ArturT/Railstom

# encoding: utf-8

class AvatarUploader < CarrierWave::Uploader::Base

  # Include RMagick or MiniMagick support:
  # include CarrierWave::RMagick
  include CarrierWave::MiniMagick

  # Choose what kind of storage to use for this uploader:
  storage :file
  # storage :fog

  SMALL_WIDTH = 64
  SMALL_HEIGHT = 64

  NORMAL_WIDTH = 160
  NORMAL_HEIGHT = 160

  # 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

  # Provide a default URL as a default if there hasn't been a file uploaded:
  def default_url
    email_address = model.email.downcase
    hash = Digest::MD5.hexdigest(email_address)
    unless version_name.nil?
      size = AvatarUploader.const_get("#{version_name.upcase}_WIDTH")
      size_param = "?s=#{size}"
    end
    "http://www.gravatar.com/avatar/#{hash}#{size_param}"
  end

  # Process files as they are uploaded:
  # process :scale => [200, 300]
  #
  # def scale(width, height)
  #   # do something
  # end

  # Create different versions of your uploaded files:
  version :small do
    process resize_to_fill: [SMALL_WIDTH, SMALL_HEIGHT]
  end

  version :normal do
    process resize_to_fill: [NORMAL_WIDTH, NORMAL_HEIGHT]
  end

  # Add a white list of extensions which are allowed to be uploaded.
  # For images you might use something like this:
  def extension_white_list
    %w(jpg jpeg gif png)
  end

  # Override the filename of the uploaded files:
  # Avoid using model.id or version_name here, see uploader/store.rb for details.
  # def filename
  #   "something.jpg" if original_filename
  # end

end