def get_email_context(self, activation_key):
        """
        Build the template context used for the activation email.

        """
        scheme = 'https' if self.request.is_secure() else 'http'
        return {
            'scheme': scheme,
            'activation_key': activation_key,
            'expiration_days': settings.ACCOUNT_ACTIVATION_DAYS,
            'site': get_current_site(self.request)
        }
Build the template context used for the activation email.