user/index.php

   1 <?PHP // $Id$
   2
   3 //  Lists all the users within a given course
   4
   5     require_once('../config.php');
   6     require_once($CFG->libdir.'/tablelib.php');
   7
   8     define('USER_SMALL_CLASS', 20);   // Below this is considered small
   9     define('USER_LARGE_CLASS', 200);  // Above this is considered large
  10     define('DEFAULT_PAGE_SIZE', 20);
  11
  12     $id           = required_param('id', PARAM_INT);                          // Course id
  13     $group        = optional_param('group', -1, PARAM_INT);                   // Group to show
  14     $page         = optional_param('page', 0, PARAM_INT);                     // which page to show
  15     $perpage      = optional_param('perpage', DEFAULT_PAGE_SIZE, PARAM_INT);  // how many per page
  16     $mode         = optional_param('mode', NULL);                             // '0' for less details, '1' for more
  17     $showteachers = optional_param('teachers', 1, PARAM_INT);                 // do we want to see the teacher list?
  18
  19     if (! $course = get_record('course', 'id', $id)) {
  20         error("Course ID is incorrect");
  21     }
  22
  23     require_login($course->id);
  24
  25     if (!$course->category) {
  26         if (!$CFG->showsiteparticipantslist and !isteacher(SITEID)) {
  27             notice(get_string('sitepartlist0'));
  28         }
  29         if ($CFG->showsiteparticipantslist < 2 and !isteacherinanycourse()) {
  30             notice(get_string('sitepartlist1'));
  31         }
  32     }
  33
  34     add_to_log($course->id, 'user', 'view all', 'index.php?id='.$course->id, '');
  35
  36     $isteacher = isteacher($course->id);
  37
  38     $countries = get_list_of_countries();
  39
  40     $strnever = get_string('never');
  41
  42     $datestring->day   = get_string('day');
  43     $datestring->days  = get_string('days');
  44     $datestring->hour  = get_string('hour');
  45     $datestring->hours = get_string('hours');
  46     $datestring->min   = get_string('min');
  47     $datestring->mins  = get_string('mins');
  48     $datestring->sec   = get_string('sec');
  49     $datestring->secs  = get_string('secs');
  50
  51     if ($mode !== NULL) {
  52         $SESSION->userindexmode = $fullmode = ($mode == 1);
  53     } else if (isset($SESSION->userindexmode)) {
  54         $fullmode = $SESSION->userindexmode;
  55     } else {
  56         $fullmode = false;
  57     }
  58
  59 /// Check to see if groups are being used in this forum
  60 /// and if so, set $currentgroup to reflect the current group
  61
  62     $groupmode    = groupmode($course);   // Groups are being used
  63     $currentgroup = get_and_set_current_group($course, $groupmode, $group);
  64
  65     if (!$currentgroup) {      // To make some other functions work better later
  66         $currentgroup  = NULL;
  67     }
  68
  69     $isseparategroups = ($course->groupmode == SEPARATEGROUPS and $course->groupmodeforce and
  70                          !isteacheredit($course->id));
  71
  72     if ($isseparategroups and (!$currentgroup) ) {  //XXX
  73         print_heading(get_string("notingroup", "forum"));
  74         print_footer($course);
  75         exit;
  76     }
  77
  78     // Should use this variable so that we don't break stuff every time a variable is added or changed.
  79     $baseurl = $CFG->wwwroot.'/user/index.php?id='.$course->id.'&amp;group='.$currentgroup.'&amp;perpage='.$perpage.'&amp;teachers='.$showteachers;
  80
  81 /// Print headers
  82
  83     if ($course->category) {
  84         print_header("$course->shortname: ".get_string('participants'), $course->fullname,
  85                      "<a href=\"../course/view.php?id=$course->id\">$course->shortname</a> -> ".
