admin: new route to get exercice stats

libfic/exercice.go

@@ -330,6 +330,21 @@ func (e Exercice) SolvedCount() int64 {
 	}
 }
 
+// SolvedTeams returns the list of Team that already have solved the challenge.
+func (e Exercice) SolvedTeams() (teams []int64) {
+	if rows, err := DBQuery("SELECT id_team FROM exercice_solved WHERE id_exercice = ?", e.Id); err == nil {
+		defer rows.Close()
+
+		for rows.Next() {
+			var tid int64
+			if err := rows.Scan(&tid); err == nil {
+				teams = append(teams, tid)
+			}
+		}
+	}
+	return
+}
+
 // TriedTeamCount returns the number of Team that attempted to solve the exercice.
 func (e Exercice) TriedTeamCount() int64 {
 	tries_table := "exercice_tries"
@@ -345,6 +360,32 @@ func (e Exercice) TriedTeamCount() int64 {
 	}
 }
 
+type TbT struct {
+	IdTeam int64 `json:"id_team"`
+	Tries  int64 `json:"tries"`
+}
+
+// TriesByTeam returns the number of tries by Team.
+func (e Exercice) TriesByTeam() (ts []TbT, sum int64) {
+	tries_table := "exercice_tries"
+	if SubmissionUniqueness {
+		tries_table = "exercice_distinct_tries"
+	}
+
+	if rows, err := DBQuery("SELECT id_team, COUNT(id_team) FROM " + tries_table + " WHERE id_exercice = ? GROUP BY id_team", e.Id); err == nil {
+		defer rows.Close()
+
+		for rows.Next() {
+			var tbt TbT
+			if err := rows.Scan(&tbt.IdTeam, &tbt.Tries); err == nil {
+				sum += tbt.Tries
+				ts = append(ts, tbt)
+			}
+		}
+	}
+	return
+}
+
 // TriedCount returns the number of cumulative attempts, all Team combined, for the exercice.
 func (e Exercice) TriedCount() int64 {
 	tries_table := "exercice_tries"