class.arException.php

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<?php

class arException extends Exception {

        const UNKNONWN_EXCEPTION = - 1;
        const COLUMN_DOES_NOT_EXIST = 1001;
        const COLUMN_DOES_ALREADY_EXIST = 1002;
        const RECORD_NOT_FOUND = 1003;
        const GET_UNCACHED_OBJECT = 1004;
        const LIST_WRONG_LIMIT = 1005;
        const LIST_ORDER_BY_WRONG_FIELD = 1006;
        const LIST_JOIN_ON_WRONG_FIELD = 1007;
        const COPY_DESTINATION_ID_EXISTS = 1008;
        const PRIVATE_CONTRUCTOR = 1009;
        const FIELD_UNKNOWN = 1010;
        protected static $message_strings = array(
                self::UNKNONWN_EXCEPTION => 'Unknown Exception',
                self::COLUMN_DOES_NOT_EXIST => 'Column does not exist:',
                self::COLUMN_DOES_ALREADY_EXIST => 'Column does already exist:',
                self::RECORD_NOT_FOUND => 'No Record found with PrimaryKey:',
                self::GET_UNCACHED_OBJECT => 'Get uncached Object from Cache:',
                self::LIST_WRONG_LIMIT => 'Limit, to value smaller than from value:',
                self::LIST_JOIN_ON_WRONG_FIELD => 'Join on non existing field: ',
                self::COPY_DESTINATION_ID_EXISTS => 'Copy Record: A record with the Destination-ID already exists.',
                self::PRIVATE_CONTRUCTOR => 'Constructor cannot be accessed.',
                self::FIELD_UNKNOWN => 'Field Unknown.',
        );
        protected $message = '';
        protected $code = self::UNKNONWN_EXCEPTION;
        protected $additional_info = '';


        public function __construct($exception_code = self::UNKNONWN_EXCEPTION, $additional_info = '') {
                $this->code = $exception_code;
                $this->additional_info = $additional_info;
                $this->assignMessageToCode();
                parent::__construct($this->message, $this->code);
        }


        protected function assignMessageToCode() {
                $this->message = 'ActiveRecord Exeption: ' . self::$message_strings[$this->code] . $this->additional_info;
        }


        public function __toString() {
                return implode('<br>', array( get_class($this), $this->message ));
        }
}

?>