  86                      get_string('participants'), "", "", true, "&nbsp;", navmenu($course));
  87     } else {
  88         print_header("$course->shortname: ".get_string('participants'), $course->fullname,
  89                      get_string('participants'), "", "", true, "&nbsp;", navmenu($course));
  90     }
  91
  92 /// Print settings and things in a table across the top
  93
  94     echo '<table class="controls" cellspacing="0"><tr>';
  95
  96     if ($groupmode == VISIBLEGROUPS or ($groupmode and isteacheredit($course->id))) {
  97         if ($groups = get_records_menu("groups", "courseid", $course->id, "name ASC", "id,name")) {
  98             echo '<td class="left">';
  99             print_group_menu($groups, $groupmode, $currentgroup, $baseurl);
 100             echo '</td>';
 101         }
 102     }
 103
 104     echo '<td class="right">';
 105     echo get_string('userlist').': ';
 106     $formatmenu = array( '0' => get_string('detailedless'),
 107                          '1' => get_string('detailedmore'));
 108     echo popup_form($baseurl.'&amp;mode=', $formatmenu, 'formatmenu', $fullmode, '', '', '', true);
 109     echo '</td></tr></table>';
 110
 111     if ($currentgroup and (!$isseparategroups or isteacheredit($course->id))) {    /// Display info about the group
 112         if ($group = get_record('groups', 'id', $currentgroup)) {
 113             if (!empty($group->description) or (!empty($group->picture) and empty($group->hidepicture))) {
 114                 echo '<table class="groupinfobox"><tr><td class="left side picture">';
 115                 print_group_picture($group, $course->id, true, false, false);
 116                 echo '</td><td class="content">';
 117                 echo '<h3>'.$group->name;
 118                 if (isteacheredit($course->id)) {
 119                     echo '&nbsp;<a title="'.get_string('editgroupprofile').'" href="../course/groups.php?id='.$course->id.'&amp;group='.$group->id.'">';
 120                     echo '<img src="'.$CFG->pixpath.'/t/edit.gif" alt="" border="0">';
 121                     echo '</a>';
 122                 }
 123                 echo '</h3>';
 124                 echo format_text($group->description);
 125                 echo '</td></tr></table>';
 126             }
 127         }
 128     }
 129
 130
 131     $exceptions = array(); // This will be an array of userids that are shown as teachers and thus
 132                            // do not have to be shown as users as well. Only relevant on site course.
 133
 134     if($showteachers) {
 135
 136         $tablecolumns = array('picture', 'fullname', 'city', 'country', 'lastaccess');
 137         $tableheaders = array('', get_string('fullname'), get_string('city'), get_string('country'), get_string('lastaccess'));
 138
 139         $table = new flexible_table('user-index-teachers');
 140
 141         $table->define_columns($tablecolumns);
 142         $table->define_headers($tableheaders);
 143         $table->define_baseurl($baseurl);
 144
 145         $table->sortable(true);
 146
 147         $table->set_attribute('cellspacing', '0');
 148         $table->set_attribute('id', 'teachers');
 149         $table->set_attribute('class', 'generaltable generalbox');
 150
 151         $table->setup();
 152
 153         if($whereclause = $table->get_sql_where()) {
 154             $whereclause .= ' AND ';
 155         }
 156
 157         $teachersql = "SELECT u.id, u.username, u.firstname, u.lastname, u.maildisplay, u.mailformat, u.maildigest,
 158                                    u.email, u.maildisplay, u.city, u.country, u.lastlogin, u.picture, u.lang, u.timezone,
 159                                    u.emailstop, t.authority,t.role,t.editall,t.timeaccess as lastaccess, m.groupid
 160                             FROM {$CFG->prefix}user u
 161                        LEFT JOIN {$CFG->prefix}user_teachers t ON t.userid = u.id
 162                        LEFT JOIN {$CFG->prefix}groups_members m ON m.userid = u.id ";
 163
 164         if($isseparategroups) {
 165             $whereclause .= '(t.editall OR groupid = '.$currentgroup.') AND ';
