[Summary view]

Differences Between: [Versions 310 and 311] [Versions 310 and 400] [Versions 310 and 401] [Versions 310 and 402] [Versions 310 and 403]

   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   * Core Report class of objectives SCORM report plugin
  18   * @package   scormreport_objectives
  19   * @author    Dan Marsden <dan@danmarsden.com>
  20   * @copyright 2013 Dan Marsden
  21   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  22   */
  23  
  24  namespace scormreport_objectives;
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  require_once($CFG->dirroot.'/mod/scorm/report/objectives/responsessettings_form.php');
  29  
  30  /**
  31   * Objectives report class
  32   *
  33   * @copyright  2013 Dan Marsden
  34   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35   */
  36  class report extends \mod_scorm\report {
  37      /**
  38       * displays the full report
  39       * @param \stdClass $scorm full SCORM object
  40       * @param \stdClass $cm - full course_module object
  41       * @param \stdClass $course - full course object
  42       * @param string $download - type of download being requested
  43       */
  44      public function display($scorm, $cm, $course, $download) {
  45          global $CFG, $DB, $OUTPUT, $PAGE;
  46  
  47          $contextmodule = \context_module::instance($cm->id);
  48          $action = optional_param('action', '', PARAM_ALPHA);
  49          $attemptids = optional_param_array('attemptid', array(), PARAM_RAW);
  50          $attemptsmode = optional_param('attemptsmode', SCORM_REPORT_ATTEMPTS_ALL_STUDENTS, PARAM_INT);
  51          $PAGE->set_url(new \moodle_url($PAGE->url, array('attemptsmode' => $attemptsmode)));
  52  
  53          if ($action == 'delete' && has_capability('mod/scorm:deleteresponses', $contextmodule) && confirm_sesskey()) {
  54              if (scorm_delete_responses($attemptids, $scorm)) { // Delete responses.
  55                  echo $OUTPUT->notification(get_string('scormresponsedeleted', 'scorm'), 'notifysuccess');
  56              }
  57          }
  58          // Find out current groups mode.
  59          $currentgroup = groups_get_activity_group($cm, true);
  60  
  61          // Detailed report.
  62          $mform = new \mod_scorm_report_objectives_settings($PAGE->url, compact('currentgroup'));
  63          if ($fromform = $mform->get_data()) {
  64              $pagesize = $fromform->pagesize;
  65              $showobjectivescore = $fromform->objectivescore;
  66              set_user_preference('scorm_report_pagesize', $pagesize);
  67              set_user_preference('scorm_report_objectives_score', $showobjectivescore);
  68          } else {
  69              $pagesize = get_user_preferences('scorm_report_pagesize', 0);
  70              $showobjectivescore = get_user_preferences('scorm_report_objectives_score', 0);
  71          }
  72          if ($pagesize < 1) {
  73              $pagesize = SCORM_REPORT_DEFAULT_PAGE_SIZE;
  74          }
  75  
  76          // Select group menu.
  77          $displayoptions = array();
  78          $displayoptions['attemptsmode'] = $attemptsmode;
  79          $displayoptions['objectivescore'] = $showobjectivescore;
  80  
  81          $mform->set_data($displayoptions + array('pagesize' => $pagesize));
  82          if ($groupmode = groups_get_activity_groupmode($cm)) {   // Groups are being used.
  83              if (!$download) {
  84                  groups_print_activity_menu($cm, new \moodle_url($PAGE->url, $displayoptions));
  85              }
  86          }
  87          $formattextoptions = array('context' => \context_course::instance($course->id));
  88  
  89          // We only want to show the checkbox to delete attempts
  90          // if the user has permissions and if the report mode is showing attempts.
  91          $candelete = has_capability('mod/scorm:deleteresponses', $contextmodule)
  92                  && ($attemptsmode != SCORM_REPORT_ATTEMPTS_STUDENTS_WITH_NO);
  93          // Select the students.
  94          $nostudents = false;
  95          list($allowedlistsql, $params) = get_enrolled_sql($contextmodule, 'mod/scorm:savetrack', (int) $currentgroup);
  96          if (empty($currentgroup)) {
  97              // All users who can attempt scoes.
