From: Steinar H. Gunderson <sesse@samfundet.no>
Date: Sat, 19 Feb 2005 15:57:10 +0000 (+0000)
Subject: Add beginning code for fetching groups.
X-Git-Url: https://git.sesse.net/?p=ccbs;a=commitdiff_plain;h=8970b43d021e65f07ed4d279185c5062b4f9ee4a

Add beginning code for fetching groups.
---

diff --git a/bigscreen/fetch_group.cpp b/bigscreen/fetch_group.cpp
new file mode 100644
index 0000000..7e131c4
--- /dev/null
+++ b/bigscreen/fetch_group.cpp
@@ -0,0 +1,53 @@
+#include "fetch_group.h"
+
+FetchGroup::FetchGroup(unsigned tournament, unsigned round, unsigned parallel, Group *group) :
+	tournament(tournament), round(round), parallel(parallel), dest_group(group) {}
+	
+void FetchGroup::operator() (pqxx::transaction<> &t)
+{
+	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 " +
+		"tournament=" + pqxx::to_string(tournament) + " AND " +
+		"round=" + pqxx::to_string(round) + " AND " +
+		"parallel=" + pqxx::to_string(parallel) + " " +
+		"ORDER BY position,songnumber") );
+
+	curr_group.tournament = tournament;
+	curr_group.round = round;
+	curr_group.parallel = parallel;
+	
+	// massage the data we get back into a Group object and children
+	int curr_player = -1;
+	for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
+		if (i["player"] != curr_player) {
+			Player p;
+
+			p.id = i["player"];
+			p.nick = i["nick"].as(p.nick);
+			p.total = 0;
+			p.rank = 1;
+			curr_group.players.push_back(p);
+			
+			curr_player = i["player"];
+		}
+
+		// note: we _will_ get some duplication here (multiple identical Song
+		// objects), but it isn't the end of the world
+		Score sc;
+		Song so;
+
+		so.id = i["song"].as(so.id);
+		so.title = i["song"].as(so.title);
+		so.artist = i["song"].as(so.artist);
+	
+		sc.song = so;
+		sc.chosen = i["chosen"].as(s.chosen);
+		sc.score = i["score"].as(s.score);
+		
+		curr_group.players[curr.group.players.size() - 1].scores.push_back(sc);
+	}
+}
+
+void FetchGroup::OnCommit()
+{
+	*dest_group = curr_group;
+}
diff --git a/bigscreen/fetch_group.h b/bigscreen/fetch_group.h
new file mode 100644
index 0000000..78b943e
--- /dev/null
+++ b/bigscreen/fetch_group.h
@@ -0,0 +1,20 @@
+#ifndef _FETCH_GROUP_H
+#define _FETCH_GROUP_H 1
+
+#include <pqxx/transactor>
+#include "group.h"
+
+/* A transactor that fetches a group, all its scores etc. */
+class FetchGroup : public pqxx::transactor<> {
+private:
+	unsigned tournament, round, parallel;
+	Group *dest_group;
+	Group curr_group;
+
+public:
+	FetchGroup(unsigned tournament, unsigned round, unsigned parallel, Group *group);
+	void operator() (pqxx::transaction<> &t);
+	void OnCommit();
+};
+
+#endif /* !defined(_FETCH_CURRENT_TOURNAMENT_H) */
diff --git a/bigscreen/group.h b/bigscreen/group.h
new file mode 100644
index 0000000..6961a90
--- /dev/null
+++ b/bigscreen/group.h
@@ -0,0 +1,30 @@
+#ifndef _GROUP_H
+#define _GROUP_H 1
+
+#include <vector>
+#include "widestring.h"
+
+/* This more or less mimics the structures from show-tournament.pl */
+struct Song {
+	unsigned id;
+	widestring title, artist;
+};
+struct Score {
+	Song song;
+	bool chosen;
+	unsigned score;
+}:
+struct Player {
+	unsigned id;
+	widestring nick;
+	unsigned score, rank;
+	
+	std::vector<Score> scores;
+};
+
+struct Group {
+	unsigned tournament, round, parallel;
+	std::vector<Player> players;
+};
+
+#endif /* !defined(_GROUPSCREEN_H) */
diff --git a/bigscreen/groupscreen.h b/bigscreen/groupscreen.h
new file mode 100644
index 0000000..c794f60
--- /dev/null
+++ b/bigscreen/groupscreen.h
@@ -0,0 +1,21 @@
+#ifndef _GROUPSCREEN_H
+#define _GROUPSCREEN_H 1
+
+#include "flagtrigger.h"
+#include "group.h"
+
+/* A screen class showing a group in the tournament */
+class GroupScreen : public Screen {
+private:
+	unsigned tournament;
+	FlagTrigger scores_changed;
+	
+
+public:
+	Screen(unsigned tournament);
+
+	bool check_invalidated();
+	void draw(unsigned char *buf);
+};
+
+#endif /* !defined(_GROUPSCREEN_H) */