source/Application/Controller/FrontendController.php
public function getMustFillFields()
    {
        if ($this->_aMustFillFields === null) {
            $this->_aMustFillFields = false;

            // passing must-be-filled-fields info
            $mustFillFields = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('aMustFillFields');
            if (is_array($mustFillFields)) {
                $this->_aMustFillFields = array_flip($mustFillFields);
            }
        }

        return $this->_aMustFillFields;
    }
public function getMustFillFields()
    {
        if ($this->_aMustFillFields === null) {
            $this->_aMustFillFields = false;

            // passing must-be-filled-fields info
            $mustFillFields = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('aMustFillFields');
            if (is_array($mustFillFields)) {
                $this->_aMustFillFields = array_flip($mustFillFields);
            }
        }

        return $this->_aMustFillFields;
    }
public function getMustFillFields ( ) { if ( $ this -> _aMustFillFields === null ) { $ this -> _aMustFillFields = false ; // passing must-be-filled-fields info $ mustFillFields = \ OxidEsales \ Eshop \ Core \ Registry :: getConfig ( ) -> getConfigParam ( 'aMustFillFields' ) ; if ( is_array ( $ mustFillFields ) ) { $ this -> _aMustFillFields = array_flip ( $ mustFillFields ) ; } } return $ this -> _aMustFillFields ; }
Returns array of fields which must be filled during registration

@return array | bool
Returns array of fields which must be filled during registration