activeadmin has_many 隐藏删除按钮

Question

我有一个 has_many 通过关联如下：

class Room < ApplicationRecord
  has_many :room_options
  has_many :options, through: :room_options

  accepts_nested_attributes_for :room_options, allow_destroy: false
end

class RoomOption < ApplicationRecord
  belongs_to :room
  belongs_to :option
end

class Option < ApplicationRecord
  has_many :room_options
  has_many :rooms, through: :room_options
end

和一个 activeadmin 页面：

ActiveAdmin.register Room do
  permit_params :name, :guests_capacity, :description, :price, photos_attributes: [:id, :image, :is_primary, :_destroy]

  form(:html => { :multipart => true }) do |f|
    f.inputs do
      f.input :name
      f.input :guests_capacity
      f.input :description
      f.has_many :photos, allow_destroy: true do |photo|
        photo.input :image, as: :file, 
        hint: image_tag(photo.object.image_url(:thumb))
        photo.input :is_primary
      end

      Option.find_each { |option| f.object.room_options.build(option: option)}

      f.has_many :room_options, new_record: false, allow_destroy: false do |rof|
        rof.input :option_id, as: :hidden
        rof.input :has_option, as: :boolean, label: rof.object.option.name
      end

      f.input :price
    end
    f.actions
  end

end

我想从 f.has_many 中删除 'remove button'，但我似乎无法让它工作。我使用了 allow_destroy: false，但即使将它添加到 accepts_nested_resources 也不起作用。有谁知道如何让它工作？

Answer 1

奇怪

从文档看来，不包括 :allow_destroy 是没有销毁选项的解决方案

ActiveAdmin.register Post do

  form do |f|
    f.inputs 'Details' do
      f.input :title
      f.input :published_at, label: 'Publish Post At'
    end
    f.inputs 'Content', :body
    f.inputs do
      f.has_many :categories, heading: 'Themes',
                              allow_destroy: true,
                              new_record: false do |a|
        a.input :title
      end
    end
    f.inputs do
      f.has_many :taggings, sortable: :position, sortable_start: 1 do |t|
        t.input :tag
      end
    end
    f.inputs do
      f.has_many :comment,
                 new_record: 'Leave Comment',
                 allow_destroy: -> { |c| c.author?(current_admin_user) } do |b|
        b.input :body
      end
    end
    f.actions
  end

end

The :allow_destroy option adds a checkbox to the end of the nested form allowing removal of the child object upon submission. Be sure to set allow_destroy: true on the association to use this option. It is possible to associate :allow_destroy with a string or a symbol, corresponding to the name of a child object’s method that will get called, or with a Proc object. The Proc object receives the child object as a parameter and should return either true or false.

还需要 in some cases 包括 accepts_nested_attributes_for :images, allow_destroy: true 以包括此选项

我不知道如何解决这个问题，也许你应该 post 在他们的 github 页面上提出一个问题？

https://github.com/activeadmin/activeadmin/issues?utf8=%E2%9C%93&q=is%3Aissue%20is%3Aopen%20destroy

Answer 2

我为此使用 css。

  .has_many_container.room_options .has_many_remove {
    display: none;
  }

activeadmin has_many 隐藏删除按钮

activeadmin has_many hide remove button

ruby-on-rails

activeadmin