silverstripe-subsites/code/controller/SubsiteXHRController.php

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<?php
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namespace SilverStripe\Subsites\Controller;
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use SilverStripe\Admin\LeftAndMain;
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use SilverStripe\Security\Permission;
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use SilverStripe\Subsites\Model\Subsite;
/**
* Section-agnostic PJAX controller.
*/
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class SubsiteXHRController extends LeftAndMain
{
/**
* @todo Temporary addition due to new requirements for LeftAndMain
* descendants in SS4. Consider alternate implementation.
*/
private static $url_segment = 'subsite_xhr';
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/**
* Relax the access permissions, so anyone who has access to any CMS subsite can access this controller.
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* @param null $member
* @return bool
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*/
public function canView($member = null)
{
if (parent::canView()) {
return true;
}
if (Subsite::all_accessible_sites()->count() > 0) {
return true;
}
return false;
}
/**
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* Allow access if user allowed into the CMS at all.
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*/
public function canAccess()
{
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// Allow if any cms access is available
return Permission::check([
'CMS_ACCESS', // Supported by 3.1.14 and up
'CMS_ACCESS_LeftAndMain'
]);
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}
public function getResponseNegotiator()
{
$negotiator = parent::getResponseNegotiator();
$self = $this;
// Register a new callback
$negotiator->setCallback('SubsiteList', function () use (&$self) {
return $self->SubsiteList();
});
return $negotiator;
}
/**
* Provide the list of available subsites as a cms-section-agnostic PJAX handler.
*/
public function SubsiteList()
{
return $this->renderWith('Includes/SubsiteList');
}
}