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<?php
namespace SilverStripe\VersionedAdmin\Forms;
use SilverStripe\Forms\FormField;
use SilverStripe\ORM\CMSPreviewable;
use SilverStripe\ORM\DataObject;
use SilverStripe\View\Requirements;
class HistoryViewerField extends FormField
{
/**
* Default to using the SiteTree component
*
* @var string
*/
protected $schemaComponent = 'PageHistoryViewer';
public function __construct($name, $title = null, $value = null)
Requirements::javascript('silverstripe/versioned-admin:client/dist/js/bundle.js');
Requirements::css('silverstripe/versioned-admin:client/dist/styles/bundle.css');
parent::__construct($name, $title, $value);
}
* Get the source record to view history for
* @return DataObject|null
public function getSourceRecord()
return $this->getForm() ? $this->getForm()->getRecord() : null;
* Get whether the record is previewable
* @return boolean
public function getPreviewEnabled()
$record = $this->getSourceRecord();
return $record && $record instanceof CMSPreviewable;
silverstripe /
silverstripe-versioned-admin
