mirror of
https://github.com/moodle/moodle.git
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230 lines
8.7 KiB
PHP
230 lines
8.7 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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* Displays the top level category or all courses
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*
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* @package core
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* @subpackage course
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* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
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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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require_once("../config.php");
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require_once($CFG->dirroot.'/course/lib.php');
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require_once($CFG->libdir.'/textlib.class.php');
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require_once($CFG->libdir. '/coursecatlib.php');
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$id = required_param('id', PARAM_INT); // Category id
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$page = optional_param('page', 0, PARAM_INT); // which page to show
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$perpage = optional_param('perpage', $CFG->coursesperpage, PARAM_INT); // how many per page
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if (empty($id)) {
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print_error("unknowcategory");
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}
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$PAGE->set_category_by_id($id);
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$PAGE->set_url(new moodle_url('/course/category.php', array('id' => $id)));
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// This is sure to be the category context
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$context = $PAGE->context;
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// And the object has been loaded for us no need for another DB call
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$category = $PAGE->category;
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if ($CFG->forcelogin) {
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require_login();
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}
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if (!$category->visible) {
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require_capability('moodle/category:viewhiddencategories', $context);
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}
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// Prepare the standard URL params for this page. We'll need them later.
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$urlparams = array('id' => $id);
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if ($page) {
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$urlparams['page'] = $page;
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}
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if ($perpage) {
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$urlparams['perpage'] = $perpage;
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}
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// Begin output
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$PAGE->set_pagelayout('coursecategory');
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$site = get_site();
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$PAGE->set_title("$site->shortname: $category->name");
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$PAGE->set_heading($site->fullname);
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$PAGE->set_button(print_course_search('', true, 'navbar'));
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echo $OUTPUT->header();
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/// Print the category selector
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$displaylist = coursecat::make_categories_list();
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echo '<div class="categorypicker">';
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$select = new single_select(new moodle_url('/course/category.php'), 'id', $displaylist, $category->id, null, 'switchcategory');
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$select->set_label(get_string('categories').':');
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echo $OUTPUT->render($select);
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echo '</div>';
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/// Print current category description
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echo $OUTPUT->box_start();
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$options = new stdClass;
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$options->noclean = true;
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$options->para = false;
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$options->overflowdiv = true;
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if (!isset($category->descriptionformat)) {
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$category->descriptionformat = FORMAT_MOODLE;
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}
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$text = file_rewrite_pluginfile_urls($category->description, 'pluginfile.php', $context->id, 'coursecat', 'description', null);
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echo format_text($text, $category->descriptionformat, $options);
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echo $OUTPUT->box_end();
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// Print out all the sub-categories
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// In order to view hidden subcategories the user must have the viewhiddencategories
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// capability in the current category.
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if (has_capability('moodle/category:viewhiddencategories', $context)) {
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$categorywhere = '';
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} else {
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$categorywhere = 'AND cc.visible = 1';
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}
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// We're going to preload the context for the subcategory as we know that we
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// need it later on for formatting.
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$ctxselect = context_helper::get_preload_record_columns_sql('ctx');
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$sql = "SELECT cc.*, $ctxselect
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FROM {course_categories} cc
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JOIN {context} ctx ON cc.id = ctx.instanceid
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WHERE cc.parent = :parentid AND
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ctx.contextlevel = :contextlevel
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$categorywhere
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ORDER BY cc.sortorder ASC";
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$subcategories = $DB->get_recordset_sql($sql, array('parentid' => $category->id, 'contextlevel' => CONTEXT_COURSECAT));
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// Prepare a table to display the sub categories.
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$table = new html_table;
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$table->attributes = array('border' => '0', 'cellspacing' => '2', 'cellpadding' => '4', 'class' => 'generalbox boxaligncenter category_subcategories');
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$table->head = array(new lang_string('subcategories'));
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$table->data = array();
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$baseurl = new moodle_url('/course/category.php');
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foreach ($subcategories as $subcategory) {
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// Preload the context we will need it to format the category name shortly.
