#1 — Subfields cannot all be cleared in a field, edit is ignored

A recordfield cannot be cleared of all values when editing. The field will just be ignored and the old values remain. If at least one sub field has a value, it works though. This is why you do not notice this as long as at least one sub field is required.

I have tested this in versions 1.1a2 and 0.9.6.


When creating a recordfield with no mandatory subfields

    ateapi.RecordField(
        name='test_empty',
        subfields=('field1',
                'field2'),
        subfield_types = {'field1':'lines','field2':'lines'},
        widget=ateapi.RecordWidget(
            label=_("Test empty"),
        ),
    ),

If you enter values in this field and save, the values will remain. If you then subsequently clear all subfields and save, the old values will still be there. It seems Plone never processes the field in that case.