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Developer tools · #django
Learn how to detect and fix N+1 queries in Django views by choosing between select_related and prefetch_related. Includes a worked example, trade‑offs, and a practical checklist.
Learn how to expose CRUD endpoints in minutes using DRF's ModelViewSet and DefaultRouter, including a full example, routing details, permissions, and common pitfalls to avoid.
A concise guide to choosing between Django’s low‑level Paginator and DRF’s PageNumberPagination or CursorPagination. Compare performance, use cases, and see a step‑by‑step implementation to validate your decision.
Learn how to enable Django's @cache_page for read‑heavy views, measure speedups, and handle cache invalidation. A step‑by‑step guide with example code, trade‑offs, and testing tips.
Stop the N+1 query problem in Django. Learn exactly when to use select_related for SQL joins and prefetch_related for Python-side lookups to optimize ORM performance.
Stop N+1 queries in Django by choosing select_related for foreign keys and prefetch_related for many-valued relations, then verify with SQL logging.
Enable ATOMIC_REQUESTS for per‑request write consistency, use explicit transaction.atomic for multi‑statement invariants, and defer external effects with on_commit or an outbox.
Learn how to extend Django REST Framework’s pagination to let clients request up to 200 items per page while protecting the server from abuse. Includes a concrete class, configuration steps, and a verification checklist.
Django's class-based generic views eliminate repetitive list-and-paginate code while maintaining flexibility for customization through method overriding.
python