Loopbackjs 定义Loopback.io belongsTo关系的正确方法

我有一个简单的两个环回模型之间的关系：

{
  "name": "ApiUser",
  "base": "PersistedModel",
  "idInjection": true,
  "options": {
    "postgresql": {
      "table": "users"
    },
    "validateUpsert": true
  },
  "properties": {
    "id": {
      "type": "string",
      "id": true,
      "required": true,
      "defaultFn": "uuid",
      "postgresql": {
        "dataType": "uuid"
      }
    },
    "email": {
        ...

及

当我运行自动迁移时，会创建shopifyaccount表，但它看起来很奇怪：

-------------------+---------+-------------------------------------------------------------

api|U键|文本|不为空

密码|文本|不为空

id | integer |非空默认nextval（'shopificationaccount_id_seq'：：regclass）

用户ID | uuid |

apiuserid|uuid|

索引：

“shopifyaccount_pkey”主键，btree（id）

为什么它要创建两个列，命名如下？即使我尝试指定foreignkey是“userid”，它仍然会创建apiuserid列。insert永远不会更新apiuserid列，但会更新userid列。然后在加入时，它将尝试使用apiuserid加入。我做错了什么？

所以。。。似乎需要在ApiUser和ShopifyAccount中的两个位置指定“foreignkey”：

{
  "name": "ApiUser",
  "base": "PersistedModel",
  "idInjection": true,
  "options": {
    "postgresql": {
      "table": "users"
    },
    "validateUpsert": true
  },
  "properties": {
    "id": {
      "type": "string",
      "id": true,
      "required": true,
      "defaultFn": "uuid",
      "postgresql": {
        "dataType": "uuid"
      }
    },
    "email": {
      "type": "string",
    ...
  "relations": {
    "shopifyAccounts": {
      "type": "hasOne",
      "model": "ShopifyAccount",
      "foreignKey": "userid"
    }
  },
  "acls": [],
  "methods": {}
}

  Column       |  Type   |                          Modifiers                          

{
  "name": "ApiUser",
  "base": "PersistedModel",
  "idInjection": true,
  "options": {
    "postgresql": {
      "table": "users"
    },
    "validateUpsert": true
  },
  "properties": {
    "id": {
      "type": "string",
      "id": true,
      "required": true,
      "defaultFn": "uuid",
      "postgresql": {
        "dataType": "uuid"
      }
    },
    "email": {
      "type": "string",
    ...
  "relations": {
    "shopifyAccounts": {
      "type": "hasOne",
      "model": "ShopifyAccount",
      "foreignKey": "userid"
    }
  },
  "acls": [],
  "methods": {}
}