lemmy/crates/db_schema/src/impls/community.rs

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use crate::{
functions::lower,
naive_now,
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newtypes::{CommunityId, DbUrl, PersonId},
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source::community::{
Community,
CommunityFollower,
CommunityFollowerForm,
CommunityForm,
CommunityModerator,
CommunityModeratorForm,
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CommunityPersonBan,
CommunityPersonBanForm,
CommunitySafe,
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},
traits::{ApubActor, Bannable, Crud, DeleteableOrRemoveable, Followable, Joinable},
};
use diesel::{
dsl::*,
result::Error,
ExpressionMethods,
PgConnection,
QueryDsl,
RunQueryDsl,
TextExpressionMethods,
};
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mod safe_type {
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use crate::{schema::community::*, source::community::Community, traits::ToSafe};
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type Columns = (
id,
name,
title,
description,
removed,
published,
updated,
deleted,
nsfw,
actor_id,
local,
icon,
banner,
hidden,
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);
impl ToSafe for Community {
type SafeColumns = Columns;
fn safe_columns_tuple() -> Self::SafeColumns {
(
id,
name,
title,
description,
removed,
published,
updated,
deleted,
nsfw,
actor_id,
local,
icon,
banner,
hidden,
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)
}
}
}
impl Crud for Community {
type Form = CommunityForm;
type IdType = CommunityId;
fn read(conn: &PgConnection, community_id: CommunityId) -> Result<Self, Error> {
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use crate::schema::community::dsl::*;
community.find(community_id).first::<Self>(conn)
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}
fn delete(conn: &PgConnection, community_id: CommunityId) -> Result<usize, Error> {
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use crate::schema::community::dsl::*;
diesel::delete(community.find(community_id)).execute(conn)
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}
fn create(conn: &PgConnection, new_community: &CommunityForm) -> Result<Self, Error> {
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use crate::schema::community::dsl::*;
insert_into(community)
.values(new_community)
.get_result::<Self>(conn)
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}
fn update(
conn: &PgConnection,
community_id: CommunityId,
new_community: &CommunityForm,
) -> Result<Self, Error> {
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use crate::schema::community::dsl::*;
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diesel::update(community.find(community_id))
.set(new_community)
.get_result::<Self>(conn)
}
}
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impl Community {
pub fn update_deleted(
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conn: &PgConnection,
community_id: CommunityId,
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new_deleted: bool,
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) -> Result<Community, Error> {
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use crate::schema::community::dsl::*;
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diesel::update(community.find(community_id))
.set((deleted.eq(new_deleted), updated.eq(naive_now())))
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.get_result::<Self>(conn)
}
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pub fn update_removed(
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conn: &PgConnection,
community_id: CommunityId,
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new_removed: bool,
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) -> Result<Community, Error> {
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use crate::schema::community::dsl::*;
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diesel::update(community.find(community_id))
.set((removed.eq(new_removed), updated.eq(naive_now())))
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.get_result::<Self>(conn)
}
pub fn distinct_federated_communities(conn: &PgConnection) -> Result<Vec<DbUrl>, Error> {
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use crate::schema::community::dsl::*;
community.select(actor_id).distinct().load::<DbUrl>(conn)
}
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pub fn upsert(conn: &PgConnection, community_form: &CommunityForm) -> Result<Community, Error> {
use crate::schema::community::dsl::*;
insert_into(community)
.values(community_form)
.on_conflict(actor_id)
.do_update()
.set(community_form)
.get_result::<Self>(conn)
}
}
impl Joinable for CommunityModerator {
type Form = CommunityModeratorForm;
fn join(
conn: &PgConnection,
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community_moderator_form: &CommunityModeratorForm,
) -> Result<Self, Error> {
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use crate::schema::community_moderator::dsl::*;
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insert_into(community_moderator)
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.values(community_moderator_form)
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.get_result::<Self>(conn)
}
fn leave(
conn: &PgConnection,
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community_moderator_form: &CommunityModeratorForm,
) -> Result<usize, Error> {
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use crate::schema::community_moderator::dsl::*;
diesel::delete(
community_moderator
