with id <- XML.string_from_xpath("//id", entry),
activity when is_nil(activity) <- Activity.get_create_by_object_ap_id_with_object(id),
[author] <- :xmerl_xpath.string('//author[1]', doc),
with id <- XML.string_from_xpath("//id", entry),
activity when is_nil(activity) <- Activity.get_create_by_object_ap_id_with_object(id),
[author] <- :xmerl_xpath.string('//author[1]', doc),