Found a workaround after today's tcon.
Can cancel this request. Thanks.

Would be great if you could post the workaround so that it is documented. Thanks

See below. Thanks.

nodeList = slicer.app.mrmlScene().GetNodes()
for i in range(0,nodeList.GetNumberOfItems()):
node = nodeList.GetItemAsObject(i)
#

Isolates all nodes that are "storable" but not necessarily stored into a file yet.

This includes newly created nodes. When nodes are stored into a file they become "storage" nodes.

#
if node.IsA("vtkMRMLStorableNode"):
storableNode = slicer.vtkMRMLStorableNode.SafeDownCast(node)
if (storableNode and storableNode.GetSaveWithScene()):
storageNode = storableNode.GetStorageNode()
#

If there is no "storageNode" associated with the "storableNode,"

     # then create one and retrieve the prescribed file information.
     # Afterwards set the the file name to the storage node.
     #
     if not storageNode:
       storageNode = storableNode.CreateDefaultStorageNode()
       if storageNode:
         storageFileName = str(storableNode.GetName()) + '.' + storageNode.GetDefaultWriteFileExtension()
         storageNode.SetFileName(storageFileName)
         print ("Newly created storageNode: '%s'"%(storageFileName))

Hi Sunil,

Did you have any chance to work on this ?

Thanks,
Jc

Hi Jc,

Yes. The note right above your question solves the problem...at least for my purposes.

Is that what you are referring to?

Thanks,
Sunil

Hi,

Was referring to the suggestion reported by Julien in the issue description:

You would need to:

• Create a mantis issue
• Create vtkMRMLScene::CreateMissingStorageNodes( / some options here ? /); where you move some the generic content of nodeFileInfo
• Create vtkMRMLScene::CreateStorageNode(vtkMRMLStorableNode storableNode /, some options here ?*/ );
• Call vtkMRMLScene::CreateStorageNode(...) from qSlicerSaveDataDialogPrivate::nodeFileInfo()
• Write a unit test in vtkMRMLSceneMissingStorageNodeTest.cxx

Ah, gotcha.

No, I haven't. The Python workaround was sufficient for my purposes.

Thanks,
Sunil

Thanks for clarifying :)

Added methods to add missing storage node in rev25326.

To add a default storage node to the scene for a single node:
someStorableNode.AddDefaultStorageNode()

To create all missing storage nodes and save the entire scene:
ioManager = slicer.app.ioManager()
ioManager.saveNodes("SceneFile", { "fileName": "savedscene.mrml" })