Re: Critical hints about Django migrations
It seems to me that article is written by a guy who has a lot of knowledge of the database engine and has some issues (mostly) with Django migrations system. His solution to the problem is to use direct SQL statements which of course can be more finely controlled than whatever Django creates. While Django migrations really is a pain sometimes, it does 95% of work automatically and keeps you from worrying about schema changes that you made in your models. While I've been programming migrations by hand all my life before Django - and I DO see the advantages - I'm not sure I need those advantages. I could use some simplification and a bit less nitpicking, but I haven't yet encountered a need to hand code the migrations. The rest of features Django doesn't have, I can use (and sometimes do) just the way he proposes: by simply defining them and having the DB server do it without Django's knowledge. So, no problem there... So far Django has kept most of the DB issues I've been suffering from in the past away from me. And I'm quite happy to have them there. Away. LP, Jure On 06/08/2020 21:27, Paolo Melchiorre wrote: HI all, I would suggest reading this interesting article by Daniele Varrazzo (the maintainer of psycopg2 and creator of psycopg3) on Django migrations. It contains some criticisms but I also think some interesting hints for improving Django ORM : https://www.varrazzo.com/blog/2020/07/25/surviving-django/ See you, Paolo -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-developers+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/d085e493-3ea8-c2bd-bcba-57107c39b7e2%40gmail.com.
Re: Critical hints about Django migrations
While I agree with some of the author's points, I think a critical piece of context is that Django migrations are designed for the 90% case - i.e., people who just want something to work on a small scale and don't need to worry about many aspects of the database yet. Like all parts of Django, it's designed to be progressively ignorable if you need to, and even deliberately includes a way to run SQL migrations (as the author suggests) complete with state tracking and no need to write a separate script, and is the intended approach for larger teams/codebases like the ones I work on. Migrations isn't meant to only be "makemigrations" and the model-based approach; there's also an underlying SQL application and dependency ordering engine that can be used standalone. Andrew On Thu, Aug 6, 2020, at 1:27 PM, Paolo Melchiorre wrote: > HI all, > > I would suggest reading this interesting article by Daniele Varrazzo > (the maintainer of psycopg2 and creator of psycopg3) on Django > migrations. > > It contains some criticisms but I also think some interesting hints > for improving Django ORM : > https://www.varrazzo.com/blog/2020/07/25/surviving-django/ > > See you, > Paolo > > -- > Paolo Melchiorre > > https://www.paulox.net > > -- > You received this message because you are subscribed to the Google Groups > "Django developers (Contributions to Django itself)" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-developers+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-developers/CAKFO%2Bx6_1qffQt56u58fNuAv6P6_kTkV258t-3ShCQNAkRXvKQ%40mail.gmail.com. > -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-developers+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/b275d5cf-1405-43c5-8062-d15e5ff57507%40www.fastmail.com.
Critical hints about Django migrations
HI all, I would suggest reading this interesting article by Daniele Varrazzo (the maintainer of psycopg2 and creator of psycopg3) on Django migrations. It contains some criticisms but I also think some interesting hints for improving Django ORM : https://www.varrazzo.com/blog/2020/07/25/surviving-django/ See you, Paolo -- Paolo Melchiorre https://www.paulox.net -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-developers+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/CAKFO%2Bx6_1qffQt56u58fNuAv6P6_kTkV258t-3ShCQNAkRXvKQ%40mail.gmail.com.
