moodle/course/manage.php

758 lines
32 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Allows the admin to create, delete and rename course categories rearrange courses
*
* @package core
* @copyright 2013 Marina Glancy
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once("../config.php");
require_once($CFG->dirroot.'/course/lib.php');
require_once($CFG->libdir.'/coursecatlib.php');
// Category id.
$id = optional_param('categoryid', 0, PARAM_INT);
// Which page to show.
$page = optional_param('page', 0, PARAM_INT);
// How many per page.
$perpage = optional_param('perpage', $CFG->coursesperpage, PARAM_INT);
$search = optional_param('search', '', PARAM_RAW); // search words
$blocklist = optional_param('blocklist', 0, PARAM_INT);
$modulelist= optional_param('modulelist', '', PARAM_PLUGIN);
if (!$id && !empty($search)) {
$searchcriteria = array('search' => $search);
} else if (!$id && !empty($blocklist)) {
$searchcriteria = array('blocklist' => $blocklist);
} else if (!$id && !empty($modulelist)) {
$searchcriteria = array('modulelist' => $modulelist);
} else {
$searchcriteria = array();
}
// Actions to manage courses.
$hide = optional_param('hide', 0, PARAM_INT);
$show = optional_param('show', 0, PARAM_INT);
$moveup = optional_param('moveup', 0, PARAM_INT);
$movedown = optional_param('movedown', 0, PARAM_INT);
$moveto = optional_param('moveto', 0, PARAM_INT);
$resort = optional_param('resort', 0, PARAM_BOOL);
// Actions to manage categories.
$deletecat = optional_param('deletecat', 0, PARAM_INT);
$hidecat = optional_param('hidecat', 0, PARAM_INT);
$showcat = optional_param('showcat', 0, PARAM_INT);
$movecat = optional_param('movecat', 0, PARAM_INT);
$movetocat = optional_param('movetocat', -1, PARAM_INT);
$moveupcat = optional_param('moveupcat', 0, PARAM_INT);
$movedowncat = optional_param('movedowncat', 0, PARAM_INT);
require_login();
// Retrieve coursecat object
// This will also make sure that category is accessible and create default category if missing
$coursecat = coursecat::get($id);
if ($id) {
$PAGE->set_category_by_id($id);
$PAGE->set_url(new moodle_url('/course/manage.php', array('categoryid' => $id)));
// This is sure to be the category context.
$context = $PAGE->context;
if (!can_edit_in_category($coursecat->id)) {
redirect(new moodle_url('/course/index.php', array('categoryid' => $coursecat->id)));
}
} else {
$context = context_system::instance();
$PAGE->set_context($context);
$PAGE->set_url(new moodle_url('/course/manage.php'));
if (!can_edit_in_category()) {
redirect(new moodle_url('/course/index.php'));
}
}
$canmanage = has_capability('moodle/category:manage', $context);
// Process any category actions.
if (!empty($deletecat) and confirm_sesskey()) {
// Delete a category.
$cattodelete = coursecat::get($deletecat);
$context = context_coursecat::instance($deletecat);
require_capability('moodle/category:manage', $context);
require_capability('moodle/category:manage', get_category_or_system_context($cattodelete->parent));
$heading = get_string('deletecategory', 'moodle', format_string($cattodelete->name, true, array('context' => $context)));
require_once($CFG->dirroot.'/course/delete_category_form.php');
$mform = new delete_category_form(null, $cattodelete);
if ($mform->is_cancelled()) {
redirect(new moodle_url('/course/manage.php'));
}
// Start output.
echo $OUTPUT->header();
echo $OUTPUT->heading($heading);
if ($data = $mform->get_data()) {
// The form has been submit handle it.
if ($data->fulldelete == 1 && $cattodelete->can_delete_full()) {
$cattodeletename = $cattodelete->get_formatted_name();
$deletedcourses = $cattodelete->delete_full(true);
foreach ($deletedcourses as $course) {
echo $OUTPUT->notification(get_string('coursedeleted', '', $course->shortname), 'notifysuccess');
}
echo $OUTPUT->notification(get_string('coursecategorydeleted', '', $cattodeletename), 'notifysuccess');
echo $OUTPUT->continue_button(new moodle_url('/course/manage.php'));
} else if ($data->fulldelete == 0 && $cattodelete->can_move_content_to($data->newparent)) {
$cattodelete->delete_move($data->newparent, true);
echo $OUTPUT->continue_button(new moodle_url('/course/manage.php'));
} else {
// Some error in parameters (user is cheating?)
