[FIX] account_asset: float division by zero

The number of depreciations or the period length of your asset category cannot be null.

opw:773790

addons/account_asset/i18n/account_asset.pot

@@ -938,6 +938,12 @@ msgstr ""
 msgid "The number of depreciations needed to depreciate your asset"
 msgstr ""
 
+#. module: account_asset
+#: code:addons/account_asset/models/account_invoice.py:52
+#, python-format
+msgid "The number of depreciations or the period length of your asset category cannot be null."
+msgstr ""
+
 #. module: account_asset
 #: model:ir.ui.view,arch_db:account_asset.view_asset_depreciation_confirmation_wizard
 msgid "This wizard will post installment/depreciation lines for the selected month.<br/>\n"

addons/account_asset/models/account_invoice.py

@@ -48,6 +48,8 @@ class AccountInvoiceLine(models.Model):
         self.asset_end_date = False
         cat = self.asset_category_id
         if cat:
+            if cat.method_number == 0 or cat.method_period == 0:
+                raise UserError(_('The number of depreciations or the period length of your asset category cannot be null.'))
             months = cat.method_number * cat.method_period
             if self.invoice_id.type in ['out_invoice', 'out_refund']:
                 self.asset_mrr = self.price_subtotal_signed / months