Collective Easyform - Subforms?

mtrebron · January 17, 2022, 10:06am

Is there an option to create subforms with collective easyform or should I use z3c.form for this?

I noticed a reference to subforms in the sasyform saveddata traversal adapter, but am not sure how it is relevant...

collective/collective.easyform/blob/master/src/collective/easyform/browser/actions.py#L55

    
      
          from zope.interface import implementer
          from zope.interface import noLongerProvides
          from zope.publisher.interfaces.browser import IBrowserRequest
          from zope.schema import getFieldsInOrder
          from ZPublisher.BaseRequest import DefaultPublishTraverse
          
          

          
PMF = MessageFactory("plone")
          
          

          
@adapter(ISavedDataFormWrapper, IBrowserRequest)
          class SavedDataTraversal(WrapperWidgetTraversal):
              def traverse(self, name, ignored):
                  form = self._prepareForm()
                  alsoProvides(self.request, IDeferSecurityCheck)
                  form.update()
                  noLongerProvides(self.request, IDeferSecurityCheck)
                  for subform in form.subforms:
                      if not hasattr(subform, "subforms"):
                          continue
                      for subsubform in subform.subforms:

Is this still the recommended way when working with z3c.form?
https://docs.plone.org/develop/plone/forms/z3c.form.html#subforms

zopyx · January 17, 2022, 7:47pm

What are subforms? Usecase?

mtrebron · January 17, 2022, 9:25pm

Usecase is: employee types tracking id from the label of a return package, the order with all line items is returned in subform, user then selects the returned item from the order and a RETINS document is spit out to the seller...

The order data and tracking id are in a relational database and will be provided to the widget by way of a dynamic vocabulary.

fredvd · January 19, 2022, 9:48am

What you can do is break up the workflow in multiple forms and let the first form to query/lookup the tracking id post its results to the second form which retrieves the order. But from your description of the functionality a custom z3c.form in python it's at best prototyping to try to achieve this in easyform instead of writing a custom view with a z3c.form defined in Python.

(b.t.w. Plone/Zope still uses z3c.form 3.x as in z3c.form 4.x there were some breaking changes/deprecations. there is some more information on the z3c.form pypi page. z3c.form · PyPI - One of the removed features are ObjectSubForms

mtrebron · January 19, 2022, 10:04am

Thank you @fredvd I looked at that by making the first easyform the default document in a folder and then an attempt to use traverse and pass the value to a second form.

This resulted in strange layout artifacts, where the portlets would show under the form. And, the second form resulted in becoming submitted without user interaction... Another approach I then considered was to use custom scripting as an action handler, but I quiclky rejected that from a maintenance perspective.

So if it takes a lot of situps and custom code, I might as well write it on the filesystem. I am now experimenting with the DGFTreeSelect fieldwidget, which is already in use in other parts of the site.