Rails 3和carrierwave

Question

我使用Rails 3和Carrierwave。我有两个模型：Gallery和GalleryPicture：

class Gallery < ActiveRecord::Base
  has_many :gallery_pictures
end

class GalleryPicture < ActiveRecord::Base
  belongs_to :gallery
  mount_uploader :gallery_pic, GalleryUploader
end

我该如何保存图片和相册？以下代码不能保存图片：

gallery = params[:gallery].delete(:gallery_pic)
@gallery = Gallery.new(params[:gallery])
@gallery.gallery_pictures << GalleryPicture.new(gallery)
@gallery.save

- maxfry

Answer 1

您可以在这里找到有用的信息：http://blog.assimov.net/post/4306595758/multi-file-upload-with-uploadify-and-carrierwave-on 您可以在您的模型中使用以下内容：

class Gallery < ActiveRecord::Base


 has_many   :gallery_pictures,  :dependent => :destroy
  accepts_nested_attributes_for :gallery_pictures

end

class GalleryPicture < ActiveRecord::Base

 belongs_to :gallery
  mount_uploader :gallery_pic, GalleryPicUploader
end

<% form_for @gallery %>
 <fields>

<%= f.fields_for :gallery_pictures do |builder| %>

<% end %>
<% end %>

控制器应与从脚手架生成的控制器相同。

- chaitanya