use crate::{
diesel::{DecoratableTarget, OptionalExtension},
newtypes::{CommentId, DbUrl, PersonId},
schema::comment,
source::comment::{
Comment,
CommentInsertForm,
CommentLike,
CommentLikeForm,
CommentSaved,
CommentSavedForm,
CommentUpdateForm,
},
traits::{Crud, Likeable, Saveable},
utils::{functions::coalesce, get_conn, naive_now, DbPool, DELETED_REPLACEMENT_TEXT},
};
use chrono::{DateTime, Utc};
use diesel::{dsl::insert_into, result::Error, ExpressionMethods, QueryDsl};
use diesel_async::RunQueryDsl;
use diesel_ltree::Ltree;
use url::Url;
impl Comment {
pub async fn permadelete_for_creator(
pool: &mut DbPool<'_>,
for_creator_id: PersonId,
) -> Result<Vec<Self>, Error> {
let conn = &mut get_conn(pool).await?;
diesel::update(comment::table.filter(comment::creator_id.eq(for_creator_id)))
.set((
comment::content.eq(DELETED_REPLACEMENT_TEXT),
comment::deleted.eq(true),
comment::updated.eq(naive_now()),
))
.get_results::<Self>(conn)
.await
}
pub async fn update_removed_for_creator(
pool: &mut DbPool<'_>,
for_creator_id: PersonId,
new_removed: bool,
) -> Result<Vec<Self>, Error> {
let conn = &mut get_conn(pool).await?;
diesel::update(comment::table.filter(comment::creator_id.eq(for_creator_id)))
.set((
comment::removed.eq(new_removed),
comment::updated.eq(naive_now()),
))
.get_results::<Self>(conn)
.await
}
pub async fn create(
pool: &mut DbPool<'_>,
comment_form: &CommentInsertForm,
parent_path: Option<&Ltree>,
) -> Result<Comment, Error> {
Self::insert_apub(pool, None, comment_form, parent_path).await
}
pub async fn insert_apub(
pool: &mut DbPool<'_>,
timestamp: Option<DateTime<Utc>>,
comment_form: &CommentInsertForm,
parent_path: Option<&Ltree>,
) -> Result<Comment, Error> {
let conn = &mut get_conn(pool).await?;
let comment_form = (comment_form, parent_path.map(|p| comment::path.eq(p)));
if let Some(timestamp) = timestamp {
insert_into(comment::table)
.values(comment_form)
.on_conflict(comment::ap_id)
.filter_target(coalesce(comment::updated, comment::published).lt(timestamp))
.do_update()
.set(comment_form)
.get_result::<Self>(conn)
.await
} else {
insert_into(comment::table)
.values(comment_form)
.get_result::<Self>(conn)
.await
}
}
pub async fn read_from_apub_id(
pool: &mut DbPool<'_>,
object_id: Url,
) -> Result<Option<Self>, Error> {
let conn = &mut get_conn(pool).await?;
let object_id: DbUrl = object_id.into();
comment::table
.filter(comment::ap_id.eq(object_id))
.first(conn)
.await
.optional()
}
pub fn parent_comment_id(&self) -> Option<CommentId> {
let mut ltree_split: Vec<&str> = self.path.0.split('.').collect();
ltree_split.remove(0); if ltree_split.len() > 1 {
let parent_comment_id = ltree_split.get(ltree_split.len() - 2);
parent_comment_id.and_then(|p| p.parse::<i32>().map(CommentId).ok())
} else {
None
}
}
}
#[async_trait]
impl Crud for Comment {
type InsertForm = CommentInsertForm;
type UpdateForm = CommentUpdateForm;
type IdType = CommentId;
async fn create(pool: &mut DbPool<'_>, comment_form: &Self::InsertForm) -> Result<Self, Error> {
debug_assert!(false);
Comment::create(pool, comment_form, None).await
}
async fn update(
pool: &mut DbPool<'_>,
comment_id: CommentId,
comment_form: &Self::UpdateForm,
) -> Result<Self, Error> {
let conn = &mut get_conn(pool).await?;
diesel::update(comment::table.find(comment_id))
.set(comment_form)
.get_result::<Self>(conn)
.await
}
}
#[async_trait]
impl Likeable for CommentLike {
type Form = CommentLikeForm;
type IdType = CommentId;
async fn like(pool: &mut DbPool<'_>, comment_like_form: &CommentLikeForm) -> Result<Self, Error> {
use crate::schema::comment_like::dsl::{comment_id, comment_like, person_id};
let conn = &mut get_conn(pool).await?;
insert_into(comment_like)
.values(comment_like_form)
.on_conflict((comment_id, person_id))
.do_update()
.set(comment_like_form)
.get_result::<Self>(conn)
.await
}
async fn remove(
pool: &mut DbPool<'_>,
person_id: PersonId,
comment_id: CommentId,
) -> Result<usize, Error> {
use crate::schema::comment_like::dsl::comment_like;
let conn = &mut get_conn(pool).await?;
diesel::delete(comment_like.find((person_id, comment_id)))
.execute(conn)
.await
}
}
#[async_trait]
impl Saveable for CommentSaved {
type Form = CommentSavedForm;
async fn save(
pool: &mut DbPool<'_>,
comment_saved_form: &CommentSavedForm,
) -> Result<Self, Error> {
use crate::schema::comment_saved::dsl::{comment_id, comment_saved, person_id};
let conn = &mut get_conn(pool).await?;
insert_into(comment_saved)
.values(comment_saved_form)
.on_conflict((comment_id, person_id))
.do_update()
.set(comment_saved_form)
.get_result::<Self>(conn)
.await
}
async fn unsave(
pool: &mut DbPool<'_>,
comment_saved_form: &CommentSavedForm,
