Ruby on rails 4 如何使用carrierwave保存动态图像数

我正在使用gem

Carrierwave

和

fog

将我的图像上传到

awss3

现在，我有这样的静态记忆

class CreateImagePosts < ActiveRecord::Migration
  def change
    create_table :image_posts do |t|
      t.string :img1
      t.string :img2
      t.string :img3
      t.string :img4
      t.string :img5
      t.string :img6
      t.string :img7
      t.string :img8

      t.timestamps null: false
    end
  end
end

class ImagePost < ActiveRecord::Base   

    mount_uploader :img1, S3uploaderUploader
    mount_uploader :img2, S3uploaderUploader
    mount_uploader :img3, S3uploaderUploader
    mount_uploader :img4, S3uploaderUploader
    mount_uploader :img5, S3uploaderUploader
    mount_uploader :img6, S3uploaderUploader
    mount_uploader :img7, S3uploaderUploader
    mount_uploader :img8, S3uploaderUploader

end

class CreateImagePosts

但我希望能够上传动态数量的图像，而不是像现在的设置（图像数量有限）

我的模型看起来像这样

class CreateImagePosts < ActiveRecord::Migration
  def change
    create_table :image_posts do |t|
      t.string :img1
      t.string :img2
      t.string :img3
      t.string :img4
      t.string :img5
      t.string :img6
      t.string :img7
      t.string :img8

      t.timestamps null: false
    end
  end
end

class ImagePost < ActiveRecord::Base   

    mount_uploader :img1, S3uploaderUploader
    mount_uploader :img2, S3uploaderUploader
    mount_uploader :img3, S3uploaderUploader
    mount_uploader :img4, S3uploaderUploader
    mount_uploader :img5, S3uploaderUploader
    mount_uploader :img6, S3uploaderUploader
    mount_uploader :img7, S3uploaderUploader
    mount_uploader :img8, S3uploaderUploader

end

class-ImagePost

---

有什么我可以阅读的建议或文件吗？谢谢。

创建模型

附件
与
有很多关系：

class ImagePost < ActiveRecord::Base
  has_many :attachments
end

class Attachment < ActiveRecord::Base
  belongs_to :image_post
  mount_uploader :img, S3uploaderUploader
end

这对我来说真是个好办法。那么，我不需要为
ImagePost
上的图像设置任何表格单元格？@ChangnamHong不，您不需要。您只需要在
附件中找到它们。谢谢！我明白。