From ef1f58c8b6225775a7736d534215b461c8402f2a Mon Sep 17 00:00:00 2001
From: k12ish <k4krish@gmail.com>
Date: Sat, 19 Dec 2020 17:59:07 +0000
Subject: [PATCH] Added method

---
 pylib/anki/collection.py | 10 ++++++++++
 qt/aqt/deckbrowser.py    | 10 +++-------
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/pylib/anki/collection.py b/pylib/anki/collection.py
index 77eab8716..28a67ab6f 100644
--- a/pylib/anki/collection.py
+++ b/pylib/anki/collection.py
@@ -379,6 +379,16 @@ class Collection:
     def cardCount(self) -> Any:
         return self.db.scalar("select count() from cards")
 
+    def card_count_from_did(self, did, recursive=False):
+        dids = [did]
+        if recursive:
+            dids += [r[1] for r in self.decks.children(did)]
+        count = self.db.scalar(
+            "select count() from cards where did in {0} or "
+            "odid in {0}".format(ids2str(dids))
+        )
+        return count
+
     def remove_cards_and_orphaned_notes(self, card_ids: Sequence[int]):
         "You probably want .remove_notes_by_card() instead."
         self.backend.remove_cards(card_ids=card_ids)
diff --git a/qt/aqt/deckbrowser.py b/qt/aqt/deckbrowser.py
index 00f63f2e0..11946be0f 100644
--- a/qt/aqt/deckbrowser.py
+++ b/qt/aqt/deckbrowser.py
@@ -278,13 +278,9 @@ class DeckBrowser:
         self.mw.checkpoint(tr(TR.DECKS_DELETE_DECK))
         deck = self.mw.col.decks.get(did)
         if not deck["dyn"]:
-            dids = [did] + [r[1] for r in self.mw.col.decks.children(did)]
-            cnt = self.mw.col.db.scalar(
-                "select count() from cards where did in {0} or "
-                "odid in {0}".format(ids2str(dids))
-            )
-            if cnt:
-                extra = tr(TR.DECKS_IT_HAS_CARD, count=cnt)
+            count = self.mw.col.card_count_from_did(did, recursive=True)
+            if count:
+                extra = tr(TR.DECKS_IT_HAS_CARD, count=count)
             else:
                 extra = None
         if (