new

backend/community/views.py

@@ -36,8 +36,26 @@ class ActivityViewSet(viewsets.ReadOnlyModelViewSet):
         
         if activity.signups.count() >= activity.max_participants:
              return Response({'error': '活动名额已满'}, status=400)
+        
+        # Get signup info
+        signup_info = request.data.get('signup_info', {})
+        
+        # Basic validation
+        if activity.signup_form_config:
+            required_fields = [f['name'] for f in activity.signup_form_config if f.get('required')]
+            for field in required_fields:
+                # Simple check: field exists and is not empty string (if it's a string)
+                val = signup_info.get(field)
+                if val is None or (isinstance(val, str) and not val.strip()):
+                     # Try to find label for better error message
+                     label = next((f['label'] for f in activity.signup_form_config if f['name'] == field), field)
+                     return Response({'error': f'请填写: {label}'}, status=400)
             
-        signup = ActivitySignup.objects.create(activity=activity, user=user)
+        signup = ActivitySignup.objects.create(
+            activity=activity, 
+            user=user,
+            signup_info=signup_info
+        )
         serializer = ActivitySignupSerializer(signup)
         return Response(serializer.data, status=201)