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MDL-11543 Temporary solution originally proposed by Martin
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nicolasconnault committed Oct 9, 2007
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345 changes: 345 additions & 0 deletions course/editcategory.php
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<?php // $Id$
/**
* Displays a category and all its sub-categories.
* In editing mode, allows admins to move/delete/hide categories
*/

require_once("../config.php");
require_once("lib.php");
require_once('editcategory_form.php');

$id = optional_param('id', 0, PARAM_INT); // Category id: if not given, show Add a Category form. If given and 'categoryupdate': show edit form
$page = optional_param('page', 0, PARAM_INT); // which page to show
$perpage = optional_param('perpage', $CFG->coursesperpage, PARAM_INT); // how many per page
$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);
$categoryedit = optional_param('categoryedit', -1, PARAM_BOOL); // Enables Move/Delete/Hide icons near each category in the list
$categoryadd = optional_param('categoryadd', 0, PARAM_BOOL); // Enables the Add Category form
$categoryupdate = optional_param('categoryupdate', 0, PARAM_BOOL); // Enables the Edit Category form
$resort = optional_param('resort', 0, PARAM_BOOL);

if (!$site = get_site()) {
error("Site isn't defined!");
}

if ($categoryadd) { // Show Add category form: if $id is given, it is used as the parent category
$context = get_context_instance(CONTEXT_SYSTEM);
$category = new stdClass();
$strtitle = get_string("addnewcategory");
$mform = new editcategory_form('editcategory.php', compact(array('category', 'id')));

if (($data = $mform->get_data()) && has_capability('moodle/category:create', $context)) {
$category->name = stripslashes_safe($data->name);
$category->description = $data->description;
$category->sortorder = 999;
$category->parent = $data->parent; // if $id = 0, the new category will be a top-level category

if (!empty($data->theme) && !empty($CFG->allowcategorythemes)) {
$category->theme = $data->theme;
theme_setup();
}

if (!$category->id = insert_record('course_categories', $category)) {
notify( "Could not insert the new category '$category->name' ");
} else {
$category->context = get_context_instance(CONTEXT_COURSECAT, $category->id);
mark_context_dirty($category->context->path);
redirect('index.php?categoryedit=on', get_string('categoryadded', null, $category->name));
}
}
}

// Prepare context if category id is given, or use System context if not
if ($id && !$categoryadd) {
$context = get_context_instance(CONTEXT_COURSECAT, $id);
if (!$category = get_record("course_categories", "id", $id)) {
error("Category not known!");
}
} elseif ($categoryadd) {
$context = get_context_instance(CONTEXT_SYSTEM);
$category = new stdClass();
} else {
error("You must provide either an id or the categoryadd switch");
}

