lemmy/crates/api_crud/src/community/list.rs

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use crate::PerformCrud;
use actix_web::web::Data;
use lemmy_api_common::{
community::{ListCommunities, ListCommunitiesResponse},
utils::{blocking, check_private_instance, get_local_user_view_from_jwt_opt},
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};
use lemmy_db_schema::traits::DeleteableOrRemoveable;
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use lemmy_db_views_actor::community_view::CommunityQueryBuilder;
use lemmy_utils::{ConnectionId, LemmyError};
use lemmy_websocket::LemmyContext;
#[async_trait::async_trait(?Send)]
impl PerformCrud for ListCommunities {
type Response = ListCommunitiesResponse;
#[tracing::instrument(skip(context, _websocket_id))]
async fn perform(
&self,
context: &Data<LemmyContext>,
_websocket_id: Option<ConnectionId>,
) -> Result<ListCommunitiesResponse, LemmyError> {
let data: &ListCommunities = self;
let local_user_view =
get_local_user_view_from_jwt_opt(data.auth.as_ref(), context.pool(), context.secret())
.await?;
check_private_instance(&local_user_view, context.pool()).await?;
let person_id = local_user_view.to_owned().map(|l| l.person.id);
// Don't show NSFW by default
let show_nsfw = match &local_user_view {
Some(uv) => uv.local_user.show_nsfw,
None => false,
};
let sort = data.sort;
let listing_type = data.type_;
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let page = data.page;
let limit = data.limit;
let mut communities = blocking(context.pool(), move |conn| {
CommunityQueryBuilder::create(conn)
.listing_type(listing_type)
.sort(sort)
.show_nsfw(show_nsfw)
.my_person_id(person_id)
.page(page)
.limit(limit)
.list()
})
.await??;
// Blank out deleted or removed info for non-logged in users
if person_id.is_none() {
for cv in communities
.iter_mut()
.filter(|cv| cv.community.deleted || cv.community.removed)
{
cv.community = cv.to_owned().community.blank_out_deleted_or_removed_info();
}
}
// Return the jwt
Ok(ListCommunitiesResponse { communities })
}
}