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 round,parallel,position,playmode,difficulty,songnumber,player,nick,song,title,COALESCE(shorttitle,title) AS shorttitle,artist,chosen,score FROM 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                 if (i["player"].as(curr_player) != curr_player) {
  23                         Player p;
  24
  25                         p.id = i["player"].as(p.id);
  26                         p.nick = i["nick"].as(p.nick);
  27                         p.total = 0;
  28                         p.rank = 1;
  29                         curr_group.players.push_back(p);
  30
  31                         curr_player = i["player"].as(curr_player);
  32                 }
  33
  34                 // note: we _will_ get some duplication here (multiple identical Song
  35                 // objects), but it isn't the end of the world
  36                 Score sc;
  37                 Song so;
  38
  39                 if (i["song"].is_null()) {
  40                         so.id = -1;
  41                 } else {
  42                         so.id = i["song"].as(so.id);
  43                         so.title = i["title"].as(so.title);
  44                         so.artist = i["artist"].as(so.artist);
  45                         so.short_title = i["shorttitle"].as(so.short_title);
  46                 }
  47
  48                 sc.song = so;
  49                 sc.chosen = i["chosen"].as(sc.chosen);
  50
  51                 if (i["score"].is_null()) {
  52                         sc.score = -1;
  53                 } else {
  54                         sc.score = i["score"].as(sc.score);
  55                 }
  56
  57                 curr_group.players[curr_group.players.size() - 1].scores.push_back(sc);
  58         }
  59 }
  60
  61 void FetchGroup::OnCommit()
  62 {
  63         *dest_group = curr_group;
  64 }