Move line manual

modules/account_invoice/invoice.py

@@ -515,7 +515,9 @@ class Invoice(Workflow, ModelSQL, ModelView, TaxableMixin, InvoiceReportMixin):
             ~((table.state == 'cancelled') & (table.number == Null)),
             CharLength(table.number), table.number]
 
-    @fields.depends('selection_rate','rate_date')
+    @fields.depends(
+        'selection_rate', 'rate_date', 'currency', 'company', 'invoice_date',
+        'lines', 'lines.lot', 'lines.amount')
     def on_change_with_rate(self, name=None):
         return self.get_selected_rate()
     
@@ -528,8 +530,8 @@ class Invoice(Workflow, ModelSQL, ModelView, TaxableMixin, InvoiceReportMixin):
     def get_selected_rate(self,name=None):
         Currency = Pool().get('currency.currency')
         Date = Pool().get('ir.date')
-        company = self.company
-        currency = self.currency
+        company = getattr(self, 'company', None)
+        currency = getattr(self, 'currency', None)
 
         if not currency or not company:
             return None