Question

我使用Active admin，我需要为我的项目上传照片。我该怎么做？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

使用此代码，我可以创建没有图像的Project。但是我无法将任何图像添加到db。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

我想念的最重要的部分是：images_attributes: [:image , :id , :_destroy]如果你没有完全写这部分，那就不行了！

使用paperclip Rails 5上传活动管理员多个图片上传

1 个答案: