mirror of
https://github.com/moodle/moodle.git
synced 2025-01-18 14:03:52 +01:00
427 lines
16 KiB
PHP
427 lines
16 KiB
PHP
<?php // $Id$
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// For most people, just lists the course categories
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// Allows the admin to create, delete and rename course categories
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require_once("../config.php");
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require_once("lib.php");
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$categoryedit = optional_param('categoryedit', -1,PARAM_BOOL);
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$delete = optional_param('delete',0,PARAM_INT);
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$hide = optional_param('hide',0,PARAM_INT);
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$show = optional_param('show',0,PARAM_INT);
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$sure = optional_param('sure','',PARAM_ALPHANUM);
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$move = optional_param('move',0,PARAM_INT);
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$moveto = optional_param('moveto',-1,PARAM_INT);
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$moveup = optional_param('moveup',0,PARAM_INT);
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$movedown = optional_param('movedown',0,PARAM_INT);
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$context = get_context_instance(CONTEXT_SYSTEM, SITEID);
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if (!$site = get_site()) {
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error("Site isn't defined!");
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}
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if ($CFG->forcelogin) {
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require_login();
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}
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if (has_capability('moodle/category:update', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
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if ($categoryedit !== -1) {
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$USER->categoryediting = $categoryedit;
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}
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$adminediting = !empty($USER->categoryediting);
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} else {
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$adminediting = false;
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}
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/// Unless it's an editing admin, just print the regular listing of courses/categories
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if (!$adminediting) {
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$countcategories = count_records("course_categories");
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if ($countcategories > 1 || ($countcategories == 1 && count_records('course') > 200)) {
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$strcourses = get_string("courses");
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$strcategories = get_string("categories");
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print_header("$site->shortname: $strcategories", $strcourses,
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$strcategories, "", "", true, update_categories_button());
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print_heading($strcategories);
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print_simple_box_start("center", "50%", "#FFFFFF", 5, "categorybox");
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print_whole_category_list();
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print_simple_box_end();
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print_course_search();
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} else {
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$strfulllistofcourses = get_string("fulllistofcourses");
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print_header("$site->shortname: $strfulllistofcourses", $strfulllistofcourses, $strfulllistofcourses,
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'', '', true, update_categories_button());
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print_courses(0, "80%");
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}
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echo "<center>";
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/// I am not sure this context in the next has_capability call is correct.
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if (isloggedin() and !isguest() and !has_capability('moodle/course:create', get_context_instance(CONTEXT_SYSTEM, SITEID))) { // Print link to request a new course
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print_single_button("request.php", NULL, get_string("courserequest"), "get");
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}
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if (has_capability('moodle/course:create', get_context_instance(CONTEXT_SYSTEM, SITEID))) { // Print link to create a new course
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print_single_button("edit.php", NULL, get_string("addnewcourse"), "get");
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}
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if (has_capability('moodle/site:approvecourse', get_context_instance(CONTEXT_SYSTEM, SITEID)) and !empty($CFG->enablecourserequests)) {
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print_single_button('pending.php',NULL, get_string('coursespending'),"get");
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}
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echo "</center>";
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print_footer();
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exit;
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}
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/// From now on is all the admin functions
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require_once($CFG->libdir.'/adminlib.php');
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$adminroot = admin_get_root();
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admin_externalpage_setup('coursemgmt', $adminroot);
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/// Print headings
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$stradministration = get_string("administration");
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$strcategories = get_string("categories");
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$strcategory = get_string("category");
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$strcourses = get_string("courses");
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$stredit = get_string("edit");
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$strdelete = get_string("delete");
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$straction = get_string("action");
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$straddnewcategory = get_string("addnewcategory");
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admin_externalpage_print_header($adminroot);
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print_heading($strcategories);
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/// If data for a new category was submitted, then add it
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if ($form = data_submitted() and confirm_sesskey() and has_capability('moodle/category:create', $context)) {
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if (!empty($form->addcategory)) {
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unset($newcategory);
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$newcategory->name = $form->addcategory;
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$newcategory->sortorder = 999;
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if (!insert_record("course_categories", $newcategory)) {
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notify("Could not insert the new category '$newcategory->name'");
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} else {
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notify(get_string("categoryadded", "", $newcategory->name));
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}
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}
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}
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/// Delete a category if necessary
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if (!empty($delete) and confirm_sesskey()) {
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// context is coursecat, if not present admins should have it set in site level
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$context = get_context_instance(CONTEXT_COURSECAT, $delete);
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if ($deletecat = get_record("course_categories", "id", $delete) and has_capability('moodle/category:delete', $context)) {
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if (!empty($sure) && $sure == md5($deletecat->timemodified)) {
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/// Send the children categories to live with their grandparent
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if ($childcats = get_records("course_categories", "parent", $deletecat->id)) {
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foreach ($childcats as $childcat) {
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if (! set_field("course_categories", "parent", $deletecat->parent, "id", $childcat->id)) {
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error("Could not update a child category!", "index.php");
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}
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}
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}
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/// If the grandparent is a valid (non-zero) category, then
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/// send the children courses to live with their grandparent as well
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if ($deletecat->parent) {
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if ($childcourses = get_records("course", "category", $deletecat->id)) {
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foreach ($childcourses as $childcourse) {
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if (! set_field("course", "category", $deletecat->parent, "id", $childcourse->id)) {
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error("Could not update a child course!", "index.php");
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}
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}
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}
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}
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/// Finally delete the category itself
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if (delete_records("course_categories", "id", $deletecat->id)) {
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notify(get_string("categorydeleted", "", $deletecat->name));
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}
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}
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else {
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$strdeletecategorycheck = get_string("deletecategorycheck","",$deletecat->name);
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notice_yesno("$strdeletecategorycheck",
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"index.php?delete=$delete&sure=".md5($deletecat->timemodified)."&sesskey=$USER->sesskey",
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"index.php?sesskey=$USER->sesskey");
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admin_externalpage_print_footer($adminroot);
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exit();
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}
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}
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}
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/// Create a default category if necessary
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if (!$categories = get_categories()) { /// No category yet!
