Normalize formatted tax identifiers for ID type

invoice.py

@@ -1109,16 +1109,28 @@ class Invoice(metaclass=PoolMeta):
         return {'amount_invoiced_goods': amount_invoiced_goods}
 
     def get_id_type(self, name):
-        if self.party:
-            if not self.party_tax_identifier:
-                return None
-            code_length = len(self.party_tax_identifier.code)
-            if code_length == 9:
-                return 1
-            elif code_length == 11:
-                return 2
-            else:
-                return 3
+        if not self.party or not self.party_tax_identifier:
+            return None
+
+        identifier = self.party_tax_identifier
+        identifier_type = getattr(identifier, 'type', None)
+        if identifier_type in {'do_rnc', 'do_vat'}:
+            return 1
+        if identifier_type == 'do_cedula':
+            return 2
+
+        # Tryton 8.0 stores a formatted display code (for example
+        # ``1-01-01063-2`` or ``001-1391820-5``). Use code_compact when
+        # available and still normalize it for migrated records whose compact
+        # value may retain the old formatting.
+        code = (getattr(identifier, 'code_compact', None)
+            or getattr(identifier, 'code', None) or '')
+        digits = re.sub(r'\D', '', code)
+        if len(digits) == 9:
+            return 1
+        if len(digits) == 11:
+            return 2
+        return 3
 
     @fields.depends('taxes', 'lines')
     def on_change_with_itbis_invoiced(self, name=None):