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   1  <?php
   2  /**
   3   * Create grouping OR edit grouping settings.
   4   *
   5   * @copyright &copy; 2006 The Open University
   6   * @author N.D.Freear AT open.ac.uk
   7   * @author J.White AT open.ac.uk
   8   * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   9   * @package groups
  10   */
  11  require_once ('../config.php');
  12  require_once ('lib.php');
  13  require_once ('grouping_form.php');
  14  
  15  /// get url variables
  16  $courseid = optional_param('courseid', 0, PARAM_INT);
  17  $id       = optional_param('id', 0, PARAM_INT);
  18  $delete   = optional_param('delete', 0, PARAM_BOOL);
  19  $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  20  
  21  if ($id) {
  22      if (!$grouping = get_record('groupings', 'id', $id)) {
  23          error('Group ID was incorrect');
  24      }
  25      $grouping->description = clean_text($grouping->description);
  26      if (empty($courseid)) {
  27          $courseid = $grouping->courseid;
  28  
  29      } else if ($courseid != $grouping->courseid) {
  30          error('Course ID was incorrect');
  31      }
  32  
  33      if (!$course = get_record('course', 'id', $courseid)) {
  34          error('Course ID was incorrect');
  35      }
  36  
  37  } else {
  38      if (!$course = get_record('course', 'id', $courseid)) {
  39          error('Course ID was incorrect');
  40      }
  41      $grouping = new object();
  42      $grouping->courseid = $course->id;
  43  }
  44  
  45  require_login($course);
  46  $context = get_context_instance(CONTEXT_COURSE, $course->id);
  47  require_capability('moodle/course:managegroups', $context);
  48  
  49  $returnurl = $CFG->wwwroot.'/group/groupings.php?id='.$course->id;
  50  
  51  
  52  if ($id and $delete) {
  53      if (!$confirm) {
  54          print_header(get_string('deletegrouping', 'group'), get_string('deletegrouping', 'group'));
  55          $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  56          $optionsno  = array('id'=>$courseid);
  57          notice_yesno(get_string('deletegroupingconfirm', 'group', $grouping->name), 'grouping.php', 'groupings.php', $optionsyes, $optionsno, 'get', 'get');
  58          print_footer();
  59          die;
  60  
  61      } else if (confirm_sesskey()){
  62          if (groups_delete_grouping($id)) {
  63              redirect($returnurl);
  64          } else {
  65              print_error('erroreditgrouping', 'group', $returnurl);
  66          }
  67      }
  68  }
  69  
  70  /// First create the form
  71  $editform = new grouping_form();
  72  $editform->set_data($grouping);
  73  
  74  if ($editform->is_cancelled()) {
  75      redirect($returnurl);
  76  
  77  } elseif ($data = $editform->get_data()) {
  78      $success = true;
  79  
  80      if ($data->id) {
  81          if (!groups_update_grouping($data)) {
  82              error('Error updating grouping');
  83          }
  84  
  85      } else {
  86          if (!groups_create_grouping($data)) {
  87              error('Error creating grouping');
  88          }
  89      }
  90  
  91      redirect($returnurl);
  92  
  93  }
  94  
  95  $strgroupings     = get_string('groupings', 'group');
  96  $strparticipants = get_string('participants');
  97  
  98  if ($id) {
  99      $strheading = get_string('editgroupingsettings', 'group');
 100  } else {
 101      $strheading = get_string('creategrouping', 'group');
 102  }
 103  
 104  $navlinks = array(array('name'=>$strparticipants, 'link'=>$CFG->wwwroot.'/user/index.php?id='.$courseid, 'type'=>'misc'),
 105                    array('name'=>$strgroupings, 'link'=>$CFG->wwwroot.'/group/groupings.php?id='.$courseid, 'type'=>'misc'),
 106                    array('name'=>$strheading, 'link'=>'', 'type'=>'misc'));
 107  $navigation = build_navigation($navlinks);
 108  
 109  /// Print header
 110  print_header_simple($strgroupings, ': '.$strgroupings, $navigation, '', '', true, '', navmenu($course));
 111  
 112  
 113  print_heading($strheading);
 114  $editform->display();
 115  print_footer($course);
 116  
 117  ?>