use crate::structs::PersonMentionView;
use diesel::{
dsl::now,
+ pg::Pg,
result::Error,
BoolExpressionMethods,
ExpressionMethods,
use diesel_async::RunQueryDsl;
use lemmy_db_schema::{
aggregates::structs::CommentAggregates,
+ aliases,
newtypes::{PersonId, PersonMentionId},
schema::{
comment,
post::Post,
},
traits::JoinView,
- utils::{get_conn, limit_and_offset, DbPool},
+ utils::{get_conn, limit_and_offset, DbConn, DbPool, ListFn, Queries, ReadFn},
CommentSortType,
};
Option<i16>,
);
-impl PersonMentionView {
- pub async fn read(
- pool: &mut DbPool<'_>,
- person_mention_id: PersonMentionId,
- my_person_id: Option<PersonId>,
- ) -> Result<Self, Error> {
- let conn = &mut get_conn(pool).await?;
- let person_alias_1 = diesel::alias!(person as person1);
-
+fn queries<'a>() -> Queries<
+ impl ReadFn<'a, PersonMentionView, (PersonMentionId, Option<PersonId>)>,
+ impl ListFn<'a, PersonMentionView, PersonMentionQuery>,
+> {
+ let all_joins = |query: person_mention::BoxedQuery<'a, Pg>, my_person_id: Option<PersonId>| {
// The left join below will return None in this case
let person_id_join = my_person_id.unwrap_or(PersonId(-1));
- let (
- person_mention,
- comment,
- creator,
- post,
- community,
- recipient,
- counts,
- creator_banned_from_community,
- follower,
- saved,
- creator_blocked,
- my_vote,
- ) = person_mention::table
- .find(person_mention_id)
+ query
.inner_join(comment::table)
.inner_join(person::table.on(comment::creator_id.eq(person::id)))
.inner_join(post::table.on(comment::post_id.eq(post::id)))
.inner_join(community::table.on(post::community_id.eq(community::id)))
- .inner_join(person_alias_1)
+ .inner_join(aliases::person1)
.inner_join(comment_aggregates::table.on(comment::id.eq(comment_aggregates::comment_id)))
- .left_join(
- community_person_ban::table.on(
- community::id
- .eq(community_person_ban::community_id)
- .and(community_person_ban::person_id.eq(comment::creator_id)),
- ),
- )
.left_join(
community_follower::table.on(
post::community_id
.and(comment_like::person_id.eq(person_id_join)),
),
)
- .select((
- person_mention::all_columns,
- comment::all_columns,
- person::all_columns,
- post::all_columns,
- community::all_columns,
- person_alias_1.fields(person::all_columns),
- comment_aggregates::all_columns,
- community_person_ban::all_columns.nullable(),
- community_follower::all_columns.nullable(),
- comment_saved::all_columns.nullable(),
- person_block::all_columns.nullable(),
- comment_like::score.nullable(),
- ))
- .first::<PersonMentionViewTuple>(conn)
- .await?;
+ };
+
+ let selection = (
+ person_mention::all_columns,
+ comment::all_columns,
+ person::all_columns,
+ post::all_columns,
+ community::all_columns,
+ aliases::person1.fields(person::all_columns),
+ comment_aggregates::all_columns,
+ community_person_ban::all_columns.nullable(),
+ community_follower::all_columns.nullable(),
+ comment_saved::all_columns.nullable(),
+ person_block::all_columns.nullable(),
+ comment_like::score.nullable(),
+ );
+
+ let read =
+ move |mut conn: DbConn<'a>,
+ (person_mention_id, my_person_id): (PersonMentionId, Option<PersonId>)| async move {
+ all_joins(
+ person_mention::table.find(person_mention_id).into_boxed(),
+ my_person_id,
+ )
+ .left_join(
+ community_person_ban::table.on(
+ community::id
+ .eq(community_person_ban::community_id)
+ .and(community_person_ban::person_id.eq(comment::creator_id)),
+ ),
+ )
+ .select(selection)
+ .first::<PersonMentionViewTuple>(&mut conn)
+ .await
+ };
- Ok(PersonMentionView {
- person_mention,
- comment,
- creator,
- post,
- community,
- recipient,
- counts,
- creator_banned_from_community: creator_banned_from_community.is_some(),
- subscribed: CommunityFollower::to_subscribed_type(&follower),
- saved: saved.is_some(),
- creator_blocked: creator_blocked.is_some(),
- my_vote,
- })
+ let list = move |mut conn: DbConn<'a>, options: PersonMentionQuery| async move {
+ let mut query = all_joins(person_mention::table.into_boxed(), options.my_person_id)
+ .left_join(
+ community_person_ban::table.on(
+ community::id
+ .eq(community_person_ban::community_id)
+ .and(community_person_ban::person_id.eq(comment::creator_id))
+ .and(
+ community_person_ban::expires
+ .is_null()
+ .or(community_person_ban::expires.gt(now)),
+ ),
+ ),
+ )
+ .select(selection);
+
+ if let Some(recipient_id) = options.recipient_id {
