOfRepresentationToAttribute:@"host"];
[mapping addAttributeMappingsFromDictionary:@{
    @"(host).url": @"url",
    @"(host).name": @"name",
    ... and so on ....
}];