59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
package main
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import (
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"crypto/rand"
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"time"
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)
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type Session struct {
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Id []byte `json:"id"`
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IdStudent int64 `json:"login"`
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Time time.Time `json:"time"`
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}
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func getSession(id []byte) (s Session, err error) {
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err = DBQueryRow("SELECT id_session, id_student, time FROM student_sessions WHERE id_session=?", id).Scan(&s.Id, &s.IdStudent, &s.Time)
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return
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}
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func (student Student) NewSession() (Session, error) {
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session_id := make([]byte, 255)
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if _, err := rand.Read(session_id); err != nil {
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return Session{}, err
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} else if _, err := DBExec("INSERT INTO student_sessions (id_session, id_student, time) VALUES (?, ?, ?)", session_id, student.Id, time.Now()); err != nil {
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return Session{}, err
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} else {
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return Session{session_id, student.Id, time.Now()}, nil
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}
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}
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func (s Session) Update() (int64, error) {
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if res, err := DBExec("UPDATE student_sessions SET id_student = ?, time = ? WHERE id_session = ?", s.IdStudent, s.Time, s.Id); err != nil {
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return 0, err
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} else if nb, err := res.RowsAffected(); err != nil {
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return 0, err
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} else {
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return nb, err
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}
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}
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func (s Session) Delete() (int64, error) {
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if res, err := DBExec("DELETE FROM student_sessions WHERE id_session = ?", s.Id); err != nil {
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return 0, err
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} else if nb, err := res.RowsAffected(); err != nil {
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return 0, err
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} else {
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return nb, err
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}
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}
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func ClearSession() (int64, error) {
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if res, err := DBExec("DELETE FROM student_sessions"); err != nil {
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return 0, err
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} else if nb, err := res.RowsAffected(); err != nil {
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return 0, err
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} else {
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return nb, err
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}
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}
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