在何处放置对象映射(在RestKIt中)

问题描述

由于我不想劫持另一个线程，因此我遇到了有关映射的问题.

As I don't want to hijack another thread here comes my question about mappings.

首先阅读:在哪里放置最佳位置RestKit中的对象映射

我敢肯定，布雷克·沃特斯(Blake Waters)给出的答案很可能是正确的，因为他是一个比我聪明得多，经验更丰富的人，但是对我来说，逻辑告诉我将映射放入每个模型中:如果您更改了某些内容，在模型中，只需滚动一下即可更改映射.

I'm sure that the answer Blake Waters gave will probable be very correct as he is a much smarter and more experienced guy than I am, but to me logic tells me to put the mapping in each model: if you change something in your model, you're just a scroll away to change your mappings.

然后在我的AppDelegate中，只需在每个模型中调用initMappings(或任何您想调用的对象)即可.

In my AppDelegate I would then just call the initMappings (or whatever you want to call it) in each of my models.

推荐答案

我也喜欢将映射与模型放置在一起.我通过向每个模型添加一个类方法来做到这一点，这样我就可以在需要的任何时候/任何地方获取映射.

I'm also a fan of placing the mappings with my models. I do it by adding a class method to each model so I can get the mapping whenever/wherever I need it.

+ (RKObjectMapping *)objectMapping
{
    RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[self class]];

    [mapping mapKeyPath:@"Id"       toAttribute:@"id"];
    [mapping mapKeyPath:@"Subject"      toAttribute:@"subject"];
    [mapping mapKeyPath:@"Message"      toAttribute:@"message"];
    [mapping mapKeyPath:@"PostDate"     toAttribute:@"postDateStr"];
    [mapping mapKeyPath:@"StatusId"     toAttribute:@"statusId"];
    [mapping mapKeyPath:@"StatusDate"   toAttribute:@"statusDateStr"];

    mapping.setNilForMissingRelationships = YES;

    return mapping;
}

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