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<?php
/**
* ExternPageCourseDownload.php - Class to provide a list of files from
* an institutes file system.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* @author Peter Thienel <thienel@data-quest.de>
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
* @since 5.4
*/
class ExternPageDownload extends ExternPage
{
public $institute;
public function __construct($config)
{
parent::__construct($config);
$this->institute = Institute::find($this->page_config->range_id);
}
/**
* @see ExternPage::getSortFields()
*/
public function getSortFields(): array
{
return [
'name' => _('Dateiname'),
'mkdate' => _('Datum'),
'size' => _('Dateigröße'),
'author' => _('Autor:in'),
'filetype' => _('Dateityp')
];
}
/**
* @see ExternPage::getDataFields()
*/
public function getDataFields(array $object_classes = []): array
{
return parent::getDataFields(
[
'user'
]
);
}
/**
* @see ExternPage::getConfigFields()
*/
public function getConfigFields($as_array = false)
{
$args = '
sort option,
language option,
folder optionArray,
subfolders int
';
return $as_array ? self::argsToArray($args) : $args;
}
/**
* @see ExternPage::getAllowedRequestParams()
*/
public function getAllowedRequestParams(bool $as_array = false)
{
$params = [
'language',
'sort',
'folder',
'subfolders',
];
return $as_array ? $params : implode(',', $params);
}
/**
* @see ExternPage::getMarkersContents()
*/
public function getMarkersContents(): array
{
return $this->getContent();
}
/**
* Returns all content of downloadable files to render the page template.
*
* @return array All content to render the template.
*/
protected function getContent(): array
{
$content = [];
$downloadable_file_refs = new SimpleCollection($this->getDownloadableFileRefs($this->page_config->range_id));
$downloadable_file_refs->orderBy($this->sort);
foreach ($downloadable_file_refs as $file_ref) {
$content_file = [
'ICON_URL' => Icon::create(
FileManager::getIconNameForMimeType($file_ref->mime_type)
)->asImagePath(),
'URL' => $file_ref->download_url,
'NAME' => $file_ref->name,
'DESCRIPTION' => $file_ref->description,
'UPLOAD_DATE' => $file_ref->mkdate,
'SIZE' => $file_ref->filesize > 1048576
? round($file_ref->filesize / 1048576, 1) . ' MB'
: round($file_ref->filesize / 1024, 1) . ' KB'
];
if ($file_ref->owner) {
$content_owner = [
'USERNAME' => $file_ref->owner->username,
'USERID' => $file_ref->owner->id,
'FULLNAME' => $file_ref->owner->getFullname(),
'FIRSTNAME' => $file_ref->owner->vorname,
'LASTNAME' => $file_ref->owner->nachname,
'TITLEFRONT' => $file_ref->owner->title_front,
'TITLEREAR' => $file_ref->owner->title_rear,
];
}
$content[] = array_merge(
$content_file,
$content_owner,
$this->getDatafieldMarkers($file_ref->owner));
}
return ['FILES' => $content];
}
/**
* Retrieves all file refs of downloadable files.
*
* @param string $institute_id The id of the institute.
* @return array Array with file refs.
*/
protected function getDownloadableFileRefs(string $institute_id): array
{
$downloadable_file_refs = [];
$top_folder = Folder::findTopFolder($institute_id);
$top_folder = $top_folder->getTypedFolder();
$files = $folders = [];
extract(FileManager::getFolderFilesRecursive($top_folder, 'nobody'));
foreach ($files as $file) {
$folder = $folders[$file->folder_id];
if ($folder->isFileDownloadable($file->id, 'nobody')) {
$downloadable_file_refs[] = $file;
}
}
return $downloadable_file_refs;
}
public function getFullGroupNames()
{
$groups = [];
foreach ($this->institute->status_groups as $status_group) {
$groups[$status_group->id] = $status_group->name;
$groups = array_merge($groups, $this->getGroupPaths($status_group));
}
return $groups;
}
/**
* @param $group
* @param string $seperator
* @param string $pre
* @return array
*/
public function getGroupPaths($group, $seperator = ' > ', $pre = ''): array
{
$name = $pre
? $pre . $seperator . $group->getName()
: $group->getName();
$result[$group->id] = $name;
if ($group->children) {
foreach ($group->children as $child) {
$result = array_merge($result, $this->getGroupPaths($child, $seperator, $name));
}
}
return $result;
}
/**
* Returns an array of paths from top folder to all folders below.
*
* @return array Array of concatenated folder names.
*/
public function get_concatenated_folders(): array
{
$top_folder = Folder::findTopFolder($this->page_config->range_id);
$top_folder = $top_folder->getTypedFolder();
$folders = FileManager::getReadableFolders($top_folder, 'nobody');
$folder_names = [];
$get_parent_folder_name = function ($folder, $folder_id) use (&$get_parent_folder_name, &$folders, &$folder_names) {
$folder_names[$folder_id][] = $folder->name;
if ($folder->parent_id) {
$get_parent_folder_name($folders[$folder->parent_id], $folder_id);
} else {
$folder_names[$folder_id] = implode(' > ', array_reverse($folder_names[$folder_id]));
}
};
array_walk($folders, $get_parent_folder_name);
return $folder_names;
}
}
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