  98              if (!$DB->record_exists_sql($allowedlistsql, $params)) {
  99                  echo $OUTPUT->notification(get_string('nostudentsyet'));
 100                  $nostudents = true;
 101              }
 102          } else {
 103              // All users who can attempt scoes and who are in the currently selected group.
 104              if (!$DB->record_exists_sql($allowedlistsql, $params)) {
 105                  echo $OUTPUT->notification(get_string('nostudentsingroup'));
 106                  $nostudents = true;
 107              }
 108          }
 109          if ( !$nostudents ) {
 110              // Now check if asked download of data.
 111              $coursecontext = \context_course::instance($course->id);
 112              if ($download) {
 113                  $filename = clean_filename("$course->shortname ".format_string($scorm->name, true, $formattextoptions));
 114              }
 115  
 116              // Define table columns.
 117              $columns = array();
 118              $headers = array();
 119              if (!$download && $candelete) {
 120                  $columns[] = 'checkbox';
 121                  $headers[] = $this->generate_master_checkbox();
 122              }
 123              if (!$download && $CFG->grade_report_showuserimage) {
 124                  $columns[] = 'picture';
 125                  $headers[] = '';
 126              }
 127              $columns[] = 'fullname';
 128              $headers[] = get_string('name');
 129  
 130              $extrafields = get_extra_user_fields($coursecontext);
 131              foreach ($extrafields as $field) {
 132                  $columns[] = $field;
 133                  $headers[] = get_user_field_name($field);
 134              }
 135              $columns[] = 'attempt';
 136              $headers[] = get_string('attempt', 'scorm');
 137              $columns[] = 'start';
 138              $headers[] = get_string('started', 'scorm');
 139              $columns[] = 'finish';
 140              $headers[] = get_string('last', 'scorm');
 141              $columns[] = 'score';
 142              $headers[] = get_string('score', 'scorm');
 143              $scoes = $DB->get_records('scorm_scoes', array("scorm" => $scorm->id), 'sortorder, id');
 144              foreach ($scoes as $sco) {
 145                  if ($sco->launch != '') {
 146                      $columns[] = 'scograde'.$sco->id;
 147                      $headers[] = format_string($sco->title, '', $formattextoptions);
 148                  }
 149              }
 150  
 151              // Construct the SQL.
 152              $select = 'SELECT DISTINCT '.$DB->sql_concat('u.id', '\'#\'', 'COALESCE(st.attempt, 0)').' AS uniqueid, ';
 153              $select .= 'st.scormid AS scormid, st.attempt AS attempt, ' .
 154                      \user_picture::fields('u', array('idnumber'), 'userid') .
 155                      get_extra_user_fields_sql($coursecontext, 'u', '', array('email', 'idnumber')) . ' ';
 156  
 157              // This part is the same for all cases - join users and scorm_scoes_track tables.
 158              $from = 'FROM {user} u ';
 159              $from .= 'LEFT JOIN {scorm_scoes_track} st ON st.userid = u.id AND st.scormid = '.$scorm->id;
 160              switch ($attemptsmode) {
 161                  case SCORM_REPORT_ATTEMPTS_STUDENTS_WITH:
 162                      // Show only students with attempts.
 163                      $where = " WHERE u.id IN ({$allowedlistsql}) AND st.userid IS NOT NULL";
 164                      break;
 165                  case SCORM_REPORT_ATTEMPTS_STUDENTS_WITH_NO:
 166                      // Show only students without attempts.
 167                      $where = " WHERE u.id IN ({$allowedlistsql}) AND st.userid IS NULL";
 168                      break;
 169                  case SCORM_REPORT_ATTEMPTS_ALL_STUDENTS:
 170                      // Show all students with or without attempts.
 171                      $where = " WHERE u.id IN ({$allowedlistsql}) AND (st.userid IS NOT NULL OR st.userid IS NULL)";
 172                      break;
 173              }
 174  
 175              $countsql = 'SELECT COUNT(DISTINCT('.$DB->sql_concat('u.id', '\'#\'', 'COALESCE(st.attempt, 0)').')) AS nbresults, ';
 176              $countsql .= 'COUNT(DISTINCT('.$DB->sql_concat('u.id', '\'#\'', 'st.attempt').')) AS nbattempts, ';
 177              $countsql .= 'COUNT(DISTINCT(u.id)) AS nbusers ';
 178              $countsql .= $from.$where;
 179  
 180              $nbmaincolumns = count($columns); // Get number of main columns used.
