当我渲染json时，attr_accessor的属性不显示 [英] Property from attr_accessor does not show when I render json

问题描述

在Rails中，我有一个User模型.我在模型中添加了attr_accessor :score.

In Rails, I have a User model. I added attr_accessor :scoreto the model.

如果为一个用户呈现JSON，则看不到得分"属性.为什么会这样?

If I render the JSON for one user, I do not see the "score" attribute. Why is this?

user = User.find(3)
user.score = 55
render json: user

推荐答案

render json: user, methods: [:score]

attr_accessor是getter和setter方法的替代方法，因此它是一种方法，正如我已经提到的，我们可以像上面所说的那样

attr_accessor is alternative for getter and setter method so it is a method and as I have mentioned we can call it as above

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