$mform->display();
}
} else {
// Display the form.
$mform->display();
}
// Finish output and exit.
echo $OUTPUT->footer();
exit();
}
if (!empty($movecat) and ($movetocat >= 0) and confirm_sesskey()) {
// Move a category to a new parent if required.
$cattomove = coursecat::get($movecat);
if ($cattomove->parent != $movetocat) {
if ($cattomove->can_change_parent($movetocat)) {
$cattomove->change_parent($movetocat);
} else {
print_error('cannotmovecategory');
}
}
}
// Hide or show a category.
if ($hidecat and confirm_sesskey()) {
$cattohide = coursecat::get($hidecat);
require_capability('moodle/category:manage', get_category_or_system_context($cattohide->parent));
$cattohide->hide();
} else if ($showcat and confirm_sesskey()) {
$cattoshow = coursecat::get($showcat);
require_capability('moodle/category:manage', get_category_or_system_context($cattoshow->parent));
$cattoshow->show();
}
if ((!empty($moveupcat) or !empty($movedowncat)) and confirm_sesskey()) {
// Move a category up or down.
fix_course_sortorder();
$swapcategory = null;
if (!empty($moveupcat)) {
require_capability('moodle/category:manage', context_coursecat::instance($moveupcat));
if ($movecategory = $DB->get_record('course_categories', array('id' => $moveupcat))) {
$params = array($movecategory->sortorder, $movecategory->parent);
if ($swapcategory = $DB->get_records_select('course_categories', "sortorder<? AND parent=?", $params, 'sortorder DESC', '*', 0, 1)) {
$swapcategory = reset($swapcategory);
}
}
} else {
require_capability('moodle/category:manage', context_coursecat::instance($movedowncat));
if ($movecategory = $DB->get_record('course_categories', array('id' => $movedowncat))) {
$params = array($movecategory->sortorder, $movecategory->parent);
if ($swapcategory = $DB->get_records_select('course_categories', "sortorder>? AND parent=?", $params, 'sortorder ASC', '*', 0, 1)) {
$swapcategory = reset($swapcategory);
}
}
}
if ($swapcategory and $movecategory) {
$DB->set_field('course_categories', 'sortorder', $swapcategory->sortorder, array('id' => $movecategory->id));
$DB->set_field('course_categories', 'sortorder', $movecategory->sortorder, array('id' => $swapcategory->id));
add_to_log(SITEID, "category", "move", "editcategory.php?id=$movecategory->id", $movecategory->id);
}
// Finally reorder courses.
fix_course_sortorder();
}
if ($coursecat->id && $canmanage && $resort && confirm_sesskey()) {
// Resort the category.
if ($courses = get_courses($coursecat->id, '', 'c.id,c.fullname,c.sortorder')) {
collatorlib::asort_objects_by_property($courses, 'fullname', collatorlib::SORT_NATURAL);
$i = 1;
foreach ($courses as $course) {
$DB->set_field('course', 'sortorder', $coursecat->sortorder + $i, array('id' => $course->id));
$i++;
}
// This should not be needed but we do it just to be safe.
fix_course_sortorder();
cache_helper::purge_by_event('changesincourse');
}
}
if (!empty($moveto) && ($data = data_submitted()) && confirm_sesskey()) {
// Move a specified course to a new category.
