user/index.php

   1 <?php
   2
   3 //  Lists all the users within a given course
   4
   5     require_once('../config.php');
   6     require_once($CFG->libdir.'/tablelib.php');
   7     require_once($CFG->libdir.'/filelib.php');
   8
   9     define('USER_SMALL_CLASS', 20);   // Below this is considered small
  10     define('USER_LARGE_CLASS', 200);  // Above this is considered large
  11     define('DEFAULT_PAGE_SIZE', 20);
  12     define('SHOW_ALL_PAGE_SIZE', 5000);
  13     define('MODE_BRIEF', 0);
  14     define('MODE_USERDETAILS', 1);
  15
  16     $page         = optional_param('page', 0, PARAM_INT);                     // which page to show
  17     $perpage      = optional_param('perpage', DEFAULT_PAGE_SIZE, PARAM_INT);  // how many per page
  18     $mode         = optional_param('mode', NULL, PARAM_INT);                  // use the MODE_ constants
  19     $accesssince  = optional_param('accesssince',0,PARAM_INT);                // filter by last access. -1 = never
  20     $search       = optional_param('search','',PARAM_RAW);                    // make sure it is processed with p() or s() when sending to output!
  21     $roleid       = optional_param('roleid', 0, PARAM_INT);                   // optional roleid, 0 means all enrolled users (or all on the frontpage)
  22
  23     $contextid    = optional_param('contextid', 0, PARAM_INT);                // one of this or
  24     $courseid     = optional_param('id', 0, PARAM_INT);                       // this are required
  25
  26     $PAGE->set_url('/user/index.php', array(
  27             'page' => $page,
  28             'perpage' => $perpage,
  29             'mode' => $mode,
  30             'accesssince' => $accesssince,
  31             'search' => $search,
  32             'roleid' => $roleid,
  33             'contextid' => $contextid,
  34             'courseid' => $courseid));
  35
  36     if ($contextid) {
  37         $context = get_context_instance_by_id($contextid, MUST_EXIST);
  38         if ($context->contextlevel != CONTEXT_COURSE) {
  39             print_error('invalidcontext');
  40         }
  41         $course = $DB->get_record('course', array('id'=>$context->instanceid), '*', MUST_EXIST);
  42     } else {
  43         $course = $DB->get_record('course', array('id'=>$courseid), '*', MUST_EXIST);
  44         $context = get_context_instance(CONTEXT_COURSE, $course->id, MUST_EXIST);
  45     }
  46     // not needed anymore
  47     unset($contextid);
  48     unset($courseid);
  49
  50     require_login($course);
  51
  52     $systemcontext = get_context_instance(CONTEXT_SYSTEM);
  53     $isfrontpage = ($course->id == SITEID);
  54
  55     $frontpagectx = get_context_instance(CONTEXT_COURSE, SITEID);
  56
  57     if ($isfrontpage) {
  58         $PAGE->set_pagelayout('admin');
  59         require_capability('moodle/site:viewparticipants', $systemcontext);
  60     } else {
  61         $PAGE->set_pagelayout('incourse');
  62         require_capability('moodle/course:viewparticipants', $context);
  63     }
  64
  65     $rolenamesurl = new moodle_url("$CFG->wwwroot/user/index.php?contextid=$context->id&sifirst=&silast=");
  66
  67     $allroles = get_all_roles();
  68     $roles = get_profile_roles($context);
  69     $allrolenames = array();
  70     if ($isfrontpage) {
  71         $rolenames = array(0=>get_string('allsiteusers', 'role'));
  72     } else {
  73         $rolenames = array(0=>get_string('allparticipants'));
  74     }
  75
  76     foreach ($allroles as $role) {
  77         $allrolenames[$role->id] = strip_tags(role_get_name($role, $context));   // Used in menus etc later on
  78         if (isset($roles[$role->id])) {
  79             $rolenames[$role->id] = $allrolenames[$role->id];
  80         }
  81     }
  82
  83     // make sure other roles may not be selected by any means
  84     if (empty($rolenames[$roleid])) {
  85         print_error('noparticipants');
  86     }
  87
  88     // no roles to display yet?
