✨ use result of ActiveSupport::Notifications.subscribe to unsubscribe

Author: marcreynolds

lib/sql_spy.rb

@@ -39,9 +39,9 @@ def call(_name, start, finish, _message_id, values)
   def self.track
     tracker = Tracker.new
 
-    ActiveSupport::Notifications.subscribe("sql.active_record", tracker)
+    subscriber = ActiveSupport::Notifications.subscribe("sql.active_record", tracker)
     yield
-    ActiveSupport::Notifications.unsubscribe(tracker)
+    ActiveSupport::Notifications.unsubscribe(subscriber)
 
     tracker.queries
   end