didier/database/crud/birthdays.py

46 lines
1.5 KiB
Python

import datetime
from datetime import date
from typing import Optional
from sqlalchemy import extract, select
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.orm import selectinload
from database.crud import users
from database.schemas import Birthday, User
__all__ = ["add_birthday", "get_birthday_for_user", "get_birthdays_on_day"]
async def add_birthday(session: AsyncSession, user_id: int, birthday: date):
"""Add a user's birthday into the database
If already present, overwrites the existing one
"""
user = await users.get_or_add_user(session, user_id, options=[selectinload(User.birthday)])
if user.birthday is not None:
bd = user.birthday
await session.refresh(bd)
bd.birthday = birthday
else:
bd = Birthday(user_id=user_id, birthday=birthday)
session.add(bd)
await session.commit()
async def get_birthday_for_user(session: AsyncSession, user_id: int) -> Optional[Birthday]:
"""Find a user's birthday"""
statement = select(Birthday).where(Birthday.user_id == user_id)
return (await session.execute(statement)).scalar_one_or_none()
async def get_birthdays_on_day(session: AsyncSession, day: datetime.date) -> list[Birthday]:
"""Get all birthdays that happen on a given day"""
days = extract("day", Birthday.birthday)
months = extract("month", Birthday.birthday)
statement = select(Birthday).where((days == day.day) & (months == day.month))
return list((await session.execute(statement)).scalars().all())