def put_sqltype_decimal(buf_view, no_null_value, param_values, desc,
param_count, short_length):
scale = desc.scale
max_len = desc.max_len
if not isinstance(param_values, (int, str, Decimal)):
raise errors.DataError(
"invalid_parameter_value, data should be either int or str or decimal for column: {0}"
.format(param_count))
try:
param_values = Decimal(param_values)
except:
raise errors.DataError("decimal.ConversionSyntax")
if scale > 0:
param_values = param_values.fma(10**scale, 0)
sign = 1 if param_values.is_signed() else 0
param_values = param_values.__abs__()
param_values = param_values.to_integral_exact(
rounding='ROUND_DOWN').to_eng_string()
num_zeros = max_len - len(param_values)
if num_zeros < 0:
raise errors.DataError(
"data_truncation_exceed {0}".format(param_count))
padding = bytes('0'.encode() * num_zeros)
_ = Convert.put_bytes(padding, buf_view[no_null_value:], nolen=True)
if sign:
_ = Convert.put_bytes(param_values.encode(),
buf_view[no_null_value + num_zeros:],
nolen=True,
is_data=True)
# byte -80 : 0xFFFFFFB0
num, _ = Convert.get_bytes(buf_view[no_null_value:], length=1)
_ = Convert.put_bytes(bytes([int(num) | 0xB0]),
buf_view[no_null_value:],
nolen=True,
is_data=True)
# _ = Convert.put_bytes(num | 0xB0, buf_view[no_null_value:], nolen=True, is_data=True)
else:
_ = Convert.put_bytes(param_values.encode(),
buf_view[no_null_value + num_zeros:],
nolen=True,
is_data=True)
return buf_view
class ContractingDecimal:
def _get_other(self, other):
if type(other) == ContractingDecimal:
return other._d
elif type(other) == float or type(other) == int:
o = str(other)
return Decimal(neg_sci_not(o))
return other
def __init__(self, a):
if type(a) == float or type(a) == int:
o = str(a)
self._d = Decimal(neg_sci_not(o))
elif type(a) == Decimal:
self._d = a
elif type(a) == str:
self._d = Decimal(neg_sci_not(a))
else:
self._d = Decimal(a)
def __bool__(self):
return self._d > 0
def __eq__(self, other):
return self._d.__eq__(self._get_other(other))
def __lt__(self, other):
return self._d.__lt__(self._get_other(other))
def __le__(self, other):
return self._d.__le__(self._get_other(other))
def __gt__(self, other):
return self._d.__gt__(self._get_other(other))
def __ge__(self, other):
return self._d.__ge__(self._get_other(other))
def __str__(self):
return self._d.__str__()
def __neg__(self):
return self._d.__neg__()
def __pos__(self):
return self._d.__pos__()
def __abs__(self):
return self._d.__abs__()
def __add__(self, other):
x = self._d.__add__(self._get_other(other))
return fix_precision(x)
def __radd__(self, other):
return fix_precision(self._d.__radd__(self._get_other(other)))
def __sub__(self, other):
return fix_precision(self._d.__sub__(self._get_other(other)))
def __rsub__(self, other):
return fix_precision(self._d.__rsub__(self._get_other(other)))
def __mul__(self, other):
return fix_precision(self._d.__mul__(self._get_other(other)))
def __rmul__(self, other):
return fix_precision(self._d.__rmul__(self._get_other(other)))
def __truediv__(self, other):
return fix_precision(self._d.__truediv__(self._get_other(other)))
def __rtruediv__(self, other):
return fix_precision(self._d.__rtruediv__(self._get_other(other)))
def __divmod__(self, other):
return fix_precision(self._d.__divmod__(self._get_other(other)))
def __rdivmod__(self, other):
return fix_precision(self._d.__divmod__(self._get_other(other)))
def __mod__(self, other):
return fix_precision(self._d.__mod__(self._get_other(other)))
def __rmod__(self, other):
return fix_precision(self._d.__rmod__(self._get_other(other)))
def __floordiv__(self, other):
return fix_precision(self._d.__floordiv__(self._get_other(other)))
def __rfloordiv__(self, other):
return fix_precision(self._d.__rfloordiv__(self._get_other(other)))
def __pow__(self, other):
return fix_precision(self._d.__pow__(self._get_other(other)))
def __rpow__(self, other):
return fix_precision(self._d.__rpow__(self._get_other(other)))
def __int__(self):
return self._d.__int__()
def __float__(self):
return float(self._d)
def __round__(self, n=None):
return self._d.__round__(n)
class ContractingDecimal:
def _get_other(self, other):
if type(other) == ContractingDecimal:
return other._d
elif type(other) == float or type(other) == int:
return Decimal(str(other))
return other
def __init__(self, a):
if type(a) == float or type(a) == int:
a = str(a)
self._d = Decimal(a)
def __bool__(self):
return self._d > 0
def __eq__(self, other):
return self._d.__eq__(self._get_other(other))
def __lt__(self, other):
return self._d.__lt__(self._get_other(other))
def __le__(self, other):
return self._d.__le__(self._get_other(other))
def __gt__(self, other):
return self._d.__gt__(self._get_other(other))
def __ge__(self, other):
return self._d.__ge__(self._get_other(other))
def __str__(self):
return self._d.__str__()
def __neg__(self):
return self._d.__neg__()
def __pos__(self):
return self._d.__pos__()
def __abs__(self):
return self._d.__abs__()
def __add__(self, other):
x = self._d.__add__(self._get_other(other))
return fix_precision(x)
def __radd__(self, other):
return fix_precision(self._d.__radd__(self._get_other(other)))
def __sub__(self, other):
return fix_precision(self._d.__sub__(self._get_other(other)))
def __rsub__(self, other):
return fix_precision(self._d.__rsub__(self._get_other(other)))
def __mul__(self, other):
return fix_precision(self._d.__mul__(self._get_other(other)))
def __rmul__(self, other):
return fix_precision(self._d.__rmul__(self._get_other(other)))
def __truediv__(self, other):
return fix_precision(self._d.__truediv__(self._get_other(other)))
def __rtruediv__(self, other):
return fix_precision(self._d.__rtruediv__(self._get_other(other)))
def __divmod__(self, other):
return fix_precision(self._d.__divmod__(self._get_other(other)))
def __rdivmod__(self, other):
return fix_precision(self._d.__divmod__(self._get_other(other)))
def __mod__(self, other):
return fix_precision(self._d.__mod__(self._get_other(other)))
def __rmod__(self, other):
return fix_precision(self._d.__rmod__(self._get_other(other)))
def __floordiv__(self, other):
return fix_precision(self._d.__floordiv__(self._get_other(other)))
def __rfloordiv__(self, other):
return fix_precision(self._d.__rfloordiv__(self._get_other(other)))
def __pow__(self, other):
return fix_precision(self._d.__pow__(self._get_other(other)))
def __rpow__(self, other):
return fix_precision(self._d.__rpow__(self._get_other(other)))
def __int__(self):
return self._d.__int__()
def __float__(self):
raise Exception('Cannot cast Decimal to float.')
def __repr__(self):
return self._d.__repr__()