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*SOLVED* - Can't seem to use Summary() and other data function on Virtual page properties
4 March 2013 at 7:30pm
Version 2.4
I have a virtual page derived from a normal page. This normal page has a text field. You could even take the default Content field on a page as an example.
I then have a holder page to display a list of these pages and allow the user to click through to the page itself. This holder loops these using:
<% control Children %>
$Content.Summary(40).
<% end_control %>In the template, I am truncating the text in Content using $Content.Summary(40).
This works as expected where the child is a real data object. But when it is a virtual page, the output is blank. However in these cases if I just change the template to be $Content (without calling Summary), the text is output in full.
I found that the above is true for any native function supported by the datatype (in this case, and HTMLField)
Is this a framework limitation? Is there a workaround?
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Re: *SOLVED* - Can't seem to use Summary() and other data function on Virtual page properties
4 March 2013 at 8:22pm Last edited: 4 March 2013 8:32pm
Found the solution to this, and it seems that this is a Framework limitation.
I had to replace $Children with a custom method in the holder class file that detected if the current child was a virtual page, and load the real data object from the master content ID.
MyHolder.php - MyHolderController Class
public function realPages() {
$children = $this->Children();
$return = new DataObjectSet();
foreach ($children as $child)
{
if($child->ClassName == 'VirtualPage') {
// Current child is virtual, get the real page
$virtualPage = DataObject::get_by_id('VirtualPage', $child->ID);
$realPage = DataObject::get_by_id('Page', $virtualPage->CopyContentFromID);
} else {
// Current child is real, just use it as it is
$realPage = $child;
}
$return->push($realPage);
}
return $return;
}Then in the template change
<% control Children %>
To:
<% control realPages %>
The one thing with this is that the URL link and ID is that of the Virtual pages master, so I have to come up with some funky setters there.
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Re: *SOLVED* - Can't seem to use Summary() and other data function on Virtual page properties
4 March 2013 at 9:24pm
This is turning into a bit of a nightmare actually. After doing the above, I cannot find a way to provide the loop with the virtual page's $Link and $ID. Obviously the new method is returning the object of the page the virtual one derives from, but there doesn't seem to be a way to return a mix of the virtual page properties and the real page's properties that actually support using the built in methods.
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