Fixed more compile time errors

src/service/rooms/directory/data.rs

@@ -1,15 +1,16 @@
 use ruma::RoomId;
+use crate::Result;
 
 pub trait Data {
     /// Adds the room to the public room directory
-    fn set_public(room_id: &RoomId) -> Result<()>;
+    fn set_public(&self, room_id: &RoomId) -> Result<()>;
 
     /// Removes the room from the public room directory.
-    fn set_not_public(room_id: &RoomId) -> Result<()>;
+    fn set_not_public(&self, room_id: &RoomId) -> Result<()>;
 
     /// Returns true if the room is in the public room directory.
-    fn is_public_room(room_id: &RoomId) -> Result<bool>;
+    fn is_public_room(&self, room_id: &RoomId) -> Result<bool>;
 
     /// Returns the unsorted public room directory
-    fn public_rooms() -> impl Iterator<Item = Result<Box<RoomId>>> + '_;
+    fn public_rooms(&self) -> Box<dyn Iterator<Item = Result<Box<RoomId>>>>;
 }

src/service/rooms/directory/mod.rs

@@ -2,13 +2,13 @@ mod data;
 pub use data::Data;
 use ruma::RoomId;
 
-use crate::service::*;
+use crate::Result;
 
 pub struct Service<D: Data> {
     db: D,
 }
 
-impl Service<_> {
+impl<D: Data> Service<D> {
     #[tracing::instrument(skip(self))]
     pub fn set_public(&self, room_id: &RoomId) -> Result<()> {
         self.db.set_public(room_id)