python - 错误 : 1318 Incorrect number of arguments for PROCEDURE | Flask

Question

我收到此错误消息。它仅在 _query 具有单个字符时有效。其他明智的抛出和错误信息。我正在为 Flask 使用 MySQL 扩展。

{ error: "(1318, 'Incorrect number of arguments for PROCEDURE alexspider.SearchStore; expected 1, got 2')" }

MySQL 过程:

DELIMITER $$
CREATE PROCEDURE SearchStore(
 IN Keyword VARCHAR(50))
BEGIN
 SELECT * 
 FROM noones
 WHERE name LIKE CONCAT('%', Keyword, '%');
END$$
DELIMITER ;

---

flask 应用程序.py

@app.route('/search', methods=['POST'])
def search():
    try:
        # Read the posted values from the UI
        _query = request.form['query']

        # Validationg the search Quoey
        if _query:
            conn = mysql.connect()
            cursor = conn.cursor()
            cursor.callproc('SearchStore', _query)
            stores = cursor.fetchall()
            if len(stores) > 0:
                stores_dict = []
                for store in stores:
                    store_dict  ={
                    'name': store[2],
                    'url': store[3],
                    'cashback': store[4]}
                    stores_dict.append(store_dict)
                return json.dumps(stores_dict)
            else:
                return render_template('error.hml', error = 'This is error message')

    except Exception as e:
        return json.dumps({'error': str(e)})
    finally:
        cursor.close()
        conn.close()

Answer 1

在这一行中，

cursor.callproc('SearchStore', _query)

您必须将参数作为列表传递。 像这样，

cursor.callproc('SearchStore', [_query,])