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     $success = false;
  26     print_error('invalidcourse');
  27 }
  28 if (empty($groupid)) {
  29     $success = false;
  30     print_error('errorinvalidgroup', 'group', groups_home_url($courseid));
  31 }
  32
  33 if ($success) {
  34     // Make sure that the user has permissions to manage groups.
  35     require_login($courseid);
  36
  37     $context = get_context_instance(CONTEXT_COURSE, $courseid);
  38     if (! has_capability('moodle/course:managegroups', $context)) {
  39         redirect();
  40     }
  41
  42     if ($frm = data_submitted() and confirm_sesskey()) {
  43
  44         if (isset($frm->cancel)) {
  45             redirect('index.php?id='. $courseid
  46                 .'&groupingid='. $groupingid .'&groupid='. $groupid);
  47         }
  48         elseif (isset($frm->add) and !empty($frm->addselect)) {
  49
  50             foreach ($frm->addselect as $userid) {
  51                 if (! $userid = clean_param($userid, PARAM_INT)) {
  52                     continue;
  53                 }
  54                 $success = groups_add_member($groupid, $userid);
  55                 if (! $success) {
  56                     print_error('erroraddremoveuser', 'group', groups_home_url($courseid));
  57                 }
  58             }
  59         }
  60         elseif (isset($frm->remove) and !empty($frm->removeselect)) {
  61
  62             foreach ($frm->removeselect as $userid) {
  63                 if (! $userid = clean_param($userid, PARAM_INT)) {
  64                     continue;
  65                 }
  66                 $success = groups_remove_member($groupid, $userid);
  67                 if (! $success) {
  68                     print_error('erroraddremoveuser', 'group', groups_home_url($courseid));
  69                 }
  70             }
  71         }
  72     }
  73
  74     // Print the page and form
  75     $strgroups = get_string('groups');
  76     $strparticipants = get_string('participants');
  77
  78     $groupname = groups_get_group_displayname($groupid);
  79
  80     print_header("$course->shortname: $strgroups",
  81                  $course->fullname,
  82                  "<a href=\"$CFG->wwwroot/course/view.php?id=$courseid\">$course->shortname</a> ".
  83                  "-> <a href=\"$CFG->wwwroot/user/index.php?id=$courseid\">$strparticipants</a> ".
  84                  "-> $strgroups", '', '', true, '', user_login_string($course, $USER));
  85
  86 ?>
  87 <div id="addmembersform">
  88     <h3 class="main"><?php print_string('adduserstogroup', 'group'); echo " $groupname"; ?></h3>
  89
  90     <form name="assignform" id="assignform" method="post" action="">
  91
  92     <input type="hidden" name="sesskey" value="<?php p(sesskey()); ?>" />
  93     <input type="hidden" name="courseid" value="<?php p($courseid); ?>" />
  94     <input type="hidden" name="grouping" value="<?php echo $groupingid; ?>" />
  95     <input type="hidden" name="group" value="<?php echo $groupid; ?>" />
  96
  97     <table summary="" align="center" cellpadding="5" cellspacing="0">
  98     <tr>
  99       <td valign="top">
 100           <label for="removeselect"><?php print_string('existingusers', 'role'); //count($contextusers) ?></label>
 101           <br />
 102           <select name="removeselect[]" size="20" id="removeselect" multiple="multiple"
 103                   onfocus="document.assignform.add.disabled=true;
 104                            document.assignform.remove.disabled=false;
 105                            document.assignform.addselect.selectedIndex=-1;">
 106 <?php
 107     $userids = groups_get_members($groupid);
 108
 109     if ($userids != false) {
 110         // Put the groupings into a hash and sorts them
 111         foreach ($userids as $userid) {
 112             $listmembers[$userid] = groups_get_user_displayname($userid, $courseid);
 113         }
 114         natcasesort($listmembers);
 115
 116         // Print out the HTML
 117         foreach($listmembers as $id => $name) {
 118             echo "<option value=\"$id\">$name</option>\n";
 119         }
 120     }
 121 ?>
 122           </select></td>
 123       <td valign="top">
 124 <?php // Hidden assignment? ?>
 125
 126         <?php check_theme_arrows(); ?>
 127         <p class="arrow_button">
 128             <input name="add" id="add" type="submit" value="<?php echo '&nbsp;'.$THEME->larrow.' &nbsp; &nbsp; '.get_string('add'); ?>" title="<?php print_string('add'); ?>" />
 129             <br />
 130             <input name="remove" id="remove" type="submit" value="<?php echo '&nbsp; '.$THEME->rarrow.' &nbsp; &nbsp; '.get_string('remove'); ?>" title="<?php print_string('remove'); ?>" />
 131         </p>
 132       </td>
 133       <td valign="top">
 134           <label for="addselect"><?php print_string('potentialusers', 'role'); //$usercount ?></label>
 135           <br />
 136           <select name="addselect[]" size="20" id="addselect" multiple="multiple"
 137                   onfocus="document.assignform.add.disabled=false;
 138                            document.assignform.remove.disabled=true;
 139                            document.assignform.removeselect.selectedIndex=-1;">
 140     <?php
 141     //TODO: If no 'showall' button, then set true.
 142     $showall = true;
 143     unset($userids);
 144     if (!$showall && $groupingid != GROUP_NOT_IN_GROUPING) {
 145         $userids = groups_get_users_not_in_any_group_in_grouping($courseid, $groupingid, $groupid);
 146     } else {
 147         $userids = groups_get_users_not_in_group($courseid, $groupid);
 148     }
 149
 150     if ($userids != false) {
 151         // Put the groupings into a hash and sorts them
 152         foreach ($userids as $userid) {
 153             $nonmembers[$userid] = groups_get_user_displayname($userid, $courseid);
 154         }
 155         natcasesort($nonmembers);
 156
 157         // Print out the HTML
 158         foreach($nonmembers as $id => $name) {
 159             echo "<option value=\"$id\">$name</option>\n";
 160         }
 161     }
 162     ?>
 163          </select>
 164          <br />
 165          <?php //TODO: Search box?
 166
 167               /*if (!empty($searchtext)) {
 168                   echo '<input name="showall" type="submit" value="'.get_string('showall').'" />'."\n";
 169               }*/
 170          ?>
 171        </td>
 172     </tr>
 173     <tr><td>
 174         <input type="submit" name="cancel" value="<?php print_string('return', 'group'); ?>" />
 175     </td></tr>
 176     </table>
 177
 178     </form>
 179 </div>
 180
 181 <?php
 182     print_footer($course);
 183 }
 184
 185 ?>