[SOLVED] Need help with indexing a field of a subform

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Quick Update

Even though I got the school DataGridField field inside of the subform to index, searching for the school wasn't working.

Solution for searching for the subform field

I Added a custom SearchableTextExtender based on collective.dexteritytextindexer documentation.

from collective import dexteritytextindexer
from zope.component import adapts
from zope.interface import implements


class JaDMemberSearchableTextExtender(object):
    adapts(IMember)
    implements(dexteritytextindexer.IDynamicTextIndexExtender)

    def __init__(self, context):
        self.context = context

    def __call__(self):
        """Extend the searchable text with a custom string"""
        return " ".join([edu['school'] for edu in self.context.education])

ZCML:

  <adapter factory=".indexers.MemberSearchableTextExtender" name="IMember" />

I think I could have used collective.dexteritytextindexer.IDexterityTextIndexFieldConverter based on the documentation to convert the DataGridField to searchable text, but it took more than 5 minutes to understand, therefore, I used dexteritytextindexer.IDynamicTextIndexExtender instead.