 181  
 182              $objectives = get_scorm_objectives($scorm->id);
 183              $nosort = array();
 184              foreach ($objectives as $scoid => $sco) {
 185                  foreach ($sco as $id => $objectivename) {
 186                      $colid = $scoid.'objectivestatus' . $id;
 187                      $columns[] = $colid;
 188                      $nosort[] = $colid;
 189  
 190                      if (!$displayoptions['objectivescore']) {
 191                          // Display the objective name only.
 192                          $headers[] = $objectivename;
 193                      } else {
 194                          // Display the objective status header with a "status" suffix to avoid confusion.
 195                          $headers[] = $objectivename. ' '. get_string('status', 'scormreport_objectives');
 196  
 197                          // Now print objective score headers.
 198                          $colid = $scoid.'objectivescore' . $id;
 199                          $columns[] = $colid;
 200                          $nosort[] = $colid;
 201                          $headers[] = $objectivename. ' '. get_string('score', 'scormreport_objectives');
 202                      }
 203                  }
 204              }
 205  
 206              $emptycell = ''; // Used when an empty cell is being printed - in html we add a space.
 207              if (!$download) {
 208                  $emptycell = '&nbsp;';
 209                  $table = new \flexible_table('mod-scorm-report');
 210  
 211                  $table->define_columns($columns);
 212                  $table->define_headers($headers);
 213                  $table->define_baseurl($PAGE->url);
 214  
 215                  $table->sortable(true);
 216                  $table->collapsible(true);
 217  
 218                  // This is done to prevent redundant data, when a user has multiple attempts.
 219                  $table->column_suppress('picture');
 220                  $table->column_suppress('fullname');
 221                  foreach ($extrafields as $field) {
 222                      $table->column_suppress($field);
 223                  }
 224                  foreach ($nosort as $field) {
 225                      $table->no_sorting($field);
 226                  }
 227  
 228                  $table->no_sorting('start');
 229                  $table->no_sorting('finish');
 230                  $table->no_sorting('score');
 231                  $table->no_sorting('checkbox');
 232                  $table->no_sorting('picture');
 233  
 234                  foreach ($scoes as $sco) {
 235                      if ($sco->launch != '') {
 236                          $table->no_sorting('scograde'.$sco->id);
 237                      }
 238                  }
 239  
 240                  $table->column_class('picture', 'picture');
 241                  $table->column_class('fullname', 'bold');
 242                  $table->column_class('score', 'bold');
 243  
 244                  $table->set_attribute('cellspacing', '0');
 245                  $table->set_attribute('id', 'attempts');
 246                  $table->set_attribute('class', 'generaltable generalbox');
 247  
 248                  // Start working -- this is necessary as soon as the niceties are over.
 249                  $table->setup();
 250              } else if ($download == 'ODS') {
 251                  require_once("$CFG->libdir/odslib.class.php");
 252  
 253                  $filename .= ".ods";
 254                  // Creating a workbook.
 255                  $workbook = new \MoodleODSWorkbook("-");
 256                  // Sending HTTP headers.
 257                  $workbook->send($filename);
 258                  // Creating the first worksheet.
 259                  $sheettitle = get_string('report', 'scorm');
 260                  $myxls = $workbook->add_worksheet($sheettitle);
 261                  // Format types.
 262                  $format = $workbook->add_format();
 263                  $format->set_bold(0);
 264                  $formatbc = $workbook->add_format();
 265                  $formatbc->set_bold(1);
 266                  $formatbc->set_align('center');
 267                  $formatb = $workbook->add_format();
 268                  $formatb->set_bold(1);
 269                  $formaty = $workbook->add_format();
 270                  $formaty->set_bg_color('yellow');
 271                  $formatc = $workbook->add_format();
 272                  $formatc->set_align('center');
 273                  $formatr = $workbook->add_format();
 274                  $formatr->set_bold(1);
 275                  $formatr->set_color('red');
 276                  $formatr->set_align('center');
 277                  $formatg = $workbook->add_format();
 278                  $formatg->set_bold(1);
 279                  $formatg->set_color('green');
 280                  $formatg->set_align('center');
 281                  // Here starts workshhet headers.
