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 };
  11 use serde::Serialize;
  12
  13 #[derive(Debug, Serialize, Clone)]
  14 pub struct ModRemoveCommunityView {
  15   pub mod_remove_community: ModRemoveCommunity,
  16   pub moderator: PersonSafe,
  17   pub community: CommunitySafe,
  18 }
  19
  20 type ModRemoveCommunityTuple = (ModRemoveCommunity, PersonSafe, CommunitySafe);
  21
  22 impl ModRemoveCommunityView {
  23   pub fn list(
  24     conn: &PgConnection,
  25     mod_person_id: Option<i32>,
  26     page: Option<i64>,
  27     limit: Option<i64>,
  28   ) -> Result<Vec<Self>, Error> {
  29     let mut query = mod_remove_community::table
  30       .inner_join(person::table)
  31       .inner_join(community::table)
  32       .select((
  33         mod_remove_community::all_columns,
  34         Person::safe_columns_tuple(),
  35         Community::safe_columns_tuple(),
  36       ))
  37       .into_boxed();
  38
  39     if let Some(mod_person_id) = mod_person_id {
  40       query = query.filter(mod_remove_community::mod_person_id.eq(mod_person_id));
  41     };
  42
  43     let (limit, offset) = limit_and_offset(page, limit);
  44
  45     let res = query
  46       .limit(limit)
  47       .offset(offset)
  48       .order_by(mod_remove_community::when_.desc())
  49       .load::<ModRemoveCommunityTuple>(conn)?;
  50
  51     Ok(Self::from_tuple_to_vec(res))
  52   }
  53 }
  54
  55 impl ViewToVec for ModRemoveCommunityView {
  56   type DbTuple = ModRemoveCommunityTuple;
  57   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  58     items
  59       .iter()
  60       .map(|a| Self {
  61         mod_remove_community: a.0.to_owned(),
  62         moderator: a.1.to_owned(),
  63         community: a.2.to_owned(),
  64       })
  65       .collect::<Vec<Self>>()
  66   }
  67 }