silverstripe-subsites/code/FileSubsites.php

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<?php
/**
* Extension for the File object to add subsites support
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*
* @package subsites
*/
class FileSubsites extends DataObjectDecorator {
function extraDBFields() {
// This is hard-coded to be applied to SiteTree, unfortunately
if($this->owner->class == 'File') {
return array(
'has_one' => array(
'Subsite' => 'Subsite',
),
);
}
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}
/**
* Amends the CMS tree title for folders in the Files & Images section.
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* Prefixes a '* ' to the folders that are accessible from all subsites.
*/
function alternateTreeTitle() {
if($this->owner->SubsiteID == 0) return " * " . $this->owner->Title;
else return $this->owner->Title;
}
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/**
* Add subsites-specific fields to the folder editor.
*/
function updateCMSFields(FieldSet &$fields) {
if($this->owner instanceof Folder) {
$sites = Subsite::accessible_sites('CMS_ACCESS_AssetAdmin');
if($sites)$fields->addFieldToTab('Root.Details', new DropdownField("SubsiteID", "Subsite", $sites->toDropdownMap('ID', 'Title', "(Public)")));
}
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if($this->owner->SubsiteID == 0 && !Permission::check('EDIT_PERMISSIONS') && !Permission::check('SUBSITE_ASSETS_EDIT')){
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$fields->removeFieldFromTab("Root", "Upload");
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$fields = $fields->transform(new ReadonlyTransformation());
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}
}
/**
* Update any requests to limit the results to the current site
*/
function augmentSQL(SQLQuery &$query) {
// If you're querying by ID, ignore the sub-site - this is a bit ugly...
if(strpos($query->where[0], ".`ID` = ") === false && strpos($query->where[0], ".ID = ") === false) {
if($context = DataObject::context_obj()) $subsiteID = (int)$context->SubsiteID;
else $subsiteID = (int)Subsite::currentSubsiteID();
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// The foreach is an ugly way of getting the first key :-)
foreach($query->from as $tableName => $info) {
$query->where[] = "`$tableName`.SubsiteID IN (0, $subsiteID)";
break;
}
$query->orderby = 'SubsiteID' . ($query->orderby ? ', ' : '') . $query->orderby;
}
}
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function augmentBeforeWrite() {
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if(!$this->owner->ID && !$this->owner->SubsiteID) $this->owner->SubsiteID = Subsite::currentSubsiteID();
}
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function onAfterUpload() {
$this->owner->SubsiteID = Subsite::currentSubsiteID();
$this->owner->write();
}
function alternateCanEdit() {
// Check the CMS_ACCESS_SecurityAdmin privileges on the subsite that owns this group
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$subsiteID = Session::get('SubsiteID');
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if($subsiteID&&$subsiteID == $this->owner->SubsiteID) return true;
else {
Session::set('SubsiteID', $this->owner->SubsiteID);
$access = Permission::check('CMS_ACCESS_AssetAdmin');
Session::set('SubsiteID', $subsiteID);
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return $access;
}
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}
}