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Moderators: martimiz, Sean, Ed, biapar, Willr, Ingo

like tutorial 5, but with members

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Community Member, 31 Posts

30 April 2008 at 12:32am

Hi all,

I'm trying to do something similar to tutorial 5 but with members instead of students. The idea is to have an activitypage to which members can subscribe.

The code so far looks like this :


class ActivityPage extends Page {
static $db = array(
'Date' => 'Date',
'HeureDebut' => 'Time',
'HeureFin' => 'Time',
'Lieu' => 'HTMLText',
'Titre' => 'Varchar'
static $has_one = array(
'Photo' => 'Image'
static $has_many = array(
'Participants' => 'Member'
static $defaults = array(
'ShowInMenus' => false

function getCMSFields() {
$fields = parent::getCMSFields();

$fields->addFieldToTab("Root.Content.Images", new ImageField('Photo'));

$fields->addFieldToTab( 'Root.Content.Main', new CalendarDateField( 'Date' ) );
$fields->addFieldToTab( 'Root.Content.Main', new TimeField( 'HeureDebut' ) );
$fields->addFieldToTab( 'Root.Content.Main', new TimeField( 'HeureFin' ) );
$fields->addFieldToTab( 'Root.Content.Main', new TextField( 'Lieu' ) );
$fields->addFieldToTab( 'Root.Content.Main', new TextField( 'Titre' ) );

$tablefield = new HasManyComplexTableField(
'FirstName' => 'Prénom',
'Surname' => 'Nom',
$tablefield->setAddTitle( 'Member' );

$fields->addFieldToTab( 'Root.Content.Participants', $tablefield );

return $fields;



which is basically the same code that the one in the tutorial except that I have changed Students to Participants (the name) and Student to Member (the type)

But... it crashes.

FATAL ERROR: Missing argument 1 for DataObject::get(), called in E:\www\xemecercle\silverstripe\sapphire\core\ViewableData.php on line 99 and defined
At line 1431 in E:\www\xemecercle\silverstripe\sapphire\core\model\DataObject.php

Which argument for DataObject is missing ? Any hint is welcome!