question/category.php

   1 <?php // $Id$
   2 /**
   3  * Allows a teacher to create, edit and delete categories
   4  *
   5  * @version $Id$
   6  * @author Martin Dougiamas and many others.
   7  *         {@link http://moodle.org}
   8  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   9  * @package question
  10  *//** */
  11
  12     require_once("../config.php");
  13     require_once("editlib.php");
  14     require_once("category_class.php");
  15
  16     // get values from form
  17     $param = new stdClass();
  18     $id = required_param('id',PARAM_INT);   // course id
  19     $param->moveup = optional_param('moveup',0,PARAM_INT);
  20     $param->movedown = optional_param('movedown',0,PARAM_INT);
  21     $param->hide = optional_param('hide',0,PARAM_INT);
  22     $param->delete = optional_param('delete',0,PARAM_INT);
  23     $param->confirm = optional_param('confirm',0,PARAM_INT);
  24     $param->cancel = optional_param('cancel','',PARAM_ALPHA);
  25     $param->move = optional_param('move',0,PARAM_INT);
  26     $param->moveto = optional_param('moveto',0,PARAM_INT);
  27     $param->publish = optional_param('publish',0,PARAM_INT);
  28     $param->addcategory = optional_param('addcategory','',PARAM_NOTAGS);
  29     $param->edit = optional_param('edit',0,PARAM_INT);
  30     $param->updateid = optional_param('updateid',0,PARAM_INT);
  31     $param->page = optional_param('page',1,PARAM_INT);
  32
  33     if (! $course = get_record("course", "id", $id)) {
  34         error("Course ID is incorrect");
  35     }
  36
  37     require_login($course->id, false);
  38
  39     if (!isteacheredit($course->id)) {
  40         error("Only teachers authorized to edit the course '{$course->fullname}' can use this page!");
  41     }
  42
  43     $qcobject = new question_category_object();
  44     $qcobject->set_course($course);
  45
  46     // Page header
  47     // TODO: generalise this to any activity
  48     if (isset($SESSION->modform->instance) and $quiz = get_record('quiz', 'id', $SESSION->modform->instance)) {
  49         $strupdatemodule = isteacheredit($course->id)
  50             ? update_module_button($SESSION->modform->cmid, $course->id, get_string('modulename', 'quiz'))
  51             : "";
  52         print_header_simple(get_string('editcategories', 'quiz'), '',
  53                  "<a href=\"$CFG->wwwroot/mod/quiz/index.php?id=$course->id\">".get_string('modulenameplural', 'quiz').'</a>'.
  54                  " -> <a href=\"$CFG->wwwroot/mod/quiz/view.php?q=$quiz->id\">".format_string($quiz->name).'</a>'.
  55                  ' -> '.get_string('editcategories', 'quiz'),
  56                  "", "", true, $strupdatemodule);
  57         $currenttab = 'edit';
  58         $mode = 'categories';
  59         include($CFG->dirroot.'/mod/quiz/tabs.php');
  60     } else {
  61         print_header_simple(get_string('editcategories', 'quiz'), '', get_string('editcategories', 'quiz'));
  62
  63         // print tabs
  64         $currenttab = 'categories';
  65         include('tabs.php');
  66     }
  67
  68     // Process actions.
  69     if (isset($_REQUEST['sesskey']) and confirm_sesskey()) { // sesskey must be ok
  70         if (!empty($param->delete) and empty($param->cancel)) {
  71             if (!empty($param->confirm)) {
  72                 /// 'confirm' is the category to move existing questions to
  73                 $qcobject->delete_category($param->delete, $param->confirm);
  74             } else {
  75                 $qcobject->delete_category($param->delete);
  76             }
  77         } else if (!empty($param->moveup)) {
  78             $qcobject->move_category_up_down('up', $param->moveup);
  79         } else if (!empty($param->movedown)) {
  80             $qcobject->move_category_up_down('down', $param->movedown);
  81         } else if (!empty($param->hide)) {
  82             $qcobject->publish_category(false, $param->hide);
  83         } else if (!empty($param->move)) {
  84             $qcobject->move_category($param->move, $param->moveto);
  85         } else if (!empty($param->publish)) {
  86             $qcobject->publish_category(true, $param->publish);
  87         } else if (!empty($param->addcategory)) {
  88             $param->newparent   = required_param('newparent',PARAM_INT);
  89             $param->newcategory = required_param('newcategory',PARAM_NOTAGS);
  90             $param->newinfo     = required_param('newinfo',PARAM_NOTAGS);
  91             $param->newpublish  = required_param('newpublish',PARAM_INT);
  92             $qcobject->add_category($param->newparent, $param->newcategory, $param->newinfo,
  93                 $param->newpublish, $course->id);
  94         } else if (!empty($param->edit)) {
  95             $qcobject->edit_single_category($param->edit, $param->page);
  96         } else if (!empty($param->updateid)) {
  97             $param->updateparent  = required_param('updateparent',PARAM_INT);
  98             $param->updatename    = required_param('updatename',PARAM_NOTAGS);
  99             $param->updateinfo    = required_param('updateinfo',PARAM_NOTAGS);
 100             $param->updatepublish = required_param('updatepublish',PARAM_INT);
 101             $qcobject->update_category($param->updateid, $param->updateparent, $param->updatename,
 102                 $param->updateinfo, $param->updatepublish, $course->id);
 103         }
 104     }
 105
 106     // display the user interface
 107     $qcobject->display_user_interface($param->page);
 108
 109     print_footer($course);
 110 ?>