Tradeoffs of replacing core components
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This document discusses potential tradeoffs of replacing core Django components like the template engine and ORM. It recommends only making these changes if performance issues have been clearly identified and validated, caching and other optimizations have been exhausted, and the risks of losing compatibility are accepted. Specifically upgrading Django itself or replacing the template engine prematurely is not advised without ensuring the new approach is better suited to identified needs.
Tradeoffs of replacing core components
- 1. Tradeoffs of Replacing Core Components Andy Dai andy@dorm7.com Django Workshop 2014/1/21
- 2. SHOULD I SWAP OUT DJANGO TEMPLATE/ORM?
- 3. DON’T DO IT!
- 4. WAIT! NOT REALLY! IT’S WORTH IF…
- 5. YOU ARE OKAY WITH SACRIFICING ABILITY TO USE THIRD-PARTY DJANGO PACKAGES
- 6. YOU HAVE NO PROBLEM GIVING UP THE POWERFUL DJANGO ADMIN
- 7. YOU HAVE ALREADY ANALYZED YOUR OWN CODE TO FIND AND FIX THE ROOT CAUSES OF YOUR PROBLEMS
- 8. YOU’VE EXPLORED ALL OTHER OPTIONS INCLUDING CACHING AND DENORMALIZATION
- 9. YOU’RE VERY SURE THAT YOU’RE NOT OPTIMIZING PREMATURELY
- 10. YOU’RE WILLING TO ACCEPT THE FACT THAT UPGRADING DJANGO WILL BE EXTREMELY PAINFUL
- 11. THINK AGAIN!
- 12. OK. SO YOU WANT TO USE DJANGO WITHOUT…
- 13. “Django Admin” “Django Template” “Django ORM” “Django Third-Party Packages”
- 14. AND YOU ADD SOME PACKAGES…
- 19. DO NOT DO THIS GUESS WEBSITE WILL GROW RAPIDLY
- 20. IT’S OK IF…
- 21. YOU HAVE TRIED CACHING, INDEX, QUERY OPTIMIZATION..
- 22. YOU KNOW WHAT YOU ARE DOING
- 23. REPLACE DJANGO TEMPLATE WITH JINJA2/MAKO
- 24. DO NOT DO THIS LOGIC IN YOUR TEMPLATE
- 25. IT’S OK IF THERE ARE SOME PAGES THAT
- 26. ASK YOURSELF BEFORE REPLACING DJANGO TEMPLATE
- 27. “Why you want to do this?” “Where’s the bottleneck?” “Cache?”
- 28. DO IT ONLY WHEN YOU KNOW WHAT YOU ARE DOING
- 29. ALWAYS USE THE RIGHT TOOL FOR THE RIGHT JOB
- 30. “Premature optimization is the root of all evil” – Donald Knuth
- 31. Django/Jinja2 Integration • Jingo - https://github.com/jbalogh/jingo • coffin - https://github.com/coffin/coffin/ • django-jinja - https://github.com/niwibe/django-jinja
- 32. Replace Django ORM • SQLAlchemy - http://www.sqlalchemy.org/ • MongoEngine - http://mongoengine.org/
- 33. THANKS!