lemmy/crates/db_views_moderator/src/mod_ban_view.rs

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Rust
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use crate::structs::ModBanView;
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use diesel::{result::Error, *};
use lemmy_db_schema::{
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newtypes::PersonId,
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schema::{mod_ban, person, person_alias_1},
source::{
moderator::ModBan,
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person::{Person, PersonAlias1, PersonSafe, PersonSafeAlias1},
},
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traits::{ToSafe, ViewToVec},
utils::limit_and_offset,
};
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type ModBanViewTuple = (ModBan, PersonSafe, PersonSafeAlias1);
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impl ModBanView {
pub fn list(
conn: &PgConnection,
mod_person_id: Option<PersonId>,
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page: Option<i64>,
limit: Option<i64>,
) -> Result<Vec<Self>, Error> {
let mut query = mod_ban::table
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.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)))
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.select((
mod_ban::all_columns,
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Person::safe_columns_tuple(),
PersonAlias1::safe_columns_tuple(),
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))
.into_boxed();
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if let Some(mod_person_id) = mod_person_id {
query = query.filter(mod_ban::mod_person_id.eq(mod_person_id));
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};
let (limit, offset) = limit_and_offset(page, limit)?;
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let res = query
.limit(limit)
.offset(offset)
.order_by(mod_ban::when_.desc())
.load::<ModBanViewTuple>(conn)?;
Ok(Self::from_tuple_to_vec(res))
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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>>()
}
}