parameters: (self, records, field)
docstring: Return the ids of ``records`` that have no value for ``field``.
docstring_summary: Return the ids of ``records`` that have no value for ``field``.
docstring_tokens: Return the ids of records that have no value for field .
function: def get_missing_ids(self, records, field):
          """ Return the ids of ``records`` that have no value for ``field``. """
          field_cache = self._get_field_cache(records, field)
          for record_id in records._ids:
              if record_id not in field_cache:
                  yield record_id
function_tokens: def get_missing_ids ( self , records , field ) : field_cache = self . _get_field_cache ( records , field ) for record_id in records . _ids : if record_id not in field_cache : yield record_id