mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
520 lines
15 KiB
PHP
520 lines
15 KiB
PHP
<?php
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/**
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* Represents a folder in the assets/ directory.
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* The folder path is stored in the "Filename" property.
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*
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* Updating the "Name" or "Filename" properties on
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* a folder object also updates all associated children
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* (both {@link File} and {@link Folder} records).
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*
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* Deleting a folder will also remove the folder from the filesystem,
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* including any subfolders and contained files. Use {@link deleteDatabaseOnly()}
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* to avoid touching the filesystem.
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*
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* See {@link File} documentation for more details about the
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* relationship between the database and filesystem in the SilverStripe file APIs.
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*
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* @package framework
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* @subpackage filesystem
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*/
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class Folder extends File {
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private static $singular_name = "Folder";
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private static $plural_name = "Folders";
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private static $default_sort = "\"Name\"";
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/**
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*
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*/
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public function populateDefaults() {
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parent::populateDefaults();
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if(!$this->Name) $this->Name = _t('AssetAdmin.NEWFOLDER',"NewFolder");
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}
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/**
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* Find the given folder or create it both as {@link Folder} database records
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* and on the filesystem. If necessary, creates parent folders as well. If it's
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* unable to find or make the folder, it will return null (as /assets is unable
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* to be represented by a Folder DataObject)
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*
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* @param $folderPath string Absolute or relative path to the file.
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* If path is relative, its interpreted relative to the "assets/" directory.
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* @return Folder|null
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*/
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public static function find_or_make($folderPath) {
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// Create assets directory, if it is missing
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if(!file_exists(ASSETS_PATH)) Filesystem::makeFolder(ASSETS_PATH);
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$folderPath = trim(Director::makeRelative($folderPath));
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// replace leading and trailing slashes
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$folderPath = preg_replace('/^\/?(.*)\/?$/', '$1', $folderPath);
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$parts = explode("/",$folderPath);
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$parentID = 0;
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$item = null;
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$filter = FileNameFilter::create();
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foreach($parts as $part) {
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if(!$part) continue; // happens for paths with a trailing slash
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// Ensure search includes folders with illegal characters removed, but
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// err in favour of matching existing folders if $folderPath
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// includes illegal characters itself.
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$partSafe = $filter->filter($part);
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$item = Folder::get()->filter(array(
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'ParentID' => $parentID,
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'Name' => array($partSafe, $part)
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))->first();
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if(!$item) {
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$item = new Folder();
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$item->ParentID = $parentID;
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$item->Name = $partSafe;
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$item->Title = $part;
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$item->write();
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}
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if(!file_exists($item->getFullPath())) {
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Filesystem::makeFolder($item->getFullPath());
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}
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$parentID = $item->ID;
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}
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return $item;
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}
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/**
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* Synchronize the file database with the actual content of the assets
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* folder.
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*/
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public function syncChildren() {
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$parentID = (int)$this->ID; // parentID = 0 on the singleton, used as the 'root node';
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$added = 0;
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$deleted = 0;
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$skipped = 0;
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// First, merge any children that are duplicates
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$duplicateChildrenNames = DB::prepared_query(
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'SELECT "Name" FROM "File" WHERE "ParentID" = ? GROUP BY "Name" HAVING count(*) > 1',
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array($parentID)
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)->column();
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if($duplicateChildrenNames) foreach($duplicateChildrenNames as $childName) {
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// Note, we do this in the database rather than object-model; otherwise we get all sorts of problems
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// about deleting files
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$children = DB::prepared_query(
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'SELECT "ID" FROM "File" WHERE "Name" = ? AND "ParentID" = ?',
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array($childName, $parentID)
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)->column();
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if($children) {
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$keptChild = array_shift($children);
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foreach($children as $removedChild) {
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DB::prepared_query('UPDATE "File" SET "ParentID" = ? WHERE "ParentID" = ?',
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array($keptChild, $removedChild));
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DB::prepared_query('DELETE FROM "File" WHERE "ID" = ?', array($removedChild));
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}
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} else {
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user_error("Inconsistent database issue: SELECT ID FROM \"File\" WHERE Name = '$childName'"
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. " AND ParentID = $parentID should have returned data", E_USER_WARNING);
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}
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}
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// Get index of database content
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// We don't use DataObject so that things like subsites doesn't muck with this.
