Guard against null values #42

archesproject · Oct 17, 2024 · 462ea08 · 462ea08
1 parent d1b37d4
commit 462ea08
Showing 1 changed file with 9 additions and 7 deletions.
diff --git a/arches_references/datatypes/datatypes.py b/arches_references/datatypes/datatypes.py
@@ -104,13 +104,15 @@ def get_display_value(self, tile, node, **kwargs):
         labels = []
         requested_language = kwargs.pop("language", None)
         current_language = requested_language or get_language()
-        for item in self.get_tile_data(tile)[str(node.nodeid)]:
-            for label in item["labels"]:
-                if (
-                    label["language_id"] == current_language
-                    and label["valuetype_id"] == "prefLabel"
-                ):
-                    labels.append(label.get("value", ""))
+        node_data = self.get_tile_data(tile)[str(node.nodeid)]
+        if node_data:
+            for item in node_data:
+                for label in item["labels"]:
+                    if (
+                        label["language_id"] == current_language
+                        and label["valuetype_id"] == "prefLabel"
+                    ):
+                        labels.append(label.get("value", ""))
         return ", ".join(labels)
 
     def collects_multiple_values(self):