source/Application/Model/RequiredFieldValidator.php
public function validateFieldValue($sFieldValue)
    {
        $blValid = true;
        if (is_array($sFieldValue)) {
            $blValid = $this->_validateFieldValueArray($sFieldValue);
        } else {
            if (!trim($sFieldValue)) {
                $blValid = false;
            }
        }

        return $blValid;
    }
public function validateFieldValue($sFieldValue)
    {
        $blValid = true;
        if (is_array($sFieldValue)) {
            $blValid = $this->_validateFieldValueArray($sFieldValue);
        } else {
            if (!trim($sFieldValue)) {
                $blValid = false;
            }
        }

        return $blValid;
    }
public function validateFieldValue ( $ sFieldValue ) { $ blValid = true ; if ( is_array ( $ sFieldValue ) ) { $ blValid = $ this -> _validateFieldValueArray ( $ sFieldValue ) ; } else { if ( ! trim ( $ sFieldValue ) ) { $ blValid = false ; } } return $ blValid ; }
Validates field value.

@param string $sFieldValue Field value

@return bool
Validates field value .