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.filter(community_id.eq(community_moderator_form.community_id))
.filter(person_id.eq(community_moderator_form.person_id)),
)
.execute(conn)
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}
}
impl DeleteableOrRemoveable for CommunitySafe {
fn blank_out_deleted_or_removed_info(mut self) -> Self {
self.title = "".into();
self.description = None;
self.icon = None;
self.banner = None;
self
}
}
impl DeleteableOrRemoveable for Community {
fn blank_out_deleted_or_removed_info(mut self) -> Self {
self.title = "".into();
self.description = None;
self.icon = None;
self.banner = None;
self
}
}
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impl CommunityModerator {
pub fn delete_for_community(
conn: &PgConnection,
for_community_id: CommunityId,
) -> Result<usize, Error> {
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use crate::schema::community_moderator::dsl::*;
diesel::delete(community_moderator.filter(community_id.eq(for_community_id))).execute(conn)
}
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pub fn get_person_moderated_communities(
conn: &PgConnection,
for_person_id: PersonId,
) -> Result<Vec<CommunityId>, Error> {
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use crate::schema::community_moderator::dsl::*;
community_moderator
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.filter(person_id.eq(for_person_id))
.select(community_id)
.load::<CommunityId>(conn)
}
}
impl Bannable for CommunityPersonBan {
type Form = CommunityPersonBanForm;
fn ban(
conn: &PgConnection,
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community_person_ban_form: &CommunityPersonBanForm,
) -> Result<Self, Error> {
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use crate::schema::community_person_ban::dsl::*;
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insert_into(community_person_ban)
.values(community_person_ban_form)
.on_conflict((community_id, person_id))
.do_update()
.set(community_person_ban_form)
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.get_result::<Self>(conn)
}
fn unban(
conn: &PgConnection,
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community_person_ban_form: &CommunityPersonBanForm,
) -> Result<usize, Error> {
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use crate::schema::community_person_ban::dsl::*;
diesel::delete(
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community_person_ban
.filter(community_id.eq(community_person_ban_form.community_id))
.filter(person_id.eq(community_person_ban_form.person_id)),
)
.execute(conn)
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}
}
impl Followable for CommunityFollower {
type Form = CommunityFollowerForm;
fn follow(
conn: &PgConnection,
community_follower_form: &CommunityFollowerForm,
) -> Result<Self, Error> {
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use crate::schema::community_follower::dsl::*;
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insert_into(community_follower)
.values(community_follower_form)
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.on_conflict((community_id, person_id))
.do_update()
.set(community_follower_form)
.get_result::<Self>(conn)
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}
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fn follow_accepted(
conn: &PgConnection,
community_id_: CommunityId,
person_id_: PersonId,
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) -> Result<Self, Error>
where
Self: Sized,
{
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use crate::schema::community_follower::dsl::*;
diesel::update(
community_follower
.filter(community_id.eq(community_id_))
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.filter(person_id.eq(person_id_)),
)
.set(pending.eq(true))
.get_result::<Self>(conn)
}
fn unfollow(
conn: &PgConnection,
community_follower_form: &CommunityFollowerForm,
) -> Result<usize, Error> {
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use crate::schema::community_follower::dsl::*;
diesel::delete(
community_follower
.filter(community_id.eq(&community_follower_form.community_id))
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.filter(person_id.eq(&community_follower_form.person_id)),
)
.execute(conn)
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}
// TODO: this function name only makes sense if you call it with a remote community. for a local
// community, it will also return true if only remote followers exist
fn has_local_followers(conn: &PgConnection, community_id_: CommunityId) -> Result<bool, Error> {
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use crate::schema::community_follower::dsl::*;
diesel::select(exists(
community_follower.filter(community_id.eq(community_id_)),
))
.get_result(conn)
}
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}
impl ApubActor for Community {
fn read_from_apub_id(conn: &PgConnection, object_id: &DbUrl) -> Result<Option<Self>, Error> {
use crate::schema::community::dsl::*;
Ok(
community
.filter(actor_id.eq(object_id))
.first::<Community>(conn)
.ok()
.map(Into::into),
)
}
fn read_from_name(conn: &PgConnection, community_name: &str) -> Result<Community, Error> {
use crate::schema::community::dsl::*;
community
.filter(local.eq(true))
.filter(lower(name).eq(lower(community_name)))
.first::<Self>(conn)
}
fn read_from_name_and_domain(
conn: &PgConnection,
community_name: &str,
protocol_domain: &str,
) -> Result<Community, Error> {
use crate::schema::community::dsl::*;
community
.filter(lower(name).eq(lower(community_name)))
.filter(actor_id.like(format!("{}%", protocol_domain)))
.first::<Self>(conn)
}
}
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#[cfg(test)]
