lemmy/crates/db_views_moderator/src/mod_ban_view.rs

69 lines
1.7 KiB
Rust

use diesel::{result::Error, *};
use lemmy_db_schema::{
limit_and_offset,
newtypes::PersonId,
schema::{mod_ban, person, person_alias_1},
source::{
moderator::ModBan,
person::{Person, PersonAlias1, PersonSafe, PersonSafeAlias1},
},
traits::{ToSafe, ViewToVec},
};
use serde::{Deserialize, Serialize};
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct ModBanView {
pub mod_ban: ModBan,
pub moderator: PersonSafe,
pub banned_person: PersonSafeAlias1,
}
type ModBanViewTuple = (ModBan, PersonSafe, PersonSafeAlias1);
impl ModBanView {
pub fn list(
conn: &PgConnection,
mod_person_id: Option<PersonId>,
page: Option<i64>,
limit: Option<i64>,
) -> Result<Vec<Self>, Error> {
let mut query = mod_ban::table
.inner_join(person::table.on(mod_ban::mod_person_id.eq(person::id)))
.inner_join(person_alias_1::table.on(mod_ban::other_person_id.eq(person_alias_1::id)))
.select((
mod_ban::all_columns,
Person::safe_columns_tuple(),
PersonAlias1::safe_columns_tuple(),
))
.into_boxed();
if let Some(mod_person_id) = mod_person_id {
query = query.filter(mod_ban::mod_person_id.eq(mod_person_id));
};
let (limit, offset) = limit_and_offset(page, limit);
let res = query
.limit(limit)
.offset(offset)
.order_by(mod_ban::when_.desc())
.load::<ModBanViewTuple>(conn)?;
Ok(Self::from_tuple_to_vec(res))
}
}
impl ViewToVec for ModBanView {
type DbTuple = ModBanViewTuple;
fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
items
.iter()
.map(|a| Self {
mod_ban: a.0.to_owned(),
moderator: a.1.to_owned(),
banned_person: a.2.to_owned(),
})
.collect::<Vec<Self>>()
}
}