+ if (format == FORMAT_NETWORK)
+ return std::string();
+
+ std::string ret;
+ Store<T>* store = static_cast<Store<T>*>(item);
+ for (typename insp::intrusive_list<Invite, T>::iterator i = store->invites.begin(); i != store->invites.end(); ++i)
+ {
+ Invite* inv = *i;
+ inv->Serialize(format, (ExtType == ExtensionItem::EXT_USER), ret);
+ }
+ if (!ret.empty())
+ ret.erase(ret.length()-1);
+ return ret;