The piece of software that make possible sorting items in Plone contains hidden additional features.
Normally, when you call a sort action in Plone, you call an URL like this:
The Plone UI has no way today for performing action like this:
But the feature is inside Plone: in this way you will sort a folder automatically, using a field value for comparison (like "title", or "created").
The folder_position script use internally the orderObjects API. This last method has some additional nice feature that unluckily folder_position not expone to users. But we can fix this.
What this product do
This product add to Plone some of the features that follow, patching Plone a little (see also #11317).
Can now sort a folder in reverse order
You can call URL like this:
and this will sort the folder using reverse criteria.
Add "delta" criteria to the sorting mechanism
You can call:
Add a nice Plone interface for all those features
Your "Action" menu will be populated with a new entry: "Sort folder". This will give to the user a Plone form where he can perform common sort operation.
What this product doesn't
This product only reveal feature that are already in Plone (inside the orderObjects method). It will not add new sorting behaviour.