Workaround for ArrayValueSerializer can fail hard with ConversionSyntax exception

Author: dimmur-brw

backend/src/baserow/contrib/database/api/fields/serializers.py

@@ -8,6 +8,7 @@
 
 from drf_spectacular.types import OpenApiTypes
 from drf_spectacular.utils import extend_schema_field
+from loguru import logger
 from rest_framework import serializers
 from rest_framework.serializers import SkipField, empty
 
@@ -227,7 +228,14 @@ def __init__(self, child, *args, **kwargs):
         self.fields["value"] = child
 
     def to_representation(self, instance):
-        return super().to_representation(instance)
+        # Note this is workaround for https://github.com/baserow/baserow/issues/4424
+        # Once we have a proper way to handle this, we can remove this
+        # and return the super().to_representation(instance) directly.
+        try:
+            return super().to_representation(instance)
+        except Exception:
+            logger.exception("Mismatch between field type and value type")
+        return []
 
 
 class LinkRowValueSerializer(serializers.Serializer):

changelog/entries/unreleased/bug/4424_do_not_fail_hard_when_arrayvalueserializer_throws_conversion.json

@@ -0,0 +1,9 @@
+{
+    "type": "bug",
+    "message": "Do not fail hard when ArrayValueSerializer throws ConversionSyntax exception",
+    "issue_origin": "github",
+    "issue_number": 4424,
+    "domain": "database",
+    "bullet_points": [],
+    "created_at": "2025-12-11"
+}