Module: HasGravatar::Extensions::ClassMethods

Defined in:
lib/has_gravatar/extensions.rb

Instance Method Summary collapse

Instance Method Details

#has_gravatar(*fields) ⇒ Object 



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# File 'lib/has_gravatar/extensions.rb', line 7

def has_gravatar *fields
  fields.each do |field|
    method_name = "#{field}_gravatar".to_sym
    self.send :define_method, method_name do |*args|
      protocol = '://'
      default_url = nil
      size = nil
      if args.is_a?(Array) && args.size == 1 && args[0].is_a?(Hash) then
        args = args[0]
        protocol = 's://secure.' if args.has_key?(:secure) && args[:secure] == true
        # From: ERB library (http://rdoc.info/stdlib/erb/1.8.7/ERB/Util%3aurl_encode)
        default_url = 'd=' << args[:default_avatar].to_s.gsub(/[^a-zA-Z0-9_\-.]/n){ sprintf("%%%02X", $&.unpack("C")[0]) } if args.has_key? :default_avatar
        size = 's=' << args[:size].to_s if args.has_key? :size
      end
      hash = Digest::MD5.hexdigest(self.send field.to_sym)
      suffix = [default_url, size].reject! {|item| item == nil || item.empty? }.join('&')
      suffix = '?' << suffix unless suffix.empty?
      
      "http#{protocol}gravatar.com/avatar/#{hash}#{suffix}"
    end
  end
end