99 lines
3.2 KiB
Rust
99 lines
3.2 KiB
Rust
use crate::structs::CommunityModeratorView;
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use diesel::{dsl::exists, result::Error, select, ExpressionMethods, QueryDsl};
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use diesel_async::RunQueryDsl;
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use lemmy_db_schema::{
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newtypes::{CommunityId, PersonId},
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schema::{community, community_moderator, person},
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utils::{get_conn, DbPool},
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CommunityVisibility,
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};
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impl CommunityModeratorView {
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pub async fn is_community_moderator(
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pool: &mut DbPool<'_>,
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find_community_id: CommunityId,
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find_person_id: PersonId,
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) -> Result<bool, Error> {
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use lemmy_db_schema::schema::community_moderator::dsl::{
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community_id,
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community_moderator,
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person_id,
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};
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let conn = &mut get_conn(pool).await?;
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select(exists(
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community_moderator
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.filter(community_id.eq(find_community_id))
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.filter(person_id.eq(find_person_id)),
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))
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.get_result::<bool>(conn)
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.await
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}
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pub(crate) async fn is_community_moderator_of_any(
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pool: &mut DbPool<'_>,
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find_person_id: PersonId,
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) -> Result<bool, Error> {
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use lemmy_db_schema::schema::community_moderator::dsl::{community_moderator, person_id};
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let conn = &mut get_conn(pool).await?;
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select(exists(
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community_moderator.filter(person_id.eq(find_person_id)),
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))
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.get_result::<bool>(conn)
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.await
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}
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pub async fn for_community(
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pool: &mut DbPool<'_>,
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community_id: CommunityId,
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) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
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community_moderator::table
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.inner_join(community::table)
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.inner_join(person::table)
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.filter(community_moderator::community_id.eq(community_id))
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.select((community::all_columns, person::all_columns))
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.order_by(community_moderator::published)
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.load::<CommunityModeratorView>(conn)
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.await
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}
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pub async fn for_person(
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pool: &mut DbPool<'_>,
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person_id: PersonId,
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is_authenticated: bool,
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) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
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let mut query = community_moderator::table
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.inner_join(community::table)
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.inner_join(person::table)
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.filter(community_moderator::person_id.eq(person_id))
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.filter(community::deleted.eq(false))
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.filter(community::removed.eq(false))
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.select((community::all_columns, person::all_columns))
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.into_boxed();
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if !is_authenticated {
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query = query.filter(community::visibility.eq(CommunityVisibility::Public));
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}
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query.load::<CommunityModeratorView>(conn).await
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}
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/// Finds all communities first mods / creators
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/// Ideally this should be a group by, but diesel doesn't support it yet
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pub async fn get_community_first_mods(pool: &mut DbPool<'_>) -> Result<Vec<Self>, Error> {
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let conn = &mut get_conn(pool).await?;
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community_moderator::table
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.inner_join(community::table)
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.inner_join(person::table)
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.select((community::all_columns, person::all_columns))
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// A hacky workaround instead of group_bys
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// https://stackoverflow.com/questions/24042359/how-to-join-only-one-row-in-joined-table-with-postgres
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.distinct_on(community_moderator::community_id)
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.order_by((
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community_moderator::community_id,
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community_moderator::person_id,
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))
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.load::<CommunityModeratorView>(conn)
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.await
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}
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}
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