b8b3f8910e
* add more type annotations through the code * add typing in reflex/utils * misc typing * more typings * state typing * keep typing * typing init and utils * more typing for components * fix attempt for 3.9 * need more __future * more typings * type event plz * type model * type vars/base.py * enable 'ANN001' for reflex folder (ignore tests and benchmarks) * fix pyi * add missing annotations * use more precise error when ignoring
92 lines
2.6 KiB
Python
92 lines
2.6 KiB
Python
"""Compatibility hacks and helpers."""
|
|
|
|
import contextlib
|
|
import sys
|
|
from typing import Any
|
|
|
|
|
|
async def windows_hot_reload_lifespan_hack():
|
|
"""[REF-3164] A hack to fix hot reload on Windows.
|
|
|
|
Uvicorn has an issue stopping itself on Windows after detecting changes in
|
|
the filesystem.
|
|
|
|
This workaround repeatedly prints and flushes null characters to stderr,
|
|
which seems to allow the uvicorn server to exit when the CTRL-C signal is
|
|
sent from the reloader process.
|
|
|
|
Don't ask me why this works, I discovered it by accident - masenf.
|
|
"""
|
|
import asyncio
|
|
import sys
|
|
|
|
try:
|
|
while True:
|
|
sys.stderr.write("\0")
|
|
sys.stderr.flush()
|
|
await asyncio.sleep(0.5)
|
|
except asyncio.CancelledError:
|
|
pass
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def pydantic_v1_patch():
|
|
"""A context manager that patches the Pydantic module to mimic v1 behaviour.
|
|
|
|
Yields:
|
|
None when the Pydantic module is patched.
|
|
"""
|
|
import pydantic
|
|
|
|
if pydantic.__version__.startswith("1."):
|
|
# pydantic v1 is already installed
|
|
yield
|
|
return
|
|
|
|
patched_modules = [
|
|
"pydantic",
|
|
"pydantic.fields",
|
|
"pydantic.errors",
|
|
"pydantic.main",
|
|
]
|
|
originals = {module: sys.modules.get(module) for module in patched_modules}
|
|
try:
|
|
import pydantic.v1
|
|
|
|
sys.modules["pydantic.fields"] = pydantic.v1.fields # pyright: ignore [reportAttributeAccessIssue]
|
|
sys.modules["pydantic.main"] = pydantic.v1.main # pyright: ignore [reportAttributeAccessIssue]
|
|
sys.modules["pydantic.errors"] = pydantic.v1.errors # pyright: ignore [reportAttributeAccessIssue]
|
|
sys.modules["pydantic"] = pydantic.v1
|
|
yield
|
|
except (ImportError, AttributeError):
|
|
# pydantic v1 is already installed
|
|
yield
|
|
finally:
|
|
# Restore the original Pydantic module
|
|
for k, original in originals.items():
|
|
if k in sys.modules:
|
|
if original:
|
|
sys.modules[k] = original
|
|
else:
|
|
del sys.modules[k]
|
|
|
|
|
|
with pydantic_v1_patch():
|
|
import sqlmodel as sqlmodel
|
|
|
|
|
|
def sqlmodel_field_has_primary_key(field: Any) -> bool:
|
|
"""Determines if a field is a priamary.
|
|
|
|
Args:
|
|
field: a rx.model field
|
|
|
|
Returns:
|
|
If field is a primary key (Bool)
|
|
"""
|
|
if getattr(field.field_info, "primary_key", None) is True:
|
|
return True
|
|
if getattr(field.field_info, "sa_column", None) is None:
|
|
return False
|
|
return bool(getattr(field.field_info.sa_column, "primary_key", None))
|