group/index.php

   1 <?php
   2 /**
   3  * The main group management user interface.
   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($CFG->libdir.'/json/JSON.php');
  14
  15 require_js('yui_yahoo');
  16 require_js('yui_dom');
  17 require_js('yui_utilities');
  18 require_js('yui_connection');
  19 require_js($CFG->wwwroot.'/group/lib/clientlib.js');
  20
  21 $courseid = required_param('id', PARAM_INT);
  22 $groupid  = optional_param('group', false, PARAM_INT);
  23 $userid   = optional_param('user', false, PARAM_INT);
  24 $action   = groups_param_action();
  25
  26 $returnurl = $CFG->wwwroot.'/group/index.php?id='.$courseid;
  27
  28 // Get the course information so we can print the header and
  29 // check the course id is valid
  30
  31 if (!$course = groups_get_course_info($courseid)) {
  32     $success = false;
  33     print_error('invalidcourse'); //'The course ID is invalid'
  34 }
  35
  36     // Make sure that the user has permissions to manage groups.
  37     require_login($course);
  38
  39     $context = get_context_instance(CONTEXT_COURSE, $courseid);
  40     if (! has_capability('moodle/course:managegroups', $context)) {
  41         redirect(); //"group.php?id=$course->id");   // Not allowed to see all groups
  42     }
  43
  44     switch ($action) {
  45         case false: //OK, display form.
  46             break;
  47
  48         case 'ajax_getmembersingroup':
  49             $members = array();
  50
  51             if ($memberids = groups_get_members($groupid)) {
  52                 $member_names = groups_userids_to_user_names($memberids, $courseid);
  53                 $json = new Services_JSON();
  54                 echo $json->encode($member_names);
  55             }
  56             die;  // Client side JavaScript takes it from here.
  57
  58         case 'deletegroup':
  59             redirect('edit.php?delete=1&amp;courseid='.$courseid.'&amp;id='.$groupid);
  60             break;
  61
  62         case 'showcreateorphangroupform':
  63             redirect('edit.php?courseid='.$courseid);
  64             break;
  65
  66         case 'showgroupsettingsform':
  67             redirect('edit.php?courseid='.$courseid.'&amp;id='.$groupid);
  68             break;
  69
  70         case 'updategroups': //Currently reloading.
  71             break;
  72
  73         case 'removemembers':
  74             break;
  75
  76         case 'showaddmembersform':
  77             redirect('assign.php?group='.$groupid);
  78             break;
  79
  80         case 'updatemembers': //Currently reloading.
  81             break;
  82
  83         default: //ERROR.
  84             if (debugging()) {
  85                 error('Error, unknown button/action. Probably a user-interface bug!', $returnurl);
  86             break;
  87         }
  88     }
  89
  90     // Print the page and form
  91     $strgroups = get_string('groups');
  92     $strparticipants = get_string('participants');
  93
  94     print_header("$course->shortname: $strgroups",
  95                  $course->fullname,
  96                  "<a href=\"$CFG->wwwroot/course/view.php?id=$courseid\">$course->shortname</a> ".
  97                  "-> <a href=\"$CFG->wwwroot/user/index.php?id=$courseid\">$strparticipants</a> ".
  98                  "-> $strgroups", '', '', true, '', user_login_string($course, $USER));
  99
 100     $disabled = 'disabled="disabled"';
 101
 102     $showeditgroupsettingsform_disabled = $disabled;
 103     $deletegroup_disabled = $disabled;
 104     $showcreategroupform_disabled = $disabled;
 105
 106     if (!empty($groupid)) {
 107         $showaddmembersform_disabled = '';
 108         $showeditgroupsettingsform_disabled = '';
 109         $deletegroup_disabled = '';
 110     } else {
 111         $deletegroup_disabled = $disabled;
 112         $showeditgroupsettingsform_disabled = $disabled;
 113         $showaddmembersform_disabled = $disabled;
 114     }
 115
 116     print_heading(format_string($course->shortname) .' '.$strgroups, 'center', 3);
 117     echo '<form id="groupeditform" action="index.php" method="post">'."\n";
 118     echo '<div>'."\n";
 119     echo '<input type="hidden" name="id" value="' . $courseid . '" />'."\n";
 120
 121     echo '<table cellpadding="6" class="generaltable generalbox groupmanagementtable boxaligncenter" summary="">'."\n";
 122     echo '<tr>'."\n";
 123
 124
 125     echo "<td>\n";
 126     // NO GROUPINGS YET!
