lemmy/crates/db_views_moderator/src/mod_ban_view.rs

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2.3 KiB
Rust
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use crate::structs::{ModBanView, ModlogListParams};
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use diesel::{
result::Error,
BoolExpressionMethods,
ExpressionMethods,
IntoSql,
JoinOnDsl,
NullableExpressionMethods,
QueryDsl,
};
use diesel_async::RunQueryDsl;
use lemmy_db_schema::{
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newtypes::PersonId,
schema::{mod_ban, person},
source::{
moderator::ModBan,
person::{Person, PersonSafe},
},
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traits::{ToSafe, ViewToVec},
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utils::{get_conn, limit_and_offset, DbPool},
};
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type ModBanViewTuple = (ModBan, Option<PersonSafe>, PersonSafe);
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impl ModBanView {
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pub async fn list(pool: &DbPool, params: ModlogListParams) -> Result<Vec<Self>, Error> {
let conn = &mut get_conn(pool).await?;
let person_alias_1 = diesel::alias!(person as person1);
let admin_person_id_join = params.mod_person_id.unwrap_or(PersonId(-1));
let show_mod_names = !params.hide_modlog_names;
let show_mod_names_expr = show_mod_names.as_sql::<diesel::sql_types::Bool>();
let admin_names_join = mod_ban::mod_person_id
.eq(person::id)
.and(show_mod_names_expr.or(person::id.eq(admin_person_id_join)));
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let mut query = mod_ban::table
.left_join(person::table.on(admin_names_join))
.inner_join(person_alias_1.on(mod_ban::other_person_id.eq(person_alias_1.field(person::id))))
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.select((
mod_ban::all_columns,
Person::safe_columns_tuple().nullable(),
person_alias_1.fields(Person::safe_columns_tuple()),
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))
.into_boxed();
if let Some(mod_person_id) = params.mod_person_id {
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query = query.filter(mod_ban::mod_person_id.eq(mod_person_id));
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};
if let Some(other_person_id) = params.other_person_id {
query = query.filter(person_alias_1.field(person::id).eq(other_person_id));
};
let (limit, offset) = limit_and_offset(params.page, params.limit)?;
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let res = query
.limit(limit)
.offset(offset)
.order_by(mod_ban::when_.desc())
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.load::<ModBanViewTuple>(conn)
.await?;
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let results = Self::from_tuple_to_vec(res);
Ok(results)
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}
}
impl ViewToVec for ModBanView {
type DbTuple = ModBanViewTuple;
fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
items
.into_iter()
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.map(|a| Self {
mod_ban: a.0,
moderator: a.1,
banned_person: a.2,
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})
.collect::<Vec<Self>>()
}
}