crates/db_views_actor/src/community_block_view.rs

   1 use diesel::{result::Error, *};
   2 use lemmy_db_queries::{ToSafe, ViewToVec};
   3 use lemmy_db_schema::{
   4   schema::{community, community_block, person},
   5   source::{
   6     community::{Community, CommunitySafe},
   7     person::{Person, PersonSafe},
   8   },
   9   PersonId,
  10 };
  11 use serde::Serialize;
  12
  13 #[derive(Debug, Serialize, Clone)]
  14 pub struct CommunityBlockView {
  15   pub person: PersonSafe,
  16   pub community: CommunitySafe,
  17 }
  18
  19 type CommunityBlockViewTuple = (PersonSafe, CommunitySafe);
  20
  21 impl CommunityBlockView {
  22   pub fn for_person(conn: &PgConnection, person_id: PersonId) -> Result<Vec<Self>, Error> {
  23     let res = community_block::table
  24       .inner_join(person::table)
  25       .inner_join(community::table)
  26       .select((
  27         Person::safe_columns_tuple(),
  28         Community::safe_columns_tuple(),
  29       ))
  30       .filter(community_block::person_id.eq(person_id))
  31       .order_by(community_block::published)
  32       .load::<CommunityBlockViewTuple>(conn)?;
  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       .iter()
  43       .map(|a| Self {
  44         person: a.0.to_owned(),
  45         community: a.1.to_owned(),
  46       })
  47       .collect::<Vec<Self>>()
  48   }
  49 }