Nicolas Évrard
5cee718423
This changeset defines on the field the (somehow) abstract SQL type a field should use letting the duty of specifying the real SQL type the database supports and the conversion to/from the python types to the backend. issue6351 review33951002
38 lines
1.4 KiB
Python
38 lines
1.4 KiB
Python
# This file is part of Tryton. The COPYRIGHT file at the top level of
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# this repository contains the full copyright notices and license terms.
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from .field import Field
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class Boolean(Field):
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'''
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Define a boolean field (``True`` or ``False``).
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'''
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_type = 'boolean'
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_sql_type = 'BOOL'
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def __init__(self, string='', help='', readonly=False, domain=None,
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states=None, select=False, on_change=None, on_change_with=None,
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depends=None, context=None, loading='eager'):
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super(Boolean, self).__init__(string=string, help=help, required=False,
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readonly=readonly, domain=domain, states=states, select=select,
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on_change=on_change, on_change_with=on_change_with,
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depends=depends, context=context, loading=loading)
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__init__.__doc__ = Field.__init__.__doc__
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def _domain_add_null(self, column, operator, value, expression):
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expression = super(Boolean, self)._domain_add_null(
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column, operator, value, expression)
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if operator in ('=', '!='):
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conv = {
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False: None,
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None: False,
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}
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if value is False or value is None:
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if operator == '=':
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expression |= (column == conv[value])
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else:
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expression &= (column != conv[value])
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return expression
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