token-validator: add recap

token-validator/students.go

@@ -11,6 +11,20 @@ import (
 )
 
 func init() {
+	router.GET("/api/progress/", apiHandler(
+		func(httprouter.Params, []byte) (interface{}, error) {
+			if stds, err := getStudents(); err != nil {
+				return nil, err
+			} else {
+				ret := map[string][]UnlockedChallenge{}
+				for _, std := range stds {
+					if ret[std.Login], err = std.getStates(); err != nil {
+						return nil, err
+					}
+				}
+				return ret, nil
+			}
+		}))
 	router.GET("/api/students/", apiHandler(
 		func(httprouter.Params, []byte) (interface{}, error) {
 			return getStudents()
@@ -150,6 +164,28 @@ type UnlockedChallenge struct {
 	Time      time.Time `json:"time"`
 }
 
+func (s Student) getStates() (ucs []UnlockedChallenge, err error) {
+	if rows, errr := DBQuery("SELECT id_st, challenge, time FROM student_challenges WHERE id_student = ?", s.Id); errr != nil {
+		return nil, errr
+	} else {
+		defer rows.Close()
+
+		for rows.Next() {
+			var u UnlockedChallenge
+			u.IdStudent = s.Id
+			if err = rows.Scan(&u.Id, &u.Challenge, &u.Time); err != nil {
+				return
+			}
+			ucs = append(ucs, u)
+		}
+		if err = rows.Err(); err != nil {
+			return
+		}
+
+		return
+	}
+}
+
 func (s Student) UnlockNewChallenge(challenge int, value string) (UnlockedChallenge, error) {
 	if res, err := DBExec("INSERT INTO student_challenges (id_student, challenge, time, value) VALUES (?, ?, ?, ?)", s.Id, challenge, time.Now(), value); err != nil {
 		return UnlockedChallenge{}, err