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   CommunityId,
  11   PersonId,
  12 };
  13 use serde::Serialize;
  14
  15 #[derive(Debug, Serialize, Clone)]
  16 pub struct ModBanFromCommunityView {
  17   pub mod_ban_from_community: ModBanFromCommunity,
  18   pub moderator: PersonSafe,
  19   pub community: CommunitySafe,
  20   pub banned_person: PersonSafeAlias1,
  21 }
  22
  23 type ModBanFromCommunityViewTuple = (
  24   ModBanFromCommunity,
  25   PersonSafe,
  26   CommunitySafe,
  27   PersonSafeAlias1,
  28 );
  29
  30 impl ModBanFromCommunityView {
  31   pub fn list(
  32     conn: &PgConnection,
  33     community_id: Option<CommunityId>,
  34     mod_person_id: Option<PersonId>,
  35     page: Option<i64>,
  36     limit: Option<i64>,
  37   ) -> Result<Vec<Self>, Error> {
  38     let mut query = mod_ban_from_community::table
  39       .inner_join(person::table.on(mod_ban_from_community::mod_person_id.eq(person::id)))
  40       .inner_join(community::table)
  41       .inner_join(
  42         person_alias_1::table.on(mod_ban_from_community::other_person_id.eq(person_alias_1::id)),
  43       )
  44       .select((
  45         mod_ban_from_community::all_columns,
  46         Person::safe_columns_tuple(),
  47         Community::safe_columns_tuple(),
  48         PersonAlias1::safe_columns_tuple(),
  49       ))
  50       .into_boxed();
  51
  52     if let Some(mod_person_id) = mod_person_id {
  53       query = query.filter(mod_ban_from_community::mod_person_id.eq(mod_person_id));
  54     };
  55
  56     if let Some(community_id) = community_id {
  57       query = query.filter(mod_ban_from_community::community_id.eq(community_id));
  58     };
  59
  60     let (limit, offset) = limit_and_offset(page, limit);
  61
  62     let res = query
  63       .limit(limit)
  64       .offset(offset)
  65       .order_by(mod_ban_from_community::when_.desc())
  66       .load::<ModBanFromCommunityViewTuple>(conn)?;
  67
  68     Ok(Self::from_tuple_to_vec(res))
  69   }
  70 }
  71
  72 impl ViewToVec for ModBanFromCommunityView {
  73   type DbTuple = ModBanFromCommunityViewTuple;
  74   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  75     items
  76       .iter()
  77       .map(|a| Self {
  78         mod_ban_from_community: a.0.to_owned(),
  79         moderator: a.1.to_owned(),
  80         community: a.2.to_owned(),
  81         banned_person: a.3.to_owned(),
  82       })
  83       .collect::<Vec<Self>>()
  84   }
  85 }