CodeIgniter/PHP Active Record won't increment an integer

Question

Here\'s my query, in CodeIgniter\'s Active Record:

function calculate_invites($userid)
{
    $this->db->where(\'id\', $userid)
               ->upda         


        

Answer 1

This doesn't work with update, only with set.

This should work:

$this->db->where('id', $userid);
$this->db->set('invites', 'invites-1', FALSE);
$this->db->set('sentinvites', 'sentinvites+1', FALSE);
$this->db->update('users');

This may work too (the user guide is a bit unclear):

$this->db->where('id', $userid);
$this->db->set(array('invites' => 'invites-1', 'sentinvites' => 'sentinvites+1'), FALSE);
$this->db->update('users');