本文整理汇总了Python中sqlalchemy.processors.to_float方法的典型用法代码示例。如果您正苦于以下问题：Python processors.to_float方法的具体用法？Python processors.to_float怎么用？Python processors.to_float使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sqlalchemy.processors的用法示例。
在下文中一共展示了processors.to_float方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: bind_processor
# 需要导入模块: from sqlalchemy import processors [as 别名]
# 或者: from sqlalchemy.processors import to_float [as 别名]
def bind_processor(self, dialect):
super_process = super(_SybNumeric_pyodbc, self).\
bind_processor(dialect)
def process(value):
if self.asdecimal and \
isinstance(value, decimal.Decimal):
if value.adjusted() < -6:
return processors.to_float(value)
if super_process:
return super_process(value)
else:
return value
return process 示例2: bind_processor
# 需要导入模块: from sqlalchemy import processors [as 别名]
# 或者: from sqlalchemy.processors import to_float [as 别名]
def bind_processor(self, dialect):
super_process = super(_SybNumeric_pyodbc, self).\
bind_processor(dialect)
def process(value):
if self.asdecimal and \
isinstance(value, decimal.Decimal):
if value.adjusted() < -6:
return processors.to_float(value)
if super_process:
return super_process(value)
else:
return value
return process 示例3: result_processor
# 需要导入模块: from sqlalchemy import processors [as 别名]
# 或者: from sqlalchemy.processors import to_float [as 别名]
def result_processor(self, dialect, coltype):
# we apply a cx_oracle type handler to all connections
# that converts floating point strings to Decimal().
# However, in some subquery situations, Oracle doesn't
# give us enough information to determine int or Decimal.
# It could even be int/Decimal differently on each row,
# regardless of the scale given for the originating type.
# So we still need an old school isinstance() handler
# here for decimals.
if dialect.supports_native_decimal:
if self.asdecimal:
fstring = "%%.%df" % self._effective_decimal_return_scale
def to_decimal(value):
if value is None:
return None
elif isinstance(value, decimal.Decimal):
return value
else:
return decimal.Decimal(fstring % value)
return to_decimal
else:
if self.precision is None and self.scale is None:
return processors.to_float
elif not getattr(self, '_is_oracle_number', False) \
and self.scale is not None:
return processors.to_float
else:
return None
else:
# cx_oracle 4 behavior, will assume
# floats
return super(_OracleNumeric, self).\
result_processor(dialect, coltype) 示例4: result_processor
# 需要导入模块: from sqlalchemy import processors [as 别名]
# 或者: from sqlalchemy.processors import to_float [as 别名]
def result_processor(self, dialect, type_):
if not self.asdecimal:
return processors.to_float
else:
return sqltypes.Numeric.result_processor(self, dialect, type_) 示例5: bind_processor
# 需要导入模块: from sqlalchemy import processors [as 别名]
# 或者: from sqlalchemy.processors import to_float [as 别名]
def bind_processor(self, dialect):
super_process = super(_SybNumeric_pyodbc, self).bind_processor(dialect)
def process(value):
if self.asdecimal and isinstance(value, decimal.Decimal):
if value.adjusted() < -6:
return processors.to_float(value)
if super_process:
return super_process(value)
else:
return value
return process 示例6: result_processor
# 需要导入模块: from sqlalchemy import processors [as 别名]
# 或者: from sqlalchemy.processors import to_float [as 别名]
def result_processor(self, dialect, coltype):
# we apply a cx_oracle type handler to all connections
# that converts floating point strings to Decimal().
# However, in some subquery situations, Oracle doesn't
# give us enough information to determine int or Decimal.
# It could even be int/Decimal differently on each row,
# regardless of the scale given for the originating type.
# So we still need an old school isinstance() handler
# here for decimals.
if dialect.supports_native_decimal:
if self.asdecimal:
fstring = "%%.%df" % self._effective_decimal_return_scale
def to_decimal(value):
if value is None:
return None
elif isinstance(value, decimal.Decimal):
return value
else:
return decimal.Decimal(fstring % value)
return to_decimal
else:
if self.precision is None and self.scale is None:
return processors.to_float
elif not getattr(self, '_is_oracle_number', False) \
and self.scale is not None:
return processors.to_float
else:
return None
else:
# cx_oracle 4 behavior, will assume
# floats
return super(_OracleNumeric, self).\
result_processor(dialect, coltype)