symfony - Adesigns Bundle Fullcalendar extends class -

how can extend because have done :

namespace calendar\calendarbundle\entity;  use adesigns\calendarbundle\entity\evententity; use doctrine\orm\mapping orm;  /**  * seance  *  * @orm\table(name="seance")  * @orm\entity(repositoryclass="calendar\calendarbundle\repository\seancerepository")  */ class seance extends evententity {  /**  * @var int  *  * @orm\column(name="id", type="integer")  * @orm\id  * @orm\generatedvalue(strategy="auto")  */ protected  $id;  /**  * @var string  *  * @orm\column(name="seance_type", type="string", length=8)  */ private $seancetype; } 

and when

php app/console doctrine:schema:update --dump-sql

i have attributes of class seance

create table seance (id int auto_increment not null, seance_type varchar(8) not null, primary key(id)) default character set utf8 collate utf8_unicode_ci engine = innodb;

the problem in entity in bundle adesigns there no @orm\column before attribut