lemmy/lemmy_db/src/source/post.rs

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use crate::{
naive_now,
schema::{post, post_like, post_read, post_saved},
ApubObject,
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Crud,
Likeable,
Readable,
Saveable,
};
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use diesel::{dsl::*, result::Error, *};
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use serde::Serialize;
use url::{ParseError, Url};
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#[derive(Clone, Queryable, Identifiable, PartialEq, Debug, Serialize)]
#[table_name = "post"]
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pub struct Post {
pub id: i32,
pub name: String,
pub url: Option<String>,
pub body: Option<String>,
pub creator_id: i32,
pub community_id: i32,
pub removed: bool,
pub locked: bool,
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pub published: chrono::NaiveDateTime,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: bool,
pub nsfw: bool,
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pub stickied: bool,
pub embed_title: Option<String>,
pub embed_description: Option<String>,
pub embed_html: Option<String>,
pub thumbnail_url: Option<String>,
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pub ap_id: String,
pub local: bool,
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}
#[derive(Insertable, AsChangeset)]
#[table_name = "post"]
pub struct PostForm {
pub name: String,
pub url: Option<String>,
pub body: Option<String>,
pub creator_id: i32,
pub community_id: i32,
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pub removed: Option<bool>,
pub locked: Option<bool>,
pub published: Option<chrono::NaiveDateTime>,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: Option<bool>,
pub nsfw: bool,
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pub stickied: Option<bool>,
pub embed_title: Option<String>,
pub embed_description: Option<String>,
pub embed_html: Option<String>,
pub thumbnail_url: Option<String>,
pub ap_id: Option<String>,
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pub local: bool,
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}
impl PostForm {
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<PostForm> for Post {
fn read(conn: &PgConnection, post_id: i32) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
post.find(post_id).first::<Self>(conn)
}
fn delete(conn: &PgConnection, post_id: i32) -> Result<usize, Error> {
use crate::schema::post::dsl::*;
diesel::delete(post.find(post_id)).execute(conn)
}
fn create(conn: &PgConnection, new_post: &PostForm) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
insert_into(post).values(new_post).get_result::<Self>(conn)
}
fn update(conn: &PgConnection, post_id: i32, new_post: &PostForm) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
diesel::update(post.find(post_id))
.set(new_post)
.get_result::<Self>(conn)
}
}
impl ApubObject<PostForm> for Post {
fn read_from_apub_id(conn: &PgConnection, object_id: &str) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
post.filter(ap_id.eq(object_id)).first::<Self>(conn)
}
fn upsert(conn: &PgConnection, post_form: &PostForm) -> Result<Post, Error> {
use crate::schema::post::dsl::*;
insert_into(post)
.values(post_form)
.on_conflict(ap_id)
.do_update()
.set(post_form)
.get_result::<Self>(conn)
}
}
impl Post {
pub fn read(conn: &PgConnection, post_id: i32) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
post.filter(id.eq(post_id)).first::<Self>(conn)
}
pub fn list_for_community(
conn: &PgConnection,
the_community_id: i32,
) -> Result<Vec<Self>, Error> {
use crate::schema::post::dsl::*;
post
.filter(community_id.eq(the_community_id))
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.then_order_by(published.desc())
.then_order_by(stickied.desc())
.limit(20)
.load::<Self>(conn)
}
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pub fn update_ap_id(conn: &PgConnection, post_id: i32, apub_id: String) -> Result<Self, Error> {
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use crate::schema::post::dsl::*;
diesel::update(post.find(post_id))
.set(ap_id.eq(apub_id))
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.get_result::<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::post::dsl::*;
let perma_deleted = "*Permananently Deleted*";
let perma_deleted_url = "https://deleted.com";
diesel::update(post.filter(creator_id.eq(for_creator_id)))
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.set((
name.eq(perma_deleted),
url.eq(perma_deleted_url),
body.eq(perma_deleted),
deleted.eq(true),
updated.eq(naive_now()),
