👀 Views: 224 💬 Answers: 1 📅 Created: 2025-06-20

django async postgresql database views Python

I'm migrating some code and After trying multiple solutions online, I still can't figure this out. I'm trying to debug I'm facing an issue while working with async views in Django 4.1 and PostgreSQL. I have an async view that attempts to fetch data from the database and then perform some operations based on the fetched data. However, I'm encountering unexpected behavior where the database queries sometimes return empty results, even though I can verify the data exists in the database through other means. Here's a simplified version of my async view: ```python from django.http import JsonResponse from django.views import View from asgiref.sync import sync_to_async from myapp.models import MyModel class MyAsyncView(View): async def get(self, request): results = await self.fetch_data() return JsonResponse({'data': results}) @sync_to_async def fetch_data(self): return list(MyModel.objects.filter(active=True)) ``` I've wrapped my `fetch_data` method with `sync_to_async`, which I thought would allow me to safely interact with the database in an async context. Yet, on occasion, the `results` list is empty, which is puzzling. I have checked the database connections and even used `print` statements to log the SQL queries being executed, and they appear correct. I also tried using Django's `database_sync_to_async` decorator rather than `sync_to_async`, but the behavior remains the same. I'm aware that Django's support for async views is still evolving, and I'm wondering if there are specific caveats or configurations I may have overlooked that would lead to such intermittent empty results. Is there something particular about using async views with database transactions that I need to be cautious about, or any other alternatives I should consider? I'm on Windows 11 using the latest version of Python. Any suggestions would be helpful. My team is using Python for this desktop app. I appreciate any insights!