feat: implement delete API for /event/<eid> route

Author: arunPdl02

src/event/crud.py

@@ -1,6 +1,6 @@
 from collections.abc import Sequence
 
-from sqlalchemy import select, or_, and_, extract
+from sqlalchemy import select, or_, and_, extract, delete
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from event.tables import EventDB
@@ -56,4 +56,15 @@ async def create_event(
     db_session: AsyncSession,
     info: EventDB
 ):
-    db_session.add(info)
+    await db_session.add(info)
+
+
+async def delete_event(
+    db_session: AsyncSession,
+    eid: int
+):
+    result = await db_session.execute(delete(EventDB).where(
+        EventDB.eid == eid
+    ))
+    # Return the number of rows affected
+    return result.rowcount

src/event/urls.py

@@ -90,4 +90,30 @@ async def create_event(
     await db_session.commit()
     await db_session.refresh(new_event)
 
-    return new_event
+    return new_event
+
+
+@router.delete(
+    "/{eid}",
+    description="Delete an event",
+    response_model=SuccessResponse,
+    responses={
+        404:{"description": "Event doesn't exist."}
+    },
+    operation_id="delete_event",
+    # dependecies=[Depends()],
+)
+async def delete_event(
+    db_session: database.DBSession,
+    eid: int
+):
+    rows_deleted = await event.crud.delete_event(db_session, eid)
+    
+    if rows_deleted == 0:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Event doesn't exist."
+        )
+
+    await db_session.commit()
+    return SuccessResponse(success=True)