eZ\Publish\Core\REST\Common\FieldTypeProcessor\BaseRelationProcessor::preProcessFieldSettingsHash PHP Метод

    public function preProcessFieldSettingsHash($incomingSettingsHash)
    {
        if (isset($incomingSettingsHash['selectionMethod'])) {
            switch ($incomingSettingsHash['selectionMethod']) {
                case 'SELECTION_BROWSE':
                    $incomingSettingsHash['selectionMethod'] = Type::SELECTION_BROWSE;
                    break;
                case 'SELECTION_DROPDOWN':
                    $incomingSettingsHash['selectionMethod'] = Type::SELECTION_DROPDOWN;
            }
        }
        return $incomingSettingsHash;
    }