silverstripe-subsites/code/extensions/ErrorPageSubsite.php

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<?php
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namespace SilverStripe\Subsites\Extensions;
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use SilverStripe\Core\Config\Config;
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use SilverStripe\ORM\DataObject;
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use SilverStripe\CMS\Model\SiteTree;
use SilverStripe\ORM\DataExtension;
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use SilverStripe\Subsites\Model\Subsite;
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class ErrorPageSubsite extends DataExtension
{
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/**
* Alter file path to generated a static (static) error page file to handle error page template on different sub-sites
*
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* @see Error::get_filepath_for_errorcode()
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*
* FIXME since {@link Subsite::currentSubsite()} partly relies on Session, viewing other sub-site (including main site) between
* opening ErrorPage in the CMS and publish ErrorPage causes static error page to get generated incorrectly.
*/
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public function alternateFilepathForErrorcode($statusCode, $locale = null)
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{
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$static_filepath = Config::inst()->get($this->owner->ClassName, 'static_filepath');
$subdomainPart = "";
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// Try to get current subsite from session
$subsite = Subsite::currentSubsite(false);
// since this function is called from Page class before the controller is created, we have to get subsite from domain instead
if (!$subsite) {
$subsiteID = Subsite::getSubsiteIDForDomain();
if ($subsiteID != 0) {
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$subsite = DataObject::get_by_id(Subsite::class, $subsiteID);
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} else {
$subsite = null;
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}
}
if ($subsite) {
$subdomain = $subsite->domain();
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$subdomainPart = "-{$subdomain}";
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}
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if (singleton(SiteTree::class)->hasExtension('Translatable') && $locale && $locale != Translatable::default_locale()) {
$filepath = $static_filepath . "/error-{$statusCode}-{$locale}{$subdomainPart}.html";
} else {
$filepath = $static_filepath . "/error-{$statusCode}{$subdomainPart}.html";
}
return $filepath;
}
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}