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"""
Wrappers for numeric types.
"""
# Copyright (C) 2020 The Psycopg Team
# Wrappers to force numbers to be cast as specific PostgreSQL types
# These types are implemented here but exposed by `psycopg.types.numeric`.
# They are defined here to avoid a circular import.
_MODULE = "psycopg.types.numeric"
class Int2(int):
"""
Force dumping a Python `!int` as a PostgreSQL :sql:`smallint/int2`.
"""
__module__ = _MODULE
__slots__ = ()
def __new__(cls, arg: int) -> "Int2":
return super().__new__(cls, arg)
def __str__(self) -> str:
return super().__repr__()
def __repr__(self) -> str:
return f"{self.__class__.__name__}({super().__repr__()})"
class Int4(int):
"""
Force dumping a Python `!int` as a PostgreSQL :sql:`integer/int4`.
"""
__module__ = _MODULE
__slots__ = ()
def __new__(cls, arg: int) -> "Int4":
return super().__new__(cls, arg)
def __str__(self) -> str:
return super().__repr__()
def __repr__(self) -> str:
return f"{self.__class__.__name__}({super().__repr__()})"
class Int8(int):
"""
Force dumping a Python `!int` as a PostgreSQL :sql:`bigint/int8`.
"""
__module__ = _MODULE
__slots__ = ()
def __new__(cls, arg: int) -> "Int8":
return super().__new__(cls, arg)
def __str__(self) -> str:
return super().__repr__()
def __repr__(self) -> str:
return f"{self.__class__.__name__}({super().__repr__()})"
class IntNumeric(int):
"""
Force dumping a Python `!int` as a PostgreSQL :sql:`numeric/decimal`.
"""
__module__ = _MODULE
__slots__ = ()
def __new__(cls, arg: int) -> "IntNumeric":
return super().__new__(cls, arg)
def __str__(self) -> str:
return super().__repr__()
def __repr__(self) -> str:
return f"{self.__class__.__name__}({super().__repr__()})"
class Float4(float):
"""
Force dumping a Python `!float` as a PostgreSQL :sql:`float4/real`.
"""
__module__ = _MODULE
__slots__ = ()
def __new__(cls, arg: float) -> "Float4":
return super().__new__(cls, arg)
def __str__(self) -> str:
return super().__repr__()
def __repr__(self) -> str:
return f"{self.__class__.__name__}({super().__repr__()})"
class Float8(float):
"""
Force dumping a Python `!float` as a PostgreSQL :sql:`float8/double precision`.
"""
__module__ = _MODULE
__slots__ = ()
def __new__(cls, arg: float) -> "Float8":
return super().__new__(cls, arg)
def __str__(self) -> str:
return super().__repr__()
def __repr__(self) -> str:
return f"{self.__class__.__name__}({super().__repr__()})"
class Oid(int):
"""
Force dumping a Python `!int` as a PostgreSQL :sql:`oid`.
"""
__module__ = _MODULE
__slots__ = ()
def __new__(cls, arg: int) -> "Oid":
return super().__new__(cls, arg)
def __str__(self) -> str:
return super().__repr__()
def __repr__(self) -> str:
return f"{self.__class__.__name__}({super().__repr__()})"