lemmy/server/lemmy_db/src/comment.rs

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use super::{post::Post};
use crate::schema::{comment, comment_like, comment_saved};
use url::{ParseError, Url};
use diesel::{dsl::*, result::Error, *};
use serde::{Deserialize, Serialize};
use crate::{Crud, naive_now, Likeable, Saveable};
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// WITH RECURSIVE MyTree AS (
// SELECT * FROM comment WHERE parent_id IS NULL
// UNION ALL
// SELECT m.* FROM comment AS m JOIN MyTree AS t ON m.parent_id = t.id
// )
// SELECT * FROM MyTree;
#[derive(Clone, Queryable, Associations, Identifiable, PartialEq, Debug, Serialize, Deserialize)]
#[belongs_to(Post)]
#[table_name = "comment"]
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pub struct Comment {
pub id: i32,
pub creator_id: i32,
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pub post_id: i32,
pub parent_id: Option<i32>,
pub content: String,
pub removed: bool,
pub read: bool, // Whether the recipient has read the comment or not
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pub published: chrono::NaiveDateTime,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: bool,
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pub ap_id: String,
pub local: bool,
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}
#[derive(Insertable, AsChangeset, Clone)]
#[table_name = "comment"]
pub struct CommentForm {
pub creator_id: i32,
pub post_id: i32,
pub parent_id: Option<i32>,
pub content: String,
pub removed: Option<bool>,
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pub read: Option<bool>,
pub published: Option<chrono::NaiveDateTime>,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: Option<bool>,
pub ap_id: Option<String>,
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pub local: bool,
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}
impl CommentForm {
pub fn get_ap_id(&self) -> Result<Url, ParseError> {
Url::parse(&self.ap_id.as_ref().unwrap_or(&"not_a_url".to_string()))
}
}
impl Crud<CommentForm> for Comment {
fn read(conn: &PgConnection, comment_id: i32) -> Result<Self, Error> {
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use crate::schema::comment::dsl::*;
comment.find(comment_id).first::<Self>(conn)
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}
fn delete(conn: &PgConnection, comment_id: i32) -> Result<usize, Error> {
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use crate::schema::comment::dsl::*;
diesel::delete(comment.find(comment_id)).execute(conn)
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}
fn create(conn: &PgConnection, comment_form: &CommentForm) -> Result<Self, Error> {
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use crate::schema::comment::dsl::*;
insert_into(comment)
.values(comment_form)
.get_result::<Self>(conn)
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}
fn update(
conn: &PgConnection,
comment_id: i32,
comment_form: &CommentForm,
) -> Result<Self, Error> {
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use crate::schema::comment::dsl::*;
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diesel::update(comment.find(comment_id))
.set(comment_form)
.get_result::<Self>(conn)
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}
}
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impl Comment {
pub fn update_ap_id(
conn: &PgConnection,
comment_id: i32,
apub_id: String,
) -> Result<Self, Error> {
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use crate::schema::comment::dsl::*;
diesel::update(comment.find(comment_id))
.set(ap_id.eq(apub_id))
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.get_result::<Self>(conn)
}
pub fn read_from_apub_id(conn: &PgConnection, object_id: &str) -> Result<Self, Error> {
use crate::schema::comment::dsl::*;
comment.filter(ap_id.eq(object_id)).first::<Self>(conn)
}
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pub fn permadelete_for_creator(
conn: &PgConnection,
for_creator_id: i32,
) -> Result<Vec<Self>, Error> {
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use crate::schema::comment::dsl::*;
diesel::update(comment.filter(creator_id.eq(for_creator_id)))
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.set((
content.eq("*Permananently Deleted*"),
deleted.eq(true),
updated.eq(naive_now()),
))
.get_results::<Self>(conn)
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}
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pub fn update_deleted(
conn: &PgConnection,
comment_id: i32,
new_deleted: bool,
) -> Result<Self, Error> {
use crate::schema::comment::dsl::*;
diesel::update(comment.find(comment_id))
.set((deleted.eq(new_deleted), updated.eq(naive_now())))
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.get_result::<Self>(conn)
}
pub fn update_removed(
conn: &PgConnection,
comment_id: i32,
new_removed: bool,
) -> Result<Self, Error> {
use crate::schema::comment::dsl::*;
diesel::update(comment.find(comment_id))
