better leech tag handling for test scheduler

rslib/src/notes/mod.rs

@@ -559,33 +559,6 @@ impl Collection {
             Ok(DuplicateState::Empty)
         }
     }
-
-    /// Update the tags of the provided note, canonifying before save. Requires a transaction.
-    /// Fixme: this currently pulls in the note type, and does more work than necessary. We
-    /// could add a separate method to the storage layer to just update the tags in the future,
-    /// though  it does slightly complicate the undo story.
-    pub(crate) fn update_note_tags<F>(&mut self, nid: NoteId, mutator: F) -> Result<()>
-    where
-        F: Fn(&mut Vec<String>),
-    {
-        self.transform_notes(&[nid], |note, _nt| {
-            let mut tags = note.tags.clone();
-            mutator(&mut tags);
-            let changed = if tags != note.tags {
-                note.tags = tags;
-                true
-            } else {
-                false
-            };
-            Ok(TransformNoteOutput {
-                changed,
-                generate_cards: false,
-                mark_modified: true,
-                update_tags: true,
-            })
-        })
-        .map(|_| ())
-    }
 }
 
 /// The existing note pulled from the DB will have sfld and csum set, but the

rslib/src/scheduler/answering/mod.rs

@@ -267,7 +267,6 @@ impl Collection {
         let timing = updater.timing;
         let mut card = updater.into_card();
         self.update_card_inner(&mut card, original, usn)?;
-        println!("fixme: add_leech calls update_note_tags() which creates a transaction");
         if answer.new_state.leeched() {
             self.add_leech_tag(card.note_id)?;
         }
@@ -371,7 +370,8 @@ impl Collection {
     }
 
     fn add_leech_tag(&mut self, nid: NoteId) -> Result<()> {
-        self.update_note_tags(nid, |tags| tags.push("leech".into()))
+        self.add_tags_to_notes_inner(&[nid], "leech")?;
+        Ok(())
     }
 }
 

rslib/src/tags/bulkadd.rs

@@ -17,7 +17,7 @@ impl Collection {
 }
 
 impl Collection {
-    fn add_tags_to_notes_inner(&mut self, nids: &[NoteId], tags: &str) -> Result<usize> {
+    pub(crate) fn add_tags_to_notes_inner(&mut self, nids: &[NoteId], tags: &str) -> Result<usize> {
         let usn = self.usn()?;
 
         // will update tag list for any new tags, and match case