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62 lines
2.3 KiB
62 lines
2.3 KiB
# sqlalchemy/processors.py
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# Copyright (C) 2010-2023 the SQLAlchemy authors and contributors
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# <see AUTHORS file>
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# Copyright (C) 2010 Gaetan de Menten gdementen@gmail.com
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#
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# This module is part of SQLAlchemy and is released under
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# the MIT License: https://www.opensource.org/licenses/mit-license.php
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"""defines generic type conversion functions, as used in bind and result
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processors.
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They all share one common characteristic: None is passed through unchanged.
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"""
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from __future__ import annotations
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import typing
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from ._py_processors import str_to_datetime_processor_factory # noqa
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from ..util._has_cy import HAS_CYEXTENSION
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if typing.TYPE_CHECKING or not HAS_CYEXTENSION:
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from ._py_processors import int_to_boolean as int_to_boolean
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from ._py_processors import str_to_date as str_to_date
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from ._py_processors import str_to_datetime as str_to_datetime
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from ._py_processors import str_to_time as str_to_time
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from ._py_processors import (
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to_decimal_processor_factory as to_decimal_processor_factory,
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)
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from ._py_processors import to_float as to_float
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from ._py_processors import to_str as to_str
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else:
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from sqlalchemy.cyextension.processors import (
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DecimalResultProcessor,
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)
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from sqlalchemy.cyextension.processors import ( # noqa: F401
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int_to_boolean as int_to_boolean,
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)
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from sqlalchemy.cyextension.processors import ( # noqa: F401,E501
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str_to_date as str_to_date,
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)
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from sqlalchemy.cyextension.processors import ( # noqa: F401
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str_to_datetime as str_to_datetime,
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)
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from sqlalchemy.cyextension.processors import ( # noqa: F401,E501
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str_to_time as str_to_time,
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)
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from sqlalchemy.cyextension.processors import ( # noqa: F401,E501
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to_float as to_float,
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)
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from sqlalchemy.cyextension.processors import ( # noqa: F401,E501
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to_str as to_str,
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)
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def to_decimal_processor_factory(target_class, scale):
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# Note that the scale argument is not taken into account for integer
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# values in the C implementation while it is in the Python one.
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# For example, the Python implementation might return
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# Decimal('5.00000') whereas the C implementation will
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# return Decimal('5'). These are equivalent of course.
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return DecimalResultProcessor(target_class, "%%.%df" % scale).process
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