使用主键与Ember Data [英] Using primary keys with Ember Data
问题描述
过去几天,我一直在挣扎着,使用主键和最后一个版本的Ember Data。
我首先阅读了如何在 GitHub上的更改文件 a>,但显然已经过时了。我试过几个 其他 方式(在Peter Wagenet的帮助下IRC),但没有一个似乎不起作用。
我想在我的主键上设置 slug
模型,也是因为我正在使用MongoDB,我想使用 _id
而不是 id
。有没有人知道如何做到这一点?我的基本问题是,当我在模型上执行几个 App.MyModel.find()
时,模型记录被加载两次。
根据Ember Data 1.0 beta,您可以在相应的序列化器上定义 primaryKey
。
对于整个应用程序
App.ApplicationSerializer = DS.RESTSerializer.extend({
primaryKey: '_id'
});
单一类型
App.FooSerializer = DS.RESTSerializer.extend({
primaryKey:'_id'
});
您仍然将它称为 id
在模型中,但Ember Data将在传输期间将其序列化/反序列化为 _id
。
示例: http://emberjs.jsbin.com/OxIDiVU/635/edit
在此阅读更多信息: http://emberjs.com/api/data/classes /DS.RESTSerializer.html#property_primaryKey
I've been struggling for the past few days with primary keys and the last version of Ember Data.
I first read how to do it on the Breaking Changes file on GitHub, but it's apparently outdated. I tried several other ways (with the help of Peter Wagenet on IRC), but none of them seem to work.
I would like to make slug
my primary key on my model, and also since I'm working with MongoDB, I would like to use _id
instead of id
.
Has anyone figured out how to do this? My underlying problem is that model records get loaded twice when I do several App.MyModel.find()
on the model.
As of Ember Data 1.0 beta you define primaryKey
on the respective serializer.
For the entire app
App.ApplicationSerializer = DS.RESTSerializer.extend({
primaryKey: '_id'
});
For a single type
App.FooSerializer = DS.RESTSerializer.extend({
primaryKey: '_id'
});
You will still refer to it as id
on the model, but Ember Data will serialize/deserialize it to _id
during transfer.
Example: http://emberjs.jsbin.com/OxIDiVU/635/edit
Read More about it here: http://emberjs.com/api/data/classes/DS.RESTSerializer.html#property_primaryKey
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