crates/db_views_moderator/src/admin_purge_post_view.rs

   1 use crate::structs::{AdminPurgePostView, ModlogListParams};
   2 use diesel::{result::Error, *};
   3 use lemmy_db_schema::{
   4   newtypes::PersonId,
   5   schema::{admin_purge_post, community, person},
   6   source::{
   7     community::{Community, CommunitySafe},
   8     moderator::AdminPurgePost,
   9     person::{Person, PersonSafe},
  10   },
  11   traits::{ToSafe, ViewToVec},
  12   utils::limit_and_offset,
  13 };
  14
  15 type AdminPurgePostViewTuple = (AdminPurgePost, Option<PersonSafe>, CommunitySafe);
  16
  17 impl AdminPurgePostView {
  18   pub fn list(conn: &PgConnection, params: ModlogListParams) -> Result<Vec<Self>, Error> {
  19     let admin_person_id_join = params.mod_person_id.unwrap_or(PersonId(-1));
  20     let show_mod_names = !params.hide_modlog_names;
  21     let show_mod_names_expr = show_mod_names.as_sql::<diesel::sql_types::Bool>();
  22
  23     let admin_names_join = admin_purge_post::admin_person_id
  24       .eq(person::id)
  25       .and(show_mod_names_expr.or(person::id.eq(admin_person_id_join)));
  26     let mut query = admin_purge_post::table
  27       .left_join(person::table.on(admin_names_join))
  28       .inner_join(community::table)
  29       .select((
  30         admin_purge_post::all_columns,
  31         Person::safe_columns_tuple().nullable(),
  32         Community::safe_columns_tuple(),
  33       ))
  34       .into_boxed();
  35
  36     if let Some(admin_person_id) = params.mod_person_id {
  37       query = query.filter(admin_purge_post::admin_person_id.eq(admin_person_id));
  38     };
  39
  40     let (limit, offset) = limit_and_offset(params.page, params.limit)?;
  41
  42     let res = query
  43       .limit(limit)
  44       .offset(offset)
  45       .order_by(admin_purge_post::when_.desc())
  46       .load::<AdminPurgePostViewTuple>(conn)?;
  47
  48     let results = Self::from_tuple_to_vec(res);
  49     Ok(results)
  50   }
  51 }
  52
  53 impl ViewToVec for AdminPurgePostView {
  54   type DbTuple = AdminPurgePostViewTuple;
  55   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  56     items
  57       .into_iter()
  58       .map(|a| Self {
  59         admin_purge_post: a.0,
  60         admin: a.1,
  61         community: a.2,
  62       })
  63       .collect::<Vec<Self>>()
  64   }
  65 }