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$dbChildren = DB::prepared_query('SELECT * FROM "File" WHERE "ParentID" = ?', array($parentID));
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$hasDbChild = array();
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if($dbChildren) {
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foreach($dbChildren as $dbChild) {
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$className = $dbChild['ClassName'];
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if(!$className) $className = "File";
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$hasDbChild[$dbChild['Name']] = new $className($dbChild);
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}
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}
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$unwantedDbChildren = $hasDbChild;
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// if we're syncing a folder with no ID, we assume we're syncing the root assets folder
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// however the Filename field is populated with "NewFolder", so we need to set this to empty
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// to satisfy the baseDir variable below, which is the root folder to scan for new files in
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if(!$parentID) $this->Filename = '';
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// Iterate through the actual children, correcting the database as necessary
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$baseDir = $this->FullPath;
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// @todo this shouldn't call die() but log instead
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if($parentID && !$this->Filename) die($this->ID . " - " . $this->FullPath);
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if(file_exists($baseDir)) {
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$actualChildren = scandir($baseDir);
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$ignoreRules = Filesystem::config()->sync_blacklisted_patterns;
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$allowedExtensions = File::config()->allowed_extensions;
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$checkExtensions = $this->config()->apply_restrictions_to_admin || !Permission::check('ADMIN');
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foreach($actualChildren as $actualChild) {
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$skip = false;
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// Check ignore patterns
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if($ignoreRules) foreach($ignoreRules as $rule) {
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if(preg_match($rule, $actualChild)) {
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$skip = true;
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break;
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}
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}
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// Check allowed extensions, unless admin users are allowed to bypass these exclusions
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if($checkExtensions
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&& !is_dir($baseDir . $actualChild)
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&& ($extension = self::get_file_extension($actualChild))
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&& !in_array(strtolower($extension), $allowedExtensions)
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) {
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$skip = true;
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}
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if($skip) {
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$skipped++;
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continue;
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}
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// A record with a bad class type doesn't deserve to exist. It must be purged!
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if(isset($hasDbChild[$actualChild])) {
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$child = $hasDbChild[$actualChild];
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if(( !( $child instanceof Folder ) && is_dir($baseDir . $actualChild) )
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|| (( $child instanceof Folder ) && !is_dir($baseDir . $actualChild)) ) {
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DB::prepared_query('DELETE FROM "File" WHERE "ID" = ?', array($child->ID));
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unset($hasDbChild[$actualChild]);
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}
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}
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if(isset($hasDbChild[$actualChild])) {
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$child = $hasDbChild[$actualChild];
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unset($unwantedDbChildren[$actualChild]);
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} else {
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$added++;
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$childID = $this->constructChild($actualChild);
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$child = DataObject::get_by_id("File", $childID);
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}
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if( $child && is_dir($baseDir . $actualChild)) {
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$childResult = $child->syncChildren();
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$added += $childResult['added'];
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$deleted += $childResult['deleted'];
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$skipped += $childResult['skipped'];
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}
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// Clean up the child record from memory after use. Important!
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$child->destroy();
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$child = null;
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}
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// Iterate through the unwanted children, removing them all
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if(isset($unwantedDbChildren)) foreach($unwantedDbChildren as $unwantedDbChild) {
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DB::prepared_query('DELETE FROM "File" WHERE "ID" = ?', array($unwantedDbChild->ID));
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$deleted++;
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}
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} else {
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DB::prepared_query('DELETE FROM "File" WHERE "ID" = ?', array($this->ID));
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}
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return array(
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'added' => $added,
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'deleted' => $deleted,
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'skipped' => $skipped
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);
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}
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/**
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* Construct a child of this Folder with the given name.
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* It does this without actually using the object model, as this starts messing
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* with all the data. Rather, it does a direct database insert.
