course/editcategory.php

   1 <?php // $Id$
   2 /**
   3  * Page for creating or editing course category name/parent/description.
   4  * When called with an id parameter, edits the category with that id.
   5  * Otherwise it creates a new category with default parent from the parent
   6  * parameter, which may be 0.
   7  */
   8
   9 require_once('../config.php');
  10 require_once('lib.php');
  11 require_once('editcategory_form.php');
  12
  13 require_login();
  14
  15 $id = optional_param('id', 0, PARAM_INT);
  16 if ($id) {
  17     if (!$category = get_record('course_categories', 'id', $id)) {
  18         error("Category not known!");
  19     }
  20     require_capability('moodle/category:manage', get_context_instance(CONTEXT_COURSECAT, $id));
  21     $strtitle = get_string('editcategorysettings');
  22 } else {
  23     $parent = required_param('parent', PARAM_INT);
  24     if ($parent) {
  25         if (!record_exists('course_categories', 'id', $parent)) {
  26             error('Unknown parent category ' . $parent);
  27         }
  28         $context = get_context_instance(CONTEXT_COURSECAT, $parent);
  29     } else {
  30         $context = get_system_context();
  31     }
  32     $category = new stdClass();
  33     $category->id = 0;
  34     $category->parent = $parent;
  35     require_capability('moodle/category:manage', $context);
  36     $strtitle = get_string("addnewcategory");
  37 }
  38
  39 $mform = new editcategory_form('editcategory.php', $category);
  40 $mform->set_data($category);
  41
  42 if ($mform->is_cancelled()) {
  43     if ($id) {
  44         redirect($CFG->wwwroot . '/course/category.php?id=' . $id . '&categoryedit=on');
  45     } else if ($parent) {
  46         redirect($CFG->wwwroot .'/course/category.php?id=' . $parent . '&categoryedit=on');
  47     } else {
  48         redirect($CFG->wwwroot .'/course/index.php?categoryedit=on');
  49     }
  50 } else if ($data = $mform->get_data()) {
  51     $newcategory = new stdClass();
  52     $newcategory->name = $data->name;
  53     $newcategory->description = $data->description;
  54     $newcategory->parent = $data->parent; // if $data->parent = 0, the new category will be a top-level category
  55
  56     if (isset($data->theme) && !empty($CFG->allowcategorythemes)) {
  57         $newcategory->theme = $data->theme;
  58     }
  59
  60     if ($id) {
  61         // Update an existing category.
  62         $newcategory->id = $category->id;
  63         if ($newcategory->parent != $category->parent) {
  64             // check category manage capability if parent changed
  65             require_capability('moodle/category:manage', get_category_or_system_context((int)$newcategory->parent));
  66             $parent_cat = get_record('course_categories', 'id', $newcategory->parent);
  67             move_category($newcategory, $parent_cat);
  68         }
  69         if (!update_record('course_categories', $newcategory)) {
  70             error( "Could not update the category '$newcategory->name' ");
  71         }
  72         fix_course_sortorder();
  73
  74     } else {
  75         // Create a new category.
  76         $newcategory->sortorder = 999;
  77         if (!$newcategory->id = insert_record('course_categories', $newcategory)) {
  78             error("Could not insert the new category '$newcategory->name' ");
  79         }
  80         $newcategory->context = get_context_instance(CONTEXT_COURSECAT, $newcategory->id);
  81         mark_context_dirty($newcategory->context->path);
  82         fix_course_sortorder(); // Required to build course_categories.depth and .path.
  83     }
  84     redirect('category.php?id='.$newcategory->id.'&categoryedit=on');
  85 }
  86
  87 // Print the form
  88 $straddnewcategory = get_string('addnewcategory');
  89 $stradministration = get_string('administration');
  90 $strcategories = get_string('categories');
  91 $navlinks = array();
  92
  93 if ($id) {
  94     $navlinks[] = array('name' => $strtitle,
  95                         'link' => null,
  96                         'type' => 'misc');
  97     $title = $strtitle;
  98     $fullname = $category->name;
  99 } else {
 100     $navlinks[] = array('name' => $stradministration,
 101                         'link' => "$CFG->wwwroot/$CFG->admin/index.php",
 102                         'type' => 'misc');
 103     $navlinks[] = array('name' => $strcategories,
 104                         'link' => 'index.php',
 105                         'type' => 'misc');
 106     $navlinks[] = array('name' => $straddnewcategory,
 107                         'link' => null,
 108                         'type' => 'misc');
 109     $title = "$SITE->shortname: $straddnewcategory";
 110     $fullname = $SITE->fullname;
 111 }
 112
 113 $navigation = build_navigation($navlinks);
 114 print_header($title, $fullname, $navigation, $mform->focus());
 115 print_heading($strtitle);
 116
 117 $mform->display();
 118
 119 print_footer();
 120 ?>