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Differences Between: [Versions 310 and 311] [Versions 311 and 400] [Versions 311 and 401] [Versions 311 and 402] [Versions 311 and 403] [Versions 39 and 311]

   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 basic reporting plugin
  18   * @package   scormreport
  19   * @subpackage interactions
  20   * @author    Dan Marsden and Ankit Kumar Agarwal
  21   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  22   */
  23  
  24  namespace scormreport_interactions;
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  require_once($CFG->dirroot.'/mod/scorm/report/interactions/responsessettings_form.php');
  29  
  30  class report extends \mod_scorm\report {
  31      /**
  32       * displays the full report
  33       * @param \stdClass $scorm full SCORM object
  34       * @param \stdClass $cm - full course_module object
  35       * @param \stdClass $course - full course object
  36       * @param string $download - type of download being requested
  37       */
  38      public function display($scorm, $cm, $course, $download) {
  39          global $CFG, $DB, $OUTPUT, $PAGE;
  40  
  41          $contextmodule = \context_module::instance($cm->id);
  42          $action = optional_param('action', '', PARAM_ALPHA);
  43          $attemptids = optional_param_array('attemptid', array(), PARAM_RAW);
  44          $attemptsmode = optional_param('attemptsmode', SCORM_REPORT_ATTEMPTS_ALL_STUDENTS, PARAM_INT);
  45          $PAGE->set_url(new \moodle_url($PAGE->url, array('attemptsmode' => $attemptsmode)));
  46  
  47          if ($action == 'delete' && has_capability('mod/scorm:deleteresponses', $contextmodule) && confirm_sesskey()) {
  48              if (scorm_delete_responses($attemptids, $scorm)) { // Delete responses.
  49                  echo $OUTPUT->notification(get_string('scormresponsedeleted', 'scorm'), 'notifysuccess');
  50              }
  51          }
  52          // Find out current groups mode.
  53          $currentgroup = groups_get_activity_group($cm, true);
  54  
  55          // Detailed report.
  56          $mform = new \mod_scorm_report_interactions_settings($PAGE->url, compact('currentgroup'));
  57          if ($fromform = $mform->get_data()) {
  58              $pagesize = $fromform->pagesize;
  59              $includeqtext = $fromform->qtext;
  60              $includeresp = $fromform->resp;
  61              $includeright = $fromform->right;
  62              $includeresult = $fromform->result;
  63              set_user_preference('scorm_report_pagesize', $pagesize);
  64              set_user_preference('scorm_report_interactions_qtext', $includeqtext);
  65              set_user_preference('scorm_report_interactions_resp', $includeresp);
  66              set_user_preference('scorm_report_interactions_right', $includeright);
  67              set_user_preference('scorm_report_interactions_result', $includeresult);
  68          } else {
  69              $pagesize = get_user_preferences('scorm_report_pagesize', 0);
  70              $includeqtext = get_user_preferences('scorm_report_interactions_qtext', 0);
  71              $includeresp = get_user_preferences('scorm_report_interactions_resp', 1);
  72              $includeright = get_user_preferences('scorm_report_interactions_right', 0);
  73              $includeresult = get_user_preferences('scorm_report_interactions_result', 0);
  74          }
  75          if ($pagesize < 1) {
  76              $pagesize = SCORM_REPORT_DEFAULT_PAGE_SIZE;
  77          }
  78  
  79          // Select group menu.
  80          $displayoptions = array();
  81          $displayoptions['attemptsmode'] = $attemptsmode;
  82          $displayoptions['qtext'] = $includeqtext;
  83          $displayoptions['resp'] = $includeresp;
  84          $displayoptions['right'] = $includeright;
  85          $displayoptions['result'] = $includeresult;
  86  
  87          $mform->set_data($displayoptions + array('pagesize' => $pagesize));
  88          if ($groupmode = groups_get_activity_groupmode($cm)) {   // Groups are being used.
