lemmy/crates/api/src/community/add_mod.rs
Dessalines d075acce43
Make all single-fetch database calls return an Option. (#4617)
- Diesel ordinarily throws an error when no results are returned for a
  single fetch, which is a bit confusing. This PR ensures that the
  missing value cases are all caught, and wrapped with new LemmyErrors,
  rather than diesel errors.
- Fixes #4601
2024-04-16 14:48:15 +02:00

86 lines
2.7 KiB
Rust

use activitypub_federation::config::Data;
use actix_web::web::Json;
use lemmy_api_common::{
community::{AddModToCommunity, AddModToCommunityResponse},
context::LemmyContext,
send_activity::{ActivityChannel, SendActivityData},
utils::check_community_mod_action,
};
use lemmy_db_schema::{
source::{
community::{Community, CommunityModerator, CommunityModeratorForm},
moderator::{ModAddCommunity, ModAddCommunityForm},
},
traits::{Crud, Joinable},
};
use lemmy_db_views::structs::LocalUserView;
use lemmy_db_views_actor::structs::CommunityModeratorView;
use lemmy_utils::error::{LemmyErrorExt, LemmyErrorType, LemmyResult};
#[tracing::instrument(skip(context))]
pub async fn add_mod_to_community(
data: Json<AddModToCommunity>,
context: Data<LemmyContext>,
local_user_view: LocalUserView,
) -> LemmyResult<Json<AddModToCommunityResponse>> {
let community_id = data.community_id;
// Verify that only mods or admins can add mod
check_community_mod_action(
&local_user_view.person,
community_id,
false,
&mut context.pool(),
)
.await?;
let community = Community::read(&mut context.pool(), community_id)
.await?
.ok_or(LemmyErrorType::CouldntFindCommunity)?;
if local_user_view.local_user.admin && !community.local {
Err(LemmyErrorType::NotAModerator)?
}
// Update in local database
let community_moderator_form = CommunityModeratorForm {
community_id: data.community_id,
person_id: data.person_id,
};
if data.added {
CommunityModerator::join(&mut context.pool(), &community_moderator_form)
.await
.with_lemmy_type(LemmyErrorType::CommunityModeratorAlreadyExists)?;
} else {
CommunityModerator::leave(&mut context.pool(), &community_moderator_form)
.await
.with_lemmy_type(LemmyErrorType::CommunityModeratorAlreadyExists)?;
}
// Mod tables
let form = ModAddCommunityForm {
mod_person_id: local_user_view.person.id,
other_person_id: data.person_id,
community_id: data.community_id,
removed: Some(!data.added),
};
ModAddCommunity::create(&mut context.pool(), &form).await?;
// Note: in case a remote mod is added, this returns the old moderators list, it will only get
// updated once we receive an activity from the community (like `Announce/Add/Moderator`)
let community_id = data.community_id;
let moderators = CommunityModeratorView::for_community(&mut context.pool(), community_id).await?;
ActivityChannel::submit_activity(
SendActivityData::AddModToCommunity {
moderator: local_user_view.person,
community_id: data.community_id,
target: data.person_id,
added: data.added,
},
&context,
)
.await?;
Ok(Json(AddModToCommunityResponse { moderators }))
}