add delete_feed method

database_interaction.py

@@ -13,18 +13,21 @@ class Database():
         self.conn.commit()
         return self.cur.lastrowid
 
-    def get_user(self, telegram_id: str) -> tuple | None:
+    def get_user(self, telegram_id: str) -> int | None:
         self.cur.execute('SELECT id FROM users WHERE telegram_id = :telegram_id', {'telegram_id': telegram_id})
         user_id = self.cur.fetchone()
-        return user_id
+        if user_id is None:
+            return None
+        return user_id[0]
 
     def add_feed(self, link: str) -> int:
         self.cur.execute('INSERT INTO feeds (link) VALUES (:link)', {'link': link})
         self.conn.commit()
         return self.cur.lastrowid
 
-    def delete_feed():
-        pass
+    def delete_feed(self, feed_id: int) -> None:
+        self.cur.execute('DELETE FROM feeds WHERE id = :feed_id', {'feed_id': feed_id})
+        self.conn.commit()
 
     def get_feeds():
         pass