  89              if (!$download) {
  90                  groups_print_activity_menu($cm, new \moodle_url($PAGE->url, $displayoptions));
  91              }
  92          }
  93          $formattextoptions = array('context' => \context_course::instance($course->id));
  94  
  95          // We only want to show the checkbox to delete attempts
  96          // if the user has permissions and if the report mode is showing attempts.
  97          $candelete = has_capability('mod/scorm:deleteresponses', $contextmodule)
  98                  && ($attemptsmode != SCORM_REPORT_ATTEMPTS_STUDENTS_WITH_NO);
  99          // Select the students.
 100          $nostudents = false;
 101          list($allowedlistsql, $params) = get_enrolled_sql($contextmodule, 'mod/scorm:savetrack', (int) $currentgroup);
 102          if (empty($currentgroup)) {
 103              // All users who can attempt scoes.
 104              if (!$DB->record_exists_sql($allowedlistsql, $params)) {
 105                  echo $OUTPUT->notification(get_string('nostudentsyet'));
 106                  $nostudents = true;
 107              }
 108          } else {
 109              // All users who can attempt scoes and who are in the currently selected group.
 110              if (!$DB->record_exists_sql($allowedlistsql, $params)) {
 111                  echo $OUTPUT->notification(get_string('nostudentsingroup'));
 112                  $nostudents = true;
 113              }
 114          }
 115          if ( !$nostudents ) {
 116              // Now check if asked download of data.
 117              $coursecontext = \context_course::instance($course->id);
 118              if ($download) {
 119                  $filename = clean_filename("$course->shortname ".format_string($scorm->name, true, $formattextoptions));
 120              }
 121  
 122              // Define table columns.
 123              $columns = array();
 124              $headers = array();
 125              if (!$download && $candelete) {
 126                  $columns[] = 'checkbox';
 127                  $headers[] = $this->generate_master_checkbox();
 128              }
 129              if (!$download && $CFG->grade_report_showuserimage) {
 130                  $columns[] = 'picture';
 131                  $headers[] = '';
 132              }
 133              $columns[] = 'fullname';
 134              $headers[] = get_string('name');
 135  
 136              // TODO Does not support custom user profile fields (MDL-70456).
 137              $extrafields = \core_user\fields::get_identity_fields($coursecontext, false);
 138              foreach ($extrafields as $field) {
 139                  $columns[] = $field;
 140                  $headers[] = \core_user\fields::get_display_name($field);
 141              }
 142              $columns[] = 'attempt';
 143              $headers[] = get_string('attempt', 'scorm');
 144              $columns[] = 'start';
 145              $headers[] = get_string('started', 'scorm');
 146              $columns[] = 'finish';
 147              $headers[] = get_string('last', 'scorm');
 148              $columns[] = 'score';
 149              $headers[] = get_string('score', 'scorm');
 150              $scoes = $DB->get_records('scorm_scoes', array("scorm" => $scorm->id), 'sortorder, id');
 151              foreach ($scoes as $sco) {
 152                  if ($sco->launch != '') {
 153                      $columns[] = 'scograde'.$sco->id;
 154                      $headers[] = format_string($sco->title, '', $formattextoptions);
 155                  }
 156              }
 157  
 158              // Construct the SQL.
 159              $select = 'SELECT DISTINCT '.$DB->sql_concat('u.id', '\'#\'', 'COALESCE(st.attempt, 0)').' AS uniqueid, ';
 160              // TODO Does not support custom user profile fields (MDL-70456).
 161              $userfields = \core_user\fields::for_identity($coursecontext, false)->with_userpic()->including('idnumber');
 162              $selectfields = $userfields->get_sql('u', false, '', 'userid')->selects;
 163              $select .= 'st.scormid AS scormid, st.attempt AS attempt ' . $selectfields . ' ';
 164  
 165              // This part is the same for all cases - join users and scorm_scoes_track tables.
 166              $from = 'FROM {user} u ';
 167              $from .= 'LEFT JOIN {scorm_scoes_track} st ON st.userid = u.id AND st.scormid = '.$scorm->id;
 168              switch ($attemptsmode) {
 169                  case SCORM_REPORT_ATTEMPTS_STUDENTS_WITH:
 170                      // Show only students with attempts.
