ruby-on-rails-4 - ActiveAdmin 重复嵌套表单并删除复选框不起作用

Question

该表单可以将项目添加到模型中，但不会删除项目!更糟糕的是，任何更新都会复制所有嵌套表单(1x2=2，然后下一次更新为每个表单生成 4 个，等等)

app/admin/project.rb

ActiveAdmin.register Project do

  permit_params  :title, :description, :git_url, :demo_url, :version, :lastpublished, :firstpublished,
   project_features_attributes: [:project_id, :description, :_destroy => true],
   project_mentions_attributes: [:project_id, :title, :url, :published, :_destroy => true]

  form do |f|
    f.semantic_errors *f.object.errors.keys
    f.inputs
    f.buttons
  end

  form do |f|
    f.inputs "Project Details" do
      f.inputs :title
      f.inputs :description
      f.inputs :git_url, :default => "http://github.com/"
      f.inputs :demo_url
      f.inputs :version
      f.inputs :firstpublished
      f.inputs :lastpublished      
      f.inputs do
        f.has_many :project_features,
         :allow_destroy => true,
         :heading => 'Features' do |cf|
              cf.input :description
        end
      end
      f.inputs do
        f.has_many :project_mentions,
         :allow_destroy => true,
         :heading => 'Mentions' do |cf|
              cf.input :title 
              cf.input :url
              cf.input :published
        end
      end

    end


    f.actions
  end
end

应用程序/模型/project.rb

class Project < ActiveRecord::Base
    has_many :project_features, :dependent => :destroy
    accepts_nested_attributes_for :project_features,
     :reject_if => lambda{ |a| a[:description.blank?] },
     :allow_destroy => true

    has_many :project_mentions, :dependent => :destroy
    accepts_nested_attributes_for :project_mentions,
     :reject_if => lambda{ |a| a[:title.blank?] },
     :allow_destroy => true

    has_many :blogs

end

应用程序/模型/project_feature.rb

class ProjectFeature < ActiveRecord::Base
    belongs_to :project

end

应用程序/模型/project_feature.rb

class ProjectMention < ActiveRecord::Base
    belongs_to :project

end

Answer 1

试试 :_destroy而不是 :_destroy => true在 permit_params 块中。

复制:删除公用文件夹的内容。在开发模式下，您不必预编译 Assets 。

更新:您必须允许相关记录的 ID:

project_features_attributes: [:id, :project_id, :description, :_destroy],
project_mentions_attributes: [:id, :project_id, :title, :url, :published, :_destroy]