 282  
 283                  $colnum = 0;
 284                  foreach ($headers as $item) {
 285                      $myxls->write(0, $colnum, $item, $formatbc);
 286                      $colnum++;
 287                  }
 288                  $rownum = 1;
 289              } else if ($download == 'Excel') {
 290                  require_once("$CFG->libdir/excellib.class.php");
 291  
 292                  $filename .= ".xls";
 293                  // Creating a workbook.
 294                  $workbook = new \MoodleExcelWorkbook("-");
 295                  // Sending HTTP headers.
 296                  $workbook->send($filename);
 297                  // Creating the first worksheet.
 298                  $sheettitle = get_string('report', 'scorm');
 299                  $myxls = $workbook->add_worksheet($sheettitle);
 300                  // Format types.
 301                  $format = $workbook->add_format();
 302                  $format->set_bold(0);
 303                  $formatbc = $workbook->add_format();
 304                  $formatbc->set_bold(1);
 305                  $formatbc->set_align('center');
 306                  $formatb = $workbook->add_format();
 307                  $formatb->set_bold(1);
 308                  $formaty = $workbook->add_format();
 309                  $formaty->set_bg_color('yellow');
 310                  $formatc = $workbook->add_format();
 311                  $formatc->set_align('center');
 312                  $formatr = $workbook->add_format();
 313                  $formatr->set_bold(1);
 314                  $formatr->set_color('red');
 315                  $formatr->set_align('center');
 316                  $formatg = $workbook->add_format();
 317                  $formatg->set_bold(1);
 318                  $formatg->set_color('green');
 319                  $formatg->set_align('center');
 320  
 321                  $colnum = 0;
 322                  foreach ($headers as $item) {
 323                      $myxls->write(0, $colnum, $item, $formatbc);
 324                      $colnum++;
 325                  }
 326                  $rownum = 1;
 327              } else if ($download == 'CSV') {
 328                  $csvexport = new \csv_export_writer("tab");
 329                  $csvexport->set_filename($filename, ".txt");
 330                  $csvexport->add_data($headers);
 331              }
 332  
 333              if (!$download) {
 334                  $sort = $table->get_sql_sort();
 335              } else {
 336                  $sort = '';
 337              }
 338              // Fix some wired sorting.
 339              if (empty($sort)) {
 340                  $sort = ' ORDER BY uniqueid';
 341              } else {
 342                  $sort = ' ORDER BY '.$sort;
 343              }
 344  
 345              if (!$download) {
 346                  // Add extra limits due to initials bar.
 347                  list($twhere, $tparams) = $table->get_sql_where();
 348                  if ($twhere) {
 349                      $where .= ' AND '.$twhere; // Initial bar.
 350                      $params = array_merge($params, $tparams);
 351                  }
 352  
 353                  if (!empty($countsql)) {
 354                      $count = $DB->get_record_sql($countsql, $params);
 355                      $totalinitials = $count->nbresults;
 356                      if ($twhere) {
 357                          $countsql .= ' AND '.$twhere;
 358                      }
 359                      $count = $DB->get_record_sql($countsql, $params);
 360                      $total  = $count->nbresults;
 361                  }
 362  
 363                  $table->pagesize($pagesize, $total);
 364  
 365                  echo \html_writer::start_div('scormattemptcounts');
 366                  if ( $count->nbresults == $count->nbattempts ) {
 367                      echo get_string('reportcountattempts', 'scorm', $count);
 368                  } else if ( $count->nbattempts > 0 ) {
 369                      echo get_string('reportcountallattempts', 'scorm', $count);
 370                  } else {
 371                      echo $count->nbusers.' '.get_string('users');
 372                  }
 373                  echo \html_writer::end_div();
 374              }
 375  
 376              // Fetch the attempts.
 377              if (!$download) {
 378                  $attempts = $DB->get_records_sql($select.$from.$where.$sort, $params,
 379                  $table->get_page_start(), $table->get_page_size());
 380                  echo \html_writer::start_div('', array('id' => 'scormtablecontainer'));
 381                  if ($candelete) {
 382                      // Start form.
