function searchGerente(Gerente $c)
 {
     require_once '../conexion.php';
     require_once '../model.business/Gerente.php';
     require_once '../model.business/Persona.php';
     try {
         $conexion = new conexion();
         $gerente = new Gerente();
         $sql = "SELECT c.nombre, c.apellido,c.rut,c.telefono, c.email FROM gerente c " . "INNER JOIN login l ON c.username = l.username " . "WHERE l.username = '******' AND l.contraseƱa = '" . $c->getPassword() . "';";
         $conn = $conexion->conn();
         $query = $conn->query($sql);
         $rows = $query->fetchAll();
         foreach ($rows as $row) {
             $gerente->setUsername($c->getUsername());
             $gerente->setPassword($c->getPassword());
             $gerente->setRol(1);
             $gerente->setNombre($row["nombre"]);
             $gerente->setApellido($row["apellido"]);
             $gerente->setRut($row["rut"]);
             $gerente->setTelefono($row["telefono"]);
             $gerente->setEmail($row["email"]);
             return $gerente;
         }
         return null;
     } catch (Exception $ex) {
         $ex->getTraceAsString();
     }
 }