 171                      $where = " WHERE u.id IN ({$allowedlistsql}) AND st.userid IS NOT NULL";
 172                      break;
 173                  case SCORM_REPORT_ATTEMPTS_STUDENTS_WITH_NO:
 174                      // Show only students without attempts.
 175                      $where = " WHERE u.id IN ({$allowedlistsql}) AND st.userid IS NULL";
 176                      break;
 177                  case SCORM_REPORT_ATTEMPTS_ALL_STUDENTS:
 178                      // Show all students with or without attempts.
 179                      $where = " WHERE u.id IN ({$allowedlistsql}) AND (st.userid IS NOT NULL OR st.userid IS NULL)";
 180                      break;
 181              }
 182  
 183              $countsql = 'SELECT COUNT(DISTINCT('.$DB->sql_concat('u.id', '\'#\'', 'COALESCE(st.attempt, 0)').')) AS nbresults, ';
 184              $countsql .= 'COUNT(DISTINCT('.$DB->sql_concat('u.id', '\'#\'', 'st.attempt').')) AS nbattempts, ';
 185              $countsql .= 'COUNT(DISTINCT(u.id)) AS nbusers ';
 186              $countsql .= $from.$where;
 187              $questioncount = get_scorm_question_count($scorm->id);
 188              $nbmaincolumns = count($columns);
 189              for ($id = 0; $id < $questioncount; $id++) {
 190                  if ($displayoptions['qtext']) {
 191                      $columns[] = 'question' . $id;
 192                      $headers[] = get_string('questionx', 'scormreport_interactions', $id);
 193                  }
 194                  if ($displayoptions['resp']) {
 195                      $columns[] = 'response' . $id;
 196                      $headers[] = get_string('responsex', 'scormreport_interactions', $id);
 197                  }
 198                  if ($displayoptions['right']) {
 199                      $columns[] = 'right' . $id;
 200                      $headers[] = get_string('rightanswerx', 'scormreport_interactions', $id);
 201                  }
 202                  if ($displayoptions['result']) {
 203                      $columns[] = 'result' . $id;
 204                      $headers[] = get_string('resultx', 'scormreport_interactions', $id);
 205                  }
 206              }
 207  
 208              if (!$download) {
 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  
 225                  $table->no_sorting('start');
 226                  $table->no_sorting('finish');
 227                  $table->no_sorting('score');
 228                  $table->no_sorting('checkbox');
 229                  $table->no_sorting('picture');
 230  
 231                  for ($id = 0; $id < $questioncount; $id++) {
 232                      if ($displayoptions['qtext']) {
 233                          $table->no_sorting('question'.$id);
 234                      }
 235                      if ($displayoptions['resp']) {
 236                          $table->no_sorting('response'.$id);
 237                      }
 238                      if ($displayoptions['right']) {
 239                          $table->no_sorting('right'.$id);
 240                      }
 241                      if ($displayoptions['result']) {
 242                          $table->no_sorting('result'.$id);
 243                      }
 244                  }
 245  
 246                  foreach ($scoes as $sco) {
 247                      if ($sco->launch != '') {
 248                          $table->no_sorting('scograde'.$sco->id);
 249                      }
 250                  }
 251  
 252                  $table->column_class('picture', 'picture');
 253                  $table->column_class('fullname', 'bold');
 254                  $table->column_class('score', 'bold');
 255  
 256                  $table->set_attribute('cellspacing', '0');
 257                  $table->set_attribute('id', 'attempts');
 258                  $table->set_attribute('class', 'generaltable generalbox');
 259  
 260                  // Start working -- this is necessary as soon as the niceties are over.
 261                  $table->setup();
 262              } else if ($download == 'ODS') {
 263                  require_once("$CFG->libdir/odslib.class.php");
 264  
 265                  $filename .= ".ods";
 266                  // Creating a workbook.
 267                  $workbook = new \MoodleODSWorkbook("-");
 268                  // Sending HTTP headers.
 269                  $workbook->send($filename);
 270                  // Creating the first worksheet.
