image - Add tags to images uploaded by carrierwave via cloudinary gem

Question

In my rails app I'm trying to add tags to images uploaded to cloudinary cloud.

in my carrierwave, ImageUploader class

include Cloudinary::CarrierWave

 # def cache_dir
 #   "#{Rails.root}/tmp/uploads"
 # end
 # 

process :convert => 'jpg'
cloudinary_transformation :quality => 80
process :tags => [ 'tag', model.name]

...

I'm trying to add name of the record in tags, but it gives error

method 'model' is undefined for class ImageUploader.

how can I access value of the field name inside my uploader.

I'm new to rails.

please help, thanks in advance!

Answer 1

您可以使用以下内容：

class PictureUploader < CarrierWave::Uploader::Base  
  include Cloudinary::CarrierWave

  process :convert => 'jpg'
  cloudinary_transformation 
  :quality => 80
  process :assign_tags

  def assign_tags      
    return :tags => ['tag', model.name]      
  end
end

您可以定义任何返回参数散列的方法。然后，您可以使用“流程”调用应用自定义方法。参数将传递给上传 API 调用。