6 /* A trigger that sets a flag whenever it's trigged. */
7 class FlagTrigger : pqxx::trigger {
12 FlagTrigger(pqxx::connection_base &conn, const PGSTD::string &name)
13 : pqxx::trigger(conn, name), flag(false) {}
14 virtual ~FlagTrigger() throw () {}
16 virtual void operator() (int pid)
19 std::fprintf(stderr, "Received a flag trigger from pid %u\n", pid);
39 /* A transactor that fetches the current tournament and some information about it. */
40 class FetchCurrentTournament : public pqxx::transactor<> {
45 FetchCurrentTournament(Tournament *tourn) : tourn(tourn) {}
46 void operator() (pqxx::transaction<> &t)
48 pqxx::result res( t.exec("SELECT * FROM bigscreen.active_tournament NATURAL JOIN tournaments") );
50 pqxx::result::tuple tournament = res.at(0);
52 tourn->id = tournament["tournament"].as(tourn->id);
53 tourn->name = tournament["tournamentname"].as(tourn->name);
54 } catch (PGSTD::out_of_range &e) {
61 void init(pqxx::connection &conn)
64 conn.perform(FetchCurrentTournament(&tourn));
67 std::fprintf(stderr, "No active tournament\n");
69 std::fprintf(stderr, "Current tournament is %d (name: '%s')\n",
70 tourn.id, tourn.name.c_str());
74 void main_loop(pqxx::connection &conn)
76 pqxx::work t(conn, "trx");
79 pqxx::result res( t.exec("SELECT * FROM songs") );
80 for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
81 // std::fprintf(stderr, "%s\n", i["title"].c_str());
88 int main(int argc, char **argv)
90 GLWindow glw("CCBS bigscreen", 800, 600, 32, false, 16, -1);
92 pqxx::connection conn("dbname=ccbs host=altersex.samfundet.no user=ccbs password=GeT|>>B_");
93 FlagTrigger tournament_changed(conn, "active_tournament");
95 // when active_tournament is changed, we destroy everything and start from scratch
97 tournament_changed.reset_flag();
102 } while (!tournament_changed.get_flag());
103 std::fprintf(stderr, "active_tournament changed, resetting...\n");
105 } catch (const std::exception &e) {
106 std::fprintf(stderr, "Exception: %s\n", e.what());