$default_sort on pages beneath SiteTree class has no effects at all

[sommereder]

I can change the value inside SiteTree model, but when I try to give subpages a default sort, the variable $default_sort has no effect.

[simonwelsh]

It does, you just need to be getting instances of that class rather than SiteTree (so MyPage::get()).

[sommereder]

So it shall not effect the page's order in the CMS SiteTree?

As example: I would like to sort pages by Date for a Blog. The pages should be displayed by test in the CMS SiteTree so that the newest is shown first.

[simonwelsh]

You can override stageChildren($showAll = false) (the default implementation's in Hierarchy) on your holder page type to achieve this.

[sommereder]

Sounds good.

How to achieve to put the latest created page on top without loosing the ability to sort manually by drag and drop?

Right now I have this code inside onBeforeWrite() but it's not executed each time I create a page, what's really wired...

if(!$this->FirstSort) {
$_parentID = ($this->ParentID) ? $this->ParentID : 0;
$_siblings = BlogArticlePage::get()->filter(array('ParentID' => $_parentID))->sort('Sort');
foreach($_siblings as $_sibling) {
$_sibling->Sort = intval($_sibling->Sort, 10) + 1;
}
$this->Sort = 0;
$this->FirstSort = true;
}

I think having the ability to add new pages on top or bottom of its siblings should be an easy to handle option of SilverStripe CMS core.

[sommereder]

Ok, Sort starts with 1 not with 0. Got that. Now I just need to find out how to write back the new Sort value for all other objects.