Rust

5981 readers

80 users here now

Welcome to the Rust community! This is a place to discuss about the Rust programming language.

Wormhole

[email protected]

Credits

The icon is a modified version of the official rust logo (changing the colors to a gradient and black background)

founded 1 year ago

MODERATORS

[email protected]

What are you working on this week? (May. 05, 2024) (programming.dev)

submitted 6 months ago by [email protected] to c/[email protected]

15 comments fedilink hide all child comments

Hi rustaceans! What are you working on this week? Did you discover something new, you want to share?

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 6 months ago (1 children)

Ah, I see. So you're expecting to have one object for creation, updates, queries, etc.

I work with something like that at work (SQLAlchemy in Python), and I honestly prefer the Diesel design. I build an object for exactly what I need, so I'll have a handful of related types used for different purposes. In Python, we have a lot of "contains_eager" calls to ensure data isn't lazy loaded, and it really clutters up the code. With Diesel, that's not necessary because I just don't include data that I don't need for that operation. Then again, I'm not generally a fan of ORMs and prefer to write SQL, so that's where I'm coming from.

[–] [email protected] 1 points 6 months ago (1 children)

One of my main concerns with this is the potential for making a lot of separate calls to the DB for a complex data structure. Then again there are trade offs to any architecture.

[–] [email protected] 1 points 6 months ago* (last edited 6 months ago)

Isn't the reverse true? If you make separate models for each query, the ORM knows exactly what data you need, so it can fetch it all as once. If you use generic models, the ORM needs to guess, and many revert to lazy loading if it's not sure (i.e. lots of queries).

That's at least my experience with SQLAlchemy, we put a lot of effort in to reduce those extra calls because we're using complex, generalized structures.