  89     // frontpage course is an exception, on the front page course we should display all users
  90     if (empty($rolenames) && !$isfrontpage) {
  91         if (has_capability('moodle/role:assign', $context)) {
  92             redirect($CFG->wwwroot.'/'.$CFG->admin.'/roles/assign.php?contextid='.$context->id);
  93         } else {
  94             print_error('noparticipants');
  95         }
  96     }
  97
  98     add_to_log($course->id, 'user', 'view all', 'index.php?id='.$course->id, '');
  99
 100     $bulkoperations = has_capability('moodle/course:bulkmessaging', $context);
 101
 102     $countries = get_string_manager()->get_list_of_countries();
 103
 104     $strnever = get_string('never');
 105
 106     $datestring->year  = get_string('year');
 107     $datestring->years = get_string('years');
 108     $datestring->day   = get_string('day');
 109     $datestring->days  = get_string('days');
 110     $datestring->hour  = get_string('hour');
 111     $datestring->hours = get_string('hours');
 112     $datestring->min   = get_string('min');
 113     $datestring->mins  = get_string('mins');
 114     $datestring->sec   = get_string('sec');
 115     $datestring->secs  = get_string('secs');
 116
 117     if ($mode !== NULL) {
 118         $mode = (int)$mode;
 119         $SESSION->userindexmode = $mode;
 120     } else if (isset($SESSION->userindexmode)) {
 121         $mode = (int)$SESSION->userindexmode;
 122     } else {
 123         $mode = MODE_BRIEF;
 124     }
 125
 126 /// Check to see if groups are being used in this course
 127 /// and if so, set $currentgroup to reflect the current group
 128
 129     $groupmode    = groups_get_course_groupmode($course);   // Groups are being used
 130     $currentgroup = groups_get_course_group($course, true);
 131
 132     if (!$currentgroup) {      // To make some other functions work better later
 133         $currentgroup  = NULL;
 134     }
 135
 136     $isseparategroups = ($course->groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context));
 137
 138     if ($course->id===SITEID) {
 139         $PAGE->navbar->ignore_active();
 140     }
 141
 142     $PAGE->navbar->add(get_string('participants'));
 143     $PAGE->set_title("$course->shortname: ".get_string('participants'));
 144     $PAGE->set_heading($course->fullname);
 145     $PAGE->set_pagetype('course-view-' . $course->format);
 146     $PAGE->add_body_class('path-user');                     // So we can style it independently
 147     $PAGE->set_other_editing_capability('moodle/course:manageactivities');
 148
 149     echo $OUTPUT->header();
 150
 151     echo '<div class="userlist">';
 152
 153     if ($isseparategroups and (!$currentgroup) ) {
 154         // The user is not in the group so show message and exit
 155         echo $OUTPUT->heading(get_string("notingroup"));
 156         echo $OUTPUT->footer();
 157         exit;
 158     }
 159
 160
 161     // Should use this variable so that we don't break stuff every time a variable is added or changed.
 162     $baseurl = new moodle_url('/user/index.php', array(
 163             'contextid' => $context->id,
 164             'roleid' => $roleid,
 165             'id' => $course->id,
 166             'perpage' => $perpage,
 167             'accesssince' => $accesssince,
 168             'search' => s($search)));
 169
 170 /// setting up tags
 171     if ($course->id == SITEID) {
 172         $filtertype = 'site';
 173     } else if ($course->id && !$currentgroup) {
 174         $filtertype = 'course';
 175         $filterselect = $course->id;
 176     } else {
 177         $filtertype = 'group';
 178         $filterselect = $currentgroup;
 179     }
 180
 181
 182
 183 /// Get the hidden field list
 184     if (has_capability('moodle/course:viewhiddenuserfields', $context)) {
 185         $hiddenfields = array();  // teachers and admins are allowed to see everything
 186     } else {
 187         $hiddenfields = array_flip(explode(',', $CFG->hiddenuserfields));
 188     }
 189
 190     if (isset($hiddenfields['lastaccess'])) {
 191         // do not allow access since filtering
 192         $accesssince = 0;
 193     }
 194
 195 /// Print settings and things in a table across the top
 196     $controlstable = new html_table();
 197     $controlstable->attributes['class'] = 'controls';
 198     $controlstable->cellspacing = 0;
 199     $controlstable->data[] = new html_table_row();
 200
 201 /// Print my course menus
 202     if ($mycourses = enrol_get_my_courses()) {
 203         $courselist = array();
 204         $popupurl = new moodle_url('/user/index.php?roleid='.$roleid.'&sifirst=&silast=');
 205         foreach ($mycourses as $mycourse) {
 206             $coursecontext = get_context_instance(CONTEXT_COURSE, $mycourse->id);
 207             $courselist[$mycourse->id] = format_string($mycourse->shortname, true, array('context' => $coursecontext));
 208         }
 209         if (has_capability('moodle/site:viewparticipants', $systemcontext)) {
 210             unset($courselist[SITEID]);
 211             $courselist = array(SITEID => format_string($SITE->shortname, true, array('context' => $systemcontext))) + $courselist;
 212         }
 213         $select = new single_select($popupurl, 'id', $courselist, $course->id, array(''=>'choosedots'), 'courseform');
 214         $select->set_label(get_string('mycourses'));
 215         $controlstable->data[0]->cells[] = $OUTPUT->render($select);
 216     }
 217
 218     $controlstable->data[0]->cells[] = groups_print_course_menu($course, $baseurl->out(), true);
 219
 220     if (!isset($hiddenfields['lastaccess'])) {
 221         // get minimum lastaccess for this course and display a dropbox to filter by lastaccess going back this far.
