Rails 5.2 API-以JSON返回枚举值 [英] Rails 5.2 API - Returning enum value in JSON

问题描述

我目前在我的用户列中有一个Postgres枚举类型设置为roles.像预期的那样工作.

I currently have a postgres enum type setup in my user columns as roles. It works as intended like so.

示例:

class User < ApplicationRecord
  enum role: { admin: "Admin", viewer: "Viewer" } 
end

并且JSON响应将其返回为:

And the JSON response returns it as:

{
  "id": 1,
  "role": "admin"
}

但是，role属性将返回键而不是枚举值.有解决方案吗?

However, the role attribute is returning the key instead of the enum value. Is there a solution for this?

推荐答案

尝试一下

def as_json(options = {})
  super.tap do |hash|
    hash['role'] = User::roles[role]
  end
end

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