Refactor User model: update mobile field to allow null values, enforce unique id_card, and implement user filtering API endpoint

api/views.py

@@ -20,6 +20,7 @@ from django_filters.rest_framework import DjangoFilterBackend
 import re
 from typing import cast, Dict, Any
 from django.core.mail import send_mail
+from django.db.models import Q
 
 # local apps import
 from .serializers import (
@@ -196,6 +197,28 @@ class ListUserView(StaffEditorPermissionMixin, generics.ListAPIView):
     queryset = User.objects.all()
 
 
+@api_view(["GET"])
+def filter_user(request):
+    id_card = request.GET.get("id_card", "").strip() or None
+    mobile = request.GET.get("mobile", "").strip() or None
+
+    if not id_card and not mobile:
+        return Response({"ok": False})
+
+    filters = Q()
+    if id_card is not None:
+        filters |= Q(id_card=id_card)
+    if mobile is not None:
+        filters |= Q(mobile=mobile)
+
+    user = User.objects.filter(filters).first()
+
+    print(f"Querying with filters: {filters}")
+    print(f"Found user: {user}")
+
+    return Response({"ok": True if user else False})
+
+
 class ListUserByIDCardView(generics.ListAPIView):
     # Create user API view
     permission_classes = (permissions.AllowAny,)