 383                      $strreallydel  = addslashes_js(get_string('deleteattemptcheck', 'scorm'));
 384                      echo \html_writer::start_tag('form', array('id' => 'attemptsform', 'method' => 'post',
 385                                                                  'action' => $PAGE->url->out(false),
 386                                                                  'onsubmit' => 'return confirm("'.$strreallydel.'");'));
 387                      echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'action', 'value' => 'delete'));
 388                      echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
 389                      echo \html_writer::start_div('', array('style' => 'display: none;'));
 390                      echo \html_writer::input_hidden_params($PAGE->url);
 391                      echo \html_writer::end_div();
 392                      echo \html_writer::start_div();
 393                  }
 394                  $table->initialbars($totalinitials > 20); // Build table rows.
 395              } else {
 396                  $attempts = $DB->get_records_sql($select.$from.$where.$sort, $params);
 397              }
 398              if ($attempts) {
 399                  foreach ($attempts as $scouser) {
 400                      $row = array();
 401                      if (!empty($scouser->attempt)) {
 402                          $timetracks = scorm_get_sco_runtime($scorm->id, false, $scouser->userid, $scouser->attempt);
 403                      } else {
 404                          $timetracks = '';
 405                      }
 406                      if (in_array('checkbox', $columns)) {
 407                          if ($candelete && !empty($timetracks->start)) {
 408                              $row[] = $this->generate_row_checkbox('attemptid[]', "{$scouser->userid}:{$scouser->attempt}");
 409                          } else if ($candelete) {
 410                              $row[] = '';
 411                          }
 412                      }
 413                      if (in_array('picture', $columns)) {
 414                          $user = new \stdClass();
 415                          $additionalfields = explode(',', \user_picture::fields());
 416                          $user = username_load_fields_from_object($user, $scouser, null, $additionalfields);
 417                          $user->id = $scouser->userid;
 418                          $row[] = $OUTPUT->user_picture($user, array('courseid' => $course->id));
 419                      }
 420                      if (!$download) {
 421                          $url = new \moodle_url('/user/view.php', array('id' => $scouser->userid, 'course' => $course->id));
 422                          $row[] = \html_writer::link($url, fullname($scouser));
 423                      } else {
 424                          $row[] = fullname($scouser);
 425                      }
 426                      foreach ($extrafields as $field) {
 427                          $row[] = s($scouser->{$field});
 428                      }
 429                      if (empty($timetracks->start)) {
 430                          $row[] = '-';
 431                          $row[] = '-';
 432                          $row[] = '-';
 433                          $row[] = '-';
 434                      } else {
 435                          if (!$download) {
 436                              $url = new \moodle_url('/mod/scorm/report/userreport.php', array('id' => $cm->id,
 437                                      'user' => $scouser->userid, 'attempt' => $scouser->attempt));
 438                              $row[] = \html_writer::link($url, $scouser->attempt);
 439                          } else {
 440                              $row[] = $scouser->attempt;
 441                          }
 442                          if ($download == 'ODS' || $download == 'Excel' ) {
 443                              $row[] = userdate($timetracks->start, get_string("strftimedatetime", "langconfig"));
 444                          } else {
 445                              $row[] = userdate($timetracks->start);
 446                          }
 447                          if ($download == 'ODS' || $download == 'Excel' ) {
 448                              $row[] = userdate($timetracks->finish, get_string('strftimedatetime', 'langconfig'));
 449                          } else {
 450                              $row[] = userdate($timetracks->finish);
 451                          }
 452                          $row[] = scorm_grade_user_attempt($scorm, $scouser->userid, $scouser->attempt);
 453                      }
 454                      // Print out all scores of attempt.
 455                      foreach ($scoes as $sco) {
 456                          if ($sco->launch != '') {
 457                              if ($trackdata = scorm_get_tracks($sco->id, $scouser->userid, $scouser->attempt)) {
 458                                  if ($trackdata->status == '') {
 459                                      $trackdata->status = 'notattempted';
 460                                  }
 461                                  $strstatus = get_string($trackdata->status, 'scorm');
 462  
 463                                  if ($trackdata->score_raw != '') { // If raw score exists, print it.
