在 GraphQL 中检索对象 ID [英] Retrieve the object ID in GraphQL

问题描述

我想知道是否有可能获得一个对象的原始 id"作为查询的结果.每当我向服务器发出请求时，它都会返回节点全局标识符"，类似于 U29saWNpdGFjYW9UeXBlOjEzNTkxOA== .

I'd like to know whether it is possible to get the "original id" of an object as the result of the query. Whenever I make a request to the server, it returns the node "global identifier", something like U29saWNpdGFjYW9UeXBlOjEzNTkxOA== .

查询类似于这个:

{
  allPatients(active: true) {
    edges {
      cursor
      node {
        id
        state
        name
      }
    }
  }

返回的是:

{
  "data": {
      "edges": [
        {
          "cursor": "YXJyYXljb25uZWN0aW9uOjA=",
          "node": {
            "id": "U29saWNpdGFjYW9UeXBlOjEzNTkxOA==",
            "state": "ARI",
            "name": "Brad"
          }
        }
      ]
  }
}

如何在数据库级别(例如112")而不是该节点唯一标识符获取对象的原始"ID?

How can I get the "original" id of the object at the database level (e.g. '112') instead of that node unique identifier?

ps.:我在服务器端使用 graphene-python 和 Relay.

ps.: I am using graphene-python and Relay on the server side.

推荐答案

重写 Node 对象中的默认 to_global_id 方法对我有用:

Overriding default to_global_id method in Node object worked out for me:

class CustomNode(graphene.Node):
    class Meta:
        name = 'Node'

    @staticmethod
    def to_global_id(type, id):
        return id


 class ExampleType(DjangoObjectType):
     class Meta:
         model = Example
         interfaces = (CustomNode,)

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