def check_prices():
users = session.query(User).all()
scrapper = Scrapper()
items = session.query(Item).all()
for item in items:
scrapper.go_to(item.link)
price = scrapper.get_price()
title = scrapper.get_title()
if not item.title:
item.title = title
session.commit()
if item.price:
change_percentage = (abs(price - item.price) / item.price) * 100.0
if change_percentage >= 3:
item.price = price
session.commit()
markup = InlineKeyboardMarkup(
[InlineKeyboardButton('Check', url=item.link)])
for u in users:
try:
bot.send_message(
u.tg_id,
'<code>{}</code> price changed'.format(title),
parse_mode=ParseMode.HTML,
reply_markup=markup)
except Exception as e:
config.logger.error(
'Error sending a message: {}'.format(e))
else:
item.price = price
session.commit()
