crates/api_crud/src/comment/delete.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   build_response::{build_comment_response, send_local_notifs},
   5   comment::{CommentResponse, DeleteComment},
   6   context::LemmyContext,
   7   utils::{check_community_ban, local_user_view_from_jwt},
   8 };
   9 use lemmy_db_schema::{
  10   source::{
  11     comment::{Comment, CommentUpdateForm},
  12     post::Post,
  13   },
  14   traits::Crud,
  15 };
  16 use lemmy_db_views::structs::CommentView;
  17 use lemmy_utils::error::{LemmyError, LemmyErrorExt, LemmyErrorType};
  18 use std::ops::Deref;
  19
  20 #[async_trait::async_trait(?Send)]
  21 impl PerformCrud for DeleteComment {
  22   type Response = CommentResponse;
  23
  24   #[tracing::instrument(skip(context))]
  25   async fn perform(&self, context: &Data<LemmyContext>) -> Result<CommentResponse, LemmyError> {
  26     let data: &DeleteComment = self;
  27     let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
  28
  29     let comment_id = data.comment_id;
  30     let orig_comment = CommentView::read(&mut context.pool(), comment_id, None).await?;
  31
  32     // Dont delete it if its already been deleted.
  33     if orig_comment.comment.deleted == data.deleted {
  34       return Err(LemmyErrorType::CouldntUpdateComment)?;
  35     }
  36
  37     check_community_ban(
  38       local_user_view.person.id,
  39       orig_comment.community.id,
  40       &mut context.pool(),
  41     )
  42     .await?;
  43
  44     // Verify that only the creator can delete
  45     if local_user_view.person.id != orig_comment.creator.id {
  46       return Err(LemmyErrorType::NoCommentEditAllowed)?;
  47     }
  48
  49     // Do the delete
  50     let deleted = data.deleted;
  51     let updated_comment = Comment::update(
  52       &mut context.pool(),
  53       comment_id,
  54       &CommentUpdateForm::builder().deleted(Some(deleted)).build(),
  55     )
  56     .await
  57     .with_lemmy_type(LemmyErrorType::CouldntUpdateComment)?;
  58
  59     let post_id = updated_comment.post_id;
  60     let post = Post::read(&mut context.pool(), post_id).await?;
  61     let recipient_ids = send_local_notifs(
  62       vec![],
  63       &updated_comment,
  64       &local_user_view.person,
  65       &post,
  66       false,
  67       context,
  68     )
  69     .await?;
  70
  71     build_comment_response(
  72       context.deref(),
  73       updated_comment.id,
  74       Some(local_user_view),
  75       None,
  76       recipient_ids,
  77     )
  78     .await
  79   }
  80 }