working 3 tier approach

backend/app/api/events.py

@@ -0,0 +1,70 @@
+from typing import Optional
+
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.database import get_session
+from app.models import Event
+from app.schemas import EventCreate, EventUpdate, EventResponse
+
+router = APIRouter()
+
+
+@router.get("/", response_model=list[EventResponse])
+async def list_events(
+    active: Optional[bool] = Query(None, description="Filter by active status"),
+    session: AsyncSession = Depends(get_session),
+):
+    query = select(Event).order_by(Event.date)
+    if active is not None:
+        query = query.where(Event.active == active)
+    result = await session.execute(query)
+    return list(result.scalars().all())
+
+
+@router.get("/{event_id}", response_model=EventResponse)
+async def get_event(event_id: int, session: AsyncSession = Depends(get_session)):
+    result = await session.execute(select(Event).where(Event.id == event_id))
+    event = result.scalar_one_or_none()
+    if not event:
+        return {"error": "Event not found"}
+    return event
+
+
+@router.post("/", response_model=EventResponse, status_code=201)
+async def create_event(
+    payload: EventCreate, session: AsyncSession = Depends(get_session)
+):
+    event = Event(**payload.model_dump(), active=True)
+    session.add(event)
+    await session.commit()
+    await session.refresh(event)
+    return event
+
+
+@router.put("/{event_id}", response_model=EventResponse)
+async def update_event(
+    event_id: int,
+    payload: EventUpdate,
+    session: AsyncSession = Depends(get_session),
+):
+    result = await session.execute(select(Event).where(Event.id == event_id))
+    event = result.scalar_one_or_none()
+    if not event:
+        return {"error": "Event not found"}
+    for key, value in payload.model_dump(exclude_unset=True).items():
+        setattr(event, key, value)
+    await session.commit()
+    await session.refresh(event)
+    return event
+
+
+@router.delete("/{event_id}", status_code=204)
+async def delete_event(event_id: int, session: AsyncSession = Depends(get_session)):
+    result = await session.execute(select(Event).where(Event.id == event_id))
+    event = result.scalar_one_or_none()
+    if not event:
+        return {"error": "Event not found"}
+    await session.delete(event)
+    await session.commit()