使用回形针活动管理员多图像上传Rails 5

Question

我使用活动管理员，我需要上传我的项目照片。 我该怎么办？我的代码：

class Project < ApplicationRecord 
    has_many :images 
    accepts_nested_attributes_for :images 
end 

class Image < ApplicationRecord 
    belongs_to :project 
    has_attached_file :image 
    validates_attachment_presence :image 
end 


ActiveAdmin.register Project do 

permit_params :project_name , :project_location , :project_status , :project_area , :project_prices , :project_info , :project_description , :image , :image_file_name, :image_content_type, :image_file_size, :image_updated_at 

    index do 
    column :project_name 
    column :project_description 
    actions 
    end 

    form :html => { :enctype => "multipart/form-data" } do |f| 
    f.inputs 'Project Info' do 
     f.input :project_name 
     f.input :project_description 
    end 

    f.inputs do 
     f.has_many :images do |p| 
     p.input :image , as: :file 
     end 
    end 

    f.actions 
    end 

end 

有了这段代码，我可以创建没有图像的项目。但我不能添加任何图像数据库。 等待帮助！

Answer 1

我解决了这个问题！工作代码：

permit_params :project_name , :project_location , :project_status , :project_area , :project_prices , :project_info , :project_description , images_attributes: [:image , :id , :_destroy] 


    f.inputs do 
     f.has_many :images , heading: false, allow_destroy: true do |ff| 
     ff.input :image, required: true, as: :file 
     end 
    end 

，我怀念的是最重要的部分：images_attributes: [:image , :id , :_destroy]如果你不完全写这部分，它不会工作！