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, get_local_user_view_from_jwt},
   7   websocket::{
   8     send::{send_comment_ws_message, send_local_notifs},
   9     UserOperationCrud,
  10   },
  11 };
  12 use lemmy_db_schema::{
  13   source::{
  14     comment::{Comment, CommentUpdateForm},
  15     post::Post,
  16   },
  17   traits::Crud,
  18 };
  19 use lemmy_db_views::structs::CommentView;
  20 use lemmy_utils::{error::LemmyError, ConnectionId};
  21
  22 #[async_trait::async_trait(?Send)]
  23 impl PerformCrud for DeleteComment {
  24   type Response = CommentResponse;
  25
  26   #[tracing::instrument(skip(context, websocket_id))]
  27   async fn perform(
  28     &self,
  29     context: &Data<LemmyContext>,
  30     websocket_id: Option<ConnectionId>,
  31   ) -> Result<CommentResponse, LemmyError> {
  32     let data: &DeleteComment = self;
  33     let local_user_view =
  34       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  35
  36     let comment_id = data.comment_id;
  37     let orig_comment = CommentView::read(context.pool(), comment_id, None).await?;
  38
  39     // Dont delete it if its already been deleted.
  40     if orig_comment.comment.deleted == data.deleted {
  41       return Err(LemmyError::from_message("couldnt_update_comment"));
  42     }
  43
  44     check_community_ban(
  45       local_user_view.person.id,
  46       orig_comment.community.id,
  47       context.pool(),
  48     )
  49     .await?;
  50
  51     // Verify that only the creator can delete
  52     if local_user_view.person.id != orig_comment.creator.id {
  53       return Err(LemmyError::from_message("no_comment_edit_allowed"));
  54     }
  55
  56     // Do the delete
  57     let deleted = data.deleted;
  58     let updated_comment = Comment::update(
  59       context.pool(),
  60       comment_id,
  61       &CommentUpdateForm::builder().deleted(Some(deleted)).build(),
  62     )
  63     .await
  64     .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_comment"))?;
  65
  66     let post_id = updated_comment.post_id;
  67     let post = Post::read(context.pool(), post_id).await?;
  68     let recipient_ids = send_local_notifs(
  69       vec![],
  70       &updated_comment,
  71       &local_user_view.person,
  72       &post,
  73       false,
  74       context,
  75     )
  76     .await?;
  77
  78     let res = send_comment_ws_message(
  79       data.comment_id,
  80       UserOperationCrud::DeleteComment,
  81       websocket_id,
  82       None, // TODO a comment delete might clear forms?
  83       Some(local_user_view.person.id),
  84       recipient_ids,
  85       context,
  86     )
  87     .await?;
  88
  89     Ok(res)
  90   }
  91 }