))
.get_results::<Self>(conn)
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}
pub fn update_deleted(
conn: &PgConnection,
post_id: i32,
new_deleted: bool,
) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
diesel::update(post.find(post_id))
.set((deleted.eq(new_deleted), updated.eq(naive_now())))
.get_result::<Self>(conn)
}
pub fn update_removed(
conn: &PgConnection,
post_id: i32,
new_removed: bool,
) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
diesel::update(post.find(post_id))
.set((removed.eq(new_removed), updated.eq(naive_now())))
.get_result::<Self>(conn)
}
pub fn update_removed_for_creator(
conn: &PgConnection,
for_creator_id: i32,
for_community_id: Option<i32>,
new_removed: bool,
) -> Result<Vec<Self>, Error> {
use crate::schema::post::dsl::*;
let mut update = diesel::update(post).into_boxed();
update = update.filter(creator_id.eq(for_creator_id));
if let Some(for_community_id) = for_community_id {
update = update.filter(community_id.eq(for_community_id));
}
update
.set((removed.eq(new_removed), updated.eq(naive_now())))
.get_results::<Self>(conn)
}
pub fn update_locked(conn: &PgConnection, post_id: i32, new_locked: bool) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
diesel::update(post.find(post_id))
.set(locked.eq(new_locked))
.get_result::<Self>(conn)
}
pub fn update_stickied(
conn: &PgConnection,
post_id: i32,
new_stickied: bool,
) -> Result<Self, Error> {
use crate::schema::post::dsl::*;
diesel::update(post.find(post_id))
.set(stickied.eq(new_stickied))
.get_result::<Self>(conn)
}
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pub fn is_post_creator(user_id: i32, post_creator_id: i32) -> bool {
user_id == post_creator_id
}
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}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
#[belongs_to(Post)]
#[table_name = "post_like"]
pub struct PostLike {
pub id: i32,
pub post_id: i32,
pub user_id: i32,
pub score: i16,
pub published: chrono::NaiveDateTime,
}
#[derive(Insertable, AsChangeset, Clone)]
#[table_name = "post_like"]
pub struct PostLikeForm {
pub post_id: i32,
pub user_id: i32,
pub score: i16,
}
impl Likeable<PostLikeForm> for PostLike {
fn like(conn: &PgConnection, post_like_form: &PostLikeForm) -> Result<Self, Error> {
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use crate::schema::post_like::dsl::*;
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insert_into(post_like)
.values(post_like_form)
.on_conflict((post_id, user_id))
.do_update()
.set(post_like_form)
.get_result::<Self>(conn)
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}
fn remove(conn: &PgConnection, user_id: i32, post_id: i32) -> Result<usize, Error> {
use crate::schema::post_like::dsl;
diesel::delete(
dsl::post_like
.filter(dsl::post_id.eq(post_id))
.filter(dsl::user_id.eq(user_id)),
)
.execute(conn)
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}
}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
#[belongs_to(Post)]
#[table_name = "post_saved"]
pub struct PostSaved {
pub id: i32,
pub post_id: i32,
pub user_id: i32,
pub published: chrono::NaiveDateTime,
}
#[derive(Insertable, AsChangeset)]
#[table_name = "post_saved"]
pub struct PostSavedForm {
pub post_id: i32,
pub user_id: i32,
}
impl Saveable<PostSavedForm> for PostSaved {
fn save(conn: &PgConnection, post_saved_form: &PostSavedForm) -> Result<Self, Error> {
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use crate::schema::post_saved::dsl::*;
insert_into(post_saved)
.values(post_saved_form)
.on_conflict((post_id, user_id))
.do_update()
.set(post_saved_form)
.get_result::<Self>(conn)
}
fn unsave(conn: &PgConnection, post_saved_form: &PostSavedForm) -> Result<usize, Error> {
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use crate::schema::post_saved::dsl::*;
diesel::delete(
post_saved
.filter(post_id.eq(post_saved_form.post_id))
.filter(user_id.eq(post_saved_form.user_id)),
)
.execute(conn)
}
}
#[derive(Identifiable, Queryable, Associations, PartialEq, Debug)]
#[belongs_to(Post)]
#[table_name = "post_read"]
pub struct PostRead {
pub id: i32,
pub post_id: i32,
pub user_id: i32,
pub published: chrono::NaiveDateTime,
}
#[derive(Insertable, AsChangeset)]
#[table_name = "post_read"]
pub struct PostReadForm {
pub post_id: i32,
pub user_id: i32,
}
impl Readable<PostReadForm> for PostRead {
fn mark_as_read(conn: &PgConnection, post_read_form: &PostReadForm) -> Result<Self, Error> {
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use crate::schema::post_read::dsl::*;
insert_into(post_read)
.values(post_read_form)
.get_result::<Self>(conn)
}