 222         // we need to make it diferently for normal courses and site course
 223         if (!$isfrontpage) {
 224             $minlastaccess = $DB->get_field_sql('SELECT min(timeaccess)
 225                                                    FROM {user_lastaccess}
 226                                                   WHERE courseid = ?
 227                                                         AND timeaccess != 0', array($course->id));
 228             $lastaccess0exists = $DB->record_exists('user_lastaccess', array('courseid'=>$course->id, 'timeaccess'=>0));
 229         } else {
 230             $minlastaccess = $DB->get_field_sql('SELECT min(lastaccess)
 231                                                    FROM {user}
 232                                                   WHERE lastaccess != 0');
 233             $lastaccess0exists = $DB->record_exists('user', array('lastaccess'=>0));
 234         }
 235
 236         $now = usergetmidnight(time());
 237         $timeaccess = array();
 238         $baseurl->remove_params('accesssince');
 239
 240         // makes sense for this to go first.
 241         $timeoptions[0] = get_string('selectperiod');
 242
 243         // days
 244         for ($i = 1; $i < 7; $i++) {
 245             if (strtotime('-'.$i.' days',$now) >= $minlastaccess) {
 246                 $timeoptions[strtotime('-'.$i.' days',$now)] = get_string('numdays','moodle',$i);
 247             }
 248         }
 249         // weeks
 250         for ($i = 1; $i < 10; $i++) {
 251             if (strtotime('-'.$i.' weeks',$now) >= $minlastaccess) {
 252                 $timeoptions[strtotime('-'.$i.' weeks',$now)] = get_string('numweeks','moodle',$i);
 253             }
 254         }
 255         // months
 256         for ($i = 2; $i < 12; $i++) {
 257             if (strtotime('-'.$i.' months',$now) >= $minlastaccess) {
 258                 $timeoptions[strtotime('-'.$i.' months',$now)] = get_string('nummonths','moodle',$i);
 259             }
 260         }
 261         // try a year
 262         if (strtotime('-1 year',$now) >= $minlastaccess) {
 263             $timeoptions[strtotime('-1 year',$now)] = get_string('lastyear');
 264         }
 265
 266         if (!empty($lastaccess0exists)) {
 267             $timeoptions[-1] = get_string('never');
 268         }
 269
 270         if (count($timeoptions) > 1) {
 271             $select = new single_select($baseurl, 'accesssince', $timeoptions, $accesssince, null, 'timeoptions');
 272             $select->set_label(get_string('usersnoaccesssince'));
 273             $controlstable->data[0]->cells[] = $OUTPUT->render($select);
 274         }
 275     }
 276
 277     $formatmenu = array( '0' => get_string('brief'),
 278                          '1' => get_string('userdetails'));
 279     $select = new single_select($baseurl, 'mode', $formatmenu, $mode, null, 'formatmenu');
 280     $select->set_label(get_string('userlist'));
 281     $userlistcell = new html_table_cell();
 282     $userlistcell->attributes['class'] = 'right';
 283     $userlistcell->text = $OUTPUT->render($select);
 284     $controlstable->data[0]->cells[] = $userlistcell;
 285
 286     echo html_writer::table($controlstable);
 287
 288     if ($currentgroup and (!$isseparategroups or has_capability('moodle/site:accessallgroups', $context))) {    /// Display info about the group
 289         if ($group = groups_get_group($currentgroup)) {
 290             if (!empty($group->description) or (!empty($group->picture) and empty($group->hidepicture))) {
 291                 $groupinfotable = new html_table();
 292                 $groupinfotable->attributes['class'] = 'groupinfobox';
 293                 $picturecell = new html_table_cell();
 294                 $picturecell->attributes['class'] = 'left side picture';
 295                 $picturecell->text = print_group_picture($group, $course->id, true, true, false);
 296
 297                 $contentcell = new html_table_cell();
 298                 $contentcell->attributes['class'] = 'content';
 299
 300                 $contentheading = $group->name;
 301                 if (has_capability('moodle/course:managegroups', $context)) {
 302                     $aurl = new moodle_url('/group/group.php', array('id' => $group->id, 'courseid' => $group->courseid));
 303                     $contentheading .= '&nbsp;' . $OUTPUT->action_icon($aurl, new pix_icon('t/edit', get_string('editgroupprofile')));
 304                 }
 305
 306                 $group->description = file_rewrite_pluginfile_urls($group->description, 'pluginfile.php', $context->id, 'group', 'description', $group->id);
 307                 if (!isset($group->descriptionformat)) {
 308                     $group->descriptionformat = FORMAT_MOODLE;
 309                 }
 310                 $options = array('overflowdiv'=>true);
