lemmy/crates/db_views/src/vote_view.rs

236 lines
6.9 KiB
Rust

use crate::structs::VoteView;
use diesel::{
result::Error,
BoolExpressionMethods,
ExpressionMethods,
JoinOnDsl,
NullableExpressionMethods,
QueryDsl,
};
use diesel_async::RunQueryDsl;
use lemmy_db_schema::{
newtypes::{CommentId, PostId},
schema::{comment, comment_like, community_person_ban, person, post, post_like},
utils::{get_conn, limit_and_offset, DbPool},
};
impl VoteView {
pub async fn list_for_post(
pool: &mut DbPool<'_>,
post_id: PostId,
page: Option<i64>,
limit: Option<i64>,
) -> Result<Vec<Self>, Error> {
let conn = &mut get_conn(pool).await?;
let (limit, offset) = limit_and_offset(page, limit)?;
post_like::table
.inner_join(person::table)
.inner_join(post::table)
// Join to community_person_ban to get creator_banned_from_community
.left_join(
community_person_ban::table.on(
post::community_id
.eq(community_person_ban::community_id)
.and(community_person_ban::person_id.eq(post_like::person_id)),
),
)
.filter(post_like::post_id.eq(post_id))
.select((
person::all_columns,
community_person_ban::community_id.nullable().is_not_null(),
post_like::score,
))
.order_by(post_like::score)
.limit(limit)
.offset(offset)
.load::<Self>(conn)
.await
}
pub async fn list_for_comment(
pool: &mut DbPool<'_>,
comment_id: CommentId,
page: Option<i64>,
limit: Option<i64>,
) -> Result<Vec<Self>, Error> {
let conn = &mut get_conn(pool).await?;
let (limit, offset) = limit_and_offset(page, limit)?;
comment_like::table
.inner_join(person::table)
.inner_join(comment::table)
.inner_join(post::table.on(comment::post_id.eq(post::id)))
// Join to community_person_ban to get creator_banned_from_community
.left_join(
community_person_ban::table.on(
post::community_id
.eq(community_person_ban::community_id)
.and(community_person_ban::person_id.eq(comment_like::person_id)),
),
)
.filter(comment_like::comment_id.eq(comment_id))
.select((
person::all_columns,
community_person_ban::community_id.nullable().is_not_null(),
comment_like::score,
))
.order_by(comment_like::score)
.limit(limit)
.offset(offset)
.load::<Self>(conn)
.await
}
}
#[cfg(test)]
mod tests {
use crate::structs::VoteView;
use lemmy_db_schema::{
source::{
comment::{Comment, CommentInsertForm, CommentLike, CommentLikeForm},
community::{Community, CommunityInsertForm, CommunityPersonBan, CommunityPersonBanForm},
instance::Instance,
person::{Person, PersonInsertForm},
post::{Post, PostInsertForm, PostLike, PostLikeForm},
},
traits::{Bannable, Crud, Likeable},
utils::build_db_pool_for_tests,
};
use lemmy_utils::error::LemmyResult;
use pretty_assertions::assert_eq;
use serial_test::serial;
#[tokio::test]
#[serial]
async fn post_and_comment_vote_views() -> LemmyResult<()> {
let pool = &build_db_pool_for_tests().await;
let pool = &mut pool.into();
let inserted_instance = Instance::read_or_create(pool, "my_domain.tld".to_string()).await?;
let new_person = PersonInsertForm::test_form(inserted_instance.id, "timmy_vv");
let inserted_timmy = Person::create(pool, &new_person).await?;
let new_person_2 = PersonInsertForm::test_form(inserted_instance.id, "sara_vv");
let inserted_sara = Person::create(pool, &new_person_2).await?;
let new_community = CommunityInsertForm::new(
inserted_instance.id,
"test community vv".to_string(),
"nada".to_owned(),
"pubkey".to_string(),
);
let inserted_community = Community::create(pool, &new_community).await?;
let new_post = PostInsertForm::new(
"A test post vv".into(),
inserted_timmy.id,
inserted_community.id,
);
let inserted_post = Post::create(pool, &new_post).await?;
let comment_form = CommentInsertForm::new(
inserted_timmy.id,
inserted_post.id,
"A test comment vv".into(),
);
let inserted_comment = Comment::create(pool, &comment_form, None).await?;
// Timmy upvotes his own post
let timmy_post_vote_form = PostLikeForm {
post_id: inserted_post.id,
person_id: inserted_timmy.id,
score: 1,
};
PostLike::like(pool, &timmy_post_vote_form).await?;
// Sara downvotes timmy's post
let sara_post_vote_form = PostLikeForm {
post_id: inserted_post.id,
person_id: inserted_sara.id,
score: -1,
};
PostLike::like(pool, &sara_post_vote_form).await?;
let expected_post_vote_views = [
VoteView {
creator: inserted_sara.clone(),
creator_banned_from_community: false,
score: -1,
},
VoteView {
creator: inserted_timmy.clone(),
creator_banned_from_community: false,
score: 1,
},
];
let read_post_vote_views = VoteView::list_for_post(pool, inserted_post.id, None, None).await?;
assert_eq!(read_post_vote_views, expected_post_vote_views);
// Timothy votes down his own comment
let timmy_comment_vote_form = CommentLikeForm {
comment_id: inserted_comment.id,
person_id: inserted_timmy.id,
score: -1,
};
CommentLike::like(pool, &timmy_comment_vote_form).await?;
// Sara upvotes timmy's comment
let sara_comment_vote_form = CommentLikeForm {
comment_id: inserted_comment.id,
person_id: inserted_sara.id,
score: 1,
};
CommentLike::like(pool, &sara_comment_vote_form).await?;
let expected_comment_vote_views = [
VoteView {
creator: inserted_timmy.clone(),
creator_banned_from_community: false,
score: -1,
},
VoteView {
creator: inserted_sara.clone(),
creator_banned_from_community: false,
score: 1,
},
];
let read_comment_vote_views =
VoteView::list_for_comment(pool, inserted_comment.id, None, None).await?;
assert_eq!(read_comment_vote_views, expected_comment_vote_views);
// Ban timmy from that community
let ban_timmy_form = CommunityPersonBanForm {
community_id: inserted_community.id,
person_id: inserted_timmy.id,
expires: None,
};
CommunityPersonBan::ban(pool, &ban_timmy_form).await?;
// Make sure creator_banned_from_community is true
let read_comment_vote_views_after_ban =
VoteView::list_for_comment(pool, inserted_comment.id, None, None).await?;
assert!(read_comment_vote_views_after_ban
.first()
.is_some_and(|c| c.creator_banned_from_community));
let read_post_vote_views_after_ban =
VoteView::list_for_post(pool, inserted_post.id, None, None).await?;
assert!(read_post_vote_views_after_ban
.get(1)
.is_some_and(|p| p.creator_banned_from_community));
// Cleanup
Instance::delete(pool, inserted_instance.id).await?;
Ok(())
}
}