lemmy/crates/api_crud/src/comment/delete.rs
Dessalines d075acce43
Make all single-fetch database calls return an Option. (#4617)
- Diesel ordinarily throws an error when no results are returned for a
  single fetch, which is a bit confusing. This PR ensures that the
  missing value cases are all caught, and wrapped with new LemmyErrors,
  rather than diesel errors.
- Fixes #4601
2024-04-16 14:48:15 +02:00

81 lines
2.1 KiB
Rust

use activitypub_federation::config::Data;
use actix_web::web::Json;
use lemmy_api_common::{
build_response::{build_comment_response, send_local_notifs},
comment::{CommentResponse, DeleteComment},
context::LemmyContext,
send_activity::{ActivityChannel, SendActivityData},
utils::check_community_user_action,
};
use lemmy_db_schema::{
source::comment::{Comment, CommentUpdateForm},
traits::Crud,
};
use lemmy_db_views::structs::{CommentView, LocalUserView};
use lemmy_utils::error::{LemmyErrorExt, LemmyErrorType, LemmyResult};
#[tracing::instrument(skip(context))]
pub async fn delete_comment(
data: Json<DeleteComment>,
context: Data<LemmyContext>,
local_user_view: LocalUserView,
) -> LemmyResult<Json<CommentResponse>> {
let comment_id = data.comment_id;
let orig_comment = CommentView::read(&mut context.pool(), comment_id, None)
.await?
.ok_or(LemmyErrorType::CouldntFindComment)?;
// Dont delete it if its already been deleted.
if orig_comment.comment.deleted == data.deleted {
Err(LemmyErrorType::CouldntUpdateComment)?
}
check_community_user_action(
&local_user_view.person,
orig_comment.community.id,
&mut context.pool(),
)
.await?;
// Verify that only the creator can delete
if local_user_view.person.id != orig_comment.creator.id {
Err(LemmyErrorType::NoCommentEditAllowed)?
}
// Do the delete
let deleted = data.deleted;
let updated_comment = Comment::update(
&mut context.pool(),
comment_id,
&CommentUpdateForm {
deleted: Some(deleted),
..Default::default()
},
)
.await
.with_lemmy_type(LemmyErrorType::CouldntUpdateComment)?;
let recipient_ids =
send_local_notifs(vec![], comment_id, &local_user_view.person, false, &context).await?;
let updated_comment_id = updated_comment.id;
ActivityChannel::submit_activity(
SendActivityData::DeleteComment(
updated_comment,
local_user_view.person.clone(),
orig_comment.community,
),
&context,
)
.await?;
Ok(Json(
build_comment_response(
&context,
updated_comment_id,
Some(local_user_view),
recipient_ids,
)
.await?,
))
}