lemmy/crates/db_views_moderator/src/mod_add_view.rs

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2.0 KiB
Rust
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use crate::structs::{ModAddView, ModlogListParams};
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use diesel::{result::Error, *};
use lemmy_db_schema::{
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newtypes::PersonId,
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schema::{mod_add, person, person_alias_1},
source::{
moderator::ModAdd,
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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 ModAddViewTuple = (ModAdd, Option<PersonSafe>, PersonSafeAlias1);
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impl ModAddView {
pub fn list(conn: &PgConnection, params: ModlogListParams) -> Result<Vec<Self>, Error> {
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_add::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_add::table
.left_join(person::table.on(admin_names_join))
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.inner_join(person_alias_1::table.on(mod_add::other_person_id.eq(person_alias_1::id)))
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.select((
mod_add::all_columns,
Person::safe_columns_tuple().nullable(),
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PersonAlias1::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_add::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::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_add::when_.desc())
.load::<ModAddViewTuple>(conn)?;
let results = Self::from_tuple_to_vec(res);
Ok(results)
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}
}
impl ViewToVec for ModAddView {
type DbTuple = ModAddViewTuple;
fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
items
.into_iter()
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.map(|a| Self {
mod_add: a.0,
moderator: a.1,
modded_person: a.2,
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})
.collect::<Vec<Self>>()
}
}