Rails 3 和载波

【问题标题】：Rails 3 and carrierwaveRails 3 和载波
【发布时间】：2011-11-07 19:17:56
【问题描述】：

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

如何保存图片和画廊？以下不保存图片：

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

【问题讨论】：

标签： ruby-on-rails carrierwave

【解决方案1】：

你会发现这很有帮助 http://blog.assimov.net/post/4306595758/multi-file-upload-with-uploadify-and-carrierwave-on

您可以在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 %>

控制器应该和从脚手架生成的一样

【讨论】：