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   1  <?php
   2  /**
   3   * Create group OR edit group 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  
  12  require_once ('../config.php');
  13  require_once ('lib.php');
  14  require_once ('group_form.php');
  15  
  16  /// get url variables
  17  $courseid = optional_param('courseid', 0, PARAM_INT);
  18  $id       = optional_param('id', 0, PARAM_INT);
  19  $delete   = optional_param('delete', 0, PARAM_BOOL);
  20  $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  21  
  22  if ($id) {
  23      if (!$group = get_record('groups', 'id', $id)) {
  24          error('Group ID was incorrect');
  25      }
  26      $group->description = clean_text($group->description);
  27      if (empty($courseid)) {
  28          $courseid = $group->courseid;
  29  
  30      } else if ($courseid != $group->courseid) {
  31          error('Course ID was incorrect');
  32      }
  33  
  34      if (!$course = get_record('course', 'id', $courseid)) {
  35          error('Course ID was incorrect');
  36      }
  37  
  38  } else {
  39      if (!$course = get_record('course', 'id', $courseid)) {
  40          error('Course ID was incorrect');
  41      }
  42      $group = new object();
  43      $group->courseid = $course->id;
  44  }
  45  
  46  require_login($course);
  47  $context = get_context_instance(CONTEXT_COURSE, $course->id);
  48  require_capability('moodle/course:managegroups', $context);
  49  
  50  $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&amp;group='.$id;
  51  
  52  if ($id and $delete) {
  53      if (!$confirm) {
  54          print_header(get_string('deleteselectedgroup', 'group'), get_string('deleteselectedgroup', 'group'));
  55          $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  56          $optionsno  = array('id'=>$courseid);
  57          notice_yesno(get_string('deletegroupconfirm', 'group', $group->name), 'group.php', 'index.php', $optionsyes, $optionsno, 'get', 'get');
  58          print_footer();
  59          die;
  60  
  61      } else if (confirm_sesskey()){
  62          if (groups_delete_group($id)) {
  63              redirect('index.php?id='.$course->id);
  64          } else {
  65              print_error('erroreditgroup', 'group', $returnurl);
  66          }
  67      }
  68  }
  69  
  70  /// First create the form
  71  $editform = new group_form();
  72  $editform->set_data($group);
  73  
  74  if ($editform->is_cancelled()) {
  75      redirect($returnurl);
  76  
  77  } elseif ($data = $editform->get_data()) {
  78  
  79      if ($data->id) {
  80          if (!groups_update_group($data, $editform->_upload_manager)) {
  81              error('Error updating group');
  82          }
  83      } else {
  84          if (!$id = groups_create_group($data, $editform->_upload_manager)) {
  85              error('Error creating group');
  86          }
  87          $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&amp;group='.$id;
  88      }
  89  
  90      redirect($returnurl);
  91  }
  92  
  93  $strgroups = get_string('groups');
  94  $strparticipants = get_string('participants');
  95  
  96  if ($id) {
  97      $strheading = get_string('editgroupsettings', 'group');
  98  } else {
  99      $strheading = get_string('creategroup', 'group');
 100  }
 101  
 102  
 103  $navlinks = array(array('name'=>$strparticipants, 'link'=>$CFG->wwwroot.'/user/index.php?id='.$courseid, 'type'=>'misc'),
 104                    array('name'=>$strgroups, 'link'=>$CFG->wwwroot.'/group/index.php?id='.$courseid, 'type'=>'misc'),
 105                    array('name'=>$strheading, 'link'=>'', 'type'=>'misc'));
 106  $navigation = build_navigation($navlinks);
 107  
 108  /// Print header
 109  print_header_simple($strgroups, ': '.$strgroups, $navigation, '', '', true, '', navmenu($course));
 110  
 111  echo '<div id="grouppicture">';
 112  if ($id) {
 113      print_group_picture($group, $course->id);
 114  }
 115  echo '</div>';
 116  $editform->display();
 117  print_footer($course);
 118  ?>