feat: all unique constraints tested

src/organisation/router.py

@@ -20,7 +20,6 @@ from typing import Annotated
 
 from fastapi import APIRouter, status
 from fastapi.params import Query
-from psycopg.errors import UniqueViolation
 from sqlalchemy.exc import IntegrityError
 
 from src.contact.schemas import ContactModel
@@ -143,7 +142,10 @@ async def create_org(
 	try:
 		db.flush()
 	except IntegrityError as e:
-		if isinstance(e.orig, UniqueViolation):
+		if (
+			getattr(e.orig, "pgcode", None) == "23505"  # Postgres unique violation
+			or "UNIQUE constraint failed" in str(e.orig)  # SQLite unique violation
+		):
 			raise ConflictException(
 				message="Organisation with this name already exists"
 			)