Rails 3和Carrierwave

Question

我使用Rails 3和Carrierwave。我有两个型号：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 

我如何保存图片和画廊？下列不保存图片：

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

Answer 1

可以有所帮助 http://blog.assimov.net/post/4306595758/multi-file-upload-with-uploadify-and-carrierwave-on

你可以使用你的模型如下

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 %> 

控制器应该是相同的，因为它从支架产生