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Data Model Questions /

Ajax form call and save a many_many relation


2 Posts   435 Views


Community Member, 37 Posts

12 March 2014 at 11:37pm

Edited: 20/03/2014 2:05am

Hey there,
[SS3] I want to refactore my form action method... but got a problem with the $form parameter using ajax.
It works with parameter $data only and then using $db = DB::query('INSERT' or 'UPDATE'); but now I need to update a many_many table ("campaign_campaignphases") and don't want to create all SQL queries manually.

jQuery ajax call:

$('form[data-async] .btn-primary').on('click', function(event) {
var form = $(this).closest('form');
// Get the specific action i.e. SaveCampaign
var action = $(this).attr('name').split('action_')[1];

type: form.attr('method'),
url: action,
data: form.serialize(),
success: function(response, status) {
// doing some...

and the action itself in CampaignHolderPage.php should update a Campaign DataObject with

private static $many_many = array(
'CampaignPhases' => 'CampaignPhase'

public function SaveCampaign($data, $form) {
// Existing or new entry
$dbId = CampaignHolderPage::decryptId($data['ID']);
if ($data['ID'] != '' && $object = DataObject::get_by_id('Campaign', $dbId)) {

// Phases
$selectedElements = $data['CampaignPhases'];
foreach($selectedElements as $selectedElement => $selectedId) {
$reference = DataObject::get_by_id('CampaignPhase', $selectedId);
} else {
// Update...
$object = new Campaign();

Request error:
ERROR [Warning]: Missing argument 2 for CampaignHolderPage_Controller::SaveCampaign()

Thx for any ideas or helping links


Community Member, 37 Posts

13 March 2014 at 7:36am

My question is: How can I get $form->saveInto() work via ajax?