// If id is given, but not categoryadd or categoryupdate, we show the category with its list of subcategories
if ($id && !$categoryadd && !$categoryupdate && false) {
/* TODO implement
if ($CFG->forcelogin) {
require_login();
}
// Determine whether to allow user to see this category
if (has_capability('moodle/course:create', $context)) {
if ($categoryedit !== -1) {
$USER->categoryediting = $categoryedit;
}
$navbaritem = update_category_button($category->id);
$creatorediting = !empty($USER->categoryediting);
$adminediting = (has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM, SITEID)) and $creatorediting);
} else {
if (!$category->visible) {
error(get_string('notavailable', 'error'));
}
$navbaritem = print_course_search("", true, "navbar");
$adminediting = false;
$creatorediting = false;
}
// Resort the category if requested
if ($resort and confirm_sesskey()) {
if ($courses = get_courses($id, "fullname ASC", 'c.id,c.fullname,c.sortorder')) {
// move it off the range
$count = get_record_sql('SELECT MAX(sortorder) AS max, 1
FROM ' . $CFG->prefix . 'course WHERE category=' . $category->id);
$count = $count->max + 100;
begin_sql();
foreach ($courses as $course) {
set_field('course', 'sortorder', $count, 'id', $course->id);
$count++;
}
commit_sql();
fix_course_sortorder($category->id);
}
}
// Print headings
$numcategories = count_records("course_categories");
$stradministration = get_string("administration");
$strcategories = get_string("categories");
$strcategory = get_string("category");
$strcourses = get_string("courses");
$navlinks = array();
$navlinks[] = array('name' => $strcategories, 'link' => 'index.php', 'type' => 'misc');
$navlinks[] = array('name' => $category->name, 'link' => null, 'type' => 'misc');
$navigation = build_navigation($navlinks);
if ($creatorediting) {
if ($adminediting) {
// modify this to treat this as an admin page
require_once($CFG->libdir.'/adminlib.php');
admin_externalpage_setup('categorymgmt');
admin_externalpage_print_header();
} else {
print_header("$site->shortname: $category->name", "$site->fullname: $strcategories", $navigation, "", "", true, $navbaritem);
}
} else {
print_header("$site->shortname: $category->name", "$site->fullname: $strcategories", $navigation, "", "", true, $navbaritem);
}
// Print button to turn editing off
if ($adminediting) {
echo '<div class="categoryediting button" align="right">'.update_category_button($category->id).'</div>';
}
// Print link to roles
if (has_capability('moodle/role:assign', $context)) {
echo '<div class="rolelink"><a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/roles/assign.php?contextid='.
$context->id.'">'.get_string('assignroles','role').'</a></div>';
}
// Print the category selector
$displaylist = array();
$parentlist = array();
make_categories_list($displaylist, $parentlist, "");
echo '<div class="categorypicker">';
popup_form('category.php?id=', $displaylist, 'switchcategory', $category->id, '', '', '', false, 'self', $strcategories.':');
echo '</div>';
// Print current category description
if ($category->description) {
print_box_start();
print_heading(get_string('description'));
echo $category->description;
print_box_end();
}
// Editing functions
if ($creatorediting) {
// Move a specified category to a new category
if (!empty($moveto) and $data = data_submitted() and confirm_sesskey()) { // Some courses are being moved
// user must have category update in both cats to perform this
require_capability('moodle/category:update', $context);
require_capability('moodle/category:update', get_context_instance(CONTEXT_COURSECAT, $moveto));
if (!$destcategory = get_record("course_categories", "id", $data->moveto)) {
error("Error finding the destination category");
}
// TODO function to move the category
}
// Hide or show a category
if ((!empty($hide) or !empty($show)) and confirm_sesskey()) {
require_capability('moodle/category:visibility', $context);
if (!empty($hide)) {
$category = get_record("course_categories", "id", $hide);
$visible = 0;
} else {
$category = get_record("course_categories", "id", $show);
$visible = 1;
}
if ($category) {
if (! set_field("course_categories", "visible", $visible, "id", $category->id)) {
notify("Could not update that category!");
}
}
}
// Move a category up or down
if ((!empty($moveup) or !empty($movedown)) and confirm_sesskey()) {
require_capability('moodle/category:update', $context);
$movecategory = NULL;
$swapcategory = NULL;
// TODO something like fix_course_sortorder() ?
// we are going to need to know the range
$max = get_record_sql('SELECT MAX(sortorder) AS max, 1 FROM ' . $CFG->prefix . 'course_categories WHERE id=' . $category->id);
$max = $max->max + 100;
if (!empty($moveup)) {
$movecategory = get_record('course_categories', 'id', $moveup);
$swapcategory = get_record('course_categories',
'category', $category->id,
'sortorder', $movecategory->sortorder - 1);
} else {
$movecategory = get_record('course_categories', 'id', $movedown);
$swapcategory = get_record('course_categories',
'category', $category->id,
'sortorder', $movecategory->sortorder + 1);
}
if ($swapcourse and $movecourse) { // Renumber everything for robustness
begin_sql();
if (!( set_field("course", "sortorder", $max, "id", $swapcourse->id)
&& set_field("course", "sortorder", $swapcourse->sortorder, "id", $movecourse->id)
&& set_field("course", "sortorder", $movecourse->sortorder, "id", $swapcourse->id)
)) {
notify("Could not update that course!");
}
commit_sql();
}
}
} // End of editing stuff
// Print out all the sub-categories
if ($subcategories = get_records("course_categories", "parent", $category->id, "sortorder ASC")) {
$firstentry = true;
foreach ($subcategories as $subcategory) {
if ($subcategory->visible or has_capability('moodle/course:create', $context)) {
$subcategorieswereshown = true;
if ($firstentry) {
echo '<table border="0" cellspacing="2" cellpadding="4" class="generalbox boxaligncenter">';
echo '<tr><th scope="col">'.get_string('subcategories').'</th></tr>';
echo '<tr><td style="white-space: nowrap">';
$firstentry = false;
}
$catlinkcss = $subcategory->visible ? "" : " class=\"dimmed\" ";
echo '<a '.$catlinkcss.' href="category.php?id='.$subcategory->id.'">'.
format_string($subcategory->name).'</a><br />';
}
}
if (!$firstentry) {
echo "</td></tr></table>";
echo "<br />";
}
}
// print option to add a subcategory
if (has_capability('moodle/category:create', $context) && $creatorediting) {
$cat->id = $id;
$mform->set_data($cat);
$mform->display();
}
*/
} elseif (!is_null($id) && !$categoryadd) { // Show Edit category form: $id is given as the identifier of the category being edited
$strtitle = get_string("editcategorysettings");
$mform = new editcategory_form('editcategory.php', compact(array('id', 'category')));
if (has_capability('moodle/category:update', $context)) {
if ($data = $mform->get_data()) {
$category->name = $data->name;
$category->description = $data->description;
$category->sortorder = 999;

if ($category->parent != $data->parent) {
$parent_cat = get_record('course_categories', 'id', $data->parent);
move_category($category, $parent_cat);
$category->parent = $data->parent;
}

if (!empty($data->theme) && !empty($CFG->allowcategorythemes)) {
$category->theme = $data->theme;
theme_setup();
}

if (!update_record('course_categories', $category)) {
notice( "Could not update the category '$category->name' ");
} else {
if ($category->parent == 0) {
$redirect_link = 'index.php?categoryedit=on';
} else {
$redirect_link = 'category.php?id='.$category->id.'&categoryedit=on';
}
fix_course_sortorder();
redirect($redirect_link, get_string('categoryupdated', null, $category->name));
}
}
} else {
notice("You do not have the permission to update this category.");
}
}

// Print the form

$site = get_site();

$straddnewcategory = get_string("addnewcategory");
$stradministration = get_string("administration");
$strcategories = get_string("categories");
$navlinks = array();

if (!empty($category->name)) {
$navlinks[] = array('name' => $strtitle,
'link' => null,
'type' => 'misc');
$title = $strtitle;
$fullname = $category->name;
} else {
$navlinks[] = array('name' => $stradministration,
'link' => "$CFG->wwwroot/$CFG->admin/index.php",
'type' => 'misc');
$navlinks[] = array('name' => $strcategories,
'link' => 'index.php',
'type' => 'misc');
$navlinks[] = array('name' => $straddnewcategory,
'link' => null,
'type' => 'misc');
$title = "$site->shortname: $straddnewcategory";
$fullname = $site->fullname;
}

$navigation = build_navigation($navlinks);
print_header($title, $fullname, $navigation, $mform->focus());
print_heading($strtitle);

$mform->display();

print_footer();
?>

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