 271                  $sheettitle = get_string('report', 'scorm');
 272                  $myxls = $workbook->add_worksheet($sheettitle);
 273                  // Format types.
 274                  $format = $workbook->add_format();
 275                  $format->set_bold(0);
 276                  $formatbc = $workbook->add_format();
 277                  $formatbc->set_bold(1);
 278                  $formatbc->set_align('center');
 279                  $formatb = $workbook->add_format();
 280                  $formatb->set_bold(1);
 281                  $formaty = $workbook->add_format();
 282                  $formaty->set_bg_color('yellow');
 283                  $formatc = $workbook->add_format();
 284                  $formatc->set_align('center');
 285                  $formatr = $workbook->add_format();
 286                  $formatr->set_bold(1);
 287                  $formatr->set_color('red');
 288                  $formatr->set_align('center');
 289                  $formatg = $workbook->add_format();
 290                  $formatg->set_bold(1);
 291                  $formatg->set_color('green');
 292                  $formatg->set_align('center');
 293                  // Here starts workshhet headers.
 294  
 295                  $colnum = 0;
 296                  foreach ($headers as $item) {
 297                      $myxls->write(0, $colnum, $item, $formatbc);
 298                      $colnum++;
 299                  }
 300                  $rownum = 1;
 301              } else if ($download == 'Excel') {
 302                  require_once("$CFG->libdir/excellib.class.php");
 303  
 304                  $filename .= ".xls";
 305                  // Creating a workbook.
 306                  $workbook = new \MoodleExcelWorkbook("-");
 307                  // Sending HTTP headers.
 308                  $workbook->send($filename);
 309                  // Creating the first worksheet.
 310                  $sheettitle = get_string('report', 'scorm');
 311                  $myxls = $workbook->add_worksheet($sheettitle);
 312                  // Format types.
 313                  $format = $workbook->add_format();
 314                  $format->set_bold(0);
 315                  $formatbc = $workbook->add_format();
 316                  $formatbc->set_bold(1);
 317                  $formatbc->set_align('center');
 318                  $formatb = $workbook->add_format();
 319                  $formatb->set_bold(1);
 320                  $formaty = $workbook->add_format();
 321                  $formaty->set_bg_color('yellow');
 322                  $formatc = $workbook->add_format();
 323                  $formatc->set_align('center');
 324                  $formatr = $workbook->add_format();
 325                  $formatr->set_bold(1);
 326                  $formatr->set_color('red');
 327                  $formatr->set_align('center');
 328                  $formatg = $workbook->add_format();
 329                  $formatg->set_bold(1);
 330                  $formatg->set_color('green');
 331                  $formatg->set_align('center');
 332  
 333                  $colnum = 0;
 334                  foreach ($headers as $item) {
 335                      $myxls->write(0, $colnum, $item, $formatbc);
 336                      $colnum++;
 337                  }
 338                  $rownum = 1;
 339              } else if ($download == 'CSV') {
 340                  $csvexport = new \csv_export_writer("tab");
 341                  $csvexport->set_filename($filename, ".txt");
 342                  $csvexport->add_data($headers);
 343              }
 344  
 345              if (!$download) {
 346                  $sort = $table->get_sql_sort();
 347              } else {
 348                  $sort = '';
 349              }
 350              // Fix some wired sorting.
 351              if (empty($sort)) {
 352                  $sort = ' ORDER BY uniqueid';
 353              } else {
 354                  $sort = ' ORDER BY '.$sort;
 355              }
 356  
 357              if (!$download) {
 358                  // Add extra limits due to initials bar.
 359                  list($twhere, $tparams) = $table->get_sql_where();
 360                  if ($twhere) {
 361                      $where .= ' AND '.$twhere; // Initial bar.
