group/assign.php

   1 <?php
   2 /**
   3  * Add/remove members from group.
   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($CFG->libdir.'/moodlelib.php');
  14
  15 $success = true;
  16
  17 $courseid   = required_param('courseid', PARAM_INT);
  18 $groupingid = required_param('grouping', PARAM_INT);
  19 $groupid    = required_param('group', PARAM_INT);
  20
  21 // Get the course information so we can print the header and
  22 // check the course id is valid
  23 $course = groups_get_course_info($courseid);
  24 if (! $course) {
  25     $success = false;
  26     print_error('The course ID is invalid');
  27 }
  28
  29 if ($success) {
  30     // Make sure that the user has permissions to manage groups.
  31     require_login($courseid);
  32
  33     $context = get_context_instance(CONTEXT_COURSE, $courseid);
  34     if (! has_capability('moodle/course:managegroups', $context)) {
  35         redirect();
  36     }
  37
  38     if ($frm = data_submitted() and confirm_sesskey()) {
  39
  40         if (isset($frm->cancel)) {
  41             redirect('index.php?id='. $courseid
  42                 .'&groupingid='. $groupingid .'&groupid='. $groupid);
  43         }
  44         elseif (isset($frm->add) and !empty($frm->addselect)) {
  45
  46             foreach ($frm->addselect as $userid) {
  47                 if (! $userid = clean_param($userid, PARAM_INT)) {
  48                     continue;
  49                 }
  50                 //echo "Try user $userid, group $groupid<br/>\n";
  51                 $success = groups_add_member($groupid, $userid);
  52                 if (! $success) {
  53                     print_error('Failed to add user $userid to group.');
  54                 }
  55             }
  56         }
  57         elseif (isset($frm->remove) and !empty($frm->removeselect)) {
  58
  59             foreach ($frm->removeselect as $userid) {
  60                 if (! $userid = clean_param($userid, PARAM_INT)) {
  61                     continue;
  62                 }
  63                 $success = groups_remove_member($groupid, $userid);
  64                 if (! $success) {
  65                     print_error('Failed to remove user $userid from group.');
  66                 }
  67             }
  68         }
  69     }
  70
  71     // Print the page and form
  72     $strgroups = get_string('groups');
  73     $strparticipants = get_string('participants');
  74
  75     $groupname = groups_get_group_displayname($groupid);
  76
  77     print_header("$course->shortname: $strgroups",
  78                  "$course->fullname",
  79                  "<a href=\"$CFG->wwwroot/course/view.php?id=$courseid\">$course->shortname</a> ".
  80                  "-> <a href=\"$CFG->wwwroot/user/index.php?id=$courseid\">$strparticipants</a> ".
  81                  "-> $strgroups", '', '', true, '', user_login_string($course, $USER));
  82
  83     //require_once('assign-form.html');
  84 ?>
  85 <div id="addmembersform">
  86     <h3 class="main"><?php print_string('adduserstogroup', 'group'); echo " $groupname"; ?></h3>
  87
  88     <form name="assignform" id="assignform" method="post" action="">
  89
  90     <input type="hidden" name="sesskey" value="<?php p(sesskey()); ?>" />
  91     <input type="hidden" name="courseid" value="<?php p($courseid); ?>" />
  92     <input type="hidden" name="grouping" value="<?php echo $groupingid; ?>" />
  93     <input type="hidden" name="group" value="<?php echo $groupid; ?>" />
  94
  95     <table summary="" align="center" cellpadding="5" cellspacing="0">
  96     <tr>
  97       <td valign="top">
  98           <label for="removeselect"><?php print_string('existingusers', 'role'); //count($contextusers) ?></label>
  99           <br />
 100           <select name="removeselect[]" size="20" id="removeselect" multiple="multiple"
 101                   onfocus="document.assignform.add.disabled=true;
 102                            document.assignform.remove.disabled=false;
 103                            document.assignform.addselect.selectedIndex=-1;">
 104 <?php
 105     $userids = groups_get_members($groupid);
 106
 107     if ($userids != false) {
 108         // Put the groupings into a hash and sorts them
 109         foreach ($userids as $userid) {
 110             $listmembers[$userid] = groups_get_user_displayname($userid, $courseid);
 111         }
 112         natcasesort($listmembers);
 113
 114         // Print out the HTML
 115         foreach($listmembers as $id => $name) {
 116             echo "<option value=\"$id\">$name</option>\n";
 117         }
 118     }
 119 ?>
 120           </select></td>
 121       <td valign="top">
 122 <?php // Hidden assignment? ?>
 123
 124         <?php check_theme_arrows(); ?>
 125         <p class="arrow_button">
 126             <input name="add" id="add" type="submit" value="<?php echo '&nbsp;'.$THEME->larrow.' &nbsp; &nbsp; '.get_string('add'); ?>" title="<?php print_string('add'); ?>" />
 127             <br />
 128             <input name="remove" id="remove" type="submit" value="<?php echo '&nbsp; '.$THEME->rarrow.' &nbsp; &nbsp; '.get_string('remove'); ?>" title="<?php print_string('remove'); ?>" />
 129         </p>
 130       </td>
 131       <td valign="top">
 132           <label for="addselect"><?php print_string('potentialusers', 'role'); //$usercount ?></label>
 133           <br />
 134           <select name="addselect[]" size="20" id="addselect" multiple="multiple"
 135                   onfocus="document.assignform.add.disabled=false;
 136                            document.assignform.remove.disabled=true;
 137                            document.assignform.removeselect.selectedIndex=-1;">
 138     <?php
 139     $showall = 0;
 140     unset($userids);
 141     if ($showall == 0 && $groupingid != GROUP_NOT_IN_GROUPING) {
 142         $userids = groups_get_users_not_in_any_group_in_grouping($courseid, $groupingid, $groupid);
 143     } else {
 144         $userids = groups_get_users_not_in_group($courseid, $groupid);
 145     }
 146
 147     if ($userids != false) {
 148         // Put the groupings into a hash and sorts them
 149         foreach ($userids as $userid) {
 150             $nonmembers[$userid] = groups_get_user_displayname($userid, $courseid);
 151         }
 152         natcasesort($nonmembers);
 153
 154         // Print out the HTML
 155         foreach($nonmembers as $id => $name) {
 156             echo "<option value=\"$id\">$name</option>\n";
 157         }
 158     }
 159     ?>
 160          </select>
 161          <br />
 162          <?php //TODO: Search box
 163
 164               if (!empty($searchtext)) {
 165                   echo '<input name="showall" id="showall" type="submit" value="'.$strshowall.'" />'."\n";
 166               }
 167          ?>
 168        </td>
 169     </tr>
 170     <tr><td>
 171         <input type="submit" name="cancel" value="<?php print_string('return', 'group'); ?>" />
 172     </td></tr>
 173     </table>
 174
 175     </form>
 176 </div>
 177
 178 <?php
 179     print_footer($course);
 180 }
 181
 182 ?>