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         // note: this _will_ break if any song has more than one short title!
   9         pqxx::result res( t.exec("SELECT numqualifying,playmode,difficulty,position,songnumber,player,nick,song,title,COALESCE(shorttitle,title) AS shorttitle,artist,chosen,score FROM rounds NATURAL JOIN roundparticipation NATURAL JOIN players NATURAL JOIN scores NATURAL LEFT JOIN songs NATURAL LEFT JOIN songshorttitles WHERE "
  10                 "tournament=" + pqxx::to_string(tournament) + " AND " +
  11                 "round=" + pqxx::to_string(round) + " AND " +
  12                 "parallel=" + pqxx::to_string(parallel) + " " +
  13                 "ORDER BY position,songnumber") );
  14
  15         curr_group.tournament = tournament;
  16         curr_group.round = round;
  17         curr_group.parallel = parallel;
  18
  19         // massage the data we get back into a Group object and children
  20         int curr_player = -1;
  21         for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
  22                 curr_group.num_qualifying = i["numqualifying"].as(curr_group.num_qualifying);
  23
  24                 if (i["player"].as(curr_player) != curr_player) {
  25                         Player p;
  26
  27                         p.id = i["player"].as(p.id);
  28                         p.position = i["position"].as(p.id);
  29                         p.nick = i["nick"].as(p.nick);
  30                         p.total = 0;
  31                         p.rank = 1;
  32                         curr_group.players.push_back(p);
  33
  34                         curr_player = i["player"].as(curr_player);
  35                 }
  36
  37                 // note: we _will_ get some duplication here (multiple identical Song
  38                 // objects), but it isn't the end of the world
  39                 Score sc;
  40                 Song so;
  41
  42                 if (i["song"].is_null()) {
  43                         so.id = -1;
  44                 } else {
  45                         so.id = i["song"].as(so.id);
  46                         so.title = i["title"].as(so.title);
  47                         so.artist = i["artist"].as(so.artist);
  48                         so.short_title = i["shorttitle"].as(so.short_title);
  49                 }
  50
  51                 sc.song = so;
  52                 sc.chosen = i["chosen"].as(sc.chosen);
  53
  54                 if (i["score"].is_null()) {
  55                         sc.score = -1;
  56                 } else {
  57                         sc.score = i["score"].as(sc.score);
  58                         curr_group.players[curr_group.players.size() - 1].total += sc.score;
  59                 }
  60
  61                 curr_group.players[curr_group.players.size() - 1].scores.push_back(sc);
  62         }
  63 }
  64
  65 void FetchGroup::OnCommit()
  66 {
  67         *dest_group = curr_group;
  68 }