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Template Questions /

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

Getting Random Children

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2 Posts   1077 Views


Community Member, 3 Posts

19 July 2012 at 9:22am

I'm trying to retrieve random children of a product group page. I can retrieve the product group page from teh template, but I can't call any more custom functions. currently in my Page.php I'm using

function RandomChildren($count = 2)
        $pages = DataObject::get("SiteTree","ParentID = $this->ID","RAND()",null,$count);
        return $pages;

And to call in the template I'm using

<% control RandomChildren(2) %>
<% end_control %>

But the Debug isn't even showing, and I'm in "Dev" mode

I've tried other methods, and also found that at one point, if I retrieve a page using

return DataObject::get('SiteTree','ParentID = $this->ID);

I will debug and see the results of the object as expected,

but when I use this to get random children it fails, if i debug the ID of the object, it's empty

$page = DataObject::get('SiteTree','ParentID = $this->ID)

This site is very complicated, but the logistics should work. I've used this code before on other projects, and have never seen this problem, any thoughts anyone???


Community Member, 9 Posts

4 November 2012 at 3:36am

Edited: 04/11/2012 3:38am

What version of SS are your using?

You could do something like this:

function RandomChildren($count = 2) {
	return SiteTree::get()->filter('ParentID', $this->ID)->sort('RAND()')->limit($count);

I gave this a quick try and it works fine. Hope this works for you!