group/assign.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * Add/remove group from grouping.
  20  *
  21  * @copyright 1999 Martin Dougiamas  http://dougiamas.com
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @package   core_group
  24  */
  25
  26 require_once('../config.php');
  27 require_once('lib.php');
  28
  29 $groupingid = required_param('id', PARAM_INT);
  30
  31 $PAGE->set_url('/group/assign.php', array('id'=>$groupingid));
  32
  33 if (!$grouping = $DB->get_record('groupings', array('id'=>$groupingid))) {
  34     print_error('invalidgroupid');
  35 }
  36
  37 if (!$course = $DB->get_record('course', array('id'=>$grouping->courseid))) {
  38     print_error('invalidcourse');
  39 }
  40 $courseid = $course->id;
  41
  42 require_login($course);
  43 $context = context_course::instance($courseid);
  44 require_capability('moodle/course:managegroups', $context);
  45
  46 $returnurl = $CFG->wwwroot.'/group/groupings.php?id='.$courseid;
  47
  48
  49 if ($frm = data_submitted() and confirm_sesskey()) {
  50
  51     if (isset($frm->cancel)) {
  52         redirect($returnurl);
  53
  54     } else if (isset($frm->add) and !empty($frm->addselect)) {
  55         foreach ($frm->addselect as $groupid) {
  56             // Ask this method not to purge the cache, we'll do it ourselves afterwards.
  57             groups_assign_grouping($grouping->id, (int)$groupid, null, false);
  58         }
  59         // Invalidate the course groups cache seeing as we've changed it.
  60         cache_helper::invalidate_by_definition('core', 'groupdata', array(), array($courseid));
  61
  62     } else if (isset($frm->remove) and !empty($frm->removeselect)) {
  63         foreach ($frm->removeselect as $groupid) {
  64             // Ask this method not to purge the cache, we'll do it ourselves afterwards.
  65             groups_unassign_grouping($grouping->id, (int)$groupid, false);
  66         }
  67         // Invalidate the course groups cache seeing as we've changed it.
  68         cache_helper::invalidate_by_definition('core', 'groupdata', array(), array($courseid));
  69     }
  70 }
  71
  72
  73 $currentmembers = array();
  74 $potentialmembers  = array();
  75
  76 if ($groups = $DB->get_records('groups', array('courseid'=>$courseid), 'name')) {
  77     if ($assignment = $DB->get_records('groupings_groups', array('groupingid'=>$grouping->id))) {
  78         foreach ($assignment as $ass) {
  79             $currentmembers[$ass->groupid] = $groups[$ass->groupid];
  80             unset($groups[$ass->groupid]);
  81         }
  82     }
  83     $potentialmembers = $groups;
  84 }
  85
  86 $currentmembersoptions = '';
  87 $currentmemberscount = 0;
  88 if ($currentmembers) {
  89     foreach($currentmembers as $group) {
  90         $currentmembersoptions .= '<option value="'.$group->id.'.">'.format_string($group->name).'</option>';
  91         $currentmemberscount ++;
  92     }
  93
  94     // Get course managers so they can be highlighted in the list
  95     if ($managerroles = get_config('', 'coursecontact')) {
  96         $coursecontactroles = explode(',', $managerroles);
  97         foreach ($coursecontactroles as $roleid) {
  98             $role = $DB->get_record('role', array('id'=>$roleid));
  99             $managers = get_role_users($roleid, $context, true, 'u.id', 'u.id ASC');
 100         }
 101     }
 102 } else {
 103     $currentmembersoptions .= '<option>&nbsp;</option>';
 104 }
 105
 106 $potentialmembersoptions = '';
 107 $potentialmemberscount = 0;
 108 if ($potentialmembers) {
 109     foreach($potentialmembers as $group) {
 110         $potentialmembersoptions .= '<option value="'.$group->id.'.">'.format_string($group->name).'</option>';
 111         $potentialmemberscount ++;
 112     }
 113 } else {
 114     $potentialmembersoptions .= '<option>&nbsp;</option>';
 115 }
 116
 117 // Print the page and form
 118 $strgroups = get_string('groups');
 119 $strparticipants = get_string('participants');
 120 $straddgroupstogroupings = get_string('addgroupstogroupings', 'group');
 121
 122 $groupingname = format_string($grouping->name);
 123
 124 navigation_node::override_active_url(new moodle_url('/group/index.php', array('id'=>$course->id)));
 125 $PAGE->set_pagelayout('admin');
 126
 127 $PAGE->navbar->add($strparticipants, new moodle_url('/user/index.php', array('id'=>$courseid)));
 128 $PAGE->navbar->add($strgroups, new moodle_url('/group/index.php', array('id'=>$courseid)));
 129 $PAGE->navbar->add($straddgroupstogroupings);
 130
 131 /// Print header
 132 $PAGE->set_title("$course->shortname: $strgroups");
 133 $PAGE->set_heading($course->fullname);
 134 echo $OUTPUT->header();
 135
 136 ?>
 137 <div id="addmembersform">
 138     <h3 class="main"><?php print_string('addgroupstogroupings', 'group'); echo ": $groupingname"; ?></h3>
 139
 140     <form id="assignform" method="post" action="">
 141     <div>
 142     <input type="hidden" name="sesskey" value="<?php p(sesskey()); ?>" />
 143
 144     <table summary="" cellpadding="5" cellspacing="0">
 145     <tr>
 146       <td valign="top">
 147           <label for="removeselect"><?php print_string('existingmembers', 'group', $currentmemberscount); ?></label>
 148           <br />
 149           <select name="removeselect[]" size="20" id="removeselect" multiple="multiple"
 150                   onfocus="document.getElementById('assignform').add.disabled=true;
 151                            document.getElementById('assignform').remove.disabled=false;
 152                            document.getElementById('assignform').addselect.selectedIndex=-1;">
 153           <?php echo $currentmembersoptions ?>
 154           </select></td>
 155       <td valign="top">
 156
 157         <p class="arrow_button">
 158             <input name="add" id="add" type="submit" value="<?php echo '&nbsp;'.$OUTPUT->larrow().' &nbsp; &nbsp; '.get_string('add'); ?>" title="<?php print_string('add'); ?>" />
 159             <br />
 160             <input name="remove" id="remove" type="submit" value="<?php echo '&nbsp; '.$OUTPUT->rarrow().' &nbsp; &nbsp; '.get_string('remove'); ?>" title="<?php print_string('remove'); ?>" />
 161         </p>
 162       </td>
 163       <td valign="top">
 164           <label for="addselect"><?php print_string('potentialmembers', 'group', $potentialmemberscount); ?></label>
 165           <br />
 166           <select name="addselect[]" size="20" id="addselect" multiple="multiple"
 167                   onfocus="document.getElementById('assignform').add.disabled=false;
 168                            document.getElementById('assignform').remove.disabled=true;
 169                            document.getElementById('assignform').removeselect.selectedIndex=-1;">
 170          <?php echo $potentialmembersoptions ?>
 171          </select>
 172          <br />
 173        </td>
 174     </tr>
 175     <tr><td>
 176         <input type="submit" name="cancel" value="<?php print_string('backtogroupings', 'group'); ?>" />
 177     </td></tr>
 178     </table>
 179     </div>
 180     </form>
 181 </div>
 182
 183 <?php
 184     echo $OUTPUT->footer();