didier/database/crud/links.py

46 lines
1.3 KiB
Python

from typing import Optional
from sqlalchemy import func, select
from sqlalchemy.ext.asyncio import AsyncSession
from database.exceptions import NoResultFoundException
from database.schemas import Link
__all__ = ["add_link", "edit_link", "get_all_links", "get_link_by_name"]
async def get_all_links(session: AsyncSession) -> list[Link]:
"""Get a list of all links"""
statement = select(Link)
return list((await session.execute(statement)).scalars().all())
async def add_link(session: AsyncSession, name: str, url: str) -> Link:
"""Add a new link into the database"""
if name.islower():
name = name.capitalize()
instance = Link(name=name, url=url)
session.add(instance)
await session.commit()
return instance
async def get_link_by_name(session: AsyncSession, name: str) -> Optional[Link]:
"""Get a link by its name"""
statement = select(Link).where(func.lower(Link.name) == name.lower())
return (await session.execute(statement)).scalar_one_or_none()
async def edit_link(session: AsyncSession, name: str, new_url: str):
"""Edit an existing link"""
link: Optional[Link] = await get_link_by_name(session, name)
if link is None:
raise NoResultFoundException
link.url = new_url
session.add(link)
await session.commit()