) -> Result<usize, Error> {
use crate::schema::comment_saved::dsl::comment_saved;
let conn = &mut get_conn(pool).await?;
diesel::delete(
comment_saved.find((comment_saved_form.person_id, comment_saved_form.comment_id)),
)
.execute(conn)
.await
}
}
#[cfg(test)]
#[allow(clippy::unwrap_used)]
#[allow(clippy::indexing_slicing)]
mod tests {
use crate::{
newtypes::LanguageId,
source::{
comment::{
Comment,
CommentInsertForm,
CommentLike,
CommentLikeForm,
CommentSaved,
CommentSavedForm,
CommentUpdateForm,
},
community::{Community, CommunityInsertForm},
instance::Instance,
person::{Person, PersonInsertForm},
post::{Post, PostInsertForm},
},
traits::{Crud, Likeable, Saveable},
utils::build_db_pool_for_tests,
};
use diesel_ltree::Ltree;
use pretty_assertions::assert_eq;
use serial_test::serial;
use url::Url;
#[tokio::test]
#[serial]
async fn test_crud() {
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
.unwrap();
let new_person = PersonInsertForm::test_form(inserted_instance.id, "terry");
let inserted_person = Person::create(pool, &new_person).await.unwrap();
let new_community = CommunityInsertForm::builder()
.name("test community".to_string())
.title("nada".to_owned())
.public_key("pubkey".to_string())
.instance_id(inserted_instance.id)
.build();
let inserted_community = Community::create(pool, &new_community).await.unwrap();
let new_post = PostInsertForm::builder()
.name("A test post".into())
.creator_id(inserted_person.id)
.community_id(inserted_community.id)
.build();
let inserted_post = Post::create(pool, &new_post).await.unwrap();
let comment_form = CommentInsertForm::builder()
.content("A test comment".into())
.creator_id(inserted_person.id)
.post_id(inserted_post.id)
.build();
let inserted_comment = Comment::create(pool, &comment_form, None).await.unwrap();
let expected_comment = Comment {
id: inserted_comment.id,
content: "A test comment".into(),
creator_id: inserted_person.id,
post_id: inserted_post.id,
removed: false,
deleted: false,
path: Ltree(format!("0.{}", inserted_comment.id)),
published: inserted_comment.published,
updated: None,
ap_id: Url::parse(&format!(
"https://lemmy-alpha/comment/{}",
inserted_comment.id
))
.unwrap()
.into(),
distinguished: false,
local: true,
language_id: LanguageId::default(),
};
let child_comment_form = CommentInsertForm::builder()
.content("A child comment".into())
.creator_id(inserted_person.id)
.post_id(inserted_post.id)
.build();
let inserted_child_comment =
Comment::create(pool, &child_comment_form, Some(&inserted_comment.path))
.await
.unwrap();
let comment_like_form = CommentLikeForm {
comment_id: inserted_comment.id,
post_id: inserted_post.id,
person_id: inserted_person.id,
score: 1,
};
let inserted_comment_like = CommentLike::like(pool, &comment_like_form).await.unwrap();
let expected_comment_like = CommentLike {
comment_id: inserted_comment.id,
post_id: inserted_post.id,
person_id: inserted_person.id,
published: inserted_comment_like.published,
score: 1,
};
let comment_saved_form = CommentSavedForm {
comment_id: inserted_comment.id,
person_id: inserted_person.id,
};
let inserted_comment_saved = CommentSaved::save(pool, &comment_saved_form).await.unwrap();
let expected_comment_saved = CommentSaved {
comment_id: inserted_comment.id,
person_id: inserted_person.id,
published: inserted_comment_saved.published,
};
let comment_update_form = CommentUpdateForm {
content: Some("A test comment".into()),
..Default::default()
};
let updated_comment = Comment::update(pool, inserted_comment.id, &comment_update_form)
.await
.unwrap();
let read_comment = Comment::read(pool, inserted_comment.id)
.await
.unwrap()
.unwrap();
let like_removed = CommentLike::remove(pool, inserted_person.id, inserted_comment.id)
.await
.unwrap();
let saved_removed = CommentSaved::unsave(pool, &comment_saved_form)
.await
.unwrap();
let num_deleted = Comment::delete(pool, inserted_comment.id).await.unwrap();
Comment::delete(pool, inserted_child_comment.id)
.await
.unwrap();
Post::delete(pool, inserted_post.id).await.unwrap();
Community::delete(pool, inserted_community.id)
.await
.unwrap();
Person::delete(pool, inserted_person.id).await.unwrap();
Instance::delete(pool, inserted_instance.id).await.unwrap();
assert_eq!(expected_comment, read_comment);
assert_eq!(expected_comment, inserted_comment);
assert_eq!(expected_comment, updated_comment);
assert_eq!(expected_comment_like, inserted_comment_like);
assert_eq!(expected_comment_saved, inserted_comment_saved);
assert_eq!(
format!("0.{}.{}", expected_comment.id, inserted_child_comment.id),
inserted_child_comment.path.0,
);
assert_eq!(1, like_removed);
assert_eq!(1, saved_removed);
assert_eq!(1, num_deleted);
}
}