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*
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* @param string $name Name of the file or folder
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* @return integer the ID of the newly saved File record
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*/
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public function constructChild($name) {
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// Determine the class name - File, Folder or Image
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$baseDir = $this->FullPath;
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if(is_dir($baseDir . $name)) {
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$className = "Folder";
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} else {
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$className = File::get_class_for_file_extension(pathinfo($name, PATHINFO_EXTENSION));
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}
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$ownerID = Member::currentUserID();
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$filename = $this->Filename . $name;
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if($className == 'Folder' ) $filename .= '/';
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$nowExpression = DB::get_conn()->now();
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DB::prepared_query("INSERT INTO \"File\"
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(\"ClassName\", \"ParentID\", \"OwnerID\", \"Name\", \"Filename\", \"Created\", \"LastEdited\", \"Title\")
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VALUES (?, ?, ?, ?, ?, $nowExpression, $nowExpression, ?)",
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array($className, $this->ID, $ownerID, $name, $filename, $name)
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);
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return DB::get_generated_id("File");
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}
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/**
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* Take a file uploaded via a POST form, and save it inside this folder.
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* File names are filtered through {@link FileNameFilter}, see class documentation
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* on how to influence this behaviour.
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*/
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public function addUploadToFolder($tmpFile) {
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if(!is_array($tmpFile)) {
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user_error("Folder::addUploadToFolder() Not passed an array."
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. " Most likely, the form hasn't got the right enctype", E_USER_ERROR);
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}
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if(!isset($tmpFile['size'])) {
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return;
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}
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$base = BASE_PATH;
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// $parentFolder = Folder::findOrMake("Uploads");
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// Generate default filename
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$nameFilter = FileNameFilter::create();
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$file = $nameFilter->filter($tmpFile['name']);
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while($file[0] == '_' || $file[0] == '.') {
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$file = substr($file, 1);
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}
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$file = $this->RelativePath . $file;
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Filesystem::makeFolder(dirname("$base/$file"));
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$doubleBarrelledExts = array('.gz', '.bz', '.bz2');
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$ext = "";
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if(preg_match('/^(.*)(\.[^.]+)$/', $file, $matches)) {
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$file = $matches[1];
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$ext = $matches[2];
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// Special case for double-barrelled
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if(in_array($ext, $doubleBarrelledExts) && preg_match('/^(.*)(\.[^.]+)$/', $file, $matches)) {
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$file = $matches[1];
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$ext = $matches[2] . $ext;
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}
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}
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$origFile = $file;
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$i = 1;
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while(file_exists("$base/$file$ext")) {
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$i++;
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$oldFile = $file;
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if(strpos($file, '.') !== false) {
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$file = preg_replace('/[0-9]*(\.[^.]+$)/', $i . '\\1', $file);
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} elseif(strpos($file, '_') !== false) {
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$file = preg_replace('/_([^_]+$)/', '_' . $i, $file);
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} else {
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$file .= '_'.$i;
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}
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if($oldFile == $file && $i > 2) user_error("Couldn't fix $file$ext with $i", E_USER_ERROR);
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}
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if (move_uploaded_file($tmpFile['tmp_name'], "$base/$file$ext")) {
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// Update with the new image
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return $this->constructChild(basename($file . $ext));
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} else {
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if(!file_exists($tmpFile['tmp_name'])) {
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user_error("Folder::addUploadToFolder: '$tmpFile[tmp_name]' doesn't exist", E_USER_ERROR);
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} else {
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user_error("Folder::addUploadToFolder: Couldn't copy '$tmpFile[tmp_name]' to '$base/$file$ext'",
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E_USER_ERROR);
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}
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return false;
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}
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}
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protected function validate() {
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return new ValidationResult(true);
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}
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//-------------------------------------------------------------------------------------------------
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// Data Model Definition
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public function getRelativePath() {
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return parent::getRelativePath() . "/";
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}
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public function onBeforeDelete() {
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if($this->ID && ($children = $this->AllChildren())) {
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foreach($children as $child) {
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if(!$this->Filename || !$this->Name || !file_exists($this->getFullPath())) {
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$child->setField('Name',null);
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$child->Filename = null;
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}
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$child->delete();
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}
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}
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// Do this after so a folder's contents are removed before we delete the folder.
