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gyro/core/model/base/fields/dbfield.blob.cls.php

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<?php
require_once dirname(__FILE__) . '/dbfield.text.cls.php'; 

/**
 * A BLOB field im DB
 * 
 * @author Gerd Riesselmann
 * @ingroup Model
 */
class DBFieldBlob extends DBFieldText {
        
        /**
         * Format values that are not NULL
         */
        protected function do_format_not_null($value) {
                if ($value !== '') {
                        return '0x' . bin2hex($value);
                }
                else {
                        return parent::format('');
                }
        }
        
        /**
         * Returns true, if the value passed fits the fields restrictions
         *
         * @param string $value
         * @return Status
         */
        public function validate($value) {
                $ret = new Status();
                $l = strlen(strval($value));
                if ($l > $this->length) {
                        $ret->append(tr(
                                '%field may have no more than %num bytes', 
                                'core', 
                                array(
                                        '%field' => $this->get_field_name_translation(),
                                        '%num' => $this->length
                                )
                        ));
                }
                else if ($l == 0 && !$this->get_null_allowed()) {
                        $ret->append(tr(
                                '%field may not be empty', 
                                'core', 
                                array(
                                        '%field' => $this->get_field_name_translation(),
                                )
                        ));
                }
                return $ret;
        }       
}

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