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 {
// If this is set to true, all folders created will be default be
// considered 'global', unless set otherwise
static $default_root_folders_global = false;
function extraStatics() {
if(!method_exists('DataObjectDecorator', 'load_extra_statics')) {
if($this->owner->class != 'File') return null;
}
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');
$dropdownValues = ($sites) ? $sites->toDropdownMap() : array();
$dropdownValues[0] = 'All sites';
ksort($dropdownValues);
if($sites)$fields->addFieldToTab('Root.Details', new DropdownField("SubsiteID", "Subsite", $dropdownValues));
}
}
/**
* Update any requests to limit the results to the current site
*/
function augmentSQL(SQLQuery &$query) {
// If you're querying by ID, ignore the sub-site - this is a bit ugly... (but it was WAYYYYYYYYY worse)
if(!$query->where || !preg_match('/\.(\'|"|`|)ID(\'|"|`|)/', $query->where[0])) {
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if($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) {
$where = "\"$tableName\".\"SubsiteID\" IN (0, $subsiteID)";
$query->where[] = $where;
break;
}
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// Ordering when deleting doesn't make sense
if(!$query->delete) {
$query->orderby = "\"SubsiteID\"" . ($query->orderby ? ', ' : '') . $query->orderby;
}
}
}
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function onBeforeWrite() {
if (!$this->owner->ID && !$this->owner->SubsiteID) {
if (self::$default_root_folders_global) {
$this->owner->SubsiteID = 0;
} else {
$this->owner->SubsiteID = Subsite::currentSubsiteID();
}
}
}
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function onAfterUpload() {
// If we have a parent, use it's subsite as our subsite
if ($this->owner->Parent()) {
$this->owner->SubsiteID = $this->owner->Parent()->SubsiteID;
} else {
$this->owner->SubsiteID = Subsite::currentSubsiteID();
}
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$this->owner->write();
}
function canEdit() {
// Check the CMS_ACCESS_SecurityAdmin privileges on the subsite that owns this group
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$subsiteID = Session::get('SubsiteID');
if($subsiteID&&$subsiteID == $this->owner->SubsiteID) {
return true;
} else {
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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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}
/**
* Return a piece of text to keep DataObject cache keys appropriately specific
*/
function cacheKeyComponent() {
return 'subsite-'.Subsite::currentSubsiteID();
}
}