 362                      $params = array_merge($params, $tparams);
 363                  }
 364  
 365                  if (!empty($countsql)) {
 366                      $count = $DB->get_record_sql($countsql, $params);
 367                      $totalinitials = $count->nbresults;
 368                      if ($twhere) {
 369                          $countsql .= ' AND '.$twhere;
 370                      }
 371                      $count = $DB->get_record_sql($countsql, $params);
 372                      $total  = $count->nbresults;
 373                  }
 374  
 375                  $table->pagesize($pagesize, $total);
 376  
 377                  echo \html_writer::start_div('scormattemptcounts');
 378                  if ( $count->nbresults == $count->nbattempts ) {
 379                      echo get_string('reportcountattempts', 'scorm', $count);
 380                  } else if ( $count->nbattempts > 0 ) {
 381                      echo get_string('reportcountallattempts', 'scorm', $count);
 382                  } else {
 383                      echo $count->nbusers.' '.get_string('users');
 384                  }
 385                  echo \html_writer::end_div();
 386              }
 387  
 388              // Fetch the attempts.
 389              if (!$download) {
 390                  $attempts = $DB->get_records_sql($select.$from.$where.$sort, $params,
 391                  $table->get_page_start(), $table->get_page_size());
 392                  echo \html_writer::start_div('', array('id' => 'scormtablecontainer'));
 393                  if ($candelete) {
 394                      // Start form.
 395                      $strreallydel  = addslashes_js(get_string('deleteattemptcheck', 'scorm'));
 396                      echo \html_writer::start_tag('form', array('id' => 'attemptsform', 'method' => 'post',
 397                                                                  'action' => $PAGE->url->out(false),
 398                                                                  'onsubmit' => 'return confirm("'.$strreallydel.'");'));
 399                      echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'action', 'value' => 'delete'));
 400                      echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
 401                      echo \html_writer::start_div('', array('style' => 'display: none;'));
 402                      echo \html_writer::input_hidden_params($PAGE->url);
 403                      echo \html_writer::end_div();
 404                      echo \html_writer::start_div();
 405                  }
 406                  $table->initialbars($totalinitials > 20); // Build table rows.
 407              } else {
 408                  $attempts = $DB->get_records_sql($select.$from.$where.$sort, $params);
 409              }
 410              if ($attempts) {
 411                  foreach ($attempts as $scouser) {
 412                      $row = array();
 413                      if (!empty($scouser->attempt)) {
 414                          $timetracks = scorm_get_sco_runtime($scorm->id, false, $scouser->userid, $scouser->attempt);
 415                      } else {
 416                          $timetracks = '';
 417                      }
 418                      if (in_array('checkbox', $columns)) {
 419                          if ($candelete && !empty($timetracks->start)) {
 420                              $row[] = $this->generate_row_checkbox('attemptid[]', "{$scouser->userid}:{$scouser->attempt}");
 421                          } else if ($candelete) {
 422                              $row[] = '';
 423                          }
 424                      }
 425                      if (in_array('picture', $columns)) {
 426                          $user = new \stdClass();
 427                          $additionalfields = explode(',', implode(',', \core_user\fields::get_picture_fields()));
 428                          $user = username_load_fields_from_object($user, $scouser, null, $additionalfields);
 429                          $user->id = $scouser->userid;
 430                          $row[] = $OUTPUT->user_picture($user, array('courseid' => $course->id));
 431                      }
 432                      if (!$download) {
 433                          $url = new \moodle_url('/user/view.php', array('id' => $scouser->userid, 'course' => $course->id));
 434                          $row[] = \html_writer::link($url, fullname($scouser));
 435                      } else {
 436                          $row[] = fullname($scouser);
 437                      }
 438                      foreach ($extrafields as $field) {
 439                          $row[] = s($scouser->{$field});
 440                      }
 441                      if (empty($timetracks->start)) {
 442                          $row[] = '-';
 443                          $row[] = '-';
 444                          $row[] = '-';
 445                          $row[] = '-';
 446                      } else {
 447                          if (!$download) {
 448                              $url = new \moodle_url('/mod/scorm/report/userreport.php',
 449                                                      array('id' => $cm->id,
 450                                                          'user' => $scouser->userid,
 451                                                          'attempt' => $scouser->attempt));
 452                              $row[] = \html_writer::link($url, $scouser->attempt);
 453                          } else {
 454                              $row[] = $scouser->attempt;
 455                          }
 456                          if ($download == 'ODS' || $download == 'Excel' ) {
 457                              $row[] = userdate($timetracks->start, get_string("strftimedatetime", "langconfig"));
 458                          } else {
 459                              $row[] = userdate($timetracks->start);
 460                          }
 461                          if ($download == 'ODS' || $download == 'Excel' ) {
 462                              $row[] = userdate($timetracks->finish, get_string('strftimedatetime', 'langconfig'));
 463                          } else {
 464                              $row[] = userdate($timetracks->finish);
 465                          }
 466                          $row[] = scorm_grade_user_attempt($scorm, $scouser->userid, $scouser->attempt);
 467                      }
 468                      // Print out all scores of attempt.
