processors.pyx•1.79 kB
# cyextension/processors.pyx
# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: https://www.opensource.org/licenses/mit-license.php
import datetime
from datetime import datetime as datetime_cls
from datetime import time as time_cls
from datetime import date as date_cls
import re
from cpython.object cimport PyObject_Str
from cpython.unicode cimport PyUnicode_AsASCIIString, PyUnicode_Check, PyUnicode_Decode
from libc.stdio cimport sscanf
def int_to_boolean(value):
if value is None:
return None
return True if value else False
def to_str(value):
return PyObject_Str(value) if value is not None else None
def to_float(value):
return float(value) if value is not None else None
cdef inline bytes to_bytes(object value, str type_name):
try:
return PyUnicode_AsASCIIString(value)
except Exception as e:
raise ValueError(
f"Couldn't parse {type_name} string '{value!r}' "
"- value is not a string."
) from e
def str_to_datetime(value):
if value is not None:
value = datetime_cls.fromisoformat(value)
return value
def str_to_time(value):
if value is not None:
value = time_cls.fromisoformat(value)
return value
def str_to_date(value):
if value is not None:
value = date_cls.fromisoformat(value)
return value
cdef class DecimalResultProcessor:
cdef object type_
cdef str format_
def __cinit__(self, type_, format_):
self.type_ = type_
self.format_ = format_
def process(self, object value):
if value is None:
return None
else:
return self.type_(self.format_ % value)