ruby-on-rails - 载波:将版本名称移到文件名的末尾，而不是前

Question

当前在Carrierwave中，在创建像这样的不同版本时上传了foo.png这样的文件之后:

class ImageUploader < CarrierWave::Uploader::Base
  include CarrierWave::MiniMagick
  storage :fog
  def store_dir
    "#{model.class.to_s.underscore}/#{model.id}"
  end

  version :thumb do
    process :resize_to_fit => [500, 500]
  end
end

导致文件上传为:

thumb_foo.png
foo.png

由于SEO的原因，我想将“拇指”移动到文件名的末尾。根据此处的 docs，我添加了:

  def full_filename(for_file)
    if parent_name = super(for_file)
      extension = File.extname(parent_name)
      base_name = parent_name.chomp(extension)
      [base_name, version_name].compact.join("_") + extension
    end
  end

  def full_original_filename
    parent_name = super
    extension = File.extname(parent_name)
    base_name = parent_name.chomp(extension)
    [base_name, version_name].compact.join("_") + extension
  end

文档说这应该导致:

foo_thumb.png
foo.png

但是，我最终得到以下结果:

thumb_foo_thumb.png
foo.png

知道我在做什么错吗？

Answer 1

只需在#full_filename块下使用version即可:

class AvatarUploaer < CarrierWave::Uploader::Base
  include CarrierWave::MiniMagick

  storage :file

  version :thumb do
    process resize_to_fill: [50, 50]

    def full_filename(for_file = model.logo.file)
      parts     = for_file.split('.')
      extension = parts[-1]
      name      = parts[0...-1].join('.')
      "#{name}_#{version_name}.#{extension}"
    end
  end
end

结果如下:

/Users/user/app/uploads/1x1.gif
/Users/user/app/uploads/1x1_thumb.gif

在Wiki中的更多信息:How to: Migrate from one model to another

MVP示例:https://gist.github.com/itsNikolay/2394f84f31db33d4c3dc6634068b0259