fix crash when reference layer is missing (#29)

opengisch · Nov 28, 2022 · f615954 · f615954
1 parent eb7a56e
commit f615954
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/document_management_system/gui/relation_editor_feature_side_widget.py b/document_management_system/gui/relation_editor_feature_side_widget.py
@@ -235,7 +235,11 @@ def afterSetRelations(self):
     def _checkTransactionGroup(self):
 
         self._layerInSameTransactionGroup = False
-        connectionString = PluginHelper.connectionString(self.relation().referencedLayer().source())
+        referenced_layer = self.relation().referencedLayer()
+        if not self.relation().referencedLayer():
+            return
+
+        connectionString = PluginHelper.connectionString(referenced_layer.source())
         transactionGroup = QgsProject.instance().transactionGroup(self.relation().referencedLayer().providerType(),
                                                                   connectionString)