Ruby On Rails Active Admin has_many更改下拉列表以使用其他列 [英] Ruby On Rails Active Admin has_many changing dropdown to use a different column

问题描述

我对ActiveAdmin和RoR完全陌生，我不知道如何更改has_many关联中下拉列表的可见值。

I am completely new to ActiveAdmin and RoR and i cant figure out how to change the visible value of the dropdowns in a has_many association.

class Fillup < ActiveRecord::Base
    // key is car_id:integer
    belongs_to :car
end

汽车型号

Car Model

class Car < ActiveRecord::Base
    validates :description, :presence => true
    key is fillup_id:integer
    has_many :fillups
end

当前显示的内容：

当前显示的是im假设已编码对分配给它的Car的引用。

What it currently shows:

It currently shows im assuming an encoded reference to the Car assigned to it.

我需要它显示给定的描述，该描述定义为 description：string 在汽车模型。

I need it to show the description given which is defined as description:string in the Car Model.

推荐答案

类似的东西应该可以工作...

Something like this should work...

在 app / admin / model_name.rb

form do |f|
  f.inputs "My Model Name" do
    # add your other inputs
    f.input :cars, :collection => Car.all.map{ |car| [car.description, car.id] }
    f.buttons
  end 
end

阅读本文以了解有关修改表单的更多信息。

Read this article to learn more about modifying the form.

AciveAdmin使用 formtastic ，您也应该阅读有关内容。

AciveAdmin uses formtastic, you should read about that as well.

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