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// Try and make one
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unset($tempcat);
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$tempcat->name = get_string("miscellaneous");
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if (!$tempcat->id = insert_record("course_categories", $tempcat)) {
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error("Serious error: Could not create a default category!");
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}
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}
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/// Move a category to a new parent if required
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if (!empty($move) and ($moveto>=0) and confirm_sesskey()) {
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if ($tempcat = get_record("course_categories", "id", $move)) {
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if ($tempcat->parent != $moveto) {
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if (! set_field("course_categories", "parent", $moveto, "id", $tempcat->id)) {
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notify("Could not update that category!");
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}
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}
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}
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}
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/// Hide or show a category
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if ((!empty($hide) or !empty($show)) and confirm_sesskey()) {
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if (!empty($hide)) {
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$tempcat = get_record("course_categories", "id", $hide);
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$visible = 0;
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} else {
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$tempcat = get_record("course_categories", "id", $show);
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$visible = 1;
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}
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if ($tempcat) {
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if (! set_field("course_categories", "visible", $visible, "id", $tempcat->id)) {
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notify("Could not update that category!");
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}
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if (! set_field("course", "visible", $visible, "category", $tempcat->id)) {
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notify("Could not hide/show any courses in this category !");
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}
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}
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}
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/// Move a category up or down
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if ((!empty($moveup) or !empty($movedown)) and confirm_sesskey()) {
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$swapcategory = NULL;
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$movecategory = NULL;
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if (!empty($moveup)) {
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if ($movecategory = get_record("course_categories", "id", $moveup)) {
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$categories = get_categories("$movecategory->parent");
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foreach ($categories as $category) {
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if ($category->id == $movecategory->id) {
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break;
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}
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$swapcategory = $category;
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}
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}
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}
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if (!empty($movedown)) {
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if ($movecategory = get_record("course_categories", "id", $movedown)) {
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$categories = get_categories("$movecategory->parent");
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$choosenext = false;
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foreach ($categories as $category) {
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if ($choosenext) {
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$swapcategory = $category;
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break;
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}
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if ($category->id == $movecategory->id) {
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$choosenext = true;
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}
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}
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}
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}
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if ($swapcategory and $movecategory) { // Renumber everything for robustness
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$count=0;
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foreach ($categories as $category) {
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$count++;
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if ($category->id == $swapcategory->id) {
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$category = $movecategory;
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} else if ($category->id == $movecategory->id) {
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$category = $swapcategory;
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}
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if (! set_field("course_categories", "sortorder", $count, "id", $category->id)) {
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notify("Could not update that category!");
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}
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}
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}
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}
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/// Find the default category (the one with the lowest ID)
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$categories = get_categories();
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$default = 99999;
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foreach ($categories as $category) {
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if ($category->id < $default) {
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$default = $category->id;
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}
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}
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/// Find any orphan courses that don't yet have a valid category and set to default
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if ($courses = get_courses(NULL,NULL,'c.id, c.category, c.sortorder, c.visible')) {
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foreach ($courses as $course) {
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if ($course->category and !isset($categories[$course->category])) {
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set_field("course", "category", $default, "id", $course->id);
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}
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}
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}
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fix_course_sortorder();
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/// Print form for creating new categories
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if (has_capability('moodle/category:create', $context)) {
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echo "<center>";
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echo "<form id=\"addform\" action=\"index.php\" method=\"post\">";
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echo "<input type=\"text\" size=\"30\" alt=\"$straddnewcategory\" name=\"addcategory\" />";
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echo "<input type=\"submit\" value=\"$straddnewcategory\" />";
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echo "<input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
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echo "</form>";
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echo "</center>";
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echo "<br />";
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}
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/// Print out the categories with all the knobs
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$strcategories = get_string("categories");
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$strcourses = get_string("courses");
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$strmovecategoryto = get_string("movecategoryto");
