使用 RestKit 在 NSDictionary 中嵌套对象 [英] Nested objects in NSDictionary with RestKit

问题描述

我有一个 JSON 文档，其中包含具有未知键的对象中具有已知架构的对象，我想用 RestKit 映射它.让我解释一下:

<预><代码>{目的":{"unknownKey1" : {"data1" : "...", "data2" : "..."},"unknownKey2" : {"data1" : "...", "data2" : "..."},unknownKey3":{data1":..."，data2":..."}}}

键为object"的对象的设置只有在运行时才知道.对象中包含的键具有随机名称.但是，我知道存储在这些未知键中的对象的确切架构.

现在我想将带有键object"的对象内容映射到 NSDictionary，因为它提供了对随机键的轻松访问.但是，由于存储在这些键中的对象的架构是已知的，我希望将它们映射到自定义对象.

那么是否有可能映射到包含这些对象的 NSDictionary?我还没有找到解决方案...

解决方案

你可以这样做:

RKObjectMapping* mapping = [RKDynamicObjectMapping dynamicMapping];mapping.objectMappingForDataBlock = ^(id 数据) {NSDictionary* object = [data objectForKey: @"object"];NSArray* keys = [object allKeys];RKObjectMapping* dataMapping = [RKObjectMapping objectMapping];//使用key定义映射返回数据映射；};

I have a JSON document which contains objects with known schema in an object with unknown keys and I'll like to map that with RestKit. Let me explain this:

{
    "object":
    {
        "unknownKey1" : {"data1" : "...", "data2" : "..."},
        "unknownKey2" : {"data1" : "...", "data2" : "..."},
        "unknownKey3" : {"data1" : "...", "data2" : "..."}
    }
}

The setup of the object with key "object" is only known at runtime. The keys included in the object have random names. However, I know the exact schema of the objects stored at these unknown keys.

Now I would like to map the content of the object with key "object" to a NSDictionary as it provides easy access to the random keys. However, as the schema of the objects stored at these keys is known, I would like them to be mapped to custom objects.

So is there a possibility to map to a NSDictionary containing these objects? I haven't found a solution...

解决方案

You could do something like this:

RKObjectMapping* mapping = [RKDynamicObjectMapping dynamicMapping];
mapping.objectMappingForDataBlock = ^(id data) {
    NSDictionary* object = [data objectForKey: @"object"];
    NSArray* keys = [object allKeys];

    RKObjectMapping* dataMapping = [RKObjectMapping objectMapping];
    //Use the keys to define mapping
    return dataMapping;
};

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