crates/db_views_moderator/src/admin_purge_community_view.rs

   1 use crate::structs::{AdminPurgeCommunityView, ModlogListParams};
   2 use diesel::{result::Error, *};
   3 use lemmy_db_schema::{
   4   newtypes::PersonId,
   5   schema::{admin_purge_community, person},
   6   source::{
   7     moderator::AdminPurgeCommunity,
   8     person::{Person, PersonSafe},
   9   },
  10   traits::{ToSafe, ViewToVec},
  11   utils::limit_and_offset,
  12 };
  13
  14 type AdminPurgeCommunityViewTuple = (AdminPurgeCommunity, Option<PersonSafe>);
  15
  16 impl AdminPurgeCommunityView {
  17   pub fn list(conn: &mut PgConnection, params: ModlogListParams) -> Result<Vec<Self>, Error> {
  18     let admin_person_id_join = params.mod_person_id.unwrap_or(PersonId(-1));
  19     let show_mod_names = !params.hide_modlog_names;
  20     let show_mod_names_expr = show_mod_names.as_sql::<diesel::sql_types::Bool>();
  21
  22     let admin_names_join = admin_purge_community::admin_person_id
  23       .eq(person::id)
  24       .and(show_mod_names_expr.or(person::id.eq(admin_person_id_join)));
  25
  26     let mut query = admin_purge_community::table
  27       .left_join(person::table.on(admin_names_join))
  28       .select((
  29         admin_purge_community::all_columns,
  30         Person::safe_columns_tuple().nullable(),
  31       ))
  32       .into_boxed();
  33
  34     if let Some(admin_person_id) = params.mod_person_id {
  35       query = query.filter(admin_purge_community::admin_person_id.eq(admin_person_id));
  36     };
  37
  38     let (limit, offset) = limit_and_offset(params.page, params.limit)?;
  39
  40     let res = query
  41       .limit(limit)
  42       .offset(offset)
  43       .order_by(admin_purge_community::when_.desc())
  44       .load::<AdminPurgeCommunityViewTuple>(conn)?;
  45
  46     let results = Self::from_tuple_to_vec(res);
  47     Ok(results)
  48   }
  49 }
  50
  51 impl ViewToVec for AdminPurgeCommunityView {
  52   type DbTuple = AdminPurgeCommunityViewTuple;
  53   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  54     items
  55       .into_iter()
  56       .map(|a| Self {
  57         admin_purge_community: a.0,
  58         admin: a.1,
  59       })
  60       .collect::<Vec<Self>>()
  61   }
  62 }