// User must have category update in both cats to perform this.
require_capability('moodle/category:manage', $context);
require_capability('moodle/category:manage', context_coursecat::instance($moveto));
if (!$destcategory = $DB->get_record('course_categories', array('id' => $data->moveto))) {
print_error('cannotfindcategory', '', '', $data->moveto);
}
$courses = array();
foreach ($data as $key => $value) {
if (preg_match('/^c\d+$/', $key)) {
$courseid = substr($key, 1);
array_push($courses, $courseid);
// Check this course's category.
if ($movingcourse = $DB->get_record('course', array('id' => $courseid))) {
if ($id && $movingcourse->category != $id ) {
print_error('coursedoesnotbelongtocategory');
}
} else {
print_error('cannotfindcourse');
}
}
}
move_courses($courses, $data->moveto);
}
if ((!empty($hide) or !empty($show)) && confirm_sesskey()) {
// Hide or show a course.
if (!empty($hide)) {
$course = $DB->get_record('course', array('id' => $hide), '*', MUST_EXIST);
$visible = 0;
} else {
$course = $DB->get_record('course', array('id' => $show), '*', MUST_EXIST);
$visible = 1;
}
$coursecontext = context_course::instance($course->id);
require_capability('moodle/course:visibility', $coursecontext);
// Set the visibility of the course. we set the old flag when user manually changes visibility of course.
$params = array('id' => $course->id, 'visible' => $visible, 'visibleold' => $visible, 'timemodified' => time());
$DB->update_record('course', $params);
cache_helper::purge_by_event('changesincourse');
add_to_log($course->id, "course", ($visible ? 'show' : 'hide'), "edit.php?id=$course->id", $course->id);
}
if ((!empty($moveup) or !empty($movedown)) && confirm_sesskey()) {
// Move a course up or down.
require_capability('moodle/category:manage', $context);
// Ensure the course order has continuous ordering.
fix_course_sortorder();
$swapcourse = null;
if (!empty($moveup)) {
if ($movecourse = $DB->get_record('course', array('id' => $moveup))) {
$swapcourse = $DB->get_record('course', array('sortorder' => $movecourse->sortorder - 1));
}
} else {
if ($movecourse = $DB->get_record('course', array('id' => $movedown))) {
$swapcourse = $DB->get_record('course', array('sortorder' => $movecourse->sortorder + 1));
}
}
if ($swapcourse and $movecourse) {
// Check course's category.
if ($movecourse->category != $id) {
print_error('coursedoesnotbelongtocategory');
}
$DB->set_field('course', 'sortorder', $swapcourse->sortorder, array('id' => $movecourse->id));
$DB->set_field('course', 'sortorder', $movecourse->sortorder, array('id' => $swapcourse->id));
cache_helper::purge_by_event('changesincourse');
add_to_log($movecourse->id, "course", "move", "edit.php?id=$movecourse->id", $movecourse->id);
}
}
// Prepare the standard URL params for this page. We'll need them later.
$urlparams = array('categoryid' => $id);
if ($page) {
$urlparams['page'] = $page;
}
if ($perpage) {
$urlparams['perpage'] = $perpage;
}
$urlparams += $searchcriteria;
$PAGE->set_pagelayout('coursecategory');
$courserenderer = $PAGE->get_renderer('core', 'course');
if (can_edit_in_category()) {
// Integrate into the admin tree only if the user can edit categories at the top level,
// otherwise the admin block does not appear to this user, and you get an error.
require_once($CFG->libdir . '/adminlib.php');
if ($id) {
navigation_node::override_active_url(new moodle_url('/course/index.php', array('categoryid' => $id)));
}
admin_externalpage_setup('coursemgmt', '', $urlparams, $CFG->wwwroot . '/course/manage.php');
$settingsnode = $PAGE->settingsnav->find_active_node();
if ($id && $settingsnode) {
$settingsnode->make_inactive();
$settingsnode->force_open();
$PAGE->navbar->add($settingsnode->text, $settingsnode->action);
}
} else {
$site = get_site();
$PAGE->set_title("$site->shortname: $coursecat->name");
$PAGE->set_heading($site->fullname);
$PAGE->set_button($courserenderer->course_search_form('', 'navbar'));
}
$displaylist[0] = get_string('top');
// Start output.
echo $OUTPUT->header();
if (!empty($searchcriteria)) {
echo $OUTPUT->heading(new lang_string('searchresults'));
} else if (!$coursecat->id) {
// Print out the categories with all the knobs.
