use crate::structs::{ModBanView, ModlogListParams}; use diesel::{ result::Error, BoolExpressionMethods, ExpressionMethods, IntoSql, JoinOnDsl, NullableExpressionMethods, QueryDsl, }; use diesel_async::RunQueryDsl; use lemmy_db_schema::{ newtypes::PersonId, schema::{mod_ban, person}, source::{moderator::ModBan, person::Person}, traits::JoinView, utils::{get_conn, limit_and_offset, DbPool}, }; type ModBanViewTuple = (ModBan, Option, Person); impl ModBanView { pub async fn list(pool: &DbPool, params: ModlogListParams) -> Result, Error> { let conn = &mut get_conn(pool).await?; let person_alias_1 = diesel::alias!(person as person1); let admin_person_id_join = params.mod_person_id.unwrap_or(PersonId(-1)); let show_mod_names = !params.hide_modlog_names; let show_mod_names_expr = show_mod_names.as_sql::(); let admin_names_join = mod_ban::mod_person_id .eq(person::id) .and(show_mod_names_expr.or(person::id.eq(admin_person_id_join))); let mut query = mod_ban::table .left_join(person::table.on(admin_names_join)) .inner_join(person_alias_1.on(mod_ban::other_person_id.eq(person_alias_1.field(person::id)))) .select(( mod_ban::all_columns, person::all_columns.nullable(), person_alias_1.fields(person::all_columns), )) .into_boxed(); if let Some(mod_person_id) = params.mod_person_id { query = query.filter(mod_ban::mod_person_id.eq(mod_person_id)); }; if let Some(other_person_id) = params.other_person_id { query = query.filter(person_alias_1.field(person::id).eq(other_person_id)); }; let (limit, offset) = limit_and_offset(params.page, params.limit)?; let res = query .limit(limit) .offset(offset) .order_by(mod_ban::when_.desc()) .load::(conn) .await?; let results = res.into_iter().map(Self::from_tuple).collect(); Ok(results) } } impl JoinView for ModBanView { type JoinTuple = ModBanViewTuple; fn from_tuple(a: Self::JoinTuple) -> Self { Self { mod_ban: a.0, moderator: a.1, banned_person: a.2, } } }