crates/db_views_actor/src/person_view.rs

   1 use crate::structs::PersonView;
   2 use diesel::{
   3   dsl::{now, IntervalDsl},
   4   result::Error,
   5   BoolExpressionMethods,
   6   ExpressionMethods,
   7   PgTextExpressionMethods,
   8   QueryDsl,
   9 };
  10 use diesel_async::RunQueryDsl;
  11 use lemmy_db_schema::{
  12   aggregates::structs::PersonAggregates,
  13   newtypes::PersonId,
  14   schema,
  15   schema::{person, person_aggregates},
  16   source::person::Person,
  17   traits::JoinView,
  18   utils::{fuzzy_search, get_conn, limit_and_offset, DbPool},
  19   SortType,
  20 };
  21 use std::iter::Iterator;
  22 use typed_builder::TypedBuilder;
  23
  24 type PersonViewTuple = (Person, PersonAggregates);
  25
  26 impl PersonView {
  27   pub async fn read(pool: &mut DbPool<'_>, person_id: PersonId) -> Result<Self, Error> {
  28     let conn = &mut get_conn(pool).await?;
  29     let res = person::table
  30       .find(person_id)
  31       .inner_join(person_aggregates::table)
  32       .select((person::all_columns, person_aggregates::all_columns))
  33       .first::<PersonViewTuple>(conn)
  34       .await?;
  35     Ok(Self::from_tuple(res))
  36   }
  37
  38   pub async fn is_admin(pool: &mut DbPool<'_>, person_id: PersonId) -> Result<bool, Error> {
  39     use schema::person::dsl::{admin, id, person};
  40     let conn = &mut get_conn(pool).await?;
  41     let is_admin = person
  42       .filter(id.eq(person_id))
  43       .select(admin)
  44       .first::<bool>(conn)
  45       .await?;
  46     Ok(is_admin)
  47   }
  48   pub async fn admins(pool: &mut DbPool<'_>) -> Result<Vec<Self>, Error> {
  49     let conn = &mut get_conn(pool).await?;
  50     let admins = person::table
  51       .inner_join(person_aggregates::table)
  52       .select((person::all_columns, person_aggregates::all_columns))
  53       .filter(person::admin.eq(true))
  54       .filter(person::deleted.eq(false))
  55       .order_by(person::published)
  56       .load::<PersonViewTuple>(conn)
  57       .await?;
  58
  59     Ok(admins.into_iter().map(Self::from_tuple).collect())
  60   }
  61
  62   pub async fn banned(pool: &mut DbPool<'_>) -> Result<Vec<Self>, Error> {
  63     let conn = &mut get_conn(pool).await?;
  64     let banned = person::table
  65       .inner_join(person_aggregates::table)
  66       .select((person::all_columns, person_aggregates::all_columns))
  67       .filter(
  68         person::banned.eq(true).and(
  69           person::ban_expires
  70             .is_null()
  71             .or(person::ban_expires.gt(now)),
  72         ),
  73       )
  74       .filter(person::deleted.eq(false))
  75       .load::<PersonViewTuple>(conn)
  76       .await?;
  77
  78     Ok(banned.into_iter().map(Self::from_tuple).collect())
  79   }
  80 }
  81
  82 #[derive(TypedBuilder)]
  83 #[builder(field_defaults(default))]
  84 pub struct PersonQuery<'a, 'b: 'a> {
  85   #[builder(!default)]
  86   pool: &'a mut DbPool<'b>,
  87   sort: Option<SortType>,
  88   search_term: Option<String>,
  89   page: Option<i64>,
  90   limit: Option<i64>,
  91 }
  92
  93 impl<'a, 'b: 'a> PersonQuery<'a, 'b> {
  94   pub async fn list(self) -> Result<Vec<PersonView>, Error> {
  95     let conn = &mut get_conn(self.pool).await?;
  96     let mut query = person::table
  97       .inner_join(person_aggregates::table)
  98       .select((person::all_columns, person_aggregates::all_columns))
  99       .into_boxed();
 100
 101     if let Some(search_term) = self.search_term {
 102       let searcher = fuzzy_search(&search_term);
 103       query = query
 104         .filter(person::name.ilike(searcher.clone()))
 105         .or_filter(person::display_name.ilike(searcher));
 106     }
 107
 108     query = match self.sort.unwrap_or(SortType::Hot) {
 109       SortType::New | SortType::NewComments => query.order_by(person::published.desc()),
 110       SortType::Old => query.order_by(person::published.asc()),
 111       SortType::Hot | SortType::Active | SortType::TopAll => {
 112         query.order_by(person_aggregates::comment_score.desc())
 113       }
 114       SortType::MostComments => query.order_by(person_aggregates::comment_count.desc()),
 115       SortType::TopYear => query
 116         .filter(person::published.gt(now - 1.years()))
 117         .order_by(person_aggregates::comment_score.desc()),
 118       SortType::TopMonth => query
 119         .filter(person::published.gt(now - 1.months()))
 120         .order_by(person_aggregates::comment_score.desc()),
 121       SortType::TopWeek => query
 122         .filter(person::published.gt(now - 1.weeks()))
 123         .order_by(person_aggregates::comment_score.desc()),
 124       SortType::TopDay => query
 125         .filter(person::published.gt(now - 1.days()))
 126         .order_by(person_aggregates::comment_score.desc()),
 127       SortType::TopHour => query
 128         .filter(person::published.gt(now - 1.hours()))
 129         .order_by(person_aggregates::comment_score.desc()),
 130       SortType::TopSixHour => query
 131         .filter(person::published.gt(now - 6.hours()))
 132         .order_by(person_aggregates::comment_score.desc()),
 133       SortType::TopTwelveHour => query
 134         .filter(person::published.gt(now - 12.hours()))
 135         .order_by(person_aggregates::comment_score.desc()),
 136       SortType::TopThreeMonths => query
 137         .filter(person::published.gt(now - 3.months()))
 138         .order_by(person_aggregates::comment_score.desc()),
 139       SortType::TopSixMonths => query
 140         .filter(person::published.gt(now - 6.months()))
 141         .order_by(person_aggregates::comment_score.desc()),
 142       SortType::TopNineMonths => query
 143         .filter(person::published.gt(now - 9.months()))
 144         .order_by(person_aggregates::comment_score.desc()),
 145     };
 146
 147     let (limit, offset) = limit_and_offset(self.page, self.limit)?;
 148     query = query.limit(limit).offset(offset);
 149
 150     let res = query.load::<PersonViewTuple>(conn).await?;
 151
 152     Ok(res.into_iter().map(PersonView::from_tuple).collect())
 153   }
 154 }
 155
 156 impl JoinView for PersonView {
 157   type JoinTuple = PersonViewTuple;
 158   fn from_tuple(a: Self::JoinTuple) -> Self {
 159     Self {
 160       person: a.0,
 161       counts: a.1,
 162     }
 163   }
 164 }