.set((removed.eq(new_removed), updated.eq(naive_now())))
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.get_result::<Self>(conn)
}
pub fn update_removed_for_creator(
conn: &PgConnection,
for_creator_id: i32,
new_removed: bool,
) -> Result<Vec<Self>, Error> {
use crate::schema::comment::dsl::*;
diesel::update(comment.filter(creator_id.eq(for_creator_id)))
.set((removed.eq(new_removed), updated.eq(naive_now())))
.get_results::<Self>(conn)
}
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pub fn update_read(conn: &PgConnection, comment_id: i32, new_read: bool) -> Result<Self, Error> {
use crate::schema::comment::dsl::*;
diesel::update(comment.find(comment_id))
.set(read.eq(new_read))
.get_result::<Self>(conn)
}
pub fn update_content(
conn: &PgConnection,
comment_id: i32,
new_content: &str,
) -> Result<Self, Error> {
use crate::schema::comment::dsl::*;
diesel::update(comment.find(comment_id))
.set((content.eq(new_content), updated.eq(naive_now())))
.get_result::<Self>(conn)
}
pub fn upsert(conn: &PgConnection, comment_form: &CommentForm) -> Result<Self, Error> {
use crate::schema::comment::dsl::*;
insert_into(comment)
.values(comment_form)
.on_conflict(ap_id)
.do_update()
.set(comment_form)
.get_result::<Self>(conn)
}
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}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug, Clone)]
#[belongs_to(Comment)]
#[table_name = "comment_like"]
pub struct CommentLike {
pub id: i32,
pub user_id: i32,
pub comment_id: i32,
pub post_id: i32,
pub score: i16,
pub published: chrono::NaiveDateTime,
}
#[derive(Insertable, AsChangeset, Clone)]
#[table_name = "comment_like"]
pub struct CommentLikeForm {
pub user_id: i32,
pub comment_id: i32,
pub post_id: i32,
pub score: i16,
}
impl Likeable<CommentLikeForm> for CommentLike {
fn like(conn: &PgConnection, comment_like_form: &CommentLikeForm) -> Result<Self, Error> {
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use crate::schema::comment_like::dsl::*;
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insert_into(comment_like)
.values(comment_like_form)
.get_result::<Self>(conn)
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}
fn remove(conn: &PgConnection, user_id: i32, comment_id: i32) -> Result<usize, Error> {
use crate::schema::comment_like::dsl;
diesel::delete(
dsl::comment_like
.filter(dsl::comment_id.eq(comment_id))
.filter(dsl::user_id.eq(user_id)),
)
.execute(conn)
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}
}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
#[belongs_to(Comment)]
#[table_name = "comment_saved"]
pub struct CommentSaved {
pub id: i32,
pub comment_id: i32,
pub user_id: i32,
pub published: chrono::NaiveDateTime,
}
#[derive(Insertable, AsChangeset, Clone)]
#[table_name = "comment_saved"]
pub struct CommentSavedForm {
pub comment_id: i32,
pub user_id: i32,
}
impl Saveable<CommentSavedForm> for CommentSaved {
fn save(conn: &PgConnection, comment_saved_form: &CommentSavedForm) -> Result<Self, Error> {
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use crate::schema::comment_saved::dsl::*;
insert_into(comment_saved)
.values(comment_saved_form)
.get_result::<Self>(conn)
}
fn unsave(conn: &PgConnection, comment_saved_form: &CommentSavedForm) -> Result<usize, Error> {
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use crate::schema::comment_saved::dsl::*;
diesel::delete(
comment_saved
.filter(comment_id.eq(comment_saved_form.comment_id))
.filter(user_id.eq(comment_saved_form.user_id)),
)
.execute(conn)
}
}
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#[cfg(test)]
mod tests {
use crate::{comment::*, community::*, post::*, tests::establish_unpooled_connection, user::*, SortType, ListingType};
use crate::Crud;
#[test]
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fn test_crud() {
let conn = establish_unpooled_connection();
let new_user = UserForm {
name: "terry".into(),
preferred_username: None,
password_encrypted: "nope".into(),
email: None,
matrix_user_id: None,
avatar: None,
banner: None,
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admin: false,
banned: false,
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updated: None,
show_nsfw: false,
theme: "darkly".into(),
default_sort_type: SortType::Hot as i16,
default_listing_type: ListingType::Subscribed as i16,
lang: "browser".into(),
show_avatars: true,
send_notifications_to_email: false,
actor_id: None,
bio: None,
local: true,
private_key: None,
public_key: None,
last_refreshed_at: None,
};
let inserted_user = User_::create(&conn, &new_user).unwrap();
let new_community = CommunityForm {
name: "test community".to_string(),
title: "nada".to_owned(),
description: None,
category_id: 1,
creator_id: inserted_user.id,
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removed: None,
deleted: None,
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updated: None,
nsfw: false,
actor_id: None,
local: true,
private_key: None,
public_key: None,
last_refreshed_at: None,
