Rails:尝试渲染为JSON时不会显示attr_accessor [英] Rails: attr_accessor doesn't show up when try to render as JSON

问题描述

在我的应用程序中，我有一个下面的模型；

In my application I have a model that is below;

class Init < ActiveRecord::Base
  attr_accessor :clientAvailability
  attr_accessible :returnCode, :returnMessage, :tokenCode, :updateURL
end

在这里，当我稍后添加** attr_accessor **并尝试应用** render json:init **时，即使设置了它也不会显示** clientAvailability **属性

In here when I've added the **attr_accessor** later on and when I try to apply **render json: init** it doesn't show the **clientAvailability** property even though I've set it as;

init=Init.new
init.clientAvailability="3"

当我调试时，我可以看到它已设置，但是当我尝试将其呈现为json时并不会简单地显示出来.我可能会缺少什么?

When I debug it I can see that it is set, but doesn't simply show up when I try to render it as json. What could be the thing I'm missing?

推荐答案

clientAvailability是数据库中的一列吗?如果没有，那么我认为这是默认方法-仅序列化数据库属性.但您可以这样做:

Is clientAvailability a column in the DB? If not, then I suppose it is the default way - to serialize only the DB attributes. But you can do:

render json: init, methods: [:clientAvailability]

包括clientAvailability属性.

to include clientAvailability attribute.

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