 166         }
 167         else if ($currentgroup) {    // Displaying a group by choice
 168             $whereclause .= 'groupid = '.$currentgroup.' AND ';
 169         }
 170
 171         $teachersql .= 'WHERE '.$whereclause.' t.course = '.$course->id.' AND u.deleted = 0 AND u.confirmed = 1 AND t.authority > 0';
 172
 173         if($sortclause = $table->get_sql_sort()) {
 174             $teachersql .= ' ORDER BY '.$sortclause;
 175         }
 176
 177         $teachers = get_records_sql($teachersql);
 178
 179         if(!empty($teachers)) {
 180
 181             echo '<h2>'.$course->teachers;
 182             echo ' <a href="'.$baseurl.'&amp;teachers=0">';
 183             echo '<img src="'.$CFG->pixpath.'/i/hide.gif" height="16" width="16" alt="'.get_string('hide').'" /></a>';
 184             if (isadmin() or ($course->category and (iscreator() or (isteacheredit($course->id) and !empty($CFG->teacherassignteachers))))) {
 185                 echo ' <a href="'.$CFG->wwwroot.'/course/teacher.php?id='.$course->id.'">';
 186                 echo '<img src="'.$CFG->pixpath.'/i/edit.gif" height="16" width="16" alt="'.get_string('edit').'" /></a>';
 187             }
 188             echo '</h2>';
 189
 190             $exceptions = array_keys($teachers);
 191
 192             if ($fullmode) {
 193                 foreach ($teachers as $key => $teacher) {
 194                     print_user($teacher, $course);
 195                 }
 196             } else {
 197                 $countrysort = (strpos($sortclause, 'country') !== false);
 198                 foreach ($teachers as $teacher) {
 199
 200                     if ($teacher->lastaccess) {
 201                         $lastaccess = format_time(time() - $teacher->lastaccess, $datestring);
 202                     } else {
 203                         $lastaccess = $strnever;
 204                     }
 205
 206                     if (empty($teacher->country)) {
 207                         $country = '';
 208                     }
 209                     else {
 210                         if($countrysort) {
 211                             $country = '('.$teacher->country.') '.$countries[$teacher->country];
 212                         }
 213                         else {
 214                             $country = $countries[$teacher->country];
 215                         }
 216                     }
 217
 218                     $table->add_data(array (
 219                                     //'<input type="checkbox" name="userid[]" value="'.$teacher->id.'" />',
 220                                     print_user_picture($teacher->id, $course->id, $teacher->picture, false, true),
 221                                     '<strong><a href="'.$CFG->wwwroot.'/user/view.php?id='.$teacher->id.'&amp;course='.$course->id.'">'.fullname($teacher, $isteacher).'</a></strong>',
 222                                     $teacher->city,
 223                                     $country,
 224                                     $lastaccess));
 225                 }
 226
 227                 $table->print_html();
 228             }
 229         }
 230     }
 231     else {
 232         // Don't show teachers
 233         echo '<h2>'.$course->teachers;
 234         echo ' <a href="'.$baseurl.'&amp;teachers=1">';
 235         echo '<img src="'.$CFG->pixpath.'/i/show.gif" height="16" width="16" alt="'.get_string('show').'" /></a>';
 236         if (isadmin() or ($course->category and (iscreator() or (isteacheredit($course->id) and !empty($CFG->teacherassignteachers))))) {
 237             echo ' <a href="'.$CFG->wwwroot.'/course/teacher.php?id='.$course->id.'">';
 238             echo '<img src="'.$CFG->pixpath.'/i/edit.gif" height="16" width="16" alt="'.get_string('edit').'" /></a>';
 239         }
 240         echo '</h2>';
 241     }
 242
 243     $guest = get_guest();
 244     $exceptions[] = $guest->id;
 245
 246     $tablecolumns = array('picture', 'fullname', 'city', 'country', 'lastaccess');
 247     $tableheaders = array('', get_string('fullname'), get_string('city'), get_string('country'), get_string('lastaccess'));
 248
