lemmy/crates/db_schema/src/impls/local_user_language.rs
Dessalines c9f1407429
Diesel 2.0.0 upgrade (#2452)
* Initial commit to bump diesel to 2.0.0-rc.0 and see what happens

* Add chrono feature from diesel

* db_schema crate is close to building?

* Upgrade diesel-derive-newtype

* Mostly modifying references to connections to be mutable ones; also used
new way to do migrations as suggested by the migration guide; a lot more
compiles now, though I can't figure out this tricky ToSql issue at the
moment

* Running clippy --fix

* Trying to fix drone clippy 1

* Fix clippy

* Upgrade clux-musl

* Trying to fix drone clippy 2

* Trying to fix drone clippy 3

* Trying to fix drone clippy 5

* Adding diesel table aliases, removing sql view hack. Fixes #2101

Co-authored-by: Steven Chu <stevenc1@gmail.com>
Co-authored-by: Nutomic <me@nutomic.com>
2022-09-26 14:09:32 +00:00

42 lines
1.2 KiB
Rust

use crate::{
newtypes::{LanguageId, LocalUserId},
source::{language::Language, local_user_language::*},
};
use diesel::{result::Error, PgConnection, RunQueryDsl, *};
impl LocalUserLanguage {
/// Update the user's languages.
///
/// If no language_id vector is given, it will show all languages
pub fn update_user_languages(
conn: &mut PgConnection,
language_ids: Option<Vec<LanguageId>>,
for_local_user_id: LocalUserId,
) -> Result<(), Error> {
use crate::schema::local_user_language::dsl::*;
// If no language is given, read all languages
let lang_ids = language_ids.unwrap_or(
Language::read_all(conn)?
.into_iter()
.map(|l| l.id)
.collect(),
);
conn.build_transaction().read_write().run(|conn| {
// Clear the current user languages
delete(local_user_language.filter(local_user_id.eq(for_local_user_id))).execute(conn)?;
for l in lang_ids {
let form = LocalUserLanguageForm {
local_user_id: for_local_user_id,
language_id: l,
};
insert_into(local_user_language)
.values(form)
.get_result::<Self>(conn)?;
}
Ok(())
})
}
}