Question

请帮助我了解CarrierWave的工作原理。我正在使用最小的Sinatra / DataMapper应用程序，其中包含以下内容：

class VideoUploader < CarrierWave::Uploader::Base
  storage :file
end

class Video
  include DataMapper::Resource
  property :id, Serial
  property :name, String
  property :desc, Text
  mount_uploader :file, VideoUploader
end

get '/' do
  slim :form
end

post '/' do
  video = Video.new
  video.name = params[:name]
  video.desc = params[:desc]
  video.file = params[:file]
  video.save
  redirect '/'
end

据我所知，视频定义中的mount_uploader :file, VideoUploader字符串将 .video 方法添加到视频实例，我可以存储上传分配 params [：file] 。当我尝试从浏览器发送表单时，请求在DB表中成功创建了记录，但我在DB和 public_directory 中找不到任何文件存在的迹象。我做错了什么？

Answer 1

您可能应该在store_dir类中定义VideoUploader方法：

class VideoUploader < CarrierWave::Uploader::Base

  storage :file

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end
....
end

CarrierWave存储在哪里上传

1 个答案: