class ActiveFedora::ContentModel

def self.pid_from_ruby_class(klass,attrs={})
  sanitized_class_name = klass.name.gsub(/(::)/, '_')
  pid_suffix = attrs.has_key?(:pid_suffix) ? attrs[:pid_suffix] : CMODEL_PID_SUFFIX
  namespace = attrs.has_key?(:namespace) ? attrs[:namespace] : CMODEL_NAMESPACE   
  return "#{namespace}:#{sanitized_class_name}#{pid_suffix}" 
end