protected function validateCodeCurrency()
    {
        $field = 'code';

        if ($this->isExcluded($field)) {
            return null;
        }

        $value = $this->getSubmitted($field);

        if ($this->isUpdating() && !isset($value)) {
            $this->unsetSubmitted($field);
            return null;
        }

        $label = $this->translation->text('Code');

        if (empty($value)) {
            $this->setErrorRequired($field, $label);
            return false;
        }

        if (preg_match('/^[a-zA-Z]{3}$/', $value) !== 1) {
            $this->setErrorInvalid($field, $label);
            return false;
        }

        $code = strtoupper($value);
        $updating = $this->getUpdating();

        if (isset($updating['code']) && $updating['code'] === $code) {
            return true;
        }

        $existing = $this->currency->get($code);

        if (!empty($existing)) {
            $this->setErrorExists($field, $label);
            return false;
        }

        $this->setSubmitted($field, $code);
        return true;
    }
protected function validateCodeCurrency()
    {
        $field = 'code';

        if ($this->isExcluded($field)) {
            return null;
        }

        $value = $this->getSubmitted($field);

        if ($this->isUpdating() && !isset($value)) {
            $this->unsetSubmitted($field);
            return null;
        }

        $label = $this->translation->text('Code');

        if (empty($value)) {
            $this->setErrorRequired($field, $label);
            return false;
        }

        if (preg_match('/^[a-zA-Z]{3}$/', $value) !== 1) {
            $this->setErrorInvalid($field, $label);
            return false;
        }

        $code = strtoupper($value);
        $updating = $this->getUpdating();

        if (isset($updating['code']) && $updating['code'] === $code) {
            return true;
        }

        $existing = $this->currency->get($code);

        if (!empty($existing)) {
            $this->setErrorExists($field, $label);
            return false;
        }

        $this->setSubmitted($field, $code);
        return true;
    }
protected function validateCodeCurrency ( ) { $ field = 'code' ; if ( $ this -> isExcluded ( $ field ) ) { return null ; } $ value = $ this -> getSubmitted ( $ field ) ; if ( $ this -> isUpdating ( ) && ! isset ( $ value ) ) { $ this -> unsetSubmitted ( $ field ) ; return null ; } $ label = $ this -> translation -> text ( 'Code' ) ; if ( empty ( $ value ) ) { $ this -> setErrorRequired ( $ field , $ label ) ; return false ; } if ( preg_match ( '/^[a-zA-Z]{3}$/' , $ value ) !== 1 ) { $ this -> setErrorInvalid ( $ field , $ label ) ; return false ; } $ code = strtoupper ( $ value ) ; $ updating = $ this -> getUpdating ( ) ; if ( isset ( $ updating [ 'code' ] ) && $ updating [ 'code' ] === $ code ) { return true ; } $ existing = $ this -> currency -> get ( $ code ) ; if ( ! empty ( $ existing ) ) { $ this -> setErrorExists ( $ field , $ label ) ; return false ; } $ this -> setSubmitted ( $ field , $ code ) ; return true ; }
Validates currency code
@return boolean|null
Validates currency code