published: None,
banner: None,
icon: None,
};
let inserted_community = Community::create(&conn, &new_community).unwrap();
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let new_post = PostForm {
name: "A test post".into(),
creator_id: inserted_user.id,
url: None,
body: None,
community_id: inserted_community.id,
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removed: None,
deleted: None,
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locked: None,
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stickied: None,
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updated: None,
nsfw: false,
embed_title: None,
embed_description: None,
embed_html: None,
thumbnail_url: None,
ap_id: None,
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local: true,
published: None,
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};
let inserted_post = Post::create(&conn, &new_post).unwrap();
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let comment_form = CommentForm {
content: "A test comment".into(),
creator_id: inserted_user.id,
post_id: inserted_post.id,
removed: None,
deleted: None,
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read: None,
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parent_id: None,
published: None,
updated: None,
ap_id: None,
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local: true,
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};
let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
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let expected_comment = Comment {
id: inserted_comment.id,
content: "A test comment".into(),
creator_id: inserted_user.id,
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post_id: inserted_post.id,
removed: false,
deleted: false,
read: false,
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parent_id: None,
published: inserted_comment.published,
updated: None,
ap_id: inserted_comment.ap_id.to_owned(),
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local: true,
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};
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let child_comment_form = CommentForm {
content: "A child comment".into(),
creator_id: inserted_user.id,
post_id: inserted_post.id,
parent_id: Some(inserted_comment.id),
removed: None,
deleted: None,
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read: None,
published: None,
updated: None,
ap_id: None,
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local: true,
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};
let inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
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// Comment Like
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let comment_like_form = CommentLikeForm {
comment_id: inserted_comment.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
score: 1,
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};
let inserted_comment_like = CommentLike::like(&conn, &comment_like_form).unwrap();
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let expected_comment_like = CommentLike {
id: inserted_comment_like.id,
comment_id: inserted_comment.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
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published: inserted_comment_like.published,
score: 1,
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};
// Comment Saved
let comment_saved_form = CommentSavedForm {
comment_id: inserted_comment.id,
user_id: inserted_user.id,
};
let inserted_comment_saved = CommentSaved::save(&conn, &comment_saved_form).unwrap();
let expected_comment_saved = CommentSaved {
id: inserted_comment_saved.id,
comment_id: inserted_comment.id,
user_id: inserted_user.id,
published: inserted_comment_saved.published,
};
let read_comment = Comment::read(&conn, inserted_comment.id).unwrap();
let updated_comment = Comment::update(&conn, inserted_comment.id, &comment_form).unwrap();
let like_removed = CommentLike::remove(&conn, inserted_user.id, inserted_comment.id).unwrap();
let saved_removed = CommentSaved::unsave(&conn, &comment_saved_form).unwrap();
let num_deleted = Comment::delete(&conn, inserted_comment.id).unwrap();
Comment::delete(&conn, inserted_child_comment.id).unwrap();
Post::delete(&conn, inserted_post.id).unwrap();
Community::delete(&conn, inserted_community.id).unwrap();
User_::delete(&conn, inserted_user.id).unwrap();
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assert_eq!(expected_comment, read_comment);
assert_eq!(expected_comment, inserted_comment);
assert_eq!(expected_comment, updated_comment);
assert_eq!(expected_comment_like, inserted_comment_like);
assert_eq!(expected_comment_saved, inserted_comment_saved);
assert_eq!(
expected_comment.id,
inserted_child_comment.parent_id.unwrap()
);
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assert_eq!(1, like_removed);
assert_eq!(1, saved_removed);
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assert_eq!(1, num_deleted);
}
}