Register the date of the last login

lib/database/users.go

@@ -1,6 +1,8 @@
 package database
 
 import (
+	"time"
+
 	log "github.com/cihub/seelog"
 
 	"bytes"
@@ -11,11 +13,12 @@ import (
 )
 
 type user struct {
-	ID       int    `sql:"type:serial"`
-	Username string `sql:"type:varchar(255),unique"`
-	Password []byte
-	Salt     []byte
-	Role     string `sql:"type:varchar(255)"`
+	ID        int    `sql:"type:serial"`
+	Username  string `sql:"type:varchar(255),unique"`
+	Password  []byte
+	Salt      []byte
+	Role      string `sql:"type:varchar(255)"`
+	LastLogin time.Time
 }
 
 func (db *pgDB) AddUser(name string, pass string) error {
@@ -66,7 +69,18 @@ func (db *pgDB) ValidPassword(name string, pass string) bool {
 	if err != nil {
 		return false
 	}
-	return bytes.Compare(u.Password, hash) == 0
+	if bytes.Compare(u.Password, hash) != 0 {
+		return false
+	}
+
+	_, err = db.sql.Model(&user{}).
+		Set("last_login = CURRENT_TIMESTAMP").
+		Where("id = ?", u.ID).
+		Update()
+	if err != nil {
+		log.Error("Error updating last login for ", u.Username, ": ", err)
+	}
+	return true
 }
 
 func (db *pgDB) SetPassword(name string, pass string) error {