#include <pqxx/pqxx>
#include "glwindow.h"
+/* A trigger that sets a flag whenever it's trigged. */
+class FlagTrigger : pqxx::trigger {
+private:
+ bool flag;
+
+public:
+ FlagTrigger(pqxx::connection_base &conn, const PGSTD::string &name)
+ : pqxx::trigger(conn, name), flag(false) {}
+ virtual ~FlagTrigger() throw () {}
+
+ virtual void operator() (int pid)
+ {
+ flag = true;
+ std::fprintf(stderr, "Received a flag trigger from pid %u\n", pid);
+ }
+
+ bool get_flag() const
+ {
+ return flag;
+ }
+
+ void reset_flag()
+ {
+ flag = false;
+ }
+};
+
+/* A transactor that fetches the current tournament and some information about it. */
+class FetchCurrentTournament : public pqxx::transactor<> {
+private:
+ int id;
+ std::string name;
+
+public:
+ FetchCurrentTournament() {}
+ void operator() (pqxx::transaction<> &t)
+ {
+ pqxx::result res( t.exec("SELECT * FROM bigscreen.active_tournament NATURAL JOIN tournaments") );
+ try {
+ pqxx::result::tuple tournament = res.at(0);
+
+ id = tournament["tournament"].as(id);
+ name = tournament["tournament"].as(name);
+ } catch (PGSTD::out_of_range &e) {
+ std::fprintf(stderr, "foof\n");
+
+ id = -1;
+ name = "";
+ }
+ }
+
+ int get_tournament_id() const
+ {
+ return id;
+ }
+
+ std::string get_tournament_name() const
+ {
+ return name;
+ }
+};
+
+void init(pqxx::connection &conn)
+{
+ FetchCurrentTournament fct;
+ conn.perform(fct);
+
+ if (fct.get_tournament_id() == -1) {
+ std::fprintf(stderr, "No active tournament\n");
+ } else {
+ std::fprintf(stderr, "Current tournament is %d (name: '%s')\n",
+ fct.get_tournament_id(), fct.get_tournament_name().c_str());
+ }
+}
+
+void main_loop(pqxx::connection &conn)
+{
+ pqxx::work t(conn, "trx");
+
+ // fetch all songs
+ pqxx::result res( t.exec("SELECT * FROM songs") );
+ for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
+ // std::fprintf(stderr, "%s\n", i["title"].c_str());
+ }
+ t.commit();
+
+ sleep(1);
+}
+
int main(int argc, char **argv)
{
GLWindow glw("CCBS bigscreen", 800, 600, 32, false, 16, -1);
try {
- pqxx::connection conn("dbname=ccbs host=sql.samfundet.no user=ccbs password=GeT|>>B_");
- pqxx::transaction<> t(conn, "trx");
-
- // fetch all songs
- pqxx::result res( t.exec("SELECT * FROM songs") );
- for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
- std::fprintf(stderr, "%s\n", i["title"].c_str());
+ pqxx::connection conn("dbname=ccbs host=altersex.samfundet.no user=ccbs password=GeT|>>B_");
+ FlagTrigger tournament_changed(conn, "active_tournament");
+
+ // when active_tournament is changed, we destroy everything and start from scratch
+ for ( ;; ) {
+ tournament_changed.reset_flag();
+ init(conn);
+ do {
+ main_loop(conn);
+ conn.get_notifs();
+ } while (!tournament_changed.get_flag());
+ std::fprintf(stderr, "active_tournament changed, resetting...\n");
}
- t.commit();
} catch (const std::exception &e) {
std::fprintf(stderr, "Exception: %s\n", e.what());
exit(1);