services/sqlstore: Order results in UserSearch by username/email (#23328)

* services/sqlstore: Order results in UserSearch by username/email
* Add index (login,email) on user table

pkg/services/sqlstore/migrations/user_mig.go

@@ -122,6 +122,10 @@ func addUserMigrations(mg *Migrator) {
 	mg.AddMigration("Add is_disabled column to user", NewAddColumnMigration(userV2, &Column{
 		Name: "is_disabled", Type: DB_Bool, Nullable: false, Default: "0",
 	}))
+
+	mg.AddMigration("Add index user.login/user.email", NewAddIndexMigration(userV2, &Index{
+		Cols: []string{"login", "email"},
+	}))
 }
 
 type AddMissingUserSaltAndRandsMigration struct {

pkg/services/sqlstore/sqlstore.go

@@ -68,7 +68,6 @@ func (ss *SqlStore) Init() error {
 	ss.readConfig()
 
 	engine, err := ss.getEngine()
-
 	if err != nil {
 		return fmt.Errorf("Fail to connect to database: %v", err)
 	}
@@ -232,7 +231,6 @@ func (ss *SqlStore) buildConnectionString() (string, error) {
 
 func (ss *SqlStore) getEngine() (*xorm.Engine, error) {
 	connectionString, err := ss.buildConnectionString()
-
 	if err != nil {
 		return nil, err
 	}

pkg/services/sqlstore/user.go

@@ -454,7 +454,7 @@ func SearchUsers(query *models.SearchUsersQuery) error {
 	offset := query.Limit * (query.Page - 1)
 	sess.Limit(query.Limit, offset)
 	sess.Cols("u.id", "u.email", "u.name", "u.login", "u.is_admin", "u.is_disabled", "u.last_seen_at", "user_auth.auth_module")
-	sess.OrderBy("u.id")
+	sess.Asc("u.login", "u.email")
 	if err := sess.Find(&query.Result.Users); err != nil {
 		return err
 	}