Plone Vocabulary works fine in Plone Classic but is empty in Volto

[rbrown12 (Rhenne Brown)]

@jaroel,
Using the following code:

unit = context.aq_parent.define_unit
alt_brains1 = api.content.find(portal_type='unit_goal', unit=unit)
print('alt_brains1', alt_brains1)
alt_brains2 = api.content.find(unit=unit)
print('alt_brains2', alt_brains2)

This is the output I got (also using pdb debugger):

(Pdb) for item in api.content.find(portal_type='unit_goal', unit=context.aq_parent.define_unit): item.unit_goal
'AAC Program/Unit Goal 3'
'AAC Program/Unit Goal 1.'
'AAC Program/Unit Goal 2.'
(Pdb) for item in api.content.find(unit=context.aq_parent.define_unit): item.unit_goal
'AAC Program/Unit Goal 1.'
Missing.Value
Missing.Value
Missing.Value
Missing.Value
'AAC Program/Unit Goal 3'
'AAC Program/Unit Goal 1.'
'AAC Program/Unit Goal 2.'
Missing.Value

I see for the second one with api.content.find(portal_type='unit_goal', unit=unit) it returns Missing.Value as one of the results.

[espenmn (Espen)]

@rbrown12

1. The vocabulary mentioned in this post is meant to show the unit goals entered in the site, depending on the parent content type being used. The two parent content types are 'assessment_unit' and 'assessment_unit_program'. In other words, this vocabulary only shows the goals entered through the parent content type (e.g. assessment_unit, assessment_unit_program). It works fine in the Plone Classic (non-Volto) frontend. However, it is when I go to serialize the content in the Volto frontend where I am unable to get anything for the mentioned goals.

To me, much of the code looks strange (sorry, I dont have time to look at it too closely now)

1. If you have an item in a folder, and the folder has a field 'unit_goal' and 'unit_goal' also is an index, you can get it, for example by :
   goal = context.aq_parent.unit_goal.

2. Then you can find (other) items inside that folder with plone.api.find(portal_type="UnitType", unit_goal=goal)

(assuming unit_goal if a string or something else 'usable')

Then, when you loop through the items, you append value, token and title,
I think I have used brain.UID for the value and/or token and brain.Title for title.

Then, I would look up the item (if you need that) in the template by uid, for example

plone.api.content.get(UID=something)

Alternatively, you could store a relation and look it up by 'to_object' ( https://docs.plone.org/external/plone.app.dexterity/docs/advanced/references.html ), but that is probably 'more difficult to ''understand'' how to do'.

[jaroel (Roel Bruggink)]

ok, please use unit = context.aq_parent.define_unit instead of unit = api.content.get(UID=context.aq_parent.UID()).define_unit and things should be moving forward again.

If this doesn't help, you should find a Plone solution provider nearby.