From 1f1220cf7c17ecbb9f3c190ecbdfb94a8baf3018 Mon Sep 17 00:00:00 2001
From: bogdanteleaga <bteleaga@cloudbasesolutions.com>
Date: Fri, 20 Nov 2015 20:14:12 +0200
Subject: [PATCH] Limit tags in custom study dialog to those in the selected
 deck

---
 anki/tags.py    | 13 +++++++++++++
 aqt/taglimit.py |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/anki/tags.py b/anki/tags.py
index e752fdb7c..b87b0ddeb 100644
--- a/anki/tags.py
+++ b/anki/tags.py
@@ -67,6 +67,19 @@ class TagManager(object):
     def save(self):
         self.changed = True
 
+    def byDeck(self, did, children=False):
+        basequery = "select n.tags from cards c, notes n WHERE c.nid = n.id"
+        if not children:
+            query = basequery + " AND c.did=?"
+            res = self.col.db.list(query, did)
+            return list(set(self.split(" ".join(res))))
+        dids = [did]
+        for name, id in self.col.decks.children(did):
+            dids.append(id)
+        query = basequery + " AND c.did IN " + ids2str(dids)
+        res = self.col.db.list(query)
+        return list(set(self.split(" ".join(res))))
+
     # Bulk addition/removal from notes
     #############################################################
 
diff --git a/aqt/taglimit.py b/aqt/taglimit.py
index 6ade8bee8..77edd7999 100644
--- a/aqt/taglimit.py
+++ b/aqt/taglimit.py
@@ -19,7 +19,7 @@ class TagLimit(QDialog):
         self.exec_()
 
     def rebuildTagList(self):
-        usertags = self.mw.col.tags.all()
+        usertags = self.mw.col.tags.byDeck(self.deck['id'], True)
         yes = self.deck.get("activeTags", [])
         no = self.deck.get("inactiveTags", [])
         yesHash = {}