Fix relationship, add github links, improve error messages

database/crud/command_stats.py

@@ -5,6 +5,7 @@ from discord import app_commands
 from discord.ext import commands
 from sqlalchemy.ext.asyncio import AsyncSession
 
+from database.crud.users import get_or_add_user
 from database.schemas import CommandStats
 
 __all__ = ["register_command_invocation"]
@@ -20,6 +21,8 @@ async def register_command_invocation(
     if command is None:
         return
 
+    await get_or_add_user(session, ctx.author.id)
+
     # Check the type of invocation
     context_menu = isinstance(command, app_commands.ContextMenu)
 

database/crud/github.py

@@ -0,0 +1,43 @@
+from typing import Optional
+
+from sqlalchemy import delete, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from database.exceptions import Forbidden, NoResultFoundException
+from database.schemas import GitHubLink
+
+__all__ = ["add_github_link", "delete_github_link_by_id", "get_github_links"]
+
+
+async def add_github_link(session: AsyncSession, user_id: int, url: str) -> GitHubLink:
+    """Add a new GitHub link into the database"""
+    gh_link = GitHubLink(user_id=user_id, url=url)
+    session.add(gh_link)
+    await session.commit()
+    await session.refresh(gh_link)
+
+    return gh_link
+
+
+async def delete_github_link_by_id(session: AsyncSession, user_id: int, link_id: int):
+    """Remove an existing link from the database
+
+    You can only remove links owned by you
+    """
+    select_statement = select(GitHubLink).where(GitHubLink.github_link_id == link_id)
+    gh_link: Optional[GitHubLink] = (await session.execute(select_statement)).scalar_one_or_none()
+    if gh_link is None:
+        raise NoResultFoundException
+
+    if gh_link.user_id != user_id:
+        raise Forbidden
+
+    delete_statement = delete(GitHubLink).where(GitHubLink.github_link_id == gh_link.github_link_id)
+    await session.execute(delete_statement)
+    await session.commit()
+
+
+async def get_github_links(session: AsyncSession, user_id: int) -> list[GitHubLink]:
+    """Get a user's GitHub links"""
+    statement = select(GitHubLink).where(GitHubLink.user_id == user_id)
+    return (await session.execute(statement)).scalars().all()