[chore] Global project refactoring

backend/project/api/teams/views.py

@@ -0,0 +1,26 @@
+from backend.project.users.models import User
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+from teams.models import Team
+
+from .serializers import TeamSerializer
+
+
+class AddUserToTeam(APIView):
+    def post(self, request, team_id, user_id):  # noqa: ARG002
+        try:
+            team = Team.objects.get(id=team_id)
+            user = User.objects.get(id=user_id)
+        except Team.DoesNotExist:
+            return Response(
+                {"error": "Team not found"}, status=status.HTTP_404_NOT_FOUND
+            )
+        except User.DoesNotExist:
+            return Response(
+                {"error": "User not found"}, status=status.HTTP_404_NOT_FOUND
+            )
+
+        team.members.add(user)
+        team_serializer = TeamSerializer(team)
+        return Response(team_serializer.data, status=status.HTTP_200_OK)