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$stredit = get_string("edit");
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$displaylist = array();
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$parentlist = array();
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$displaylist[0] = get_string("top");
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make_categories_list($displaylist, $parentlist, "");
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echo "<table align=\"center\" border=\"0\" cellspacing=\"2\" cellpadding=\"5\" class=\"generalbox\"><tr>";
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echo "<th scope=\"col\">$strcategories</th>";
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echo "<th scope=\"col\">$strcourses</th>";
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echo "<th scope=\"col\">$stredit</th>";
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echo "<th scope=\"col\">$strmovecategoryto</th>";
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echo "</tr>";
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print_category_edit(NULL, $displaylist, $parentlist);
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echo "</table>";
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echo "<br />";
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/// Print link to create a new course
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echo "<center>";
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unset($options);
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$options["category"] = $category->id;
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if (has_capability('moodle/course:create', $context)) {
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print_single_button("edit.php", $options, get_string("addnewcourse"), "get");
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}
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print_single_button('pending.php',NULL, get_string('coursespending'),"get");
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echo "<br />";
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echo "</center>";
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admin_externalpage_print_footer($adminroot);
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function print_category_edit($category, $displaylist, $parentslist, $depth=-1, $up=false, $down=false) {
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/// Recursive function to print all the categories ready for editing
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global $CFG, $USER;
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static $str = '';
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if (empty($str)) {
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$str->delete = get_string("delete");
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$str->moveup = get_string("moveup");
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$str->movedown = get_string("movedown");
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$str->edit = get_string("editthiscategory");
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$str->hide = get_string("hide");
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$str->show = get_string("show");
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}
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if ($category) {
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$context = get_context_instance(CONTEXT_COURSECAT, $category->id);
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echo "<tr><td align=\"left\" nowrap=\"nowrap\">";
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for ($i=0; $i<$depth;$i++) {
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echo " ";
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}
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$linkcss = $category->visible ? "" : " class=\"dimmed\" ";
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echo "<a $linkcss title=\"$str->edit\" href=\"category.php?id=$category->id&categoryedit=on&sesskey=$USER->sesskey\">$category->name</a>";
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echo "</td>";
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echo "<td align=\"right\">$category->coursecount</td>";
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echo "<td nowrap=\"nowrap\">"; /// Print little icons
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if (has_capability('moodle/category:delete', $context)) {
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echo "<a title=\"$str->delete\" href=\"index.php?delete=$category->id&sesskey=$USER->sesskey\"><img".
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" src=\"$CFG->pixpath/t/delete.gif\" height=\"11\" width=\"11\" border=\"0\" alt=\"$str->delete\" /></a> ";
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}
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if (has_capability('moodle/category:visibility', $context)) {
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if (!empty($category->visible)) {
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echo "<a title=\"$str->hide\" href=\"index.php?hide=$category->id&sesskey=$USER->sesskey\"><img".
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" src=\"$CFG->pixpath/t/hide.gif\" height=\"11\" width=\"11\" border=\"0\" alt=\"$str->hide\" /></a> ";
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} else {
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echo "<a title=\"$str->show\" href=\"index.php?show=$category->id&sesskey=$USER->sesskey\"><img".
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" src=\"$CFG->pixpath/t/show.gif\" height=\"11\" width=\"11\" border=\"0\"alt=\"$str->show\" /></a> ";
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}
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}
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if ($up) {
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echo "<a title=\"$str->moveup\" href=\"index.php?moveup=$category->id&sesskey=$USER->sesskey\"><img".
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" src=\"$CFG->pixpath/t/up.gif\" height=\"11\" width=\"11\" border=\"0\" alt=\"$str->moveup\" /></a> ";
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}
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if ($down) {
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echo "<a title=\"$str->movedown\" href=\"index.php?movedown=$category->id&sesskey=$USER->sesskey\"><img".
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" src=\"$CFG->pixpath/t/down.gif\" height=\"11\" width=\"11\" border=\"0\" alt=\"$str->movedown\" /></a> ";
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}
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echo "</td>";
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echo "<td align=\"left\" width=\"0\">";
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$tempdisplaylist = $displaylist;
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unset($tempdisplaylist[$category->id]);
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foreach ($parentslist as $key => $parents) {
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if (in_array($category->id, $parents)) {
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unset($tempdisplaylist[$key]);
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}
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}
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popup_form ("index.php?move=$category->id&sesskey=$USER->sesskey&moveto=", $tempdisplaylist, "moveform$category->id", "$category->parent", "", "", "", false);
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echo "</td>";
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echo "</tr>";
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} else {
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$category->id = "0";
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}
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if ($categories = get_categories($category->id)) { // Print all the children recursively
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$countcats = count($categories);
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$count = 0;
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$first = true;
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$last = false;
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foreach ($categories as $cat) {
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$count++;
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if ($count == $countcats) {
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$last = true;
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}
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$up = $first ? false : true;
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$down = $last ? false : true;
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$first = false;
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print_category_edit($cat, $displaylist, $parentslist, $depth+1, $up, $down);
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}
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}
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}
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?>
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