-use diesel::{result::Error, *};
-use lemmy_db_queries::{ToSafe, ViewToVec};
+use crate::structs::CommunityModeratorView;
+use diesel::{dsl::exists, result::Error, select, ExpressionMethods, QueryDsl};
+use diesel_async::RunQueryDsl;
use lemmy_db_schema::{
+ newtypes::{CommunityId, PersonId},
schema::{community, community_moderator, person},
- source::{
- community::{Community, CommunitySafe},
- person::{Person, PersonSafe},
- },
+ source::{community::Community, person::Person},
+ traits::JoinView,
+ utils::{get_conn, DbPool},
};
-use serde::Serialize;
-#[derive(Debug, Serialize, Clone)]
-pub struct CommunityModeratorView {
- pub community: CommunitySafe,
- pub moderator: PersonSafe,
-}
-
-type CommunityModeratorViewTuple = (CommunitySafe, PersonSafe);
+type CommunityModeratorViewTuple = (Community, Person);
impl CommunityModeratorView {
- pub fn for_community(conn: &PgConnection, community_id: i32) -> Result<Vec<Self>, Error> {
+ pub async fn is_community_moderator(
+ pool: &mut DbPool<'_>,
+ find_community_id: CommunityId,
+ find_person_id: PersonId,
+ ) -> Result<bool, Error> {
+ use lemmy_db_schema::schema::community_moderator::dsl::{
+ community_id,
+ community_moderator,
+ person_id,
+ };
+ let conn = &mut get_conn(pool).await?;
+ select(exists(
+ community_moderator
+ .filter(community_id.eq(find_community_id))
+ .filter(person_id.eq(find_person_id)),
+ ))
+ .get_result::<bool>(conn)
+ .await
+ }
+ pub async fn for_community(
+ pool: &mut DbPool<'_>,
+ community_id: CommunityId,
+ ) -> Result<Vec<Self>, Error> {
+ let conn = &mut get_conn(pool).await?;
let res = community_moderator::table
.inner_join(community::table)
.inner_join(person::table)
- .select((
- Community::safe_columns_tuple(),
- Person::safe_columns_tuple(),
- ))
.filter(community_moderator::community_id.eq(community_id))
+ .select((community::all_columns, person::all_columns))
.order_by(community_moderator::published)
- .load::<CommunityModeratorViewTuple>(conn)?;
+ .load::<CommunityModeratorViewTuple>(conn)
+ .await?;
- Ok(Self::from_tuple_to_vec(res))
+ Ok(res.into_iter().map(Self::from_tuple).collect())
}
- pub fn for_person(conn: &PgConnection, person_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_moderator::table
.inner_join(community::table)
.inner_join(person::table)
- .select((
- Community::safe_columns_tuple(),
- Person::safe_columns_tuple(),
- ))
.filter(community_moderator::person_id.eq(person_id))
- .order_by(community_moderator::published)
- .load::<CommunityModeratorViewTuple>(conn)?;
+ .filter(community::deleted.eq(false))
+ .filter(community::removed.eq(false))
+ .select((community::all_columns, person::all_columns))
+ .load::<CommunityModeratorViewTuple>(conn)
+ .await?;
+
+ Ok(res.into_iter().map(Self::from_tuple).collect())
+ }
+
+ /// Finds all communities first mods / creators
+ /// Ideally this should be a group by, but diesel doesn't support it yet
+ pub async fn get_community_first_mods(pool: &mut DbPool<'_>) -> Result<Vec<Self>, Error> {
+ let conn = &mut get_conn(pool).await?;
+ let res = community_moderator::table
+ .inner_join(community::table)
+ .inner_join(person::table)
+ .select((community::all_columns, person::all_columns))
+ // A hacky workaround instead of group_bys
+ // https://stackoverflow.com/questions/24042359/how-to-join-only-one-row-in-joined-table-with-postgres
+ .distinct_on(community_moderator::community_id)
+ .order_by((
+ community_moderator::community_id,
+ community_moderator::person_id,
+ ))
+ .load::<CommunityModeratorViewTuple>(conn)
+ .await?;
- Ok(Self::from_tuple_to_vec(res))
+ Ok(res.into_iter().map(Self::from_tuple).collect())
}
}
-impl ViewToVec for CommunityModeratorView {
- type DbTuple = CommunityModeratorViewTuple;
- fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
- items
- .iter()
- .map(|a| Self {
- community: a.0.to_owned(),
- moderator: a.1.to_owned(),
- })
- .collect::<Vec<Self>>()
+impl JoinView for CommunityModeratorView {
+ type JoinTuple = CommunityModeratorViewTuple;
+ fn from_tuple(a: Self::JoinTuple) -> Self {
+ Self {
+ community: a.0,
+ moderator: a.1,
+ }
}
}