26 lines
733 B
Python
26 lines
733 B
Python
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# -*- coding: utf-8 -*-
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# This file is part of the cashbook-module from m-ds for Tryton.
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# The COPYRIGHT file at the top level of this repository contains the
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# full copyright notices and license terms.
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from trytond.pool import PoolMeta
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from trytond.pyson import Eval, And, Or
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class InvoiceLine(metaclass=PoolMeta):
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__name__ = 'account.invoice.line'
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@classmethod
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def __setup__(cls):
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super(InvoiceLine, cls).__setup__()
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cls.unit.states['required'] = Or(
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cls.unit.states['required'],
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And(
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Eval('type') == 'line',
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Eval('quantity', None) != None,
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),
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)
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cls.unit.depends.extend(['type', 'quantity'])
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# end Invoice
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