$table = new html_table;
$table->id = 'coursecategories';
$table->attributes['class'] = 'admintable generaltable editcourse';
$table->head = array(
get_string('categories'),
get_string('courses'),
get_string('edit'),
get_string('movecategoryto'),
);
$table->colclasses = array(
'leftalign name',
'centeralign count',
'centeralign icons',
'leftalign actions'
);
$table->data = array();
print_category_edit($table, $coursecat);
echo html_writer::table($table);
} else {
// Print the category selector.
$select = new single_select(new moodle_url('/course/manage.php'), 'categoryid', $displaylist, $coursecat->id, null, 'switchcategory');
$select->set_label(get_string('categories').':');
echo html_writer::start_tag('div', array('class' => 'categorypicker'));
echo $OUTPUT->render($select);
echo html_writer::end_tag('div');
}
if ($canmanage && empty($searchcriteria)) {
echo $OUTPUT->container_start('buttons');
// Print button to update this category.
if ($id) {
$url = new moodle_url('/course/editcategory.php', array('id' => $id));
echo $OUTPUT->single_button($url, get_string('editcategorythis'), 'get');
}
// Print button for creating new categories.
$url = new moodle_url('/course/editcategory.php', array('parent' => $id));
if ($id) {
$title = get_string('addsubcategory');
} else {
$title = get_string('addnewcategory');
}
echo $OUTPUT->single_button($url, $title, 'get');
echo $OUTPUT->container_end();
}
if (!empty($searchcriteria)) {
$courses = coursecat::get(0)->search_courses($searchcriteria, array('recursive' => true,
'offset' => $page * $perpage, 'limit' => $perpage, 'sort' => array('fullname' => 1)));
$numcourses = count($courses);
$totalcount = coursecat::get(0)->search_courses_count($searchcriteria, array('recursive' => true));
} else if ($coursecat->id) {
// Print out all the sub-categories (plain mode).
// In order to view hidden subcategories the user must have the viewhiddencategories.
// capability in the current category..
if (has_capability('moodle/category:viewhiddencategories', $context)) {
$categorywhere = '';
} else {
$categorywhere = 'AND cc.visible = 1';
}
// We're going to preload the context for the subcategory as we know that we
// need it later on for formatting.
$ctxselect = context_helper::get_preload_record_columns_sql('ctx');
$sql = "SELECT cc.*, $ctxselect
FROM {course_categories} cc
JOIN {context} ctx ON cc.id = ctx.instanceid
WHERE cc.parent = :parentid AND
ctx.contextlevel = :contextlevel
$categorywhere
ORDER BY cc.sortorder ASC";
$subcategories = $DB->get_recordset_sql($sql, array('parentid' => $coursecat->id, 'contextlevel' => CONTEXT_COURSECAT));
// Prepare a table to display the sub categories.
$table = new html_table;
$table->attributes = array(
'border' => '0',
'cellspacing' => '2',
'cellpadding' => '4',
'class' => 'generalbox boxaligncenter category_subcategories'
);
$table->head = array(new lang_string('subcategories'));
$table->data = array();
$baseurl = new moodle_url('/course/manage.php');
foreach ($subcategories as $subcategory) {
// Preload the context we will need it to format the category name shortly.
context_helper::preload_from_record($subcategory);
$context = context_coursecat::instance($subcategory->id);
// Prepare the things we need to create a link to the subcategory.
$attributes = $subcategory->visible ? array() : array('class' => 'dimmed');
$text = format_string($subcategory->name, true, array('context' => $context));
// Add the subcategory to the table.
$baseurl->param('categoryid', $subcategory->id);
$table->data[] = array(html_writer::link($baseurl, $text, $attributes));
}
$subcategorieswereshown = (count($table->data) > 0);
if ($subcategorieswereshown) {
echo html_writer::table($table);
}
$courses = get_courses_page($coursecat->id, 'c.sortorder ASC',
'c.id,c.sortorder,c.shortname,c.fullname,c.summary,c.visible',
$totalcount, $page*$perpage, $perpage);
$numcourses = count($courses);
} else {
$subcategorieswereshown = true;
$courses = array();
$numcourses = $totalcount = 0;
}
if (!$courses) {
// There is no course to display.
if (empty($subcategorieswereshown)) {
echo $OUTPUT->heading(get_string("nocoursesyet"));
}
} else {
// Display a basic list of courses with paging/editing options.