mod tests {
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use crate::{
establish_unpooled_connection,
source::{community::*, person::*},
traits::{Bannable, Crud, Followable, Joinable},
};
use serial_test::serial;
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#[test]
#[serial]
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fn test_crud() {
let conn = establish_unpooled_connection();
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let new_person = PersonForm {
name: "bobbee".into(),
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..PersonForm::default()
};
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let inserted_person = Person::create(&conn, &new_person).unwrap();
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let new_community = CommunityForm {
name: "TIL".into(),
title: "nada".to_owned(),
public_key: "nada".to_owned(),
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..CommunityForm::default()
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};
let inserted_community = Community::create(&conn, &new_community).unwrap();
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let expected_community = Community {
id: inserted_community.id,
name: "TIL".into(),
title: "nada".to_owned(),
description: None,
nsfw: false,
removed: false,
deleted: false,
published: inserted_community.published,
updated: None,
actor_id: inserted_community.actor_id.to_owned(),
local: true,
private_key: None,
public_key: "nada".to_owned(),
last_refreshed_at: inserted_community.published,
icon: None,
banner: None,
followers_url: inserted_community.followers_url.to_owned(),
inbox_url: inserted_community.inbox_url.to_owned(),
shared_inbox_url: None,
hidden: false,
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};
let community_follower_form = CommunityFollowerForm {
community_id: inserted_community.id,
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person_id: inserted_person.id,
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pending: false,
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};
let inserted_community_follower =
CommunityFollower::follow(&conn, &community_follower_form).unwrap();
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let expected_community_follower = CommunityFollower {
id: inserted_community_follower.id,
community_id: inserted_community.id,
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person_id: inserted_person.id,
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pending: Some(false),
published: inserted_community_follower.published,
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};
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let community_moderator_form = CommunityModeratorForm {
community_id: inserted_community.id,
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person_id: inserted_person.id,
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};
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let inserted_community_moderator =
CommunityModerator::join(&conn, &community_moderator_form).unwrap();
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let expected_community_moderator = CommunityModerator {
id: inserted_community_moderator.id,
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community_id: inserted_community.id,
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person_id: inserted_person.id,
published: inserted_community_moderator.published,
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};
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let community_person_ban_form = CommunityPersonBanForm {
community_id: inserted_community.id,
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person_id: inserted_person.id,
expires: None,
};
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let inserted_community_person_ban =
CommunityPersonBan::ban(&conn, &community_person_ban_form).unwrap();
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let expected_community_person_ban = CommunityPersonBan {
id: inserted_community_person_ban.id,
community_id: inserted_community.id,
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person_id: inserted_person.id,
published: inserted_community_person_ban.published,
expires: None,
};
let read_community = Community::read(&conn, inserted_community.id).unwrap();
let updated_community =
Community::update(&conn, inserted_community.id, &new_community).unwrap();
let ignored_community = CommunityFollower::unfollow(&conn, &community_follower_form).unwrap();
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let left_community = CommunityModerator::leave(&conn, &community_moderator_form).unwrap();
let unban = CommunityPersonBan::unban(&conn, &community_person_ban_form).unwrap();
let num_deleted = Community::delete(&conn, inserted_community.id).unwrap();
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Person::delete(&conn, inserted_person.id).unwrap();
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assert_eq!(expected_community, read_community);
assert_eq!(expected_community, inserted_community);
assert_eq!(expected_community, updated_community);
assert_eq!(expected_community_follower, inserted_community_follower);
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assert_eq!(expected_community_moderator, inserted_community_moderator);
assert_eq!(expected_community_person_ban, inserted_community_person_ban);
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assert_eq!(1, ignored_community);
assert_eq!(1, left_community);
assert_eq!(1, unban);
// assert_eq!(2, loaded_count);
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assert_eq!(1, num_deleted);
}
}