 311                 $contentcell->text = $OUTPUT->heading($contentheading, 3) . format_text($group->description, $group->descriptionformat, $options);
 312                 $groupinfotable->data[] = new html_table_row(array($picturecell, $contentcell));
 313                 echo html_writer::table($groupinfotable);
 314             }
 315         }
 316     }
 317
 318     /// Define a table showing a list of users in the current role selection
 319
 320     $tablecolumns = array('userpic', 'fullname');
 321     $tableheaders = array(get_string('userpic'), get_string('fullnameuser'));
 322     if ($mode === MODE_BRIEF && !isset($hiddenfields['city'])) {
 323         $tablecolumns[] = 'city';
 324         $tableheaders[] = get_string('city');
 325     }
 326     if ($mode === MODE_BRIEF && !isset($hiddenfields['country'])) {
 327         $tablecolumns[] = 'country';
 328         $tableheaders[] = get_string('country');
 329     }
 330     if (!isset($hiddenfields['lastaccess'])) {
 331         $tablecolumns[] = 'lastaccess';
 332         $tableheaders[] = get_string('lastaccess');
 333     }
 334
 335     if ($bulkoperations) {
 336         $tablecolumns[] = 'select';
 337         $tableheaders[] = get_string('select');
 338     }
 339
 340     $table = new flexible_table('user-index-participants-'.$course->id);
 341
 342     $table->define_columns($tablecolumns);
 343     $table->define_headers($tableheaders);
 344     $table->define_baseurl($baseurl->out());
 345
 346     if (!isset($hiddenfields['lastaccess'])) {
 347         $table->sortable(true, 'lastaccess', SORT_DESC);
 348     }
 349
 350     $table->no_sorting('roles');
 351     $table->no_sorting('groups');
 352     $table->no_sorting('groupings');
 353     $table->no_sorting('select');
 354
 355     $table->set_attribute('cellspacing', '0');
 356     $table->set_attribute('id', 'participants');
 357     $table->set_attribute('class', 'generaltable generalbox');
 358
 359     $table->set_control_variables(array(
 360                 TABLE_VAR_SORT    => 'ssort',
 361                 TABLE_VAR_HIDE    => 'shide',
 362                 TABLE_VAR_SHOW    => 'sshow',
 363                 TABLE_VAR_IFIRST  => 'sifirst',
 364                 TABLE_VAR_ILAST   => 'silast',
 365                 TABLE_VAR_PAGE    => 'spage'
 366                 ));
 367     $table->setup();
 368
 369     // we are looking for all users with this role assigned in this context or higher
 370     $contextlist = get_related_contexts_string($context);
 371
 372     list($esql, $params) = get_enrolled_sql($context, NULL, $currentgroup, true);
 373     $joins = array("FROM {user} u");
 374     $wheres = array();
 375
 376     if ($isfrontpage) {
 377         $select = "SELECT u.id, u.username, u.firstname, u.lastname,
 378                           u.email, u.city, u.country, u.picture,
 379                           u.lang, u.timezone, u.maildisplay, u.imagealt,
 380                           u.lastaccess";
 381         $joins[] = "JOIN ($esql) e ON e.id = u.id"; // everybody on the frontpage usually
 382         if ($accesssince) {
 383             $wheres[] = get_user_lastaccess_sql($accesssince);
 384         }
 385
 386     } else {
 387         $select = "SELECT u.id, u.username, u.firstname, u.lastname,
 388                           u.email, u.city, u.country, u.picture,
 389                           u.lang, u.timezone, u.maildisplay, u.imagealt,
 390                           COALESCE(ul.timeaccess, 0) AS lastaccess";
 391         $joins[] = "JOIN ($esql) e ON e.id = u.id"; // course enrolled users only
 392         $joins[] = "LEFT JOIN {user_lastaccess} ul ON (ul.userid = u.id AND ul.courseid = :courseid)"; // not everybody accessed course yet
 393         $params['courseid'] = $course->id;
 394         if ($accesssince) {
 395             $wheres[] = get_course_lastaccess_sql($accesssince);
 396         }
 397     }
 398
 399     // performance hacks - we preload user contexts together with accounts
 400     list($ccselect, $ccjoin) = context_instance_preload_sql('u.id', CONTEXT_USER, 'ctx');
 401     $select .= $ccselect;
 402     $joins[] = $ccjoin;
 403
 404
 405     // limit list to users with some role only
 406     if ($roleid) {
 407         $wheres[] = "u.id IN (SELECT userid FROM {role_assignments} WHERE roleid = :roleid AND contextid $contextlist)";
 408         $params['roleid'] = $roleid;
 409     }
 410
 411     $from = implode("\n", $joins);
 412     if ($wheres) {
 413         $where = "WHERE " . implode(" AND ", $wheres);
 414     } else {
 415         $where = "";
 416     }
 417
 418     $totalcount = $DB->count_records_sql("SELECT COUNT(u.id) $from $where", $params);
 419
 420     if (!empty($search)) {
 421         $fullname = $DB->sql_fullname('u.firstname','u.lastname');
 422         $wheres[] = "(". $DB->sql_like($fullname, ':search1', false, false) .
 423                     " OR ". $DB->sql_like('email', ':search2', false, false) .
