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trytond-sale_invoice_period
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Use Bool instead of comparison with None.

This commit is contained in:
Albert Cervera i Areny 2015-08-31 10:34:14 +02:00
parent 2d0be5fdc9
commit 1b03f31303
1 changed files with 2 additions and 2 deletions
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4
party.py
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@ -3,7 +3,7 @@
from trytond.model import fields
from trytond.pool import PoolMeta
from trytond.pyson import Eval
from trytond.pyson import Eval, Bool
__all__ = ['Party']
__metaclass__ = PoolMeta
@ -20,5 +20,5 @@ class Party:
sale_invoice_grouping_period = fields.Property(fields.Selection(
GROUPING_PERIODS, 'Sale Invoice Grouping Period', states={
'invisible': Eval('sale_invoice_grouping_method') == None,
'invisible': ~Bool(Eval('sale_invoice_grouping_method')),
}, depends=['sale_invoice_grouping_method']))