Diesel-async usage example

[alexted]

I think it's useful nowadays to have a code example like this as a starting point.

[alexted]

@robjtede could you help resolve the problem of installing the required libpq and libsqlite3 system libraries on ci-runners?
https://github.com/actix/examples/actions/runs/12901822321/job/35974472904?pr=992#step:5:376

[robjtede]

Yep I'll check this out later.

[robjtede]

please feel free to squash and/or perform a rebase/force push on your branch

please try not to update unrelated workspace deps in the future, the conflicts have become very complicated to resolve cleanly as a result

[alexted]

Done

[alexted]

@robjtede What will we do with the tests? Will you mark them as ignored or add the small (alpine?) PostgreSQL instance setup to the CI/CD pipeline?

[robjtede]

Maybe we could mark as ignored? Alternatively rewrite this to use sqlite which is how we've gotten around needing DBs running in CI with the other examples.

[alexted]

Diesel-async support only PostgreSQL and MySQL.
Unfortunately SQLite doesn't provide async interface.

[alexted]

@robjtede okay, it's done.

[robjtede]

good addition, thanks 👍🏻

i may make some tweaks once merged so as not to bore you with nits