$table = new html_table;
$table->attributes = array('border' => 0, 'cellspacing' => 0, 'cellpadding' => '4', 'class' => 'generalbox boxaligncenter');
$table->head = array(
get_string('courses'),
get_string('edit'),
get_string('select')
);
$table->colclasses = array(null, null, 'mdl-align');
if (!empty($searchcriteria)) {
// add 'Category' column
array_splice($table->head, 1, 0, array(get_string('category')));
array_splice($table->colclasses, 1, 0, array(null));
}
$table->data = array();
$count = 0;
$abletomovecourses = false;
// Checking if we are at the first or at the last page, to allow courses to
// be moved up and down beyond the paging border.
if ($totalcount > $perpage) {
$atfirstpage = ($page == 0);
if ($perpage > 0) {
$atlastpage = (($page + 1) == ceil($totalcount / $perpage));
} else {
$atlastpage = true;
}
} else {
$atfirstpage = true;
$atlastpage = true;
}
$baseurl = new moodle_url('/course/manage.php', $urlparams + array('sesskey' => sesskey()));
foreach ($courses as $acourse) {
$coursecontext = context_course::instance($acourse->id);
$count++;
$up = ($count > 1 || !$atfirstpage);
$down = ($count < $numcourses || !$atlastpage);
$courseurl = new moodle_url('/course/view.php', array('id' => $acourse->id));
$attributes = array();
$attributes['class'] = $acourse->visible ? '' : 'dimmed';
$coursename = get_course_display_name_for_list($acourse);
$coursename = format_string($coursename, true, array('context' => $coursecontext));
$coursename = html_writer::link($courseurl, $coursename, $attributes);
$icons = array();
// Update course icon.
if (has_capability('moodle/course:update', $coursecontext)) {
$url = new moodle_url('/course/edit.php', array('id' => $acourse->id, 'category' => $id, 'returnto' => 'catmanage'));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/edit', get_string('settings')));
}
// Role assignment icon.
if (has_capability('moodle/course:enrolreview', $coursecontext)) {
$url = new moodle_url('/enrol/users.php', array('id' => $acourse->id));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/enrolusers', get_string('enrolledusers', 'enrol')));
}
// Delete course icon.
if (can_delete_course($acourse->id)) {
$url = new moodle_url('/course/delete.php', array('id' => $acourse->id));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/delete', get_string('delete')));
}
// Change visibility.
// Users with no capability to view hidden courses, should not be able to lock themselves out.
if (has_any_capability(array('moodle/course:visibility', 'moodle/course:viewhiddencourses'), $coursecontext)) {
if (!empty($acourse->visible)) {
$url = new moodle_url($baseurl, array('hide' => $acourse->id));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/hide', get_string('hide')));
} else {
$url = new moodle_url($baseurl, array('show' => $acourse->id));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/show', get_string('show')));
}
}
// Backup course icon.
if (has_capability('moodle/backup:backupcourse', $coursecontext)) {
$url = new moodle_url('/backup/backup.php', array('id' => $acourse->id));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/backup', get_string('backup')));
}
// Restore course icon.
