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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  
  18  /**
  19   * Print an overview of groupings & group membership
  20   *
  21   * @copyright  Matt Clarkson [email protected]
  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($CFG->libdir . '/filelib.php');
  28  
  29  $courseid   = required_param('id', PARAM_INT);
  30  $groupid    = optional_param('group', 0, PARAM_INT);
  31  $groupingid = optional_param('grouping', 0, PARAM_INT);
  32  
  33  $returnurl = $CFG->wwwroot.'/group/index.php?id='.$courseid;
  34  $rooturl   = $CFG->wwwroot.'/group/overview.php?id='.$courseid;
  35  
  36  if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  37      print_error('invalidcourse');
  38  }
  39  
  40  $url = new moodle_url('/group/overview.php', array('id'=>$courseid));
  41  if ($groupid !== 0) {
  42      $url->param('group', $groupid);
  43  }
  44  if ($groupingid !== 0) {
  45      $url->param('grouping', $groupingid);
  46  }
  47  $PAGE->set_url($url);
  48  
  49  // Make sure that the user has permissions to manage groups.
  50  require_login($course);
  51  
  52  $context = context_course::instance($courseid);
  53  require_capability('moodle/course:managegroups', $context);
  54  
  55  $strgroups           = get_string('groups');
  56  $strparticipants     = get_string('participants');
  57  $stroverview         = get_string('overview', 'group');
  58  $strgrouping         = get_string('grouping', 'group');
  59  $strgroup            = get_string('group', 'group');
  60  $strnotingrouping    = get_string('notingrouping', 'group');
  61  $strfiltergroups     = get_string('filtergroups', 'group');
  62  $strnogroups         = get_string('nogroups', 'group');
  63  $strdescription      = get_string('description');
  64  
  65  // Get all groupings and sort them by formatted name.
  66  $groupings = $DB->get_records('groupings', array('courseid'=>$courseid), 'name');
  67  foreach ($groupings as $gid => $grouping) {
  68      $groupings[$gid]->formattedname = format_string($grouping->name, true, array('context' => $context));
  69  }
  70  core_collator::asort_objects_by_property($groupings, 'formattedname');
  71  $members = array();
  72  foreach ($groupings as $grouping) {
  73      $members[$grouping->id] = array();
  74  }
  75  $members[-1] = array(); //groups not in a grouping
  76  
  77  // Get all groups
  78  $groups = $DB->get_records('groups', array('courseid'=>$courseid), 'name');
  79  
  80  $params = array('courseid'=>$courseid);
  81  if ($groupid) {
  82      $groupwhere = "AND g.id = :groupid";
  83      $params['groupid']   = $groupid;
  84  } else {
  85      $groupwhere = "";
  86  }
  87  
  88  if ($groupingid) {
  89      $groupingwhere = "AND gg.groupingid = :groupingid";
  90      $params['groupingid'] = $groupingid;
  91  } else {
  92      $groupingwhere = "";
  93  }
  94  
  95  list($sort, $sortparams) = users_order_by_sql('u');
  96  
  97  $allnames = get_all_user_name_fields(true, 'u');
  98  $sql = "SELECT g.id AS groupid, gg.groupingid, u.id AS userid, $allnames, u.idnumber, u.username
  99            FROM {groups} g
 100                 LEFT JOIN {groupings_groups} gg ON g.id = gg.groupid
 101                 LEFT JOIN {groups_members} gm ON g.id = gm.groupid
 102                 LEFT JOIN {user} u ON gm.userid = u.id
 103           WHERE g.courseid = :courseid $groupwhere $groupingwhere
 104        ORDER BY g.name, $sort";
 105  
 106  $rs = $DB->get_recordset_sql($sql, array_merge($params, $sortparams));
 107  foreach ($rs as $row) {
 108      $user = new stdClass();
 109      $user = username_load_fields_from_object($user, $row, null, array('id' => 'userid', 'username', 'idnumber'));
 110      if (!$row->groupingid) {
 111          $row->groupingid = -1;
 112      }
 113      if (!array_key_exists($row->groupid, $members[$row->groupingid])) {
 114          $members[$row->groupingid][$row->groupid] = array();
 115      }
 116      if(isset($user->id)){
 117          $members[$row->groupingid][$row->groupid][] = $user;
 118      }
 119  }
 120  $rs->close();
 121  
 122  navigation_node::override_active_url(new moodle_url('/group/index.php', array('id'=>$courseid)));
 123  $PAGE->navbar->add(get_string('overview', 'group'));
 124  
 125  /// Print header