 464                                      $score = $trackdata->score_raw;
 465                                      // Add max score if it exists.
 466                                      if (isset($trackdata->score_max)) {
 467                                          $score .= '/'.$trackdata->score_max;
 468                                      }
 469  
 470                                  } else { // ...else print out status.
 471                                      $score = $strstatus;
 472                                  }
 473                                  if (!$download) {
 474                                      $url = new \moodle_url('/mod/scorm/report/userreporttracks.php', array('id' => $cm->id,
 475                                          'scoid' => $sco->id, 'user' => $scouser->userid, 'attempt' => $scouser->attempt));
 476                                      $row[] = $OUTPUT->pix_icon($trackdata->status, $strstatus, 'scorm') . '<br>' .
 477                                          \html_writer::link($url, $score, array('title' => get_string('details', 'scorm')));
 478                                  } else {
 479                                      $row[] = $score;
 480                                  }
 481                                  // Iterate over tracks and match objective id against values.
 482                                  $scorm2004 = false;
 483                                  if (scorm_version_check($scorm->version, SCORM_13)) {
 484                                      $scorm2004 = true;
 485                                      $objectiveprefix = "cmi.objectives.";
 486                                  } else {
 487                                      $objectiveprefix = "cmi.objectives_";
 488                                  }
 489  
 490                                  $keywords = array(".id", $objectiveprefix);
 491                                  $objectivestatus = array();
 492                                  $objectivescore = array();
 493                                  foreach ($trackdata as $name => $value) {
 494                                      if (strpos($name, $objectiveprefix) === 0 && strrpos($name, '.id') !== false) {
 495                                          $num = trim(str_ireplace($keywords, '', $name));
 496                                          if (is_numeric($num)) {
 497                                              if ($scorm2004) {
 498                                                  $element = $objectiveprefix.$num.'.completion_status';
 499                                              } else {
 500                                                  $element = $objectiveprefix.$num.'.status';
 501                                              }
 502                                              if (isset($trackdata->$element)) {
 503                                                  $objectivestatus[$value] = $trackdata->$element;
 504                                              } else {
 505                                                  $objectivestatus[$value] = '';
 506                                              }
 507                                              if ($displayoptions['objectivescore']) {
 508                                                  $element = $objectiveprefix.$num.'.score.raw';
 509                                                  if (isset($trackdata->$element)) {
 510                                                      $objectivescore[$value] = $trackdata->$element;
 511                                                  } else {
 512                                                      $objectivescore[$value] = '';
 513                                                  }
 514                                              }
 515                                          }
 516                                      }
 517                                  }
 518  
 519                                  // Interaction data.
 520                                  if (!empty($objectives[$trackdata->scoid])) {
 521                                      foreach ($objectives[$trackdata->scoid] as $name) {
 522                                          if (isset($objectivestatus[$name])) {
 523                                              $row[] = s($objectivestatus[$name]);
 524                                          } else {
 525                                              $row[] = $emptycell;
 526                                          }
 527                                          if ($displayoptions['objectivescore']) {
 528                                              if (isset($objectivescore[$name])) {
 529                                                  $row[] = s($objectivescore[$name]);
 530                                              } else {
 531                                                  $row[] = $emptycell;
 532                                              }
 533  
 534                                          }
 535                                      }
 536                                  }
 537                                  // End of interaction data.
 538                              } else {
 539                                  // If we don't have track data, we haven't attempted yet.
 540                                  $strstatus = get_string('notattempted', 'scorm');
 541                                  if (!$download) {
 542                                      $row[] = $OUTPUT->pix_icon('notattempted', $strstatus, 'scorm') . '<br>' . $strstatus;
 543                                  } else {
 544                                      $row[] = $strstatus;
 545                                  }
 546                                  // Complete the empty cells.
