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import psycopg2
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from const import DB_CONFIG
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def add_product_to_shop(
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name: str,
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cost: str, # строка, например "100.00" или "50"
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count: int,
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reserved: int = 0, # по умолчанию 0
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picture_url: str = "",
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description: str = "",
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type: str = ""
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) -> int:
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connection = psycopg2.connect(**DB_CONFIG)
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cursor = connection.cursor()
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try:
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# Вставка с автоматической генерацией id и возвратом id
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cursor.execute("""
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INSERT INTO shop (name, cost, count, reserved, picture_url, description, type)
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VALUES (%s, %s::NUMERIC, %s, %s, %s, %s, %s)
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RETURNING id
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""", (name, cost, count, reserved, picture_url, description, type))
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product_id = cursor.fetchone()[0]
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connection.commit()
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return product_id
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except psycopg2.Error as e:
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print("Ошибка при работе с PostgreSQL:", e)
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connection.rollback()
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raise
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except Exception as e:
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print("Ошибка при добавлении товара:", e)
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connection.rollback()
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raise
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finally:
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cursor.close()
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connection.close()
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def delete_product_from_shop(product_id: int) -> bool:
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connection = psycopg2.connect(**DB_CONFIG)
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cursor = connection.cursor()
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try:
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# Удаляем товар по id
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cursor.execute("DELETE FROM shop WHERE id = %s", (product_id,))
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if cursor.rowcount == 0:
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raise ValueError(f"Товар с id={product_id} не найден")
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connection.commit()
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return True
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except psycopg2.Error as e:
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print("Ошибка при работе с PostgreSQL:", e)
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connection.rollback()
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raise
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except ValueError:
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connection.rollback()
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raise
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finally:
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cursor.close()
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connection.close()
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