new

backend/community/views.py

@@ -41,14 +41,31 @@ class ActivityViewSet(viewsets.ReadOnlyModelViewSet):
         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')]
+        # Re-fetch the config from the object method or serializer logic if needed,
+        # but here we can just use the serializer's method to get the effective config.
+        # However, accessing serializer method from view is tricky without instantiating.
+        # Let's replicate the logic or rely on the fact that we can construct it.
+        
+        effective_config = activity.signup_form_config
+        if not effective_config:
+             effective_config = []
+             if activity.ask_name:
+                 effective_config.append({"name": "name", "label": "姓名", "type": "text", "required": True})
+             if activity.ask_phone:
+                 effective_config.append({"name": "phone", "label": "手机号", "type": "number", "required": True})
+             if activity.ask_wechat:
+                 effective_config.append({"name": "wechat", "label": "微信号", "type": "text", "required": True})
+             if activity.ask_company:
+                 effective_config.append({"name": "company", "label": "公司/机构", "type": "text", "required": False})
+
+        if effective_config:
+            required_fields = [f['name'] for f in effective_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)
+                     label = next((f['label'] for f in effective_config if f['name'] == field), field)
                      return Response({'error': f'请填写: {label}'}, status=400)
             
         signup = ActivitySignup.objects.create(