 547                                  for ($i = 0; $i < count($columns) - $nbmaincolumns; $i++) {
 548                                      $row[] = $emptycell;
 549                                  }
 550                              }
 551                          }
 552                      }
 553  
 554                      if (!$download) {
 555                          $table->add_data($row);
 556                      } else if ($download == 'Excel' or $download == 'ODS') {
 557                          $colnum = 0;
 558                          foreach ($row as $item) {
 559                              $myxls->write($rownum, $colnum, $item, $format);
 560                              $colnum++;
 561                          }
 562                          $rownum++;
 563                      } else if ($download == 'CSV') {
 564                          $csvexport->add_data($row);
 565                      }
 566                  }
 567                  if (!$download) {
 568                      $table->finish_output();
 569                      if ($candelete) {
 570                          echo \html_writer::start_tag('table', array('id' => 'commands'));
 571                          echo \html_writer::start_tag('tr').\html_writer::start_tag('td');
 572                          echo $this->generate_delete_selected_button();
 573                          echo \html_writer::end_tag('td').\html_writer::end_tag('tr').\html_writer::end_tag('table');
 574                          // Close form.
 575                          echo \html_writer::end_tag('div');
 576                          echo \html_writer::end_tag('form');
 577                      }
 578                      echo \html_writer::end_div();
 579                      if (!empty($attempts)) {
 580                          echo \html_writer::start_tag('table', array('class' => 'boxaligncenter')).\html_writer::start_tag('tr');
 581                          echo \html_writer::start_tag('td');
 582                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 583                                                                     array('download' => 'ODS') + $displayoptions),
 584                                                                     get_string('downloadods'),
 585                                                                     'post',
 586                                                                     ['class' => 'mt-1']);
 587                          echo \html_writer::end_tag('td');
 588                          echo \html_writer::start_tag('td');
 589                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 590                                                                     array('download' => 'Excel') + $displayoptions),
 591                                                                     get_string('downloadexcel'),
 592                                                                     'post',
 593                                                                     ['class' => 'mt-1']);
 594                          echo \html_writer::end_tag('td');
 595                          echo \html_writer::start_tag('td');
 596                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 597                                                                     array('download' => 'CSV') + $displayoptions),
 598                                                                     get_string('downloadtext'),
 599                                                                     'post',
 600                                                                     ['class' => 'mt-1']);
 601                          echo \html_writer::end_tag('td');
 602                          echo \html_writer::start_tag('td');
 603                          echo \html_writer::end_tag('td');
 604                          echo \html_writer::end_tag('tr').\html_writer::end_tag('table');
 605                      }
 606                  }
 607              } else {
 608                  if ($candelete && !$download) {
 609                      echo \html_writer::end_div();
 610                      echo \html_writer::end_tag('form');
 611                      $table->finish_output();
 612                  }
 613                  echo \html_writer::end_div();
 614              }
 615              // Show preferences form irrespective of attempts are there to report or not.
 616              if (!$download) {
 617                  $mform->set_data(compact('pagesize', 'attemptsmode'));
 618                  $mform->display();
 619              }
 620              if ($download == 'Excel' or $download == 'ODS') {
 621                  $workbook->close();
 622                  exit;
 623              } else if ($download == 'CSV') {
 624                  $csvexport->download_file();
 625                  exit;
 626              }
 627          } else {
 628              echo $OUTPUT->notification(get_string('noactivity', 'scorm'));
 629          }
 630      }// Function ends.
 631  }
 632  
 633  /**
 634   * Returns The maximum numbers of Objectives associated with an Scorm Pack
 635   *
 636   * @param int $scormid Scorm instance id
 637   * @return array an array of possible objectives.
 638   */
 639  function get_scorm_objectives($scormid) {
 640      global $DB;
 641      $objectives = array();
 642      $params = array();
 643      $select = "scormid = ? AND ";
 644      $select .= $DB->sql_like("element", "?", false);
 645      $params[] = $scormid;
 646      $params[] = "cmi.objectives%.id";
 647      $value = $DB->sql_compare_text('value');
 648      $rs = $DB->get_recordset_select("scorm_scoes_track", $select, $params, 'value', "DISTINCT $value AS value, scoid");
 649      if ($rs->valid()) {
 650          foreach ($rs as $record) {
 651              $objectives[$record->scoid][] = $record->value;
 652          }
 653          // Now naturally sort the sco arrays.
 654          foreach ($objectives as $scoid => $sco) {
 655              natsort($objectives[$scoid]);
 656          }
 657      }
 658      $rs->close();
 659      return $objectives;
 660  }