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# WARNING: do not modify this code, it is generated by expression.py.jinja2
import sys
from datetime import datetime
from typing import (
TYPE_CHECKING,
Any,
Generic,
Mapping,
Sequence,
Tuple,
Type,
TypeVar,
Union,
cast,
overload,
)
from uuid import UUID
from sqlalchemy import Column
from sqlalchemy.orm import InstrumentedAttribute
from sqlalchemy.sql.elements import ColumnClause
from sqlalchemy.sql.expression import Select as _Select
_TSelect = TypeVar("_TSelect")
# Workaround Generics incompatibility in Python 3.6
# Ref: https://github.com/python/typing/issues/449#issuecomment-316061322
if sys.version_info.minor >= 7:
class Select(_Select, Generic[_TSelect]):
pass
# This is not comparable to sqlalchemy.sql.selectable.ScalarSelect, that has a different
# purpose. This is the same as a normal SQLAlchemy Select class where there's only one
# entity, so the result will be converted to a scalar by default. This way writing
# for loops on the results will feel natural.
class SelectOfScalar(_Select, Generic[_TSelect]):
pass
else:
from typing import GenericMeta # type: ignore
class GenericSelectMeta(GenericMeta, _Select.__class__): # type: ignore
pass
class _Py36Select(_Select, Generic[_TSelect], metaclass=GenericSelectMeta):
pass
class _Py36SelectOfScalar(_Select, Generic[_TSelect], metaclass=GenericSelectMeta):
pass
# Cast them for editors to work correctly, from several tricks tried, this works
# for both VS Code and PyCharm
Select = cast("Select", _Py36Select) # type: ignore
SelectOfScalar = cast("SelectOfScalar", _Py36SelectOfScalar) # type: ignore
if TYPE_CHECKING: # pragma: no cover
from ..main import SQLModel
# Generated TypeVars start
_TScalar_0 = TypeVar(
"_TScalar_0",
Column, # type: ignore
Sequence, # type: ignore
Mapping, # type: ignore
UUID,
datetime,
float,
int,
bool,
bytes,
str,
None,
)
_TModel_0 = TypeVar("_TModel_0", bound="SQLModel")
_TScalar_1 = TypeVar(
"_TScalar_1",
Column, # type: ignore
Sequence, # type: ignore
Mapping, # type: ignore
UUID,
datetime,
float,
int,
bool,
bytes,
str,
None,
)
_TModel_1 = TypeVar("_TModel_1", bound="SQLModel")
_TScalar_2 = TypeVar(
"_TScalar_2",
Column, # type: ignore
Sequence, # type: ignore
Mapping, # type: ignore
UUID,
datetime,
float,
int,
bool,
bytes,
str,
None,
)
_TModel_2 = TypeVar("_TModel_2", bound="SQLModel")
_TScalar_3 = TypeVar(
"_TScalar_3",
Column, # type: ignore
Sequence, # type: ignore
Mapping, # type: ignore
UUID,
datetime,
float,
int,
bool,
bytes,
str,
None,
)
_TModel_3 = TypeVar("_TModel_3", bound="SQLModel")
# Generated TypeVars end
@overload
def select(entity_0: _TScalar_0, **kw: Any) -> SelectOfScalar[_TScalar_0]: # type: ignore
...
@overload
def select(entity_0: Type[_TModel_0], **kw: Any) -> SelectOfScalar[_TModel_0]: # type: ignore
...
