app/models/concerns/spina/gravatar.rb
module Spina
module Gravatar
extend ActiveSupport::Concern
def gravatar_url
"https://www.gravatar.com/avatar/#{gravatar_hash}?d=#{fallback_url}"
end
private
def fallback_url
"https://eu.ui-avatars.com/api/#{CGI.escape(name)}/128"
end
def gravatar_hash
Digest::MD5.hexdigest(email.to_s.strip.downcase)
end
end
end