crates/db_views_moderator/src/mod_ban_from_community_view.rs

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