src/DcGeneral/Data/Driver.php
public function resetFallback($strField)
    {
        // @codingStandardsIgnoreStart
        @trigger_error(__CLASS__ . '::' . __METHOD__ . ' is deprecated - handle resetting manually', E_USER_DEPRECATED);
        // @codingStandardsIgnoreEnd

        $metaModel = $this->getMetaModel();
        $attribute = $metaModel->getAttribute($strField);
        $ids       = $metaModel->getIdsFromFilter(null);

        if ($attribute instanceof IComplex) {
            $attribute->unsetDataFor($ids);
        }
        if ($attribute instanceof ITranslated) {
            $attribute->unsetValueFor($ids, $this->getCurrentLanguage());
        }
        if ($attribute instanceof IAttribute) {
            $data = array();
            foreach ($ids as $id) {
                $data[$id] = null;
            }
            $attribute->setDataFor($data);
        }

        throw new \RuntimeException('Unknown attribute or type ' . $strField);
    }
public function resetFallback($strField)
    {
        // @codingStandardsIgnoreStart
        @trigger_error(__CLASS__ . '::' . __METHOD__ . ' is deprecated - handle resetting manually', E_USER_DEPRECATED);
        // @codingStandardsIgnoreEnd

        $metaModel = $this->getMetaModel();
        $attribute = $metaModel->getAttribute($strField);
        $ids       = $metaModel->getIdsFromFilter(null);

        if ($attribute instanceof IComplex) {
            $attribute->unsetDataFor($ids);
        }
        if ($attribute instanceof ITranslated) {
            $attribute->unsetValueFor($ids, $this->getCurrentLanguage());
        }
        if ($attribute instanceof IAttribute) {
            $data = array();
            foreach ($ids as $id) {
                $data[$id] = null;
            }
            $attribute->setDataFor($data);
        }

        throw new \RuntimeException('Unknown attribute or type ' . $strField);
    }
Reset the fallback field.

This clears the given property in all items in the data provider to an empty value.

@param string $strField The field to reset.

@return void

@throws \RuntimeException For invalid ids.