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from contextlib import contextmanager
from asgiref.sync import iscoroutinefunction
from django.utils.decorators import sync_and_async_middleware
from .models import HistoricalRecords
@contextmanager
def _context_manager(request):
HistoricalRecords.context.request = request
try:
yield None
finally:
try:
del HistoricalRecords.context.request
except AttributeError:
pass
@sync_and_async_middleware
def HistoryRequestMiddleware(get_response):
"""Expose request to HistoricalRecords.
This middleware sets request as a local context/thread variable, making it
available to the model-level utilities to allow tracking of the authenticated user
making a change.
"""
if iscoroutinefunction(get_response):
async def middleware(request):
with _context_manager(request):
return await get_response(request)
else:
def middleware(request):
with _context_manager(request):
return get_response(request)
return middleware
|
