crates/api_crud/src/post/delete.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   context::LemmyContext,
   5   post::{DeletePost, PostResponse},
   6   utils::{check_community_ban, check_community_deleted_or_removed, get_local_user_view_from_jwt},
   7   websocket::UserOperationCrud,
   8 };
   9 use lemmy_db_schema::{
  10   source::post::{Post, PostUpdateForm},
  11   traits::Crud,
  12 };
  13 use lemmy_utils::{error::LemmyError, ConnectionId};
  14
  15 #[async_trait::async_trait(?Send)]
  16 impl PerformCrud for DeletePost {
  17   type Response = PostResponse;
  18
  19   #[tracing::instrument(skip(context, websocket_id))]
  20   async fn perform(
  21     &self,
  22     context: &Data<LemmyContext>,
  23     websocket_id: Option<ConnectionId>,
  24   ) -> Result<PostResponse, LemmyError> {
  25     let data: &DeletePost = self;
  26     let local_user_view =
  27       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  28
  29     let post_id = data.post_id;
  30     let orig_post = Post::read(context.pool(), post_id).await?;
  31
  32     // Dont delete it if its already been deleted.
  33     if orig_post.deleted == data.deleted {
  34       return Err(LemmyError::from_message("couldnt_update_post"));
  35     }
  36
  37     check_community_ban(
  38       local_user_view.person.id,
  39       orig_post.community_id,
  40       context.pool(),
  41     )
  42     .await?;
  43     check_community_deleted_or_removed(orig_post.community_id, context.pool()).await?;
  44
  45     // Verify that only the creator can delete
  46     if !Post::is_post_creator(local_user_view.person.id, orig_post.creator_id) {
  47       return Err(LemmyError::from_message("no_post_edit_allowed"));
  48     }
  49
  50     // Update the post
  51     let post_id = data.post_id;
  52     let deleted = data.deleted;
  53     Post::update(
  54       context.pool(),
  55       post_id,
  56       &PostUpdateForm::builder().deleted(Some(deleted)).build(),
  57     )
  58     .await?;
  59
  60     let res = context
  61       .send_post_ws_message(
  62         &UserOperationCrud::DeletePost,
  63         data.post_id,
  64         websocket_id,
  65         Some(local_user_view.person.id),
  66       )
  67       .await?;
  68
  69     Ok(res)
  70   }
  71 }