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cqqxo4zV46cp | 1 year ago

Django’s ORM is the first one that I ever spent a lot of time with. Throughout my career I’ve interacted with other ORMs from time to time. It wasn’t until I’d done that, that I realised, even though it’s not perfect, how fantastic the Django ORM is. I thought they’d all be that good, but no.

I’ve read a lot of criticisms of ORMs, as I’m sure everyone else has. Some of them are certainly valid criticisms that are immovable and just inherent in what an ORM tries to do. Some of them just seem to be caused by not very many ORMs being good, and the writer not having used one of the better ones.

discuss

order

Swizec|1 year ago

For me Django and ActiveRecord stand out as 2 good examples of what an ORM should be like. Both feel like they make the simple stuff super easy, the complex stuff figure outable, and the super hard stuff trivially possible with raw SQL and a decent mapping from that back to regular code.

Although over the years my code trends more and more towards `.rawSql` or whatever equivalent exists. Even for the simple stuff. It’s just so much easier than first thinking up my query then bending over backwards three times to make it fit into the ORM’s pet syntax.

Plus raw sql is so much easier to copypasta between different tools when you’re debugging.

And before you say “but sql injection!” – that’s what prepared statements/parametrized queries are for.

djeiejejejej|1 year ago

Same here, but IMO it is related to skill and experience.

Once you get sufficiently familiar with some paradigm the training wheels can come off.

“Raw” SQL is already an abstraction. Over time all the implicit magic will get on your nerves. Trying to shoehorn two completely different worlds into one abstraction is not worth it: you get to learn today’s untransferable funky ORM syntax and idiosyncrasies while losing sight of the actual skill that matters long term which is SQL itself.

I concede however that handling of SQL, the field names, the relations, is annoying. But it’s core to the problem you are probably solving (some form of CRUD). Plumbing is annoying but as a plumber I’d say get used to it instead of wishing to be dancer.

I notice this in other aspects of my work as well. When I switched away trom desktop environment to terminal I had the same feeling. It’s easier, less hassle, less wonky abstractions, more direct. Completely counter to what popular culture is telling me.

wsc981|1 year ago

I've started working on a .NET project that uses EntityFramework and due to some of the magic, I prefer just using raw SQL as well. I've used other ORM solutions in the past as well and I am not a fan ...

But the team chose EF due to it supposedly being easier to integrate with whatever database the customer might be using and that seems like valid reasoning.

Izkata|1 year ago

The awkward part is realizing Django has been this good for well over a decade. The core design hasn't (ever?) changed.

I started using Django on I think version 1.2 or 1.3 in 2011, back when it didn't have database migrations and you had to use a library like South for it. Even then, as an ORM/query language it was apparently better than what other languages have now.

simonw|1 year ago

The design of the ORM changed substantially once, early in Django's history, when the "magic removal branch" landed. There are some notes on the new syntax that introduced here: https://code.djangoproject.com/wiki/RemovingTheMagic#Codecha...

That branch merged on May 1st 2006: https://www.djangoproject.com/weblog/2006/may/01/magicremova...

I've long found Django's commitment to not breaking too much at once inspiring. The release notes and upgrade guides are really solid.

choilive|1 year ago

Django's ORM is acceptable - but I think Rails/ActiveRecord is superior albeit certainly more opinionated. Most likely just my personal bias speaking because Rails was the first web "framework" I cut my teeth on.

wg0|1 year ago

I think Django's ORM is really great but only as long as that's the first thing you have seen.

If you started from Rails and ActiveRecord, you're probably not be very appreciative of Django's ORM.

bitexploder|1 year ago

SQLAlchemy is the best stand alone ORM I have found.

greenie_beans|1 year ago

i've used both. they both have pros/cons. use whatever tool your team is most proficient with/stop wasting your time arguing about which framework is best

malux85|1 year ago

I love the django ORM and then the REST framework on top of that.

Define the object, hook it to a view, use our custom permission class, done.

GET, POST, PATCH, DELETE all urls, filtering, pagination, search, ordering, complex multi-org multi-user object permissions handled automatically. Need custom logic? Just overwrite method.

It’s a productivity superpower, sure there’s a lot to learn but that’s the price you pay for the tools that make you hyper productive

nprateem|1 year ago

Ninja is even better than the REST framework. Practically no boilerplate.

murkt|1 year ago

In 15+ years I’ve only used two orms: Django ORM and SQLAlchemy. I’ve also skimmed docs for many others (some JS orms, etc), and those often look completely unusable.

SQLAlchemy is leagues above and beyond Django ORM. I can’t say I have nightmares from dealing with it, but it certainly was not pleasure. A bit too much magic here and there, not flexible enough and provokes too much bad practices. Re-defining save() methods to do a lot of work, anyone?

The best “orm” that I’ve ever used was not an ORM but a query builder — HoneySQL from Clojure. That one is fantastic. No ORM bullshit, no extra data loaded from DB, no accidental N+1 queries. Not reading docs on how to do a GROUP BY, everything’s just easy to write.

Frankly, we often use SQLAlchemy as just a query builder too. Makes life so much easier.

1propionyl|1 year ago

This is generally my experience as well. I don't love using ORMs but at least Django's is relatively painless and I can generally find the escape hatch I need.

The lack of support until very recently (and it's still lacking) for views is the main knock.

winrid|1 year ago

I agree. Django's ORM is great because it handles the relationships well, where many ORMs barely do the object mapping part well.

I'm rewriting a large Django project in Java (quarkus + jooq), because it's at the point where I need a type system now, but it still has a place in my heart.

BarryMilo|1 year ago

Aren't Django models close enough to types?

JodieBenitez|1 year ago

> I thought they’d all be that good, but no.

I had the "pleasure" to use Doctrine once. Never again !

vandahm|1 year ago

I used Doctrine for a few years, and I remember thinking that it was about 50% awesome and 50% terrible. I wonder what I would think if I came back to it today.