 424                     " OR ". $DB->sql_like('idnumber', ':search3', false, false) .") ";
 425         $params['search1'] = "%$search%";
 426         $params['search2'] = "%$search%";
 427         $params['search3'] = "%$search%";
 428     }
 429
 430     list($twhere, $tparams) = $table->get_sql_where();
 431     if ($twhere) {
 432         $wheres[] = $twhere;
 433         $params = array_merge($params, $tparams);
 434     }
 435
 436     $from = implode("\n", $joins);
 437     if ($wheres) {
 438         $where = "WHERE " . implode(" AND ", $wheres);
 439     } else {
 440         $where = "";
 441     }
 442
 443     if ($table->get_sql_sort()) {
 444         $sort = ' ORDER BY '.$table->get_sql_sort();
 445     } else {
 446         $sort = '';
 447     }
 448
 449     $matchcount = $DB->count_records_sql("SELECT COUNT(u.id) $from $where", $params);
 450
 451     $table->initialbars(true);
 452     $table->pagesize($perpage, $matchcount);
 453
 454     // list of users at the current visible page - paging makes it relatively short
 455     $userlist = $DB->get_recordset_sql("$select $from $where $sort", $params, $table->get_page_start(), $table->get_page_size());
 456
 457     /// If there are multiple Roles in the course, then show a drop down menu for switching
 458     if (count($rolenames) > 1) {
 459         echo '<div class="rolesform">';
 460         echo '<label for="rolesform_jump">'.get_string('currentrole', 'role').'&nbsp;</label>';
 461         echo $OUTPUT->single_select($rolenamesurl, 'roleid', $rolenames, $roleid, null, 'rolesform');
 462         echo '</div>';
 463
 464     } else if (count($rolenames) == 1) {
 465         // when all users with the same role - print its name
 466         echo '<div class="rolesform">';
 467         echo get_string('role').get_string('labelsep', 'langconfig');
 468         $rolename = reset($rolenames);
 469         echo $rolename;
 470         echo '</div>';
 471     }
 472
 473     if ($roleid > 0) {
 474         $a->number = $totalcount;
 475         $a->role = $rolenames[$roleid];
 476         $heading = format_string(get_string('xuserswiththerole', 'role', $a));
 477
 478         if ($currentgroup and $group) {
 479             $a->group = $group->name;
 480             $heading .= ' ' . format_string(get_string('ingroup', 'role', $a));
 481         }
 482
 483         if ($accesssince) {
 484             $a->timeperiod = $timeoptions[$accesssince];
 485             $heading .= ' ' . format_string(get_string('inactiveformorethan', 'role', $a));
 486         }
 487
 488         $heading .= ": $a->number";
 489         if (user_can_assign($context, $roleid)) {
 490             $heading .= ' <a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/roles/assign.php?roleid='.$roleid.'&amp;contextid='.$context->id.'">';
 491             $heading .= '<img src="'.$OUTPUT->pix_url('i/edit') . '" class="icon" alt="" /></a>';
 492         }
 493         echo $OUTPUT->heading($heading, 3);
 494     } else {
 495         if ($course->id != SITEID && has_capability('moodle/course:enrolreview', $context)) {
 496             $editlink = $OUTPUT->action_icon(new moodle_url('/enrol/users.php', array('id' => $course->id)),
 497                                              new pix_icon('i/edit', get_string('edit')));
 498         } else {
 499             $editlink = '';
 500         }
 501         if ($course->id == SITEID and $roleid < 0) {
 502             $strallparticipants = get_string('allsiteusers', 'role');
 503         } else {
 504             $strallparticipants = get_string('allparticipants');
 505         }
 506         if ($matchcount < $totalcount) {
 507             echo $OUTPUT->heading($strallparticipants.get_string('labelsep', 'langconfig').$matchcount.'/'.$totalcount . $editlink, 3);
 508         } else {
 509             echo $OUTPUT->heading($strallparticipants.get_string('labelsep', 'langconfig').$matchcount . $editlink, 3);
 510         }
 511     }
 512
 513
 514     if ($bulkoperations) {
 515         echo '<form action="action_redir.php" method="post" id="participantsform">';
 516         echo '<div>';
 517         echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
 518         echo '<input type="hidden" name="returnto" value="'.s(me()).'" />';
 519     }
 520
 521     if ($mode === MODE_USERDETAILS) {    // Print simple listing
 522         if ($totalcount < 1) {
 523             echo $OUTPUT->heading(get_string('nothingtodisplay'));
 524         } else {
 525             if ($totalcount > $perpage) {
 526
 527                 $firstinitial = $table->get_initial_first();
 528                 $lastinitial  = $table->get_initial_last();
 529                 $strall = get_string('all');
 530                 $alpha  = explode(',', get_string('alphabet', 'langconfig'));
 531
 532                 // Bar of first initials
 533
 534                 echo '<div class="initialbar firstinitial">'.get_string('firstname').' : ';
 535                 if(!empty($firstinitial)) {
 536                     echo '<a href="'.$baseurl->out().'&amp;sifirst=">'.$strall.'</a>';
 537                 } else {
