Gets the relative file path using the template.

        @type domain: str
        @param domain: The domain

        @type locale: str
        @param locale: The locale

        @rtype: string
        @return: The relative file path

def get_relative_path(self, domain, locale):
        """
        Gets the relative file path using the template.

        @type domain: str
        @param domain: The domain

        @type locale: str
        @param locale: The locale

        @rtype: string
        @return: The relative file path
        """
        return self.relative_path_template.format(
            domain=domain,
            locale=locale,
            extension=self.get_extension()
        )