lemmy/crates/db_views_actor/src/community_block_view.rs

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use diesel::{result::Error, *};
use lemmy_db_queries::{ToSafe, ViewToVec};
use lemmy_db_schema::{
schema::{community, community_block, person},
source::{
community::{Community, CommunitySafe},
person::{Person, PersonSafe},
},
PersonId,
};
use serde::{Deserialize, Serialize};
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct CommunityBlockView {
pub person: PersonSafe,
pub community: CommunitySafe,
}
type CommunityBlockViewTuple = (PersonSafe, CommunitySafe);
impl CommunityBlockView {
pub fn for_person(conn: &PgConnection, person_id: PersonId) -> Result<Vec<Self>, Error> {
let res = community_block::table
.inner_join(person::table)
.inner_join(community::table)
.select((
Person::safe_columns_tuple(),
Community::safe_columns_tuple(),
))
.filter(community_block::person_id.eq(person_id))
.order_by(community_block::published)
.load::<CommunityBlockViewTuple>(conn)?;
Ok(Self::from_tuple_to_vec(res))
}
}
impl ViewToVec for CommunityBlockView {
type DbTuple = CommunityBlockViewTuple;
fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
items
.iter()
.map(|a| Self {
person: a.0.to_owned(),
community: a.1.to_owned(),
})
.collect::<Vec<Self>>()
}
}