 127     echo '<p><label for="groups"><span id="groupslabel">'.get_string('groups').':</span><span id="thegrouping">&nbsp;</span></label></p>'."\n";
 128
 129     echo '<select name="group" id="groups" size="15" class="select" onchange="membersCombo.refreshMembers(this.options[this.selectedIndex].value);"'."\n";
 130     echo ' onclick="window.status=this.options[this.selectedIndex].title;" onmouseout="window.status=\'\';">'."\n";
 131
 132     if ($groups_records = get_groups($courseid)) {
 133         $groupids = groups_groups_to_groupids($groups_records, $courseid);
 134     } else {
 135         $groupids = false;
 136     }
 137
 138     $sel_groupid = 0;
 139
 140     if ($groupids) {
 141         // Put the groups into a hash and sort them
 142         $group_names = groups_groupids_to_group_names($groupids);
 143
 144         // Print out the HTML
 145         $count = 1;
 146         foreach ($group_names as $group) {
 147             $select = '';
 148             if ($groupid == $group->id) { //|| $count <= 1) ??
 149                 $select = ' selected="selected"';
 150                 $sel_groupid = $group->id;
 151             }
 152             echo "<option value=\"{$group->id}\"$select title=\"{$group->name}\">{$group->name}</option>\n";
 153             $count++;
 154         }
 155     } else {
 156         // Print an empty option to avoid the XHTML error of having an empty select element
 157         echo '<option>&nbsp;</option>';
 158     }
 159
 160     echo '</select>'."\n";
 161     echo '<p><input type="submit" name="act_updatemembers" id="updatemembers" value="'
 162             . get_string('showmembersforgroup', 'group') . '" /></p>'."\n";
 163     echo '<p><input type="submit" '. $showeditgroupsettingsform_disabled . ' name="act_showgroupsettingsform" id="showeditgroupsettingsform" value="'
 164             . get_string('editgroupsettings', 'group') . '" /></p>'."\n";
 165     echo '<p><input type="submit" '. $deletegroup_disabled . ' name="act_deletegroup" onclick="onDeleteGroup()" id="deletegroup" value="'
 166             . get_string('deleteselectedgroup', 'group') . '" /></p>'."\n";
 167
 168     echo '<p><input type="submit" name="act_showcreateorphangroupform" id="showcreateorphangroupform" value="'
 169             . get_string('creategroup', 'group') . '" /></p>'."\n";
 170
 171     echo '</td>'."\n";
 172     echo '<td>'."\n";
 173     echo '<p><label for="members"><span id="memberslabel">'.get_string('membersofselectedgroup', 'group').' </span><span id="thegroup">&nbsp;</span></label></p>'."\n";
 174     //NOTE: the SELECT was, multiple="multiple" name="user[]" - not used and breaks onclick.
 175     echo '<select name="user" id="members" size="15" class="select"'."\n";
 176     echo ' onclick="window.status=this.options[this.selectedIndex].title;" onmouseout="window.status=\'\';">'."\n";
 177
 178     $userids = false;
 179     if ($sel_groupid) {
 180         $userids = groups_get_members($sel_groupid);
 181     }
 182
 183     if ($userids) {
 184         // Put the groupings into a hash and sort them
 185         $user_names = groups_userids_to_user_names($userids, $courseid);
 186         if(empty($user_names)) {
 187             echo '<option>&nbsp;</option>';
 188         } else {
 189             foreach ($user_names as $user) {
 190                 echo "<option value=\"{$user->id}\" title=\"{$user->name}\">{$user->name}</option>\n";
 191             }
 192         }
 193     } else {
 194         // Print an empty option to avoid the XHTML error of having an empty select element
 195         echo '<option>&nbsp;</option>';
 196     }
 197
 198     echo '</select>'."\n";
 199
 200     echo '<p><input type="submit" ' . $showaddmembersform_disabled . ' name="act_showaddmembersform" '
 201             . 'id="showaddmembersform" value="' . get_string('adduserstogroup', 'group'). '" /></p>'."\n";
 202     echo '</td>'."\n";
 203     echo '</tr>'."\n";
 204     echo '</table>'."\n";
 205
 206     //<input type="hidden" name="rand" value="om" />
 207     echo '</div>'."\n";
 208     echo '</form>'."\n";
 209
 210     echo '<script type="text/javascript">'."\n";
 211     echo '//<![CDATA['."\n";
 212     echo 'var groupsCombo = new UpdatableGroupsCombo("'.$CFG->wwwroot.'", '.$course->id.');'."\n";
 213     echo 'var membersCombo = new UpdatableMembersCombo("'.$CFG->wwwroot.'", '.$course->id.');'."\n";
 214     echo '//]]>'."\n";
 215     echo '</script>'."\n";
 216
 217     print_footer($course);
 218
 219
 220 ?>