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Data Model Questions

Set current, then find next on a DataObjectSet


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2 Posts   1565 Views

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GuillaumeC

12 April 2011 at 3:40am Community Member, 5 Posts

I'm not sure I'm tackling this problem from the right angle, but here's my situation:

On a page that displays a single DataObject, I want to be able to link to the next / previous DataObject in a DataObjectSet.

I know one can peek the previous / next item in a DataObjectSet_Iterator, but is there a way to set the Iterator's current position to a specific item?

$current_photo = $this->getPhoto(); // DataObject of the current photo
$photos = $this->Photos(); // DataObjectSet
$iterator = $photos->getIterator(); // DataObjectSet_Iterator

$iterator->peekNext(); // DataObject
$iterator->peekPrev(); // DataObject

Thanks much for your help

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swaiba

18 April 2011 at 7:05am Forum Moderator, 1796 Posts

you might use ->toArray() instead...

alternatively set the pagesize to 1 and then use pagination (http://www.sspaste.com/paste/show/4d3ff85db4346)