Does there exist anything akin "Master Slave Widget" for PloneFormGen? Where the user choices first choice A which would generate the list of choices for choice B (below) to select?
This is a far less than ideal answer, but I've done this several times with JavaScript injected into the header with a PFG override. It's only practical for relatively simple decision trees.
The basic procedure is to on-load hide all the subsidiary controls, then reveal them as click events indicate a controlling choice. Grouping subsidiary controls into fieldsets is also handy: then you may show and hide controls as a group.
来源：https://stackoverflow.com/questions/14729963/master-slave-widget-for-ploneformgen