crates/db_views_moderator/src/mod_remove_community_view.rs

   1 use diesel::{result::Error, *};
   2 use lemmy_db_queries::{limit_and_offset, ToSafe, ViewToVec};
   3 use lemmy_db_schema::{
   4   schema::{community, mod_remove_community, person},
   5   source::{
   6     community::{Community, CommunitySafe},
   7     moderator::ModRemoveCommunity,
   8     person::{Person, PersonSafe},
   9   },
  10   PersonId,
  11 };
  12 use serde::Serialize;
  13
  14 #[derive(Debug, Serialize, Clone)]
  15 pub struct ModRemoveCommunityView {
  16   pub mod_remove_community: ModRemoveCommunity,
  17   pub moderator: PersonSafe,
  18   pub community: CommunitySafe,
  19 }
  20
  21 type ModRemoveCommunityTuple = (ModRemoveCommunity, PersonSafe, CommunitySafe);
  22
  23 impl ModRemoveCommunityView {
  24   pub fn list(
  25     conn: &PgConnection,
  26     mod_person_id: Option<PersonId>,
  27     page: Option<i64>,
  28     limit: Option<i64>,
  29   ) -> Result<Vec<Self>, Error> {
  30     let mut query = mod_remove_community::table
  31       .inner_join(person::table)
  32       .inner_join(community::table)
  33       .select((
  34         mod_remove_community::all_columns,
  35         Person::safe_columns_tuple(),
  36         Community::safe_columns_tuple(),
  37       ))
  38       .into_boxed();
  39
  40     if let Some(mod_person_id) = mod_person_id {
  41       query = query.filter(mod_remove_community::mod_person_id.eq(mod_person_id));
  42     };
  43
  44     let (limit, offset) = limit_and_offset(page, limit);
  45
  46     let res = query
  47       .limit(limit)
  48       .offset(offset)
  49       .order_by(mod_remove_community::when_.desc())
  50       .load::<ModRemoveCommunityTuple>(conn)?;
  51
  52     Ok(Self::from_tuple_to_vec(res))
  53   }
  54 }
  55
  56 impl ViewToVec for ModRemoveCommunityView {
  57   type DbTuple = ModRemoveCommunityTuple;
  58   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  59     items
  60       .iter()
  61       .map(|a| Self {
  62         mod_remove_community: a.0.to_owned(),
  63         moderator: a.1.to_owned(),
  64         community: a.2.to_owned(),
  65       })
  66       .collect::<Vec<Self>>()
  67   }
  68 }