+ query = query.filter(person_mention::recipient_id.eq(recipient_id));
+ }
+
+ if options.unread_only.unwrap_or(false) {
+ query = query.filter(person_mention::read.eq(false));
+ }
+
+ if !options.show_bot_accounts.unwrap_or(true) {
+ query = query.filter(person::bot_account.eq(false));
+ };
+
+ query = match options.sort.unwrap_or(CommentSortType::Hot) {
+ CommentSortType::Hot => query.then_order_by(comment_aggregates::hot_rank.desc()),
+ CommentSortType::Controversial => {
+ query.then_order_by(comment_aggregates::controversy_rank.desc())
+ }
+ CommentSortType::New => query.then_order_by(comment::published.desc()),
+ CommentSortType::Old => query.then_order_by(comment::published.asc()),
+ CommentSortType::Top => query.order_by(comment_aggregates::score.desc()),
+ };
+
+ let (limit, offset) = limit_and_offset(options.page, options.limit)?;
+
+ query
+ .limit(limit)
+ .offset(offset)
+ .load::<PersonMentionViewTuple>(&mut conn)
+ .await
+ };
+
+ Queries::new(read, list)
+}
+
+impl PersonMentionView {
+ pub async fn read(
+ pool: &mut DbPool<'_>,
+ person_mention_id: PersonMentionId,
+ my_person_id: Option<PersonId>,
+ ) -> Result<Self, Error> {
+ queries()
+ .read(pool, (person_mention_id, my_person_id))
+ .await
}
/// Gets the number of unread mentions
impl PersonMentionQuery {
pub async fn list(self, pool: &mut DbPool<'_>) -> Result<Vec<PersonMentionView>, Error> {
- let conn = &mut get_conn(pool).await?;
-
- let person_alias_1 = diesel::alias!(person as person1);
-
- // The left join below will return None in this case
- let person_id_join = self.my_person_id.unwrap_or(PersonId(-1));
-
- let mut query = person_mention::table
- .inner_join(comment::table)
- .inner_join(person::table.on(comment::creator_id.eq(person::id)))
- .inner_join(post::table.on(comment::post_id.eq(post::id)))
- .inner_join(community::table.on(post::community_id.eq(community::id)))
- .inner_join(person_alias_1)
- .inner_join(comment_aggregates::table.on(comment::id.eq(comment_aggregates::comment_id)))
- .left_join(
- community_person_ban::table.on(
- community::id
- .eq(community_person_ban::community_id)
- .and(community_person_ban::person_id.eq(comment::creator_id))
- .and(
- community_person_ban::expires
- .is_null()
- .or(community_person_ban::expires.gt(now)),
- ),
- ),
- )
- .left_join(
- community_follower::table.on(
- post::community_id
- .eq(community_follower::community_id)
- .and(community_follower::person_id.eq(person_id_join)),
- ),
- )
- .left_join(
- comment_saved::table.on(
- comment::id
- .eq(comment_saved::comment_id)
- .and(comment_saved::person_id.eq(person_id_join)),
- ),
- )
- .left_join(
- person_block::table.on(
- comment::creator_id
- .eq(person_block::target_id)
- .and(person_block::person_id.eq(person_id_join)),
- ),
- )
- .left_join(
- comment_like::table.on(
- comment::id
- .eq(comment_like::comment_id)
- .and(comment_like::person_id.eq(person_id_join)),
- ),
- )
- .select((
- person_mention::all_columns,
- comment::all_columns,
- person::all_columns,
- post::all_columns,
- community::all_columns,
- person_alias_1.fields(person::all_columns),
- comment_aggregates::all_columns,
- community_person_ban::all_columns.nullable(),
- community_follower::all_columns.nullable(),
- comment_saved::all_columns.nullable(),
- person_block::all_columns.nullable(),
- comment_like::score.nullable(),
- ))
- .into_boxed();
-
- if let Some(recipient_id) = self.recipient_id {
- query = query.filter(person_mention::recipient_id.eq(recipient_id));
- }
-
- if self.unread_only.unwrap_or(false) {
- query = query.filter(person_mention::read.eq(false));
- }
-
- if !self.show_bot_accounts.unwrap_or(true) {
- query = query.filter(person::bot_account.eq(false));
- };
-
- query = match self.sort.unwrap_or(CommentSortType::Hot) {
- CommentSortType::Hot => query.then_order_by(comment_aggregates::hot_rank.desc()),
- CommentSortType::New => query.then_order_by(comment::published.desc()),
- CommentSortType::Old => query.then_order_by(comment::published.asc()),
- CommentSortType::Top => query.order_by(comment_aggregates::score.desc()),
- };
-
- let (limit, offset) = limit_and_offset(self.page, self.limit)?;
-
- let res = query
- .limit(limit)
- .offset(offset)
- .load::<PersonMentionViewTuple>(conn)
- .await?;
-
- Ok(res.into_iter().map(PersonMentionView::from_tuple).collect())
+ queries().list(pool, self).await
}
}