if (has_capability('moodle/restore:restorecourse', $coursecontext)) {
$url = new moodle_url('/backup/restorefile.php', array('contextid' => $coursecontext->id));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/restore', get_string('restore')));
}
if ($canmanage) {
if ($up && empty($searchcriteria)) {
$url = new moodle_url($baseurl, array('moveup' => $acourse->id));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/up', get_string('moveup')));
}
if ($down && empty($searchcriteria)) {
$url = new moodle_url($baseurl, array('movedown' => $acourse->id));
$icons[] = $OUTPUT->action_icon($url, new pix_icon('t/down', get_string('movedown')));
}
$abletomovecourses = true;
}
$table->data[] = new html_table_row(array(
new html_table_cell($coursename),
new html_table_cell(join('', $icons)),
new html_table_cell(html_writer::empty_tag('input', array('type' => 'checkbox', 'name' => 'c'.$acourse->id)))
));
if (!empty($searchcriteria)) {
// add 'Category' column
$category = coursecat::get($acourse->category, IGNORE_MISSING, true);
$cell = new html_table_cell($category->get_formatted_name());
$cell->attributes['class'] = $category->visible ? '' : 'dimmed_text';
array_splice($table->data[count($table->data) - 1]->cells, 1, 0, array($cell));
}
}
if ($abletomovecourses) {
$movetocategories = coursecat::make_categories_list('moodle/category:manage');
$movetocategories[$id] = get_string('moveselectedcoursesto');
$cell = new html_table_cell();
$cell->colspan = 3;
$cell->attributes['class'] = 'mdl-right';
$cell->text = html_writer::label(get_string('moveselectedcoursesto'), 'movetoid', false, array('class' => 'accesshide'));
$cell->text .= html_writer::select($movetocategories, 'moveto', $id, null, array('id' => 'movetoid', 'class' => 'autosubmit'));
$cell->text .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'categoryid', 'value' => $id));
$PAGE->requires->yui_module('moodle-core-formautosubmit',
'M.core.init_formautosubmit',
array(array('selectid' => 'movetoid', 'nothing' => $id))
);
$table->data[] = new html_table_row(array($cell));
}
$actionurl = new moodle_url('/course/manage.php');
$pagingurl = new moodle_url('/course/manage.php', array('categoryid' => $id, 'perpage' => $perpage) + $searchcriteria);
echo $OUTPUT->paging_bar($totalcount, $page, $perpage, $pagingurl);
echo html_writer::start_tag('form', array('id' => 'movecourses', 'action' => $actionurl, 'method' => 'post'));
echo html_writer::start_tag('div');
echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
foreach ($searchcriteria as $key => $value) {
echo html_writer::empty_tag('input', array('type' => 'hidden', 'name' => $key, 'value' => $value));
}
echo html_writer::table($table);
echo html_writer::end_tag('div');
echo html_writer::end_tag('form');
echo html_writer::empty_tag('br');
}
echo html_writer::start_tag('div', array('class' => 'buttons'));
if ($canmanage and $numcourses > 1 && empty($searchcriteria)) {
// Print button to re-sort courses by name.
$url = new moodle_url('/course/manage.php', array('categoryid' => $id, 'resort' => 'name', 'sesskey' => sesskey()));
echo $OUTPUT->single_button($url, get_string('resortcoursesbyname'), 'get');
}
if (has_capability('moodle/course:create', $context) && empty($searchcriteria)) {
// Print button to create a new course.
$url = new moodle_url('/course/edit.php');
if ($coursecat->id) {
$url->params(array('category' => $coursecat->id, 'returnto' => 'catmanage'));
} else {
$url->params(array('category' => $CFG->defaultrequestcategory, 'returnto' => 'topcatmanage'));
}
echo $OUTPUT->single_button($url, get_string('addnewcourse'), 'get');
}
if (!empty($CFG->enablecourserequests) && $id == $CFG->defaultrequestcategory) {
print_course_request_buttons(context_system::instance());
}
echo html_writer::end_tag('div');
echo $courserenderer->course_search_form();
echo $OUTPUT->footer();
/**
* Recursive function to print all the categories ready for editing.
*
* @param html_table $table The table to add data to.
* @param coursecat $category The category to render
* @param int $depth The depth of the category.
* @param bool $up True if this category can be moved up.
* @param bool $down True if this category can be moved down.
*/
function print_category_edit(html_table $table, coursecat $category, $depth = -1, $up = false, $down = false) {
global $OUTPUT;
static $str = null;
if (is_null($str)) {
$str = new stdClass;
$str->edit = new lang_string('edit');
$str->delete = new lang_string('delete');
$str->moveup = new lang_string('moveup');
$str->movedown = new lang_string('movedown');
$str->edit = new lang_string('editthiscategory');
$str->hide = new lang_string('hide');
$str->show = new lang_string('show');
$str->cohorts = new lang_string('cohorts', 'cohort');
$str->spacer = $OUTPUT->spacer().' ';
}
if ($category->id) {
$categorycontext = context_coursecat::instance($category->id);
$attributes = array();
$attributes['class'] = $category->visible ? '' : 'dimmed';
$attributes['title'] = $str->edit;
$categoryurl = new moodle_url('/course/manage.php', array('categoryid' => $category->id, 'sesskey' => sesskey()));
$categoryname = $category->get_formatted_name();
$categorypadding = str_repeat('&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;', $depth);
$categoryname = $categorypadding . html_writer::link($categoryurl, $categoryname, $attributes);
$icons = array();
if (has_capability('moodle/category:manage', $categorycontext)) {
// Edit category.
