RubyOnRails4如何在呈现JSON时从has_many关系中排除属性

Question

有没有办法排除属性：像@databases这样的工作？我是ruby和rails的新手，所以我怀疑（读：希望）我的语法错误，这是一个很容易解决的问题。

wants.json { render :json => @databases, :include => [:jobs], :except => [:id, :created_at, :updated_at] }

Answer 1

如果你的@databases对象的模型类has_many :jobs那么，你可以这样做：

render :json => @databases.to_json(:include => {:jobs => {:except => [:created_at, updated_at]}}, :except => [:id, :created_at, :updated_at])

Answer 2

<强>解决方案

将=> { :except => [:id] }添加到:jobs

wants.json { render :json => @databases, :include => [:jobs => { :except => [:id] }, :except => [:id, :created_at, :updated_at] }