use diesel::{dsl::*, result::Error, *}; use lemmy_db_schema::{ aggregates::person_aggregates::PersonAggregates, fuzzy_search, limit_and_offset, newtypes::PersonId, schema::{person, person_aggregates}, source::person::{Person, PersonSafe}, traits::{MaybeOptional, ToSafe, ViewToVec}, SortType, }; use serde::{Deserialize, Serialize}; #[derive(Debug, Serialize, Deserialize, Clone)] pub struct PersonViewSafe { pub person: PersonSafe, pub counts: PersonAggregates, } type PersonViewSafeTuple = (PersonSafe, PersonAggregates); impl PersonViewSafe { pub fn read(conn: &PgConnection, person_id: PersonId) -> Result { let (person, counts) = person::table .find(person_id) .inner_join(person_aggregates::table) .select((Person::safe_columns_tuple(), person_aggregates::all_columns)) .first::(conn)?; Ok(Self { person, counts }) } pub fn admins(conn: &PgConnection) -> Result, Error> { let admins = person::table .inner_join(person_aggregates::table) .select((Person::safe_columns_tuple(), person_aggregates::all_columns)) .filter(person::admin.eq(true)) .order_by(person::published) .load::(conn)?; Ok(Self::from_tuple_to_vec(admins)) } pub fn banned(conn: &PgConnection) -> Result, Error> { let banned = person::table .inner_join(person_aggregates::table) .select((Person::safe_columns_tuple(), person_aggregates::all_columns)) .filter( person::banned.eq(true).and( person::ban_expires .is_null() .or(person::ban_expires.gt(now)), ), ) .load::(conn)?; Ok(Self::from_tuple_to_vec(banned)) } } pub struct PersonQueryBuilder<'a> { conn: &'a PgConnection, sort: Option, search_term: Option, page: Option, limit: Option, } impl<'a> PersonQueryBuilder<'a> { pub fn create(conn: &'a PgConnection) -> Self { PersonQueryBuilder { conn, search_term: None, sort: None, page: None, limit: None, } } pub fn sort>(mut self, sort: T) -> Self { self.sort = sort.get_optional(); self } pub fn search_term>(mut self, search_term: T) -> Self { self.search_term = search_term.get_optional(); self } pub fn page>(mut self, page: T) -> Self { self.page = page.get_optional(); self } pub fn limit>(mut self, limit: T) -> Self { self.limit = limit.get_optional(); self } pub fn list(self) -> Result, Error> { let mut query = person::table .inner_join(person_aggregates::table) .select((Person::safe_columns_tuple(), person_aggregates::all_columns)) .into_boxed(); if let Some(search_term) = self.search_term { query = query.filter(person::name.ilike(fuzzy_search(&search_term))); } query = match self.sort.unwrap_or(SortType::Hot) { SortType::Hot => query .order_by(person_aggregates::comment_score.desc()) .then_order_by(person::published.desc()), SortType::Active => query .order_by(person_aggregates::comment_score.desc()) .then_order_by(person::published.desc()), SortType::New | SortType::MostComments | SortType::NewComments => { query.order_by(person::published.desc()) } SortType::TopAll => query.order_by(person_aggregates::comment_score.desc()), SortType::TopYear => query .filter(person::published.gt(now - 1.years())) .order_by(person_aggregates::comment_score.desc()), SortType::TopMonth => query .filter(person::published.gt(now - 1.months())) .order_by(person_aggregates::comment_score.desc()), SortType::TopWeek => query .filter(person::published.gt(now - 1.weeks())) .order_by(person_aggregates::comment_score.desc()), SortType::TopDay => query .filter(person::published.gt(now - 1.days())) .order_by(person_aggregates::comment_score.desc()), }; let (limit, offset) = limit_and_offset(self.page, self.limit); query = query.limit(limit).offset(offset); let res = query.load::(self.conn)?; Ok(PersonViewSafe::from_tuple_to_vec(res)) } } impl ViewToVec for PersonViewSafe { type DbTuple = PersonViewSafeTuple; fn from_tuple_to_vec(items: Vec) -> Vec { items .iter() .map(|a| Self { person: a.0.to_owned(), counts: a.1.to_owned(), }) .collect::>() } }