logo_uploader.rb

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

  def extension_white_list
    %w(jpg jpeg gif png)
  end

  process :convert => 'png'
  process :resize_to_limit => [1024, 1024]

  version :thumbnail do
    process :resize_to_fill => [770, 650]
    process convert: 'jpg'
    cloudinary_transformation fetch_format: :auto, quality: '90'
  end

  BIG_THUMBNAIL_DIMENSION = [800, 700]
  version :big_thumbnail do
    process :resize_to_fill => BIG_THUMBNAIL_DIMENSION
    process convert: 'jpg'
    cloudinary_transformation fetch_format: :auto, quality: '90'
  end

  THUMBNAIL_RATIO = 700.0 / 800.0

  version :thumbnail_180w do
    process :resize_to_fill => [180, (180 * THUMBNAIL_RATIO).to_i]
    process convert: 'jpg'
    cloudinary_transformation fetch_format: :auto, quality: '90'
  end

  version :thumbnail_256w do
    process :resize_to_fill => [256, (256 * THUMBNAIL_RATIO).to_i]
    process convert: 'jpg'
    cloudinary_transformation fetch_format: :auto, quality: '90'
  end

  version :thumbnail_512w do
    process :resize_to_fill => [512, (512 * THUMBNAIL_RATIO).to_i]
    process convert: 'jpg'
    cloudinary_transformation fetch_format: :auto, quality: '90'
  end

  version :thumbnail_768w do
    process :resize_to_fill => [768, (768 * THUMBNAIL_RATIO).to_i]
    process convert: 'jpg'
    cloudinary_transformation fetch_format: :auto, quality: '90'
  end

  version :thumbnail_1024w do
    process :resize_to_fill => [1024, (1024 * THUMBNAIL_RATIO).to_i]
    process convert: 'jpg'
    cloudinary_transformation fetch_format: :auto, quality: '90'
  end

  version :thumbnail_1280w do
    process :resize_to_fill => [1280, (1280 * THUMBNAIL_RATIO).to_i]
    process convert: 'jpg'
    cloudinary_transformation fetch_format: :auto, quality: '90'
  end
end