 538                     echo '<strong>'.$strall.'</strong>';
 539                 }
 540                 foreach ($alpha as $letter) {
 541                     if ($letter == $firstinitial) {
 542                         echo ' <strong>'.$letter.'</strong>';
 543                     } else {
 544                         echo ' <a href="'.$baseurl->out().'&amp;sifirst='.$letter.'">'.$letter.'</a>';
 545                     }
 546                 }
 547                 echo '</div>';
 548
 549                 // Bar of last initials
 550
 551                 echo '<div class="initialbar lastinitial">'.get_string('lastname').' : ';
 552                 if(!empty($lastinitial)) {
 553                     echo '<a href="'.$baseurl->out().'&amp;silast=">'.$strall.'</a>';
 554                 } else {
 555                     echo '<strong>'.$strall.'</strong>';
 556                 }
 557                 foreach ($alpha as $letter) {
 558                     if ($letter == $lastinitial) {
 559                         echo ' <strong>'.$letter.'</strong>';
 560                     } else {
 561                         echo ' <a href="'.$baseurl->out().'&amp;silast='.$letter.'">'.$letter.'</a>';
 562                     }
 563                 }
 564                 echo '</div>';
 565
 566                 $pagingbar = new paging_bar($matchcount, intval($table->get_page_start() / $perpage), $perpage, $baseurl);
 567                 $pagingbar->pagevar = 'spage';
 568                 echo $OUTPUT->render($pagingbar);
 569             }
 570
 571             if ($matchcount > 0) {
 572                 $usersprinted = array();
 573                 foreach ($userlist as $user) {
 574                     if (in_array($user->id, $usersprinted)) { /// Prevent duplicates by r.hidden - MDL-13935
 575                         continue;
 576                     }
 577                     $usersprinted[] = $user->id; /// Add new user to the array of users printed
 578
 579                     context_instance_preload($user);
 580
 581                     $context = get_context_instance(CONTEXT_COURSE, $course->id);
 582                     $usercontext = get_context_instance(CONTEXT_USER, $user->id);
 583
 584                     $countries = get_string_manager()->get_list_of_countries();
 585
 586                     /// Get the hidden field list
 587                     if (has_capability('moodle/course:viewhiddenuserfields', $context)) {
 588                         $hiddenfields = array();
 589                     } else {
 590                         $hiddenfields = array_flip(explode(',', $CFG->hiddenuserfields));
 591                     }
 592                     $table = new html_table();
 593                     $table->attributes['class'] = 'userinfobox';
 594
 595                     $row = new html_table_row();
 596                     $row->cells[0] = new html_table_cell();
 597                     $row->cells[0]->attributes['class'] = 'left side';
 598
 599                     $row->cells[0]->text = $OUTPUT->user_picture($user, array('size' => 100, 'courseid'=>$course->id));
 600                     $row->cells[1] = new html_table_cell();
 601                     $row->cells[1]->attributes['class'] = 'content';
 602
 603                     $row->cells[1]->text = $OUTPUT->container(fullname($user, has_capability('moodle/site:viewfullnames', $context)), 'username');
 604                     $row->cells[1]->text .= $OUTPUT->container_start('info');
 605
 606                     if (!empty($user->role)) {
 607                         $row->cells[1]->text .= get_string('role').get_string('labelsep', 'langconfig').$user->role.'<br />';
 608                     }
 609                     if ($user->maildisplay == 1 or ($user->maildisplay == 2 and ($course->id != SITEID) and !isguestuser()) or
 610                                 has_capability('moodle/course:viewhiddenuserfields', $context)) {
 611                         $row->cells[1]->text .= get_string('email').get_string('labelsep', 'langconfig').html_writer::link("mailto:$user->email", $user->email) . '<br />';
 612                     }
 613                     if (($user->city or $user->country) and (!isset($hiddenfields['city']) or !isset($hiddenfields['country']))) {
 614                         $row->cells[1]->text .= get_string('city').get_string('labelsep', 'langconfig');
 615                         if ($user->city && !isset($hiddenfields['city'])) {
 616                             $row->cells[1]->text .= $user->city;
 617                         }
 618                         if (!empty($countries[$user->country]) && !isset($hiddenfields['country'])) {
 619                             if ($user->city && !isset($hiddenfields['city'])) {
 620                                 $row->cells[1]->text .= ', ';
 621                             }
 622                             $row->cells[1]->text .= $countries[$user->country];
 623                         }
 624                         $row->cells[1]->text .= '<br />';
 625                     }
 626
 627                     if (!isset($hiddenfields['lastaccess'])) {
 628                         if ($user->lastaccess) {