 469                      $emptyrow = $download ? '' : '&nbsp;';
 470                      foreach ($scoes as $sco) {
 471                          if ($sco->launch != '') {
 472                              if ($trackdata = scorm_get_tracks($sco->id, $scouser->userid, $scouser->attempt)) {
 473                                  if ($trackdata->status == '') {
 474                                      $trackdata->status = 'notattempted';
 475                                  }
 476                                  $strstatus = get_string($trackdata->status, 'scorm');
 477                                  // If raw score exists, print it.
 478                                  if ($trackdata->score_raw != '') {
 479                                      $score = $trackdata->score_raw;
 480                                      // Add max score if it exists.
 481                                      if (isset($trackdata->score_max)) {
 482                                          $score .= '/'.$trackdata->score_max;
 483                                      }
 484                                  } else { // Else print out status.
 485                                      $score = $strstatus;
 486                                  }
 487                                  if (!$download) {
 488                                      $url = new \moodle_url('/mod/scorm/report/userreporttracks.php', array('id' => $cm->id,
 489                                          'scoid' => $sco->id, 'user' => $scouser->userid, 'attempt' => $scouser->attempt));
 490                                      $row[] = $OUTPUT->pix_icon($trackdata->status, $strstatus, 'scorm') . '<br>' .
 491                                          \html_writer::link($url, $score, array('title' => get_string('details', 'scorm')));
 492                                  } else {
 493                                      $row[] = $score;
 494                                  }
 495                                  // Interaction data.
 496                                  for ($i = 0; $i < $questioncount; $i++) {
 497                                      if ($displayoptions['qtext']) {
 498                                          $element = 'cmi.interactions_'.$i.'.id';
 499                                          if (isset($trackdata->$element)) {
 500                                              $row[] = s($trackdata->$element);
 501                                          } else {
 502                                              $row[] = $emptyrow;
 503                                          }
 504                                      }
 505                                      if ($displayoptions['resp']) {
 506                                          $element = 'cmi.interactions_'.$i.'.student_response';
 507                                          if (isset($trackdata->$element)) {
 508                                              $row[] = s($trackdata->$element);
 509                                          } else {
 510                                              $row[] = $emptyrow;
 511                                          }
 512                                      }
 513                                      if ($displayoptions['right']) {
 514                                          $j = 0;
 515                                          $element = 'cmi.interactions_'.$i.'.correct_responses_'.$j.'.pattern';
 516                                          $rightans = '';
 517                                          if (isset($trackdata->$element)) {
 518                                              while (isset($trackdata->$element)) {
 519                                                  if ($j > 0) {
 520                                                      $rightans .= ',';
 521                                                  }
 522                                                  $rightans .= s($trackdata->$element);
 523                                                  $j++;
 524                                                  $element = 'cmi.interactions_'.$i.'.correct_responses_'.$j.'.pattern';
 525                                              }
 526                                              $row[] = $rightans;
 527                                          } else {
 528                                              $row[] = $emptyrow;
 529                                          }
 530                                      }
 531                                      if ($displayoptions['result']) {
 532                                          $element = 'cmi.interactions_'.$i.'.result';
 533                                          if (isset($trackdata->$element)) {
 534                                              $row[] = s($trackdata->$element);
 535                                          } else {
 536                                              $row[] = $emptyrow;
 537                                          }
 538                                      }
 539                                  }
 540                                  // End of interaction data.
