Carrierwave MiniMagick裁剪多个版本

Question

我正在用minimagick做一些carrierwave的裁剪。我有3个大小，目前裁剪工作对大尺寸很好，但较小的尺寸似乎忽略了裁剪的图像，并从原始图像调整大小。

class PhotoUploader < CarrierWave::Uploader::Base
  include CarrierWave::MiniMagick
  include CarrierWave::Processing::MiniMagick
  version :thumb, from_version: :medium do
    process resize_to_fill: [100, 100]
  end

  version :medium, from_version: :large do
    process resize_to_fill: [261, 163]
  end

  version :large do
    process :conversion
  end

  # ... some methods
  private

  def conversion
    manipulate! do |img|
      img.format('JPG')
      img.strip
      if model.croppable?
        img.crop("#{model.w}x#{model.h}+#{model.x}+#{model.y}")
      end
      img = yield(img) if block_given?
      img
    end
  end
end

我如何告诉medium从裁剪的大版本而不是原始版本resize_to_fill？

Answer 1

正如@PinnyM所建议的，它是指定版本的顺序

class PhotoUploader < CarrierWave::Uploader::Base
  include CarrierWave::MiniMagick
  include CarrierWave::Processing::MiniMagick

  # Specify this first!
  version :large do
    process :conversion
  end

  version :medium, from_version: :large do
    process resize_to_fill: [261, 163]
  end

  version :thumb, from_version: :medium do
    process resize_to_fill: [100, 100]
  end

  #... everything else
end