-use diesel::{result::Error, *};
-use lemmy_db_queries::{ToSafe, ViewToVec};
+use crate::structs::CommunityFollowerView;
+use diesel::{
+ dsl::{count_star, not},
+ result::Error,
+ sql_function,
+ ExpressionMethods,
+ QueryDsl,
+};
+use diesel_async::RunQueryDsl;
use lemmy_db_schema::{
- schema::{community, community_follower, user_},
- source::{
- community::{Community, CommunitySafe},
- user::{UserSafe, User_},
- },
+ newtypes::{CommunityId, DbUrl, PersonId},
+ schema::{community, community_follower, person},
+ source::{community::Community, person::Person},
+ traits::JoinView,
+ utils::{get_conn, DbPool},
};
-use serde::Serialize;
-#[derive(Debug, Serialize, Clone)]
-pub struct CommunityFollowerView {
- pub community: CommunitySafe,
- pub follower: UserSafe,
-}
+type CommunityFollowerViewTuple = (Community, Person);
-type CommunityFollowerViewTuple = (CommunitySafe, UserSafe);
+sql_function!(fn coalesce(x: diesel::sql_types::Nullable<diesel::sql_types::Text>, y: diesel::sql_types::Text) -> diesel::sql_types::Text);
impl CommunityFollowerView {
- pub fn for_community(conn: &PgConnection, community_id: i32) -> Result<Vec<Self>, Error> {
+ pub async fn get_community_follower_inboxes(
+ pool: &mut DbPool<'_>,
+ community_id: CommunityId,
+ ) -> Result<Vec<DbUrl>, Error> {
+ let conn = &mut get_conn(pool).await?;
+ let res = community_follower::table
+ .filter(community_follower::community_id.eq(community_id))
+ .filter(not(person::local))
+ .inner_join(person::table)
+ .select(coalesce(person::shared_inbox_url, person::inbox_url))
+ .distinct()
+ .load::<DbUrl>(conn)
+ .await?;
+
+ Ok(res)
+ }
+ pub async fn count_community_followers(
+ pool: &mut DbPool<'_>,
+ community_id: CommunityId,
+ ) -> Result<i64, Error> {
+ let conn = &mut get_conn(pool).await?;
let res = community_follower::table
- .inner_join(community::table)
- .inner_join(user_::table)
- .select((Community::safe_columns_tuple(), User_::safe_columns_tuple()))
.filter(community_follower::community_id.eq(community_id))
- .order_by(community_follower::published)
- .load::<CommunityFollowerViewTuple>(conn)?;
+ .select(count_star())
+ .first::<i64>(conn)
+ .await?;
- Ok(Self::from_tuple_to_vec(res))
+ Ok(res)
}
- pub fn for_user(conn: &PgConnection, user_id: i32) -> Result<Vec<Self>, Error> {
+ pub async fn for_person(pool: &mut DbPool<'_>, person_id: PersonId) -> Result<Vec<Self>, Error> {
+ let conn = &mut get_conn(pool).await?;
let res = community_follower::table
.inner_join(community::table)
- .inner_join(user_::table)
- .select((Community::safe_columns_tuple(), User_::safe_columns_tuple()))
- .filter(community_follower::user_id.eq(user_id))
- .order_by(community_follower::published)
- .load::<CommunityFollowerViewTuple>(conn)?;
+ .inner_join(person::table)
+ .select((community::all_columns, person::all_columns))
+ .filter(community_follower::person_id.eq(person_id))
+ .filter(community::deleted.eq(false))
+ .filter(community::removed.eq(false))
+ .order_by(community::title)
+ .load::<CommunityFollowerViewTuple>(conn)
+ .await?;
- Ok(Self::from_tuple_to_vec(res))
+ Ok(res.into_iter().map(Self::from_tuple).collect())
}
}
-impl ViewToVec for CommunityFollowerView {
- type DbTuple = CommunityFollowerViewTuple;
- fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
- items
- .iter()
- .map(|a| Self {
- community: a.0.to_owned(),
- follower: a.1.to_owned(),
- })
- .collect::<Vec<Self>>()
+impl JoinView for CommunityFollowerView {
+ type JoinTuple = CommunityFollowerViewTuple;
+ fn from_tuple(a: Self::JoinTuple) -> Self {
+ Self {
+ community: a.0,
+ follower: a.1,
+ }
}
}