mirror of
https://github.com/moodle/moodle.git
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120 lines
3.6 KiB
PHP
120 lines
3.6 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Utility class for browsing of system files.
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*
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* @package moodlecore
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* @subpackage file-browser
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* @copyright 2008 Petr Skoda (http://skodak.org)
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* Represents the system context in the tree navigated by @see{file_browser}.
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*/
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class file_info_system extends file_info {
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public function __construct($browser) {
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parent::__construct($browser, get_context_instance(CONTEXT_SYSTEM));
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}
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/**
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* Returns list of standard virtual file/directory identification.
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* The difference from stored_file parameters is that null values
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* are allowed in all fields
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* @return array with keys contextid, filearea, itemid, filepath and filename
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*/
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public function get_params() {
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return array('contextid'=>$this->context->id,
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'filearea' =>null,
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'itemid' =>null,
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'filepath' =>null,
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'filename' =>null);
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}
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/**
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* Returns localised visible name.
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* @return string
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*/
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public function get_visible_name() {
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return get_string('arearoot', 'repository');
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}
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/**
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* Can I add new files or directories?
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* @return bool
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*/
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public function is_writable() {
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return false;
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}
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/**
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* Is directory?
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* @return bool
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*/
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public function is_directory() {
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return true;
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}
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/**
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* Returns list of children.
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* @return array of file_info instances
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*/
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public function get_children() {
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global $DB, $USER;
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$children = array();
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if ($child = $this->browser->get_file_info(get_context_instance(CONTEXT_USER, $USER->id))) {
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$children[] = $child;
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}
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$course_cats = $DB->get_records('course_categories', array('parent'=>0), 'sortorder');
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foreach ($course_cats as $category) {
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$context = get_context_instance(CONTEXT_COURSECAT, $category->id);
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if (!$category->visible and !has_capability('moodle/course:viewhiddencourses', $context)) {
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continue;
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}
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if ($child = $this->browser->get_file_info($context)) {
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$children[] = $child;
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}
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}
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$courses = $DB->get_records('course', array('category'=>0), 'sortorder');
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foreach ($courses as $course) {
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if (!$course->visible and !has_capability('moodle/course:viewhiddencourses', $context)) {
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continue;
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}
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$context = get_context_instance(CONTEXT_COURSE, $course->id);
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if ($child = $this->browser->get_file_info($context)) {
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$children[] = $child;
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}
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}
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return $children;
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}
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/**
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* Returns parent file_info instance
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* @return file_info or null for root
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*/
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public function get_parent() {
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return null;
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}
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}
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