Error ainsertar registro con doctrine 2

[wilmer30]

Hola:
Intento guardar un registro:

Código PHP:

      public function nuevoRoles($datos){
        $per = new ApplicationEntityRoles();
        $per->setName($datos['name']);
//         $per->setDefault(1);
//         $per->setModified('2013-12-05 10:30:30');
//         $per->setCreated('2013-12-05 10:30:30');
//         $per->setId(null);
        $this->em->persist($per);
        $this->em->flush();
        
    } 
   

pero me arroja este error, y no tengo idea de por que:

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'default, modified, created) VALUES ('Wil', NULL, NULL, NULL)' at line 1' in C:\xampp\htdocs\bcbtram\library\Doctrine\DBAL\Stat ement.php:138

[wilmer30]

Aclaro que Modifies y Created son de tipo DateTime, que tambien pueden aceptar NULL, cambie los valores asi:

Código PHP:

      public function nuevoRoles($datos){
        $per = new ApplicationEntityRoles;
        $per->setName($datos['name']);
        $per->setDefault(true);
        $per->setModified(new DateTime("now"));
        $per->setCreated(new DateTime("now"));
        $this->em->persist($per);
        $this->em->flush();    
    } 
   

y el error:

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'default, modified, created) VALUES ('asdf', 1, '2013-05-22 22:46:39', '2013-05-2' at line 1' in C:\xampp\htdocs\bcbtram\library\Doctrine\DBAL\Stat ement.php:138

[GatorV]

default es una palabra reservada en SQL, no la puedes usar como nombre de columna.

Saludos.