Use Bool instead of comparison with None.
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parent
2d0be5fdc9
commit
1b03f31303
4
party.py
4
party.py
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@ -3,7 +3,7 @@
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from trytond.model import fields
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from trytond.model import fields
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from trytond.pool import PoolMeta
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from trytond.pool import PoolMeta
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from trytond.pyson import Eval
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from trytond.pyson import Eval, Bool
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__all__ = ['Party']
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__all__ = ['Party']
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__metaclass__ = PoolMeta
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__metaclass__ = PoolMeta
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@ -20,5 +20,5 @@ class Party:
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sale_invoice_grouping_period = fields.Property(fields.Selection(
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sale_invoice_grouping_period = fields.Property(fields.Selection(
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GROUPING_PERIODS, 'Sale Invoice Grouping Period', states={
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GROUPING_PERIODS, 'Sale Invoice Grouping Period', states={
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'invisible': Eval('sale_invoice_grouping_method') == None,
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'invisible': ~Bool(Eval('sale_invoice_grouping_method')),
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}, depends=['sale_invoice_grouping_method']))
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}, depends=['sale_invoice_grouping_method']))
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