Users_model::update_api_key PHP Method

    public function update_api_key($user_api_key, $user_id)
    {
        $user_id = (int) $user_id;
        $data = array('user_api_key' => $user_api_key);
        $this->db->where('user_id', $user_id);
        $this->db->update('users', $data);
        $this->events->trigger('users_model/update_api_key', $user_id);
        if ($this->db->affected_rows() == 0) {
            return FALSE;
        }
        return TRUE;
    }