 249     $table = new flexible_table('user-index-students');
 250
 251     $table->define_columns($tablecolumns);
 252     $table->define_headers($tableheaders);
 253     $table->define_baseurl($baseurl);
 254
 255     $table->sortable(true);
 256
 257     $table->set_attribute('cellspacing', '0');
 258     $table->set_attribute('id', 'students');
 259     $table->set_attribute('class', 'generaltable generalbox');
 260
 261     $table->set_control_variables(array(
 262         TABLE_VAR_SORT    => 'ssort',
 263         TABLE_VAR_HIDE    => 'shide',
 264         TABLE_VAR_SHOW    => 'sshow',
 265         TABLE_VAR_IFIRST  => 'sifirst',
 266         TABLE_VAR_ILAST   => 'silast',
 267         TABLE_VAR_PAGE    => 'spage'
 268     ));
 269     $table->setup();
 270
 271     if(SITEID == $course->id) {
 272         $select = 'SELECT u.id, u.username, u.firstname, u.lastname, u.email, u.city, u.country,
 273                       u.picture, u.lang, u.timezone, u.emailstop, u.maildisplay, u.lastaccess ';
 274         $from   = 'FROM '.$CFG->prefix.'user u ';
 275         $where  = 'WHERE confirmed = 1 AND u.deleted = 0 ';
 276     }
 277     else {
 278         $select = 'SELECT u.id, u.username, u.firstname, u.lastname, u.email, u.city, u.country,
 279                       u.picture, u.lang, u.timezone, u.emailstop, u.maildisplay, s.timeaccess AS lastaccess ';
 280         $from   = 'FROM '.$CFG->prefix.'user u LEFT JOIN '.$CFG->prefix.'user_students s ON s.userid = u.id ';
 281         $where  = 'WHERE s.course = '.$course->id.' AND u.deleted = 0 ';
 282     }
 283
 284     if ($currentgroup) {    // Displaying a group by choice
 285         // FIX: TODO: This will not work if $currentgroup == 0, i.e. "those not in a group"
 286         $from  .= 'LEFT JOIN '.$CFG->prefix.'groups_members gm ON u.id = gm.userid ';
 287         $where .= ' AND gm.groupid = '.$currentgroup;
 288     }
 289
 290     if($course->id == SITEID) {
 291         $where .= ' AND u.id NOT IN ('.implode(',', $exceptions).')';
 292     }
 293
 294     $totalcount = count_records_sql('SELECT COUNT(*) '.$from.$where);
 295
 296     if($table->get_sql_where()) {
 297         $where .= ' AND '.$table->get_sql_where();
 298     }
 299
 300     if($table->get_sql_sort()) {
 301         $sort = ' ORDER BY '.$table->get_sql_sort();
 302     }
 303     else {
 304         $sort = '';
 305     }
 306
 307     if($table->get_sql_sort()) {
 308         $sort = ' ORDER BY '.$table->get_sql_sort();
 309     }
 310     else {
 311         $sort = '';
 312     }
 313
 314     $matchcount = count_records_sql('SELECT COUNT(*) '.$from.$where);
 315
 316     $table->initialbars($totalcount > $perpage);
 317     $table->pagesize($perpage, $matchcount);
 318
 319     if($table->get_page_start() !== '' && $table->get_page_size() !== '') {
 320         $limit = ' '.sql_paging_limit($table->get_page_start(), $table->get_page_size());
 321     }
 322     else {
 323         $limit = '';
 324     }
 325
 326     $students = get_records_sql($select.$from.$where.$sort.$limit);
 327
 328     $a->count = $totalcount;
 329     $a->items = $totalcount == 1 ? $course->student : $course->students;
 330     echo '<h2>'.get_string('counteditems', '', $a);
 331     if (isteacheredit($course->id)) {
 332         echo ' <a href="../course/student.php?id='.$course->id.'">';
 333         echo '<img src="'.$CFG->pixpath.'/i/edit.gif" height="16" width="16" alt="" /></a>';
 334     }
 335     echo '</h2>';
 336
 337     if ($CFG->longtimenosee > 0 && $CFG->longtimenosee < 1000 && $totalcount > 0) {
 338         echo '<p id="longtimenosee">('.get_string('unusedaccounts', '', $CFG->longtimenosee).')</p>';
 339     }
 340
 341     if ($fullmode) {    // Print simple listing
 342         if ($totalcount < 1) {
 343             print_heading(get_string("nostudentsfound", "", $course->students));
 344         }
 345         else {
 346
 347             if($totalcount > $perpage) {
 348
 349                 $firstinitial = $table->get_initial_first();
 350                 $lastinitial  = $table->get_initial_last();
 351                 $strall = get_string('all');
