例如,我有一个简单的JSON,如下所示:
{
"id": "123",
"author": {
"id": "1",
"name": "Paul"
},
"title": "My awesome blog post",
"comments": [
{
"id": "324",
"commenter": {
"id": "2",
"name": "Nicole"
}
},
{
"id": "325",
"commenter": {
"id": "3",
"name": "Alex"
}
}
]
}
中的模式进行规范化后
import { normalize, schema } from 'normalizr';
// Define a users schema
const user = new schema.Entity('users');
// Define your comments schema
const comment = new schema.Entity('comments', {
commenter: user
});
// Define your article
const article = new schema.Entity('articles', {
author: user,
comments: [ comment ]
});
const normalizedData = normalize(originalData, article);
我会得到这个规范化的JSON:
{
result: "123",
entities: {
"articles": {
"123": {
id: "123",
author: "1",
title: "My awesome blog post",
comments: [ "324", "325" ]
}
},
"users": {
"1": { "id": "1", "name": "Paul" },
"2": { "id": "2", "name": "Nicole" },
"3": { "id": "3", "name": "Alex" }
},
"comments": {
"324": { id: "324", "commenter": "2" },
"325": { id: "325", "commenter": "3" }
}
}
}
在normalizedData.result
中,我只会获得文章ID。但是,如果我需要comments
或users
的ID,该怎么办?基本上我可以使用Object.keys()
来获取它,可能还有其他任何方式,normalizr可以从API提供我们以便在规范化步骤中获取此数据吗? API我找不到任何关于它的信息。或者你可以建议任何方法来做,而不是自动?因为Object.keys()
不适合我。
答案 0 :(得分:1)
由于您正常化的值是article
,因此Normalizr的result
值将是文章的ID。正如您自己建议的那样,如果您需要使用不同的嵌套实体类型的ID,则必须使用Object.keys(normalizedData.entities.comments)