# Generated overloads start
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: _TScalar_1,
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TScalar_1]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: Type[_TModel_1],
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TModel_1]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: _TScalar_1,
**kw: Any,
) -> Select[Tuple[_TModel_0, _TScalar_1]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: Type[_TModel_1],
**kw: Any,
) -> Select[Tuple[_TModel_0, _TModel_1]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: _TScalar_1,
entity_2: _TScalar_2,
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TScalar_1, _TScalar_2]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: _TScalar_1,
entity_2: Type[_TModel_2],
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TScalar_1, _TModel_2]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: Type[_TModel_1],
entity_2: _TScalar_2,
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TModel_1, _TScalar_2]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: Type[_TModel_1],
entity_2: Type[_TModel_2],
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TModel_1, _TModel_2]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: _TScalar_1,
entity_2: _TScalar_2,
**kw: Any,
) -> Select[Tuple[_TModel_0, _TScalar_1, _TScalar_2]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: _TScalar_1,
entity_2: Type[_TModel_2],
**kw: Any,
) -> Select[Tuple[_TModel_0, _TScalar_1, _TModel_2]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: Type[_TModel_1],
entity_2: _TScalar_2,
**kw: Any,
) -> Select[Tuple[_TModel_0, _TModel_1, _TScalar_2]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: Type[_TModel_1],
entity_2: Type[_TModel_2],
**kw: Any,
) -> Select[Tuple[_TModel_0, _TModel_1, _TModel_2]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: _TScalar_1,
entity_2: _TScalar_2,
entity_3: _TScalar_3,
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TScalar_1, _TScalar_2, _TScalar_3]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: _TScalar_1,
entity_2: _TScalar_2,
entity_3: Type[_TModel_3],
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TScalar_1, _TScalar_2, _TModel_3]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: _TScalar_1,
entity_2: Type[_TModel_2],
entity_3: _TScalar_3,
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TScalar_1, _TModel_2, _TScalar_3]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: _TScalar_1,
entity_2: Type[_TModel_2],
entity_3: Type[_TModel_3],
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TScalar_1, _TModel_2, _TModel_3]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: Type[_TModel_1],
entity_2: _TScalar_2,
entity_3: _TScalar_3,
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TModel_1, _TScalar_2, _TScalar_3]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: Type[_TModel_1],
entity_2: _TScalar_2,
entity_3: Type[_TModel_3],
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TModel_1, _TScalar_2, _TModel_3]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: Type[_TModel_1],
entity_2: Type[_TModel_2],
entity_3: _TScalar_3,
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TModel_1, _TModel_2, _TScalar_3]]:
...
@overload
def select( # type: ignore
entity_0: _TScalar_0,
entity_1: Type[_TModel_1],
entity_2: Type[_TModel_2],
entity_3: Type[_TModel_3],
**kw: Any,
) -> Select[Tuple[_TScalar_0, _TModel_1, _TModel_2, _TModel_3]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: _TScalar_1,
entity_2: _TScalar_2,
entity_3: _TScalar_3,
**kw: Any,
) -> Select[Tuple[_TModel_0, _TScalar_1, _TScalar_2, _TScalar_3]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: _TScalar_1,
entity_2: _TScalar_2,
entity_3: Type[_TModel_3],
**kw: Any,
) -> Select[Tuple[_TModel_0, _TScalar_1, _TScalar_2, _TModel_3]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: _TScalar_1,
entity_2: Type[_TModel_2],
entity_3: _TScalar_3,
**kw: Any,
) -> Select[Tuple[_TModel_0, _TScalar_1, _TModel_2, _TScalar_3]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: _TScalar_1,
entity_2: Type[_TModel_2],
entity_3: Type[_TModel_3],
**kw: Any,
) -> Select[Tuple[_TModel_0, _TScalar_1, _TModel_2, _TModel_3]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: Type[_TModel_1],
entity_2: _TScalar_2,
entity_3: _TScalar_3,
**kw: Any,
) -> Select[Tuple[_TModel_0, _TModel_1, _TScalar_2, _TScalar_3]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: Type[_TModel_1],
entity_2: _TScalar_2,
entity_3: Type[_TModel_3],
**kw: Any,
) -> Select[Tuple[_TModel_0, _TModel_1, _TScalar_2, _TModel_3]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: Type[_TModel_1],
entity_2: Type[_TModel_2],
entity_3: _TScalar_3,
**kw: Any,
) -> Select[Tuple[_TModel_0, _TModel_1, _TModel_2, _TScalar_3]]:
...
@overload
def select( # type: ignore
entity_0: Type[_TModel_0],
entity_1: Type[_TModel_1],
entity_2: Type[_TModel_2],
entity_3: Type[_TModel_3],
**kw: Any,
) -> Select[Tuple[_TModel_0, _TModel_1, _TModel_2, _TModel_3]]:
...
# Generated overloads end
def select(*entities: Any, **kw: Any) -> Union[Select, SelectOfScalar]: # type: ignore
if len(entities) == 1:
return SelectOfScalar._create(*entities, **kw) # type: ignore
return Select._create(*entities, **kw) # type: ignore
# TODO: add several @overload from Python types to SQLAlchemy equivalents
def col(column_expression: Any) -> ColumnClause: # type: ignore
if not isinstance(column_expression, (ColumnClause, Column, InstrumentedAttribute)):
raise RuntimeError(f"Not a SQLAlchemy column: {column_expression}")
return column_expression