 352                 $alpha  = explode(',', get_string('alphabet'));
 353
 354                 // Bar of first initials
 355
 356                 echo '<div class="initialbar firstinitial">'.get_string('firstname').' : ';
 357                 if(!empty($firstinitial)) {
 358                     echo '<a href="'.$baseurl.'&amp;sifirst=">'.$strall.'</a>';
 359                 } else {
 360                     echo '<strong>'.$strall.'</strong>';
 361                 }
 362                 foreach ($alpha as $letter) {
 363                     if ($letter == $firstinitial) {
 364                         echo ' <strong>'.$letter.'</strong>';
 365                     } else {
 366                         echo ' <a href="'.$baseurl.'&amp;sifirst='.$letter.'">'.$letter.'</a>';
 367                     }
 368                 }
 369                 echo '</div>';
 370
 371                 // Bar of last initials
 372
 373                 echo '<div class="initialbar lastinitial">'.get_string('lastname').' : ';
 374                 if(!empty($lastinitial)) {
 375                     echo '<a href="'.$baseurl.'&amp;silast=">'.$strall.'</a>';
 376                 } else {
 377                     echo '<strong>'.$strall.'</strong>';
 378                 }
 379                 foreach ($alpha as $letter) {
 380                     if ($letter == $lastinitial) {
 381                         echo ' <strong>'.$letter.'</strong>';
 382                     } else {
 383                         echo ' <a href="'.$baseurl.'&amp;silast='.$letter.'">'.$letter.'</a>';
 384                     }
 385                 }
 386                 echo '</div>';
 387
 388                 print_paging_bar($matchcount, intval($table->get_page_start() / $perpage), $perpage, $baseurl.'&amp;', 'spage');
 389
 390             }
 391
 392             if($matchcount > 0) {
 393                 foreach ($students as $student) {
 394                     print_user($student, $course);
 395                 }
 396             }
 397             else {
 398                 print_heading(get_string('nothingtodisplay'));
 399             }
 400         }
 401     }
 402     else {
 403         $countrysort = (strpos($sort, 'country') !== false);
 404         if (!empty($students))  {
 405             foreach ($students as $student) {
 406                 if ($student->lastaccess) {
 407                     $lastaccess = format_time(time() - $student->lastaccess, $datestring);
 408                 } else {
 409                     $lastaccess = $strnever;
 410                 }
 411
 412                 if (empty($student->country)) {
 413                     $country = '';
 414                 }
 415                 else {
 416                     if($countrysort) {
 417                         $country = '('.$student->country.') '.$countries[$student->country];
 418                     }
 419                     else {
 420                         $country = $countries[$student->country];
 421                     }
 422                 }
 423
 424                 $table->add_data(array (
 425                         //'<input type="checkbox" name="userid[]" value="'.$teacher->id.'" />',
 426                         print_user_picture($student->id, $course->id, $student->picture, false, true),
 427                         '<strong><a href="'.$CFG->wwwroot.'/user/view.php?id='.$student->id.'&amp;course='.$course->id.'">'.fullname($student).'</a></strong>',
 428                         $student->city,
 429                         $country,
 430                         $lastaccess));
 431             }
 432         }
 433
 434         $table->print_html();
 435
 436     }
 437
 438     if ($perpage == 99999) {
 439         echo '<div id="showall"><a href="'.$baseurl.'&amp;perpage='.DEFAULT_PAGE_SIZE.'">'.get_string('showperpage', '', DEFAULT_PAGE_SIZE).'</a></div>';
 440     }
 441     else if ($matchcount > 0 && $perpage < $matchcount) {
 442         echo '<div id="showall"><a href="'.$baseurl.'&amp;perpage=99999">'.get_string('showall', '', $matchcount).'</a></div>';
 443     }
 444
 445     print_footer($course);
 446
 447 ?>