Ajax Event Calendar - Erweitern mit einer Mailfunktion

function db_insert_event($input, $render) {
            global $wpdb;
            $result = $wpdb->insert($wpdb->prefix . AEC_EVENT_TABLE,
                                    array('user_id'         => $input->user_id,
                                          'title'             => $input->title,
                                          'start'            => $input->start,
                                          'end'                => $input->end,
                                          'allDay'            => $input->allDay,
                                          'repeat_freq'        => $input->repeat_freq,
                                          'repeat_int'        => $input->repeat_int,
                                          'repeat_end'        => $input->repeat_end,
                                          'category_id'        => $input->category_id,
                                          'description'        => $input->description,
                                          'link'            => $input->link,
                                          'venue'            => $input->venue,
                                          'address'            => $input->address,
                                          'city'            => $input->city,
                                          'state'            => $input->state,
                                          'zip'                => $input->zip,
                                          'country'            => $input->country,
                                          'contact'            => $input->contact,
                                          'contact_info'    => $input->contact_info,
                                          'access'            => $input->access,
                                          'rsvp'            => $input->rsvp
                                        ),
                                    array('%d',                // user_id
                                          '%s',                // title
                                          '%s',                // start
                                          '%s',                // end
                                          '%d',                // allDay
                                          '%d',                // repeat_freq
                                          '%d',                // repeat_int
                                          '%s',                // repeat_end
                                          '%d',                // category_id
                                          '%s',                // description
                                          '%s',                // link
                                          '%s',                // venue
                                          '%s',                // address
                                          '%s',                // city
                                          '%s',                // state
                                          '%s',                // zip
                                          '%s',                // country
                                          '%s',                // contact
                                          '%s',                // contact_info
                                          '%d',                // access
                                          '%d'                 // rsvp
                                        )
                                );
            if ($this->return_result($result)) {
                if ($render) {
                    $input->id = $wpdb->insert_id;        // id of newly created row
                    $this->process_event($input);
                }
            }
        }