git.sesse.net Git - ccbs/blob - bigscreen/fetch_group.cpp

   1 #include "fetch_group.h"
   2
   3 FetchGroup::FetchGroup(unsigned tournament, unsigned round, unsigned parallel, Group *group) :
   4         tournament(tournament), round(round), parallel(parallel), dest_group(group) {}
   5
   6 void FetchGroup::operator() (pqxx::transaction<> &t)
   7 {
   8         pqxx::result res( t.exec("SELECT round,parallel,position,playmode,difficulty,songnumber,player,nick,song,title,artist,chosen,score FROM roundparticipation NATURAL JOIN players NATURAL JOIN scores NATURAL LEFT JOIN songs WHERE "
   9                 "tournament=" + pqxx::to_string(tournament) + " AND " +
  10                 "round=" + pqxx::to_string(round) + " AND " +
  11                 "parallel=" + pqxx::to_string(parallel) + " " +
  12                 "ORDER BY position,songnumber") );
  13
  14         curr_group.tournament = tournament;
  15         curr_group.round = round;
  16         curr_group.parallel = parallel;
  17
  18         // massage the data we get back into a Group object and children
  19         int curr_player = -1;
  20         for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
  21                 if (i["player"].as(curr_player) != curr_player) {
  22                         Player p;
  23
  24                         p.id = i["player"].as(p.id);
  25                         p.nick = i["nick"].as(p.nick);
  26                         p.total = 0;
  27                         p.rank = 1;
  28                         curr_group.players.push_back(p);
  29
  30                         curr_player = i["player"].as(curr_player);
  31                 }
  32
  33                 // note: we _will_ get some duplication here (multiple identical Song
  34                 // objects), but it isn't the end of the world
  35                 Score sc;
  36                 Song so;
  37
  38                 so.id = i["song"].as(so.id);
  39                 so.title = i["song"].as(so.title);
  40                 so.artist = i["song"].as(so.artist);
  41
  42                 sc.song = so;
  43                 sc.chosen = i["chosen"].as(sc.chosen);
  44                 sc.score = i["score"].as(sc.score);
  45
  46                 curr_group.players[curr_group.players.size() - 1].scores.push_back(sc);
  47         }
  48 }
  49
  50 void FetchGroup::OnCommit()
  51 {
  52         *dest_group = curr_group;
  53 }