 629                             $row->cells[1]->text .= get_string('lastaccess').get_string('labelsep', 'langconfig').userdate($user->lastaccess);
 630                             $row->cells[1]->text .= '&nbsp; ('. format_time(time() - $user->lastaccess, $datestring) .')';
 631                         } else {
 632                             $row->cells[1]->text .= get_string('lastaccess').get_string('labelsep', 'langconfig').get_string('never');
 633                         }
 634                     }
 635
 636                     $row->cells[1]->text .= $OUTPUT->container_end();
 637
 638                     $row->cells[2] = new html_table_cell();
 639                     $row->cells[2]->attributes['class'] = 'links';
 640                     $row->cells[2]->text = '';
 641
 642                     $links = array();
 643
 644                     if ($CFG->bloglevel > 0) {
 645                         $links[] = html_writer::link(new moodle_url('/blog/index.php?userid='.$user->id), get_string('blogs','blog'));
 646                     }
 647
 648                     if (!empty($CFG->enablenotes) and (has_capability('moodle/notes:manage', $context) || has_capability('moodle/notes:view', $context))) {
 649                         $links[] = html_writer::link(new moodle_url('/notes/index.php?course=' . $course->id. '&user='.$user->id), get_string('notes','notes'));
 650                     }
 651
 652                     if (has_capability('moodle/site:viewreports', $context) or has_capability('moodle/user:viewuseractivitiesreport', $usercontext)) {
 653                         $links[] = html_writer::link(new moodle_url('/course/user.php?id='. $course->id .'&user='. $user->id), get_string('activity'));
 654                     }
 655
 656                     if ($USER->id != $user->id && !session_is_loggedinas() && has_capability('moodle/user:loginas', $context) && !is_siteadmin($user->id)) {
 657                         $links[] = html_writer::link(new moodle_url('/course/loginas.php?id='. $course->id .'&user='. $user->id .'&sesskey='. sesskey()), get_string('loginas'));
 658                     }
 659
 660                     $links[] = html_writer::link(new moodle_url('/user/view.php?id='. $user->id .'&course='. $course->id), get_string('fullprofile') . '...');
 661
 662                     $row->cells[2]->text .= implode('', $links);
 663
 664                     if (!empty($messageselect)) {
 665                         $row->cells[2]->text .= '<br /><input type="checkbox" name="user'.$user->id.'" /> ';
 666                     }
 667                     $table->data = array($row);
 668                     echo html_writer::table($table);
 669                 }
 670
 671             } else {
 672                 echo $OUTPUT->heading(get_string('nothingtodisplay'));
 673             }
 674         }
 675
 676     } else {
 677         $countrysort = (strpos($sort, 'country') !== false);
 678         $timeformat = get_string('strftimedate');
 679
 680
 681         if ($userlist)  {
 682
 683             $usersprinted = array();
 684             foreach ($userlist as $user) {
 685                 if (in_array($user->id, $usersprinted)) { /// Prevent duplicates by r.hidden - MDL-13935
 686                     continue;
 687                 }
 688                 $usersprinted[] = $user->id; /// Add new user to the array of users printed
 689
 690                 context_instance_preload($user);
 691
 692                 if ($user->lastaccess) {
 693                     $lastaccess = format_time(time() - $user->lastaccess, $datestring);
 694                 } else {
 695                     $lastaccess = $strnever;
 696                 }
 697
 698                 if (empty($user->country)) {
 699                     $country = '';
 700
 701                 } else {
 702                     if($countrysort) {
 703                         $country = '('.$user->country.') '.$countries[$user->country];
 704                     }
 705                     else {
 706                         $country = $countries[$user->country];
 707                     }
 708                 }
 709
 710                 $usercontext = get_context_instance(CONTEXT_USER, $user->id);
 711
 712                 if ($piclink = ($USER->id == $user->id || has_capability('moodle/user:viewdetails', $context) || has_capability('moodle/user:viewdetails', $usercontext))) {
 713                     $profilelink = '<strong><a href="'.$CFG->wwwroot.'/user/view.php?id='.$user->id.'&amp;course='.$course->id.'">'.fullname($user).'</a></strong>';
 714                 } else {
 715                     $profilelink = '<strong>'.fullname($user).'</strong>';
 716                 }
 717
 718                 $data = array ($OUTPUT->user_picture($user, array('size' => 35, 'courseid'=>$course->id)), $profilelink);
 719
 720                 if ($mode === MODE_BRIEF && !isset($hiddenfields['city'])) {
 721                     $data[] = $user->city;
 722                 }
 723                 if ($mode === MODE_BRIEF && !isset($hiddenfields['country'])) {
 724                     $data[] = $country;
 725                 }
