admin: add some stats about exercices

libfic/exercice.go

@@ -360,6 +360,42 @@ func (e Exercice) TriedCount() int64 {
 	}
 }
 
+// FlagSolved returns the list of flags solved.
+func (e Exercice) FlagSolved() (res []int64) {
+	if rows, err := DBQuery("SELECT F.id_flag FROM flag_found F INNER JOIN exercice_flags E ON E.id_flag = F.id_flag WHERE E.id_exercice = ? GROUP BY id_flag", e.Id); err != nil {
+		return
+	} else {
+		defer rows.Close()
+
+		for rows.Next() {
+			var n int64
+			if err := rows.Scan(&n); err != nil {
+				return
+			}
+			res = append(res, n)
+		}
+		return
+	}
+}
+
+// MCQSolved returns the list of mcqs solved.
+func (e Exercice) MCQSolved() (res []int64) {
+	if rows, err := DBQuery("SELECT F.id_mcq FROM mcq_found F INNER JOIN exercice_mcq E ON E.id_mcq = F.id_mcq WHERE E.id_exercice = ? GROUP BY id_mcq", e.Id); err != nil {
+		return
+	} else {
+		defer rows.Close()
+
+		for rows.Next() {
+			var n int64
+			if err := rows.Scan(&n); err != nil {
+				return
+			}
+			res = append(res, n)
+		}
+		return
+	}
+}
+
 // CheckResponse, given both flags and MCQ responses, figures out if thoses are correct (or if they are previously solved).
 // In the meanwhile, CheckResponse registers good answers given (but it does not mark the challenge as solved at the end).
 func (e Exercice) CheckResponse(cksum []byte, respflags map[int64]string, respmcq map[int64]bool, t Team) (bool, error) {