81 lines
2.5 KiB
Python
81 lines
2.5 KiB
Python
import aiosqlite
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from typing import List
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class Product:
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KEYS = ['id', 'product_id', 'link', 'name', 'img_small', 'img_large', 'raw_data']
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def __init__(self, id: int, product_id: str, link: str, name: str, img_small: str, img_large: str, raw_data: dict) -> None:
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self.id = id
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self.product_id = product_id
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self.link = link
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self.name = name
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self.img_small = img_small
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self.img_large = img_large
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self.raw_data = raw_data
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async def create(conn):
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await conn.execute('''
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CREATE TABLE IF NOT EXISTS Product (
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id INTEGER PRIMARY KEY,
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product_id TEXT UNIQUE,
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link TEXT,
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name TEXT,
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img_small TEXT,
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img_large TEXT,
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raw_data TEXT
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);''')
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await conn.execute('''
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CREATE TABLE IF NOT EXISTS ProductTag (
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food_item_id INTEGER,
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tag TEXT,
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PRIMARY KEY (food_item_id, tag),
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FOREIGN KEY (food_item_id) REFERENCES Product(id)
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);''')
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async def find_product_by_tag(conn, tag: str) -> List[Product]:
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async with conn.execute(f'''
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SELECT {','.join(Product.KEYS)} FROM Product
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WHERE id IN (
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SELECT food_item_id FROM ProductTag
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WHERE tag = ?
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)
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''', (tag,)) as cursor:
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async for row in cursor:
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yield Product(*row)
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async def find_product_by_product_id(conn, product_id: str) -> Product:
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async with conn.execute(f'''
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SELECT {','.join(Product.KEYS)} FROM Product
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WHERE product_id = ?
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LIMIT 1
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''', (product_id,)) as cursor:
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async for row in cursor:
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return Product(*row)
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async def insert_product(conn, product: Product):
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async with conn.execute('''
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INSERT INTO Product (name, product_id, link, img_small, img_large, raw_data)
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VALUES (?, ?, ?, ?, ?, ?)
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''', (product.name, product.product_id, product.link, product.img_small, product.img_large, product.raw_data)) as cursor:
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product.id = cursor.lastrowid
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await conn.commit()
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async def add_tag(conn, product: Product, tag: str):
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await conn.execute('''
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INSERT INTO ProductTag (food_item_id, tag)
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VALUES (?, ?)
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''', (product.id, tag))
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await conn.commit()
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async def get_tags(conn, product: Product) -> List[str]:
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async with conn.execute('''
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SELECT tag FROM ProductTag
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WHERE food_item_id = ?
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''', (product.id,)) as cursor:
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async for row in cursor:
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yield row[0]
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