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
55 lines
1.8 KiB
Python
55 lines
1.8 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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from ...pyson import PYSON
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def digits_validate(value):
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if value:
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assert isinstance(value, tuple), 'digits must be a tuple'
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for i in value:
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assert isinstance(i, (int, long, PYSON)), \
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'digits must be tuple of integers or PYSON'
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if isinstance(i, PYSON):
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assert i.types().issubset(set([int, long])), \
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'PYSON digits must return an integer'
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class Float(Field):
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'''
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Define a float field (``float``).
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'''
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_type = 'float'
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_sql_type = 'FLOAT'
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def __init__(self, string='', digits=None, help='', required=False,
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readonly=False, domain=None, states=None, select=False,
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on_change=None, on_change_with=None, depends=None,
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context=None, loading='eager'):
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'''
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:param digits: a list of two integers defining the total
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of digits and the number of decimals of the float.
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'''
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super(Float, self).__init__(string=string, help=help,
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required=required, readonly=readonly, domain=domain, states=states,
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select=select, on_change=on_change, on_change_with=on_change_with,
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depends=depends, context=context, loading=loading)
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self.__digits = None
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self.digits = digits
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__init__.__doc__ += Field.__init__.__doc__
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def _get_digits(self):
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return self.__digits
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def _set_digits(self, value):
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digits_validate(value)
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self.__digits = value
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digits = property(_get_digits, _set_digits)
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def sql_format(self, value):
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if value is None:
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return None
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return float(value)
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