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if($this->Filename && $this->Name && file_exists($this->getFullPath())) {
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$files = glob( $this->getFullPath() . '/*' );
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if( !$files || ( count( $files ) == 1 && preg_match( '/\/_resampled$/', $files[0] ) ) )
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Filesystem::removeFolder( $this->getFullPath() );
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}
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parent::onBeforeDelete();
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}
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/**
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* Return the relative URL of an icon for this file type
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*
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* @return String
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*/
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public function Icon() {
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return FRAMEWORK_DIR . "/images/app_icons/folder_32.png";
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}
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/** Override setting the Title of Folders to that Name, Filename and Title are always in sync.
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* Note that this is not appropriate for files, because someone might want to create a human-readable name
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* of a file that is different from its name on disk. But folders should always match their name on disk. */
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public function setTitle($title) {
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$this->setName($title);
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}
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public function getTitle() {
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return $this->Name;
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}
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public function setName($name) {
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parent::setName($name);
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$this->setField('Title', $this->Name);
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}
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public function setFilename($filename) {
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$this->setField('Title',pathinfo($filename, PATHINFO_BASENAME));
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parent::setFilename($filename);
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}
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/**
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* A folder doesn't have a (meaningful) file size.
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*
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* @return Null
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*/
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public function getSize() {
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return null;
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}
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/**
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* Delete the database record (recursively for folders) without touching the filesystem
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*/
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public function deleteDatabaseOnly() {
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if($children = $this->myChildren()) {
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foreach($children as $child) $child->deleteDatabaseOnly();
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}
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parent::deleteDatabaseOnly();
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}
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/**
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* Returns all children of this folder
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*
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* @return DataList
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*/
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public function myChildren() {
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return File::get()->filter("ParentID", $this->ID);
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}
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/**
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* Returns true if this folder has children
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*
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* @return bool
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*/
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public function hasChildren() {
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return $this->myChildren()->exists();
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}
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/**
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* Returns true if this folder has children
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*
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* @return bool
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*/
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public function hasChildFolders() {
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return $this->ChildFolders()->exists();
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}
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/**
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* Overloaded to call recursively on all contained {@link File} records.
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*/
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public function updateFilesystem() {
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parent::updateFilesystem();
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// Note: Folders will have been renamed on the filesystem already at this point,
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// File->updateFilesystem() needs to take this into account.
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if($this->ID && ($children = $this->AllChildren())) {
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foreach($children as $child) {
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$child->updateFilesystem();
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$child->write();
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}
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}
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}
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/**
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* Return the FieldList used to edit this folder in the CMS.
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* You can modify this FieldList by subclassing folder, or by creating a {@link DataExtension}
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* and implemeting updateCMSFields(FieldList $fields) on that extension.
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*/
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public function getCMSFields() {
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// Hide field on root level, which can't be renamed
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if(!$this->ID || $this->ID === "root") {
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$titleField = new HiddenField("Name");
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} else {
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$titleField = new TextField("Name", $this->fieldLabel('Name'));
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}
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$fields = new FieldList(
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$titleField,
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new HiddenField('ParentID')
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);
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$this->extend('updateCMSFields', $fields);
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return $fields;
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}
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/**
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* Get the children of this folder that are also folders.
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*
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* @return DataList
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*/
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public function ChildFolders() {
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return Folder::get()->filter('ParentID', $this->ID);
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}
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/**
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* Get the number of children of this folder that are also folders.
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*/
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public function numChildFolders() {
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return $this->ChildFolders()->count();
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}
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/**
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* @return String
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*/
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public function CMSTreeClasses() {
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$classes = sprintf('class-%s', $this->class);
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if(!$this->canDelete())
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$classes .= " nodelete";
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if(!$this->canEdit())
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$classes .= " disabled";
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$classes .= $this->markingClasses('numChildFolders');
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return $classes;
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}
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/**
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* @return string
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*/
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public function getTreeTitle() {
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return $treeTitle = sprintf(
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"<span class=\"jstree-foldericon\"></span><span class=\"item\">%s</span>",
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Convert::raw2xml(str_replace(array("\n","\r"),"",$this->Title))
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);
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}
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}
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