lemmy/crates/db_views_actor/src/community_follower_view.rs

62 lines
1.7 KiB
Rust
Raw Normal View History

use crate::structs::CommunityFollowerView;
2020-12-06 04:37:16 +00:00
use diesel::{result::Error, *};
use lemmy_db_schema::{
2021-10-16 13:33:38 +00:00
newtypes::{CommunityId, PersonId},
2021-03-10 22:33:55 +00:00
schema::{community, community_follower, person},
2020-12-21 12:28:12 +00:00
source::{
community::{Community, CommunitySafe},
2021-03-11 04:43:11 +00:00
person::{Person, PersonSafe},
2020-12-21 12:28:12 +00:00
},
2021-10-16 13:33:38 +00:00
traits::{ToSafe, ViewToVec},
};
2020-12-06 04:37:16 +00:00
type CommunityFollowerViewTuple = (CommunitySafe, PersonSafe);
2020-12-11 01:39:42 +00:00
2020-12-06 04:37:16 +00:00
impl CommunityFollowerView {
pub fn for_community(
conn: &mut PgConnection,
community_id: CommunityId,
) -> Result<Vec<Self>, Error> {
2020-12-06 04:37:16 +00:00
let res = community_follower::table
.inner_join(community::table)
2021-03-10 22:33:55 +00:00
.inner_join(person::table)
2021-03-11 04:43:11 +00:00
.select((
Community::safe_columns_tuple(),
Person::safe_columns_tuple(),
))
.filter(community_follower::community_id.eq(community_id))
.order_by(community::title)
2020-12-11 01:39:42 +00:00
.load::<CommunityFollowerViewTuple>(conn)?;
2020-12-06 04:37:16 +00:00
Ok(Self::from_tuple_to_vec(res))
2020-12-06 04:37:16 +00:00
}
pub fn for_person(conn: &mut PgConnection, person_id: PersonId) -> Result<Vec<Self>, Error> {
2020-12-06 04:37:16 +00:00
let res = community_follower::table
.inner_join(community::table)
2021-03-10 22:33:55 +00:00
.inner_join(person::table)
2021-03-11 04:43:11 +00:00
.select((
Community::safe_columns_tuple(),
Person::safe_columns_tuple(),
))
2021-03-10 22:33:55 +00:00
.filter(community_follower::person_id.eq(person_id))
.order_by(community::title)
2020-12-11 01:39:42 +00:00
.load::<CommunityFollowerViewTuple>(conn)?;
2020-12-06 04:37:16 +00:00
Ok(Self::from_tuple_to_vec(res))
2020-12-06 04:37:16 +00:00
}
}
2020-12-11 01:39:42 +00:00
impl ViewToVec for CommunityFollowerView {
type DbTuple = CommunityFollowerViewTuple;
fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
items
.into_iter()
2020-12-11 01:39:42 +00:00
.map(|a| Self {
community: a.0,
follower: a.1,
2020-12-11 01:39:42 +00:00
})
.collect::<Vec<Self>>()
}
2020-12-06 04:37:16 +00:00
}