fn mark_as_unread(conn: &PgConnection, post_read_form: &PostReadForm) -> Result<usize, Error> {
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use crate::schema::post_read::dsl::*;
diesel::delete(
post_read
.filter(post_id.eq(post_read_form.post_id))
.filter(user_id.eq(post_read_form.user_id)),
)
.execute(conn)
}
}
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#[cfg(test)]
mod tests {
use crate::{
source::{community::*, post::*, user::*},
tests::establish_unpooled_connection,
ListingType,
SortType,
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};
#[test]
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fn test_crud() {
let conn = establish_unpooled_connection();
let new_user = UserForm {
name: "jim".into(),
preferred_username: None,
password_encrypted: "nope".into(),
email: None,
matrix_user_id: None,
avatar: None,
banner: None,
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admin: false,
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banned: Some(false),
published: None,
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updated: None,
show_nsfw: false,
theme: "browser".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_3".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,
icon: None,
banner: None,
};
let inserted_community = Community::create(&conn, &new_community).unwrap();
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let new_post = PostForm {
name: "A test post".into(),
url: None,
body: None,
creator_id: inserted_user.id,
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,
nsfw: false,
updated: None,
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 expected_post = Post {
id: inserted_post.id,
name: "A test post".into(),
url: None,
body: None,
creator_id: inserted_user.id,
community_id: inserted_community.id,
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published: inserted_post.published,
removed: false,
locked: false,
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stickied: false,
nsfw: false,
deleted: false,
updated: None,
embed_title: None,
embed_description: None,
embed_html: None,
thumbnail_url: None,
ap_id: inserted_post.ap_id.to_owned(),
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local: true,
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};
// Post Like
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let post_like_form = PostLikeForm {
post_id: inserted_post.id,
user_id: inserted_user.id,
score: 1,
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};
let inserted_post_like = PostLike::like(&conn, &post_like_form).unwrap();
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let expected_post_like = PostLike {
id: inserted_post_like.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
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published: inserted_post_like.published,
score: 1,
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};
// Post Save
let post_saved_form = PostSavedForm {
post_id: inserted_post.id,
user_id: inserted_user.id,
};
let inserted_post_saved = PostSaved::save(&conn, &post_saved_form).unwrap();
let expected_post_saved = PostSaved {
id: inserted_post_saved.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
published: inserted_post_saved.published,
};
// Post Read
let post_read_form = PostReadForm {
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post_id: inserted_post.id,
user_id: inserted_user.id,
};
let inserted_post_read = PostRead::mark_as_read(&conn, &post_read_form).unwrap();
let expected_post_read = PostRead {
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id: inserted_post_read.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
published: inserted_post_read.published,
};
let read_post = Post::read(&conn, inserted_post.id).unwrap();
let updated_post = Post::update(&conn, inserted_post.id, &new_post).unwrap();
let like_removed = PostLike::remove(&conn, inserted_user.id, inserted_post.id).unwrap();
let saved_removed = PostSaved::unsave(&conn, &post_saved_form).unwrap();
let read_removed = PostRead::mark_as_unread(&conn, &post_read_form).unwrap();
let num_deleted = 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_post, read_post);
assert_eq!(expected_post, inserted_post);
assert_eq!(expected_post, updated_post);
assert_eq!(expected_post_like, inserted_post_like);
assert_eq!(expected_post_saved, inserted_post_saved);
assert_eq!(expected_post_read, inserted_post_read);
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assert_eq!(1, like_removed);
assert_eq!(1, saved_removed);
assert_eq!(1, read_removed);
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assert_eq!(1, num_deleted);
}
}