 726                 if (!isset($hiddenfields['lastaccess'])) {
 727                     $data[] = $lastaccess;
 728                 }
 729
 730                 if (isset($userlist_extra) && isset($userlist_extra[$user->id])) {
 731                     $ras = $userlist_extra[$user->id]['ra'];
 732                     $rastring = '';
 733                     foreach ($ras AS $key=>$ra) {
 734                         $rolename = $allrolenames[$ra['roleid']] ;
 735                         if ($ra['ctxlevel'] == CONTEXT_COURSECAT) {
 736                             $rastring .= $rolename. ' @ ' . '<a href="'.$CFG->wwwroot.'/course/category.php?id='.$ra['ctxinstanceid'].'">'.s($ra['ccname']).'</a>';
 737                         } elseif ($ra['ctxlevel'] == CONTEXT_SYSTEM) {
 738                             $rastring .= $rolename. ' - ' . get_string('globalrole','role');
 739                         } else {
 740                             $rastring .= $rolename;
 741                         }
 742                     }
 743                     $data[] = $rastring;
 744                     if ($groupmode != 0) {
 745                         // htmlescape with s() and implode the array
 746                         $data[] = implode(', ', array_map('s',$userlist_extra[$user->id]['group']));
 747                         $data[] = implode(', ', array_map('s', $userlist_extra[$user->id]['gping']));
 748                     }
 749                 }
 750
 751                 if ($bulkoperations) {
 752                     $data[] = '<input type="checkbox" class="usercheckbox" name="user'.$user->id.'" />';
 753                 }
 754                 $table->add_data($data);
 755
 756             }
 757         }
 758
 759         $table->print_html();
 760
 761     }
 762
 763     if ($bulkoperations) {
 764         echo '<br /><div class="buttons">';
 765         echo '<input type="button" id="checkall" value="'.get_string('selectall').'" /> ';
 766         echo '<input type="button" id="checknone" value="'.get_string('deselectall').'" /> ';
 767         $displaylist = array();
 768         $displaylist['messageselect.php'] = get_string('messageselectadd');
 769         if (!empty($CFG->enablenotes) && has_capability('moodle/notes:manage', $context) && $context->id != $frontpagectx->id) {
 770             $displaylist['addnote.php'] = get_string('addnewnote', 'notes');
 771             $displaylist['groupaddnote.php'] = get_string('groupaddnewnote', 'notes');
 772         }
 773
 774         echo $OUTPUT->help_icon('withselectedusers');
 775         echo html_writer::tag('label', get_string("withselectedusers"), array('for'=>'formactionid'));
 776         echo html_writer::select($displaylist, 'formaction', '', array(''=>'choosedots'), array('id'=>'formactionid'));
 777
 778         echo '<input type="hidden" name="id" value="'.$course->id.'" />';
 779         echo '<noscript style="display:inline">';
 780         echo '<div><input type="submit" value="'.get_string('ok').'" /></div>';
 781         echo '</noscript>';
 782         echo '</div></div>';
 783         echo '</form>';
 784
 785         $module = array('name'=>'core_user', 'fullpath'=>'/user/module.js');
 786         $PAGE->requires->js_init_call('M.core_user.init_participation', null, false, $module);
 787     }
 788
 789     if (has_capability('moodle/site:viewparticipants', $context) && $totalcount > ($perpage*3)) {
 790         echo '<form action="index.php" class="searchform"><div><input type="hidden" name="id" value="'.$course->id.'" />'.get_string('search').':&nbsp;'."\n";
 791         echo '<input type="text" name="search" value="'.s($search).'" />&nbsp;<input type="submit" value="'.get_string('search').'" /></div></form>'."\n";
 792     }
 793
 794     $perpageurl = clone($baseurl);
 795     $perpageurl->remove_params('perpage');
 796     if ($perpage == SHOW_ALL_PAGE_SIZE) {
 797         $perpageurl->param('perpage', DEFAULT_PAGE_SIZE);
 798         echo $OUTPUT->container(html_writer::link($perpageurl, get_string('showperpage', '', DEFAULT_PAGE_SIZE)), array(), 'showall');
 799
 800     } else if ($matchcount > 0 && $perpage < $matchcount) {
 801         $perpageurl->param('perpage', SHOW_ALL_PAGE_SIZE);
 802         echo $OUTPUT->container(html_writer::link($perpageurl, get_string('showall', '', $matchcount)), array(), 'showall');
 803     }
 804
 805     echo '</div>';  // userlist
 806
 807     echo $OUTPUT->footer();
 808
 809     if ($userlist) {
 810         $userlist->close();
 811     }
 812
 813
 814 function get_course_lastaccess_sql($accesssince='') {
 815     if (empty($accesssince)) {
 816         return '';
 817     }
 818     if ($accesssince == -1) { // never
 819         return 'ul.timeaccess = 0';
 820     } else {
 821         return 'ul.timeaccess != 0 AND ul.timeaccess < '.$accesssince;
 822     }
 823 }
 824
 825 function get_user_lastaccess_sql($accesssince='') {
 826     if (empty($accesssince)) {
 827         return '';
 828     }
 829     if ($accesssince == -1) { // never
 830         return 'u.lastaccess = 0';
 831     } else {
 832         return 'u.lastaccess != 0 AND u.lastaccess < '.$accesssince;
 833     }
 834 }