mirror of https://github.com/LemmyNet/lemmy.git
63 lines
1.8 KiB
Rust
63 lines
1.8 KiB
Rust
use diesel::{result::Error, *};
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use lemmy_db_schema::{
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newtypes::{CommunityId, PersonId},
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schema::{community, community_follower, person},
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source::{
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community::{Community, CommunitySafe},
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person::{Person, PersonSafe},
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},
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traits::{ToSafe, ViewToVec},
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};
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use serde::{Deserialize, Serialize};
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#[derive(Debug, Serialize, Deserialize, Clone)]
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pub struct CommunityFollowerView {
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pub community: CommunitySafe,
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pub follower: PersonSafe,
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}
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type CommunityFollowerViewTuple = (CommunitySafe, PersonSafe);
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impl CommunityFollowerView {
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pub fn for_community(conn: &PgConnection, community_id: CommunityId) -> Result<Vec<Self>, Error> {
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let res = community_follower::table
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.inner_join(community::table)
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.inner_join(person::table)
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.select((
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Community::safe_columns_tuple(),
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Person::safe_columns_tuple(),
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))
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.filter(community_follower::community_id.eq(community_id))
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.load::<CommunityFollowerViewTuple>(conn)?;
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Ok(Self::from_tuple_to_vec(res))
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}
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pub fn for_person(conn: &PgConnection, person_id: PersonId) -> Result<Vec<Self>, Error> {
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let res = community_follower::table
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.inner_join(community::table)
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.inner_join(person::table)
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.select((
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Community::safe_columns_tuple(),
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Person::safe_columns_tuple(),
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))
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.filter(community_follower::person_id.eq(person_id))
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.load::<CommunityFollowerViewTuple>(conn)?;
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Ok(Self::from_tuple_to_vec(res))
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}
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}
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impl ViewToVec for CommunityFollowerView {
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type DbTuple = CommunityFollowerViewTuple;
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fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
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items
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.iter()
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.map(|a| Self {
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community: a.0.to_owned(),
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follower: a.1.to_owned(),
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})
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.collect::<Vec<Self>>()
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}
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}
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