Ejemplo n.º 1
0
func roster(w http.ResponseWriter, r *http.Request) *webapp.Error {
	id, err := strconv.ParseInt(r.FormValue("class"), 10, 64)
	if err != nil {
		return invalidData(w, "Invalid class ID")
	}
	c := appengine.NewContext(r)
	class, err := classes.ClassWithID(c, id)
	if err != nil {
		return invalidData(w, "No such class.")
	}
	acct, ok := userContext(r)
	if !ok {
		return badRequest(w, "Must be logged in.")
	}
	staff, _ := staff.WithID(c, acct.ID)
	if !canViewRoster(staff, acct, class.TeacherEntity(c)) {
		return webapp.UnauthorizedError(fmt.Errorf("only staff or teachers can view rosters"))
	}
	classStudents := students.In(c, class, time.Now())
	sort.Sort(students.ByName(classStudents))
	token, err := storeNewToken(c, acct.ID, "/register/paper")
	if err != nil {
		return webapp.InternalError(fmt.Errorf("Failed to store token: %s", err))
	}
	data := map[string]interface{}{
		"Class":    class,
		"Students": classStudents,
		"Token":    token.Encode(),
	}
	if err := rosterPage.Execute(w, data); err != nil {
		return webapp.InternalError(err)
	}
	return nil
}
Ejemplo n.º 2
0
func maybeOldStaff(c appengine.Context, a *account.Account, u *user.User) (*staff.Staff, error) {
	switch staffer, err := staff.WithID(c, a.ID); err {
	case nil:
		return staffer, nil
	case staff.ErrUserIsNotStaff:
		break
	default:
		return nil, err
	}
	staffer, err := staff.WithID(c, u.ID)
	if err != nil {
		return nil, err
	}
	c.Warningf("Found staff account under old ID %q", u.ID)
	if err := staffer.Delete(c); err != nil {
		return nil, fmt.Errorf("failed to delete old staff %q: %s", staffer.ID, err)
	}
	staffer.ID = a.ID
	if err := staffer.Store(c); err != nil {
		return nil, fmt.Errorf("failed to store new staff for %s: %s", a.Email, err)
	}
	return staffer, nil
}