Add a fix for double posts / comments. #1080 (#1081)

* Add a fix for double posts / comments. #1080

* Adding a comment.

* Moving upserts to lemmy_db.
pull/1088/head
Dessalines 2020-08-13 11:48:10 -04:00 committed by GitHub
parent 1711eb98b4
commit 8c7c1f204c
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4 changed files with 28 additions and 24 deletions

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@ -148,6 +148,18 @@ impl Comment {
.set((content.eq(new_content), updated.eq(naive_now())))
.get_result::<Self>(conn)
}
pub fn upsert(
conn: &PgConnection,
comment_form: &CommentForm,
) -> Result<Self, Error> {
let existing = Self::read_from_apub_id(conn, &comment_form.ap_id);
match existing {
Err(NotFound {}) => Ok(Self::create(conn, &comment_form)?),
Ok(p) => Ok(Self::update(conn, p.id, &comment_form)?),
Err(e) => Err(e),
}
}
}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug, Clone)]

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@ -155,6 +155,15 @@ impl Post {
pub fn is_post_creator(user_id: i32, post_creator_id: i32) -> bool {
user_id == post_creator_id
}
pub fn upsert(conn: &PgConnection, post_form: &PostForm) -> Result<Post, Error> {
let existing = Self::read_from_apub_id(conn, &post_form.ap_id);
match existing {
Err(NotFound {}) => Ok(Self::create(conn, &post_form)?),
Ok(p) => Ok(Self::update(conn, p.id, &post_form)?),
Err(e) => Err(e),
}
}
}
impl Crud<PostForm> for Post {

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@ -18,7 +18,7 @@ use activitystreams::{base::BaseExt, collection::OrderedCollection, object::Note
use actix_web::client::Client;
use anyhow::{anyhow, Context};
use chrono::NaiveDateTime;
use diesel::{result::Error::NotFound, PgConnection};
use diesel::result::Error::NotFound;
use lemmy_db::{
comment::{Comment, CommentForm},
comment_view::CommentView,
@ -158,7 +158,7 @@ pub async fn search_by_apub_id(
SearchAcceptedObjects::Page(p) => {
let post_form = PostForm::from_apub(&p, client, pool, Some(query_url)).await?;
let p = blocking(pool, move |conn| upsert_post(&post_form, conn)).await??;
let p = blocking(pool, move |conn| Post::upsert(conn, &post_form)).await??;
response.posts = vec![blocking(pool, move |conn| PostView::read(conn, p.id, None)).await??];
response
@ -166,7 +166,7 @@ pub async fn search_by_apub_id(
SearchAcceptedObjects::Comment(c) => {
let comment_form = CommentForm::from_apub(&c, client, pool, Some(query_url)).await?;
let c = blocking(pool, move |conn| upsert_comment(&comment_form, conn)).await??;
let c = blocking(pool, move |conn| Comment::upsert(conn, &comment_form)).await??;
response.comments =
vec![blocking(pool, move |conn| CommentView::read(conn, c.id, None)).await??];
@ -343,15 +343,6 @@ async fn fetch_remote_community(
Ok(community)
}
fn upsert_post(post_form: &PostForm, conn: &PgConnection) -> Result<Post, LemmyError> {
let existing = Post::read_from_apub_id(conn, &post_form.ap_id);
match existing {
Err(NotFound {}) => Ok(Post::create(conn, &post_form)?),
Ok(p) => Ok(Post::update(conn, p.id, &post_form)?),
Err(e) => Err(e.into()),
}
}
pub async fn get_or_fetch_and_insert_post(
post_ap_id: &Url,
client: &Client,
@ -378,15 +369,6 @@ pub async fn get_or_fetch_and_insert_post(
}
}
fn upsert_comment(comment_form: &CommentForm, conn: &PgConnection) -> Result<Comment, LemmyError> {
let existing = Comment::read_from_apub_id(conn, &comment_form.ap_id);
match existing {
Err(NotFound {}) => Ok(Comment::create(conn, &comment_form)?),
Ok(p) => Ok(Comment::update(conn, p.id, &comment_form)?),
Err(e) => Err(e.into()),
}
}
pub async fn get_or_fetch_and_insert_comment(
comment_ap_id: &Url,
client: &Client,

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@ -30,7 +30,6 @@ use lemmy_db::{
comment_view::CommentView,
post::{Post, PostForm},
post_view::PostView,
Crud,
};
use lemmy_utils::{location_info, scrape_text_for_mentions};
@ -65,7 +64,9 @@ async fn receive_create_post(
let post = PostForm::from_apub(&page, client, pool, Some(user.actor_id()?)).await?;
let inserted_post = blocking(pool, move |conn| Post::create(conn, &post)).await??;
// Using an upsert, since likes (which fetch the post), sometimes come in before the create
// resulting in double posts.
let inserted_post = blocking(pool, move |conn| Post::upsert(conn, &post)).await??;
// Refetch the view
let inserted_post_id = inserted_post.id;
@ -98,7 +99,7 @@ async fn receive_create_comment(
let comment = CommentForm::from_apub(&note, client, pool, Some(user.actor_id()?)).await?;
let inserted_comment = blocking(pool, move |conn| Comment::create(conn, &comment)).await??;
let inserted_comment = blocking(pool, move |conn| Comment::upsert(conn, &comment)).await??;
let post_id = inserted_comment.post_id;
let post = blocking(pool, move |conn| Post::read(conn, post_id)).await??;