db_debug = false postgres display error

[eluser]Unknown[/eluser]
Of course:

Code:

$db['default']['hostname'] = '00.00.00.00';
$db['default']['username'] = 'someuser';
$db['default']['password'] = 'somepassword';
$db['default']['database'] = 'somedb';
$db['default']['dbdriver'] = 'postgre';
$db['default']['dbprefix'] = '';
$db['default']['pconnect'] = FALSE;
$db['default']['db_debug'] = FALSE;
$db['default']['cache_on'] = FALSE;

When i try to delete a row, sometimes the database triggers an error on screen (due to Referential Integrity), but i need hide that error and continue the process.

Code:

$this->db->where('fieldid', $id);
$ret = $this->db->delete('sometable');

Do you need see something more? Let me know it.

Thank u.