diff --git a/rest.go b/rest.go
index 7ef9e92..2e50031 100644
--- a/rest.go
+++ b/rest.go
@@ -552,6 +552,9 @@ func CloneSchemas(ctx context.Context, db *gorm.DB, domain string) (err error) {
 		models  []*types.Schema
 	)
 	tx := db.WithContext(ctx)
+	if domain == "" {
+		domain = defaultDomain
+	}
 	if err = tx.Where("domain=?", defaultDomain).Find(&values).Error; err != nil {
 		return fmt.Errorf("schema not found")
 	}
@@ -608,6 +611,9 @@ func GetSchemas(ctx context.Context, db *gorm.DB, domain, moduleName, tableName
 
 // VisibleSchemas 获取某个场景下面的schema
 func VisibleSchemas(ctx context.Context, db *gorm.DB, domain, moduleName, tableName, scenario string) ([]*types.Schema, error) {
+	if domain == "" {
+		domain = defaultDomain
+	}
 	schemas, err := GetSchemas(ctx, db, domain, moduleName, tableName)
 	if err != nil {
 		return nil, err
@@ -629,6 +635,9 @@ func VisibleSchemas(ctx context.Context, db *gorm.DB, domain, moduleName, tableN
 func ModelTypes(ctx context.Context, db *gorm.DB, model any, domainName, labelColumn, valueColumn string) (values []*types.TypeValue) {
 	tx := db.WithContext(ctx)
 	result := make([]map[string]any, 0, 10)
+	if domainName == "" {
+		domainName = defaultDomain
+	}
 	tx.Model(model).Select(labelColumn, valueColumn).Where("domain=?", domainName).Scan(&result)
 	values = make([]*types.TypeValue, 0, len(result))
 	for _, pairs := range result {