crates/db_views_moderator/src/admin_purge_person_view.rs

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