Fix Attribute Error in Upgrade Step 2619 (#2642)

* Handle non existing field

* Changelog updated

* comment added

CHANGES.rst

@@ -4,6 +4,7 @@ Changelog
 2.6.0 (unreleased)
 ------------------
 
+- #2642 Fix Attribute Error in Upgrade Step 2619
 - #2641 Fix AttributeError on rejection of samples without a contact set
 - #2640 Fix missing custom transitions via adapter in Worksheet's analyses
 - #2639 Fix sampletype-related indexes for AnalysisSpec type are not indexed

src/senaite/core/upgrade/v02_06_000.py

@@ -2189,7 +2189,13 @@ def setup_result_types(tool):
             continue
 
         # check if it was set as a string result
-        string_result = obj.getField("StringResult").get(obj)
+        field = obj.getField("StringResult")
+        if not field:
+            # https://github.com/senaite/senaite.core/pull/2642
+            logger.error("Field 'StringResult' not found on object %s (%s)"
+                         % (api.get_path(obj), api.get_uid(obj)))
+            continue
+        string_result = field.get(obj)
 
         # get the results options type
         options_field = obj.getField("ResultOptionsType")