 126  $PAGE->set_title($strgroups);
 127  $PAGE->set_heading($course->fullname);
 128  $PAGE->set_pagelayout('standard');
 129  echo $OUTPUT->header();
 130  
 131  // Add tabs
 132  $currenttab = 'overview';
 133  require ('tabs.php');
 134  
 135  /// Print overview
 136  echo $OUTPUT->heading(format_string($course->shortname, true, array('context' => $context)) .' '.$stroverview, 3);
 137  
 138  echo $strfiltergroups;
 139  
 140  $options = array();
 141  $options[0] = get_string('all');
 142  foreach ($groupings as $grouping) {
 143      $options[$grouping->id] = strip_tags($grouping->formattedname);
 144  }
 145  $popupurl = new moodle_url($rooturl.'&group='.$groupid);
 146  $select = new single_select($popupurl, 'grouping', $options, $groupingid, array());
 147  $select->label = $strgrouping;
 148  $select->formid = 'selectgrouping';
 149  echo $OUTPUT->render($select);
 150  
 151  $options = array();
 152  $options[0] = get_string('all');
 153  foreach ($groups as $group) {
 154      $options[$group->id] = strip_tags(format_string($group->name));
 155  }
 156  $popupurl = new moodle_url($rooturl.'&grouping='.$groupingid);
 157  $select = new single_select($popupurl, 'group', $options, $groupid, array());
 158  $select->label = $strgroup;
 159  $select->formid = 'selectgroup';
 160  echo $OUTPUT->render($select);
 161  
 162  /// Print table
 163  $printed = false;
 164  $hoverevents = array();
 165  foreach ($members as $gpgid=>$groupdata) {
 166      if ($groupingid and $groupingid != $gpgid) {
 167          continue; // do not show
 168      }
 169      $table = new html_table();
 170      $table->head  = array(get_string('groupscount', 'group', count($groupdata)), get_string('groupmembers', 'group'), get_string('usercount', 'group'));
 171      $table->size  = array('20%', '70%', '10%');
 172      $table->align = array('left', 'left', 'center');
 173      $table->width = '90%';
 174      $table->data  = array();
 175      foreach ($groupdata as $gpid=>$users) {
 176          if ($groupid and $groupid != $gpid) {
 177              continue;
 178          }
 179          $line = array();
 180          $name = print_group_picture($groups[$gpid], $course->id, false, true, false) . format_string($groups[$gpid]->name);
 181          $description = file_rewrite_pluginfile_urls($groups[$gpid]->description, 'pluginfile.php', $context->id, 'group', 'description', $gpid);
 182          $options = new stdClass;
 183          $options->noclean = true;
 184          $options->overflowdiv = true;
 185          $jsdescription = trim(format_text($description, $groups[$gpid]->descriptionformat, $options));
 186          if (empty($jsdescription)) {
 187              $line[] = $name;
 188          } else {
 189              $line[] = html_writer::tag('span', $name, array('id'=>'group_'.$gpid));
 190              $hoverevents['group_'.$gpid] = $jsdescription;
 191          }
 192          $fullnames = array();
 193          foreach ($users as $user) {
 194              $fullnames[] = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$user->id.'&amp;course='.$course->id.'">'.fullname($user, true).'</a>';
 195          }
 196          $line[] = implode(', ', $fullnames);
 197          $line[] = count($users);
 198          $table->data[] = $line;
 199      }
 200      if ($groupid and empty($table->data)) {
 201          continue;
 202      }
 203      if ($gpgid < 0) {
 204          echo $OUTPUT->heading($strnotingrouping, 3);
 205      } else {
 206          echo $OUTPUT->heading($groupings[$gpgid]->formattedname, 3);
 207          $description = file_rewrite_pluginfile_urls($groupings[$gpgid]->description, 'pluginfile.php', $context->id, 'grouping', 'description', $gpgid);
 208          $options = new stdClass;
 209          $options->noclean = true;
 210          $options->overflowdiv = true;
 211          echo $OUTPUT->box(format_text($description, $groupings[$gpgid]->descriptionformat, $options), 'generalbox boxwidthnarrow boxaligncenter');
 212      }
 213      echo html_writer::table($table);
 214      $printed = true;
 215  }
 216  
 217  if (count($hoverevents)>0) {
 218      $PAGE->requires->string_for_js('description', 'moodle');
 219      $PAGE->requires->js_init_call('M.core_group.init_hover_events', array($hoverevents));
 220  }
 221  
 222  echo $OUTPUT->footer();