database.py

@@ -25,10 +25,14 @@ class Database():
         self.conn.commit()
         return self.cur.lastrowid
 
-    def subscribe_user(self, user_id: int, feed_id: int):
+    def subscribe_user(self, user_id: int, feed_id: int) -> None:
         self.cur.execute('INSERT INTO subscribes (user_id, feed_id) VALUES (?, ?)', (user_id, feed_id))
         self.conn.commit()
 
+    def unsubscribe_user(self, user_id: int, feed_id: int) -> None:
+        self.cur.execute('DELETE FROM subscribes WHERE feed_id = ? AND user_id = ?', (feed_id, user_id))
+        self.conn.commit()
+
     def delete_feed(self, feed_id: int) -> None:
         self.cur.execute('DELETE FROM feeds WHERE id = ?', (feed_id,))
         self.conn.commit()