testing sqlbypass destroy. caching connection during destroy

activerecord/lib/active_record/session_store.rb

@@ -273,12 +273,13 @@ module ActiveRecord
       end
 
       def destroy
-        unless @new_record
-          @@connection.delete <<-end_sql, 'Destroy session'
-            DELETE FROM #{@@table_name}
-            WHERE #{@@connection.quote_column_name(@@session_id_column)}=#{@@connection.quote(session_id)}
-          end_sql
-        end
+        return if @new_record
+
+        connect = connection
+        connect.delete <<-end_sql, 'Destroy session'
+          DELETE FROM #{table_name}
+          WHERE #{connect.quote_column_name(session_id_column)}=#{connect.quote(session_id)}
+        end_sql
       end
     end
 

activerecord/test/cases/session_store/sql_bypass.rb

@@ -42,6 +42,15 @@ module ActiveRecord
         assert_equal s.session_id, t.session_id
         assert_equal s.data, t.data
       end
+
+      def test_destroy
+        SqlBypass.create_table! unless Session.table_exists?
+        session_id = 20
+        s = SqlBypass.new :data => 'hello', :session_id => session_id
+        s.save
+        s.destroy
+        assert_nil SqlBypass.find_by_session_id session_id
+      end
     end
   end
 end