crates/db_views_moderator/src/mod_ban_from_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_ban_from_community, person, person_alias_1},
   5   source::{
   6     community::{Community, CommunitySafe},
   7     moderator::ModBanFromCommunity,
   8     person::{PersonAlias1, PersonSafe, PersonSafeAlias1, Person},
   9   },
  10 };
  11 use serde::Serialize;
  12
  13 #[derive(Debug, Serialize, Clone)]
  14 pub struct ModBanFromCommunityView {
  15   pub mod_ban_from_community: ModBanFromCommunity,
  16   pub moderator: PersonSafe,
  17   pub community: CommunitySafe,
  18   pub banned_person: PersonSafeAlias1,
  19 }
  20
  21 type ModBanFromCommunityViewTuple = (ModBanFromCommunity, PersonSafe, CommunitySafe, PersonSafeAlias1);
  22
  23 impl ModBanFromCommunityView {
  24   pub fn list(
  25     conn: &PgConnection,
  26     community_id: Option<i32>,
  27     mod_person_id: Option<i32>,
  28     page: Option<i64>,
  29     limit: Option<i64>,
  30   ) -> Result<Vec<Self>, Error> {
  31     let mut query = mod_ban_from_community::table
  32       .inner_join(person::table.on(mod_ban_from_community::mod_person_id.eq(person::id)))
  33       .inner_join(community::table)
  34       .inner_join(
  35         person_alias_1::table.on(mod_ban_from_community::other_person_id.eq(person_alias_1::id)),
  36       )
  37       .select((
  38         mod_ban_from_community::all_columns,
  39         Person::safe_columns_tuple(),
  40         Community::safe_columns_tuple(),
  41         PersonAlias1::safe_columns_tuple(),
  42       ))
  43       .into_boxed();
  44
  45     if let Some(mod_person_id) = mod_person_id {
  46       query = query.filter(mod_ban_from_community::mod_person_id.eq(mod_person_id));
  47     };
  48
  49     if let Some(community_id) = community_id {
  50       query = query.filter(mod_ban_from_community::community_id.eq(community_id));
  51     };
  52
  53     let (limit, offset) = limit_and_offset(page, limit);
  54
  55     let res = query
  56       .limit(limit)
  57       .offset(offset)
  58       .order_by(mod_ban_from_community::when_.desc())
  59       .load::<ModBanFromCommunityViewTuple>(conn)?;
  60
  61     Ok(Self::from_tuple_to_vec(res))
  62   }
  63 }
  64
  65 impl ViewToVec for ModBanFromCommunityView {
  66   type DbTuple = ModBanFromCommunityViewTuple;
  67   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  68     items
  69       .iter()
  70       .map(|a| Self {
  71         mod_ban_from_community: a.0.to_owned(),
  72         moderator: a.1.to_owned(),
  73         community: a.2.to_owned(),
  74         banned_person: a.3.to_owned(),
  75       })
  76       .collect::<Vec<Self>>()
  77   }
  78 }