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context_helper::preload_from_record($subcategory);
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$context = context_coursecat::instance($subcategory->id);
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// Prepare the things we need to create a link to the subcategory
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$attributes = $subcategory->visible ? array() : array('class' => 'dimmed');
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$text = format_string($subcategory->name, true, array('context' => $context));
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// Add the subcategory to the table
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$baseurl->param('id', $subcategory->id);
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$table->data[] = array(html_writer::link($baseurl, $text, $attributes));
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}
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$subcategorieswereshown = (count($table->data) > 0);
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if ($subcategorieswereshown) {
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echo html_writer::table($table);
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}
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// Print out all the courses.
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$courses = get_courses_page($category->id, 'c.sortorder ASC',
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'c.id,c.sortorder,c.shortname,c.fullname,c.summary,c.visible',
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$totalcount, $page*$perpage, $perpage);
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$numcourses = count($courses);
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// We can consider that we are using pagination when the total count of courses is different than the one returned.
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$pagingmode = $totalcount != $numcourses;
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if (!$courses) {
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// There is no course to display.
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if (empty($subcategorieswereshown)) {
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echo $OUTPUT->heading(get_string("nocoursesyet"));
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}
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} else if ($numcourses <= $CFG->courseswithsummarieslimit and !$pagingmode) {
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// We display courses with their summaries as we have not reached the limit, also we are not
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// in paging mode and not allowed to edit either.
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echo $OUTPUT->box_start('courseboxes');
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print_courses($category);
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echo $OUTPUT->box_end();
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} else {
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// The conditions above have failed, we display a basic list of courses with paging/editing options.
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echo $OUTPUT->paging_bar($totalcount, $page, $perpage, "/course/category.php?id=$category->id&perpage=$perpage");
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echo '<form id="movecourses" action="category.php" method="post"><div>';
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echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
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echo '<table border="0" cellspacing="2" cellpadding="4" class="generaltable boxaligncenter"><tr>';
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echo '<th class="header" scope="col">'.get_string('courses').'</th>';
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echo '<th class="header" scope="col"> </th>';
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echo '</tr>';
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$count = 0;
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// Checking if we are at the first or at the last page, to allow courses to
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// be moved up and down beyond the paging border
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if ($totalcount > $perpage) {
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$atfirstpage = ($page == 0);
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if ($perpage > 0) {
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$atlastpage = (($page + 1) == ceil($totalcount / $perpage));
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} else {
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$atlastpage = true;
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}
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} else {
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$atfirstpage = true;
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$atlastpage = true;
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}
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$baseurl = new moodle_url('/course/category.php', $urlparams + array('sesskey' => sesskey()));
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foreach ($courses as $acourse) {
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$coursecontext = context_course::instance($acourse->id);
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$count++;
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$up = ($count > 1 || !$atfirstpage);
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$down = ($count < $numcourses || !$atlastpage);
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$linkcss = $acourse->visible ? '' : ' class="dimmed" ';
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echo '<tr>';
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$coursename = get_course_display_name_for_list($acourse);
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echo '<td><a '.$linkcss.' href="view.php?id='.$acourse->id.'">'. format_string($coursename) .'</a></td>';
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echo '<td align="right">';
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// print enrol info
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if ($icons = enrol_get_course_info_icons($acourse)) {
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foreach ($icons as $pix_icon) {
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echo $OUTPUT->render($pix_icon);
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}
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}
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if (!empty($acourse->summary)) {
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$url = new moodle_url("/course/info.php?id=$acourse->id");
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echo $OUTPUT->action_link($url, '<img alt="'.get_string('info').'" class="icon" src="'.$OUTPUT->pix_url('i/info') . '" />',
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new popup_action('click', $url, 'courseinfo'), array('title'=>get_string('summary')));
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}
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echo "</td>";
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echo "</tr>";
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}
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echo '</table>';
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echo '</div></form>';
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echo '<br />';
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}
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echo '<div class="buttons">';
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if (has_capability('moodle/course:create', $context)) {
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// Print button to create a new course
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$url = new moodle_url('/course/edit.php', array('category' => $category->id, 'returnto' => 'category'));
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echo $OUTPUT->single_button($url, get_string('addnewcourse'), 'get');
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}
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if (!empty($CFG->enablecourserequests) && $category->id == $CFG->defaultrequestcategory) {
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print_course_request_buttons(context_system::instance());
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}
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echo '</div>';
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echo $OUTPUT->footer();
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