group/assign.php

   1 <?php
   2 /**
   3  * Add/remove group from grouping.
   4  * @package groups
   5  */
   6 require_once('../config.php');
   7 require_once('lib.php');
   8
   9 $groupingid = required_param('id', PARAM_INT);
  10
  11 if (!$grouping = get_record('groupings', 'id', $groupingid)) {
  12     error('Incorrect group id');
  13 }
  14
  15 if (! $course = get_record('course', 'id', $grouping->courseid)) {
  16     print_error('invalidcourse');
  17 }
  18 $courseid = $course->id;
  19
  20 require_login($course);
  21 $context = get_context_instance(CONTEXT_COURSE, $courseid);
  22 require_capability('moodle/course:managegroups', $context);
  23
  24 $returnurl = $CFG->wwwroot.'/group/groupings.php?id='.$courseid;
  25
  26
  27 if ($frm = data_submitted() and confirm_sesskey()) {
  28
  29     if (isset($frm->cancel)) {
  30         redirect($returnurl);
  31
  32     } else if (isset($frm->add) and !empty($frm->addselect)) {
  33         foreach ($frm->addselect as $groupid) {
  34             $groupid = (int)$groupid;
  35             if (record_exists('groupings_groups', 'groupingid', $grouping->id, 'groupid', $groupid)) {
  36                 continue;
  37             }
  38             $assign = new object();
  39             $assign->groupingid = $grouping->id;
  40             $assign->groupid = $groupid;
  41             $assign->timeadded = time();
  42             insert_record('groupings_groups', $assign);
  43         }
  44
  45     } else if (isset($frm->remove) and !empty($frm->removeselect)) {
  46
  47         foreach ($frm->removeselect as $groupid) {
  48             $groupid = (int)$groupid;
  49             delete_records('groupings_groups', 'groupingid', $grouping->id, 'groupid', $groupid);
  50         }
  51     }
  52 }
  53
  54
  55 $currentmembers = array();
  56 $potentialmembers  = array();
  57
  58 if ($groups = get_records('groups', 'courseid', $courseid, 'name')) {
  59     if ($assignment = get_records('groupings_groups', 'groupingid', $grouping->id)) {
  60         foreach ($assignment as $ass) {
  61             $currentmembers[$ass->groupid] = $groups[$ass->groupid];
  62             unset($groups[$ass->groupid]);
  63         }
  64     }
  65     $potentialmembers = $groups;
  66 }
  67
  68 $currentmembersoptions = '';
  69 $currentmemberscount = 0;
  70 if ($currentmembers) {
  71     foreach($currentmembers as $group) {
  72         $currentmembersoptions .= '<option value="'.$group->id.'.">'.format_string($group->name).'</option>';
  73         $currentmemberscount ++;
  74     }
  75 } else {
  76     $currentmembersoptions .= '<option>&nbsp;</option>';
  77 }
  78
  79 $potentialmembersoptions = '';
  80 $potentialmemberscount = 0;
  81 if ($potentialmembers) {
  82     foreach($potentialmembers as $group) {
  83         $potentialmembersoptions .= '<option value="'.$group->id.'.">'.format_string($group->name).'</option>';
  84         $potentialmemberscount ++;
  85     }
  86 } else {
  87     $potentialmembersoptions .= '<option>&nbsp;</option>';
  88 }
  89
  90 // Print the page and form
  91 $strgroups = get_string('groups');
  92 $strparticipants = get_string('participants');
  93 $straddgroupstogroupings = get_string('addgroupstogroupings', 'group');
  94
  95 $groupingname = format_string($grouping->name);
  96
  97 $navlinks = array();
  98 $navlinks[] = array('name' => $strparticipants, 'link' => "$CFG->wwwroot/user/index.php?id=$courseid", 'type' => 'misc');
  99 $navlinks[] = array('name' => $strgroups, 'link' => "$CFG->wwwroot/group/index.php?id=$courseid", 'type' => 'misc');
 100 $navlinks[] = array('name' => $straddgroupstogroupings, 'link' => null, 'type' => 'misc');
 101 $navigation = build_navigation($navlinks);
 102
 103 print_header("$course->shortname: $strgroups", $course->fullname, $navigation, '', '', true, '', user_login_string($course, $USER));
 104
 105 ?>
 106 <div id="addmembersform">
 107     <h3 class="main"><?php print_string('addgroupstogroupings', 'group'); echo ": $groupingname"; ?></h3>
 108
 109     <form id="assignform" method="post" action="">
 110     <div>
 111     <input type="hidden" name="sesskey" value="<?php p(sesskey()); ?>" />
 112     <input type="hidden" name="group" value="<?php echo $groupid; ?>" />
 113
 114     <table summary="" cellpadding="5" cellspacing="0">
 115     <tr>
 116       <td valign="top">
 117           <label for="removeselect"><?php print_string('existingmembers', 'group', $currentmemberscount); //count($contextusers) ?></label>
 118           <br />
 119           <select name="removeselect[]" size="20" id="removeselect" multiple="multiple"
 120                   onfocus="document.getElementById('assignform').add.disabled=true;
 121                            document.getElementById('assignform').remove.disabled=false;
 122                            document.getElementById('assignform').addselect.selectedIndex=-1;">
 123           <?php echo $currentmembersoptions ?>
 124           </select></td>
 125       <td valign="top">
 126 <?php // Hidden assignment? ?>
 127
 128         <?php check_theme_arrows(); ?>
 129         <p class="arrow_button">
 130             <input name="add" id="add" type="submit" value="<?php echo '&nbsp;'.$THEME->larrow.' &nbsp; &nbsp; '.get_string('add'); ?>" title="<?php print_string('add'); ?>" />
 131             <br />
 132             <input name="remove" id="remove" type="submit" value="<?php echo '&nbsp; '.$THEME->rarrow.' &nbsp; &nbsp; '.get_string('remove'); ?>" title="<?php print_string('remove'); ?>" />
 133         </p>
 134       </td>
 135       <td valign="top">
 136           <label for="addselect"><?php print_string('potentialmembers', 'group', $potentialmemberscount); //$usercount ?></label>
 137           <br />
 138           <select name="addselect[]" size="20" id="addselect" multiple="multiple"
 139                   onfocus="document.getElementById('assignform').add.disabled=false;
 140                            document.getElementById('assignform').remove.disabled=true;
 141                            document.getElementById('assignform').removeselect.selectedIndex=-1;">
 142          <?php echo $potentialmembersoptions ?>
 143          </select>
 144          <br />
 145        </td>
 146     </tr>
 147     <tr><td>
 148         <input type="submit" name="cancel" value="<?php print_string('backtogroupings', 'group'); ?>" />
 149     </td></tr>
 150     </table>
 151     </div>
 152     </form>
 153 </div>
 154
 155 <?php
 156     print_footer($course);
 157
 158
 159 ?>