 541                              } else {
 542                                  // If we don't have track data, we haven't attempted yet.
 543                                  $strstatus = get_string('notattempted', 'scorm');
 544                                  if (!$download) {
 545                                      $row[] = $OUTPUT->pix_icon('notattempted', $strstatus, 'scorm') . '<br>' . $strstatus;
 546                                  } else {
 547                                      $row[] = $strstatus;
 548                                  }
 549                                  // Complete the empty cells.
 550                                  for ($i = 0; $i < count($columns) - $nbmaincolumns; $i++) {
 551                                      $row[] = $emptyrow;
 552                                  }
 553                              }
 554                          }
 555                      }
 556  
 557                      if (!$download) {
 558                          $table->add_data($row);
 559                      } else if ($download == 'Excel' or $download == 'ODS') {
 560                          $colnum = 0;
 561                          foreach ($row as $item) {
 562                              $myxls->write($rownum, $colnum, $item, $format);
 563                              $colnum++;
 564                          }
 565                          $rownum++;
 566                      } else if ($download == 'CSV') {
 567                          $csvexport->add_data($row);
 568                      }
 569                  }
 570                  if (!$download) {
 571                      $table->finish_output();
 572                      if ($candelete) {
 573                          echo \html_writer::start_tag('table', array('id' => 'commands'));
 574                          echo \html_writer::start_tag('tr').\html_writer::start_tag('td');
 575                          echo $this->generate_delete_selected_button();
 576                          echo \html_writer::end_tag('td').\html_writer::end_tag('tr').\html_writer::end_tag('table');
 577                          // Close form.
 578                          echo \html_writer::end_tag('div');
 579                          echo \html_writer::end_tag('form');
 580                      }
 581                      echo \html_writer::end_div();
 582                      if (!empty($attempts)) {
 583                          echo \html_writer::start_tag('table', array('class' => 'boxaligncenter')).\html_writer::start_tag('tr');
 584                          echo \html_writer::start_tag('td');
 585                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 586                                                                     array('download' => 'ODS') + $displayoptions),
 587                                                                     get_string('downloadods'),
 588                                                                     'post',
 589                                                                     ['class' => 'mt-1']);
 590                          echo \html_writer::end_tag('td');
 591                          echo \html_writer::start_tag('td');
 592                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 593                                                                     array('download' => 'Excel') + $displayoptions),
 594                                                                     get_string('downloadexcel'),
 595                                                                     'post',
 596                                                                     ['class' => 'mt-1']);
 597                          echo \html_writer::end_tag('td');
 598                          echo \html_writer::start_tag('td');
 599                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 600                                                                     array('download' => 'CSV') + $displayoptions),
 601                                                                     get_string('downloadtext'),
 602                                                                     'post',
 603                                                                     ['class' => 'mt-1']);
 604                          echo \html_writer::end_tag('td');
 605                          echo \html_writer::start_tag('td');
 606                          echo \html_writer::end_tag('td');
 607                          echo \html_writer::end_tag('tr').\html_writer::end_tag('table');
 608                      }
 609                  }
 610              } else {
 611                  if ($candelete && !$download) {
 612                      echo \html_writer::end_div();
 613                      echo \html_writer::end_tag('form');
 614                      $table->finish_output();
 615                  }
 616                  echo \html_writer::end_div();
 617              }
 618              // Show preferences form irrespective of attempts are there to report or not.
 619              if (!$download) {
 620                  $mform->set_data(compact('pagesize', 'attemptsmode'));
 621                  $mform->display();
 622              }
 623              if ($download == 'Excel' or $download == 'ODS') {
 624                  $workbook->close();
 625                  exit;
 626              } else if ($download == 'CSV') {
 627                  $csvexport->download_file();
 628                  exit;
 629              }
 630          } else {
 631              echo $OUTPUT->notification(get_string('noactivity', 'scorm'));
 632          }
 633      }// Function ends.
 634  }