crates/db_views_actor/src/community_block_view.rs

   1 use crate::structs::CommunityBlockView;
   2 use diesel::{result::Error, ExpressionMethods, QueryDsl};
   3 use diesel_async::RunQueryDsl;
   4 use lemmy_db_schema::{
   5   newtypes::PersonId,
   6   schema::{community, community_block, person},
   7   source::{
   8     community::{Community, CommunitySafe},
   9     person::{Person, PersonSafe},
  10   },
  11   traits::{ToSafe, ViewToVec},
  12   utils::{get_conn, DbPool},
  13 };
  14
  15 type CommunityBlockViewTuple = (PersonSafe, CommunitySafe);
  16
  17 impl CommunityBlockView {
  18   pub async fn for_person(pool: &DbPool, person_id: PersonId) -> Result<Vec<Self>, Error> {
  19     let conn = &mut get_conn(pool).await?;
  20     let res = community_block::table
  21       .inner_join(person::table)
  22       .inner_join(community::table)
  23       .select((
  24         Person::safe_columns_tuple(),
  25         Community::safe_columns_tuple(),
  26       ))
  27       .filter(community_block::person_id.eq(person_id))
  28       .filter(community::deleted.eq(false))
  29       .filter(community::removed.eq(false))
  30       .order_by(community_block::published)
  31       .load::<CommunityBlockViewTuple>(conn)
  32       .await?;
  33
  34     Ok(Self::from_tuple_to_vec(res))
  35   }
  36 }
  37
  38 impl ViewToVec for CommunityBlockView {
  39   type DbTuple = CommunityBlockViewTuple;
  40   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
  41     items
  42       .into_iter()
  43       .map(|a| Self {
  44         person: a.0,
  45         community: a.1,
  46       })
  47       .collect::<Vec<Self>>()
  48   }
  49 }