$icons[] = $OUTPUT->action_icon(
new moodle_url('/course/editcategory.php', array('id' => $category->id)),
new pix_icon('t/edit', $str->edit, 'moodle', array('class' => 'iconsmall')),
null, array('title' => $str->edit)
);
// Delete category.
$icons[] = $OUTPUT->action_icon(
new moodle_url('/course/manage.php', array('deletecat' => $category->id, 'sesskey' => sesskey())),
new pix_icon('t/delete', $str->delete, 'moodle', array('class' => 'iconsmall')),
null, array('title' => $str->delete)
);
// Change visibility.
if (!empty($category->visible)) {
$icons[] = $OUTPUT->action_icon(
new moodle_url('/course/manage.php', array('hidecat' => $category->id, 'sesskey' => sesskey())),
new pix_icon('t/hide', $str->hide, 'moodle', array('class' => 'iconsmall')),
null, array('title' => $str->hide)
);
} else {
$icons[] = $OUTPUT->action_icon(
new moodle_url('/course/manage.php', array('showcat' => $category->id, 'sesskey' => sesskey())),
new pix_icon('t/show', $str->show, 'moodle', array('class' => 'iconsmall')),
null, array('title' => $str->show)
);
}
// Cohorts.
if (has_any_capability(array('moodle/cohort:manage', 'moodle/cohort:view'), $categorycontext)) {
$icons[] = $OUTPUT->action_icon(
new moodle_url('/cohort/index.php', array('contextid' => $categorycontext->id)),
new pix_icon('t/cohort', $str->cohorts, 'moodle', array('class' => 'iconsmall')),
null, array('title' => $str->cohorts)
);
}
// Move up/down.
if ($up) {
$icons[] = $OUTPUT->action_icon(
new moodle_url('/course/manage.php', array('moveupcat' => $category->id, 'sesskey' => sesskey())),
new pix_icon('t/up', $str->moveup, 'moodle', array('class' => 'iconsmall')),
null, array('title' => $str->moveup)
);
} else {
$icons[] = $str->spacer;
}
if ($down) {
$icons[] = $OUTPUT->action_icon(
new moodle_url('/course/manage.php', array('movedowncat' => $category->id, 'sesskey' => sesskey())),
new pix_icon('t/down', $str->movedown, 'moodle', array('class' => 'iconsmall')),
null, array('title' => $str->movedown)
);
} else {
$icons[] = $str->spacer;
}
}
$actions = '';
if (has_capability('moodle/category:manage', $categorycontext)) {
$popupurl = new moodle_url('/course/manage.php', array('movecat' => $category->id, 'sesskey' => sesskey()));
$tempdisplaylist = array(0 => get_string('top')) + coursecat::make_categories_list('moodle/category:manage', $category->id);
$select = new single_select($popupurl, 'movetocat', $tempdisplaylist, $category->parent, null, "moveform$category->id");
$select->set_label(get_string('frontpagecategorynames'), array('class' => 'accesshide'));
$actions = $OUTPUT->render($select);
}
$table->data[] = new html_table_row(array(
// Category name.
new html_table_cell($categoryname),
// Course count.
new html_table_cell($category->coursecount),
// Icons.
new html_table_cell(join(' ', $icons)),
// Actions.
new html_table_cell($actions)
));
}
if ($categories = $category->get_children()) {
// Print all the children recursively.
$countcats = count($categories);
$count = 0;
$first = true;
$last = false;
foreach ($categories as $cat) {
$count++;
if ($count == $countcats) {
$last = true;
}
$up = $first ? false : true;
$down = $last ? false : true;
$first = false;
print_category_edit($table, $cat, $depth+1, $up, $down);
}
}
}