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Developer tools · #django
Learn how to identify and resolve N+1 query patterns in Django using select_related and prefetch_related to reduce database round-trips and improve application latency.
Learn how to run multiple Python web apps from a single uWSGI Emperor, achieve zero‑downtime reloads, and keep your deployment simple and reliable.
A step‑by‑step guide to spotting N+1 query patterns, measuring them, and applying select_related or prefetch_related to reduce query counts in Django views and templates.
Learn how to enable global pagination in Django REST Framework, see a concrete settings.py and view example, understand limits, and avoid common pitfalls.
Django's lazy ORM makes N+1 queries easy to create. Learn when select_related's JOIN beats prefetch_related's second query, with a worked example and a test to lock in the fix.
An architecture note on Django's CSRF middleware: what it must guarantee, the minimal session-backed token design, the trust boundaries, operational checks, and failure modes.
Django's select_related and prefetch_related solve N+1 queries differently: JOINs for single-valued relationships, separate queries joined in Python for collections. A practical guide to choosing, combining, and verifying the fix with a worked article-listing example.
Learn how to design a minimal, secure custom user model in Django using AbstractBaseUser, from requirements through operational checks and failure‑mode mitigation. The guide covers email‑based auth, manager implementation, and when to rethink the design.
Learn when to use select_related versus prefetch_related to cut N+1 queries in Django, with a concrete example and verification steps.
python
uwsgi