Merge pull request #245 from damdam-s/8.0-sale_payment_method-amount_…

…zero

[FIX] do not generate payment if amount=0

sale_payment_method/sale.py

@@ -23,6 +23,7 @@
 import logging
 from openerp import api, models, fields, exceptions, _
 import openerp.addons.decimal_precision as dp
+from openerp.tools import float_is_zero
 
 _logger = logging.getLogger(__name__)
 
@@ -102,9 +103,11 @@ def automatic_payment(self, amount=None):
         else:
             amounts = [(date, amount)]
 
+        precision = self.env['decimal.precision'].precision_get('Account')
         # reversed is cosmetic, compute returns terms in the 'wrong' order
         for date, amount in reversed(amounts):
-            self._add_payment(journal, amount, date)
+            if not float_is_zero(amount, precision_digits=precision):
+                self._add_payment(journal, amount, date)
         return True
 
     @api.multi