crates/api_crud/src/comment/delete.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   comment::{CommentResponse, DeleteComment},
   5   context::LemmyContext,
   6   utils::{check_community_ban, local_user_view_from_jwt},
   7   websocket::UserOperationCrud,
   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, ConnectionId};
  18
  19 #[async_trait::async_trait(?Send)]
  20 impl PerformCrud for DeleteComment {
  21   type Response = CommentResponse;
  22
  23   #[tracing::instrument(skip(context, websocket_id))]
  24   async fn perform(
  25     &self,
  26     context: &Data<LemmyContext>,
  27     websocket_id: Option<ConnectionId>,
  28   ) -> Result<CommentResponse, LemmyError> {
  29     let data: &DeleteComment = self;
  30     let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
  31
  32     let comment_id = data.comment_id;
  33     let orig_comment = CommentView::read(context.pool(), comment_id, None).await?;
  34
  35     // Dont delete it if its already been deleted.
  36     if orig_comment.comment.deleted == data.deleted {
  37       return Err(LemmyError::from_message("couldnt_update_comment"));
  38     }
  39
  40     check_community_ban(
  41       local_user_view.person.id,
  42       orig_comment.community.id,
  43       context.pool(),
  44     )
  45     .await?;
  46
  47     // Verify that only the creator can delete
  48     if local_user_view.person.id != orig_comment.creator.id {
  49       return Err(LemmyError::from_message("no_comment_edit_allowed"));
  50     }
  51
  52     // Do the delete
  53     let deleted = data.deleted;
  54     let updated_comment = Comment::update(
  55       context.pool(),
  56       comment_id,
  57       &CommentUpdateForm::builder().deleted(Some(deleted)).build(),
  58     )
  59     .await
  60     .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_comment"))?;
  61
  62     let post_id = updated_comment.post_id;
  63     let post = Post::read(context.pool(), post_id).await?;
  64     let recipient_ids = context
  65       .send_local_notifs(
  66         vec![],
  67         &updated_comment,
  68         &local_user_view.person,
  69         &post,
  70         false,
  71       )
  72       .await?;
  73
  74     let res = context
  75       .send_comment_ws_message(
  76         &UserOperationCrud::DeleteComment,
  77         data.comment_id,
  78         websocket_id,
  79         None,
  80         Some(local_user_view.person.id),
  81         recipient_ids,
  82       )
  83       .await?;
  84
  85     Ok(res)
  86   }
  87 }