silverstripe-cms/code/Controllers/SilverStripeNavigatorItem_ArchiveLink.php
Guy Sartorelli c02549cf30 FIX Allow empty PreviewURLs for CMSPreviewable objects
An empty PreviewURL will result in the "no preview available" message
displaying instead of a 404 error.
2022-05-06 14:37:35 +12:00

72 lines
2.5 KiB
PHP

<?php
namespace SilverStripe\CMS\Controllers;
use SilverStripe\CMS\Model\RedirectorPage;
use SilverStripe\Control\Controller;
use SilverStripe\Core\Convert;
use SilverStripe\ORM\DataObject;
use SilverStripe\ORM\FieldType\DBDatetime;
use SilverStripe\ORM\FieldType\DBField;
use SilverStripe\Versioned\Versioned;
class SilverStripeNavigatorItem_ArchiveLink extends SilverStripeNavigatorItem
{
/** @config */
private static $priority = 40;
public function getHTML()
{
$linkClass = $this->isActive() ? 'ss-ui-button current' : 'ss-ui-button';
$linkTitle = _t('SilverStripe\\CMS\\Controllers\\ContentController.ARCHIVEDSITE', 'Preview version');
$recordLink = Convert::raw2att(Controller::join_links(
$this->record->AbsoluteLink(),
'?archiveDate=' . urlencode($this->record->LastEdited ?? '')
));
return "<a class=\"{$linkClass}\" href=\"$recordLink\" target=\"_blank\">$linkTitle</a>";
}
public function getTitle()
{
return _t('SilverStripe\\CMS\\Controllers\\SilverStripeNavigator.ARCHIVED', 'Archived');
}
public function getMessage()
{
$date = Versioned::current_archived_date();
if (empty($date)) {
return null;
}
/** @var DBDatetime $dateObj */
$dateObj = DBField::create_field('Datetime', $date);
$title = _t('SilverStripe\\CMS\\Controllers\\ContentController.NOTEWONTBESHOWN', 'Note: this message will not be shown to your visitors');
return "<div id=\"SilverStripeNavigatorMessage\" title=\"{$title}\">"
. _t('SilverStripe\\CMS\\Controllers\\ContentController.ARCHIVEDSITEFROM', 'Archived site from')
. "<br />" . $dateObj->Nice() . "</div>";
}
public function getLink()
{
$link = $this->record->PreviewLink();
return $link ? Controller::join_links($link, '?archiveDate=' . urlencode($this->record->LastEdited ?? '')) : '';
}
public function canView($member = null)
{
/** @var Versioned|DataObject $record */
$record = $this->record;
return (
$record->hasExtension(Versioned::class)
&& $record->hasStages()
&& $this->isArchived()
// Don't follow redirects in preview, they break the CMS editing form
&& !($record instanceof RedirectorPage)
&& $this->getLink()
);
}
public function isActive()
{
return $this->isArchived();
}
}