[8.0][IMP] importo bollo non più obbligatorio e-invoice 1.6 (OCA#1866)

Author: vincenzoterzulli

l10n_it_fatturapa_out_stamp/wizard/wizard_export_fatturapa.py

@@ -2,8 +2,7 @@
 # License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl).
 
 from openerp import models
-from openerp.tools.translate import _
-from openerp.exceptions import Warning as UserError
+from openerp.tools.float_utils import float_round, float_is_zero
 from openerp.addons.l10n_it_fatturapa.bindings.fatturapa_v_1_2 import (
     DatiBolloType
 )
@@ -16,13 +15,11 @@ def setDatiGeneraliDocumento(self, invoice, body):
         res = super(WizardExportFatturapa, self).setDatiGeneraliDocumento(
             invoice, body)
         if invoice.tax_stamp:
-            if not invoice.company_id.tax_stamp_product_id:
-                raise UserError(_(
-                    "Tax Stamp Product not set for company %s"
-                ) % invoice.company_id.name)
             body.DatiGenerali.DatiGeneraliDocumento.DatiBollo = DatiBolloType(
-                BolloVirtuale="SI",
-                ImportoBollo='%.2f' % invoice.company_id.tax_stamp_product_id.
-                list_price,
-            )
+                BolloVirtuale="SI")
+            if invoice.company_id.tax_stamp_product_id:
+                stamp_price = invoice.company_id.tax_stamp_product_id.list_price
+                if not float_is_zero(stamp_price, precision_digits=2):
+                    body.DatiGenerali.DatiGeneraliDocumento.DatiBollo.ImportoBollo = \
+                        '%.2f' % float_round(stamp_price, 2)
         return res