Fix Username method

cron/ldap_sync/main.go

@@ -15,10 +15,10 @@ import (
 
 	"text/template"
 
-	tpl_util "gogs.carducci-dante.gov.it/andrea.fazzi/karmen/util/template"
 	karmen_client "gogs.carducci-dante.gov.it/karmen/client"
 	"gogs.carducci-dante.gov.it/karmen/core/orm"
 	karmen_ldap "gogs.carducci-dante.gov.it/karmen/ldap"
+	tpl_util "gogs.carducci-dante.gov.it/karmen/util/template"
 )
 
 const (
@@ -210,7 +210,7 @@ func syncTeachersGroup(ldapClient *karmen_ldap.Client, teachers []*orm.Teacher,
 
 	actions := diff(
 		entries[0].Attributes[0].Values,
-		teachersToSliceFunc(teachers, func(t *orm.Teacher) string { return t.GenerateUsername() }),
+		teachersToSliceFunc(teachers, func(t *orm.Teacher) string { return t.Username() }),
 		excludes,
 	)