lemmy/crates/db_schema/src/impls/language.rs
Nutomic 2ef0f8f5f8
implement language tags for site/community in db and api (#2434)
* implement language tags for site/community in db and api

* add api checks for valid languages

* during db migration, update existing users, sites, communities to have all languages enabled

* init new users/communities with site languages (not all languages)

* federate site/community languages

* fix tests

* when updating site languages, limit community languages to this subset

also, when making a new post and subset of user lang, community lang
contains only one item, use that as post lang

* add tests for actor_language db functions

* include language list in siteview/communityview

* Fix some of the review comments

* Some more review changes

* Add todo about boxed query

* Add default_post_language to GetCommunityResponse
2022-10-06 14:27:58 -04:00

50 lines
1.4 KiB
Rust

use crate::{diesel::ExpressionMethods, newtypes::LanguageId, source::language::Language};
use diesel::{result::Error, PgConnection, QueryDsl, RunQueryDsl};
impl Language {
pub fn read_all(conn: &mut PgConnection) -> Result<Vec<Language>, Error> {
use crate::schema::language::dsl::*;
language.load::<Self>(conn)
}
pub fn read_from_id(conn: &mut PgConnection, id_: LanguageId) -> Result<Language, Error> {
use crate::schema::language::dsl::*;
language.filter(id.eq(id_)).first::<Self>(conn)
}
pub fn read_id_from_code(conn: &mut PgConnection, code_: &str) -> Result<LanguageId, Error> {
use crate::schema::language::dsl::*;
Ok(language.filter(code.eq(code_)).first::<Self>(conn)?.id)
}
pub fn read_id_from_code_opt(
conn: &mut PgConnection,
code_: Option<&str>,
) -> Result<Option<LanguageId>, Error> {
if let Some(code_) = code_ {
Ok(Some(Language::read_id_from_code(conn, code_)?))
} else {
Ok(None)
}
}
}
#[cfg(test)]
mod tests {
use crate::{source::language::Language, utils::establish_unpooled_connection};
use serial_test::serial;
#[test]
#[serial]
fn test_languages() {
let conn = &mut establish_unpooled_connection();
let all = Language::read_all(conn).unwrap();
assert_eq!(184, all.len());
assert_eq!("ak", all[5].code);
assert_eq!("lv", all[99].code);
assert_eq!("yi", all[179].code);
}
}