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::{Person, PersonAlias1, PersonSafe, PersonSafeAlias1},
   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 = (
  22   ModBanFromCommunity,
  23   PersonSafe,
  24   CommunitySafe,
  25   PersonSafeAlias1,
  26 );
  27
  28 impl ModBanFromCommunityView {
  29   pub fn list(
  30     conn: &PgConnection,
  31     community_id: Option<i32>,
  32     mod_person_id: Option<i32>,
  33     page: Option<i64>,
  34     limit: Option<i64>,
  35   ) -> Result<Vec<Self>, Error> {
  36     let mut query = mod_ban_from_community::table
  37       .inner_join(person::table.on(mod_ban_from_community::mod_person_id.eq(person::id)))
  38       .inner_join(community::table)
  39       .inner_join(
  40         person_alias_1::table.on(mod_ban_from_community::other_person_id.eq(person_alias_1::id)),
  41       )
  42       .select((
  43         mod_ban_from_community::all_columns,
  44         Person::safe_columns_tuple(),
  45         Community::safe_columns_tuple(),
  46         PersonAlias1::safe_columns_tuple(),
  47       ))
  48       .into_boxed();
  49
  50     if let Some(mod_person_id) = mod_person_id {
  51       query = query.filter(mod_ban_from_community::mod_person_id.eq(mod_person_id));
  52     };
  53
  54     if let Some(community_id) = community_id {
  55       query = query.filter(mod_ban_from_community::community_id.eq(community_id));
  56     };
  57
  58     let (limit, offset) = limit_and_offset(page, limit);
  59
  60     let res = query
  61       .limit(limit)
  62       .offset(offset)
  63       .order_by(mod_ban_from_community::when_.desc())
  64       .load::<ModBanFromCommunityViewTuple>(conn)?;
  65
  66     Ok(Self::from_tuple_to_vec(res))
  67   }
  68 }
  69
  70 impl ViewToVec for ModBanFromCommunityView {
  71   type DbTuple = ModBanFromCommunityViewTuple;
  72   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  73     items
  74       .iter()
  75       .map(|a| Self {
  76         mod_ban_from_community: a.0.to_owned(),
  77         moderator: a.1.to_owned(),
  78         community: a.2.to_owned(),
  79         banned_person: a.3.to_owned(),
  80       })
  81       .collect::<Vec<Self>>()
  82   }
  83 }