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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 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              // TODO Does not support custom user profile fields (MDL-70456).
 131              $extrafields = \core_user\fields::get_identity_fields($coursecontext, false);
 132              foreach ($extrafields as $field) {
 133                  $columns[] = $field;
 134                  $headers[] = \core_user\fields::get_display_name($field);
 135              }
 136              $columns[] = 'attempt';
 137              $headers[] = get_string('attempt', 'scorm');
 138              $columns[] = 'start';
 139              $headers[] = get_string('started', 'scorm');
 140              $columns[] = 'finish';
 141              $headers[] = get_string('last', 'scorm');
 142              $columns[] = 'score';
 143              $headers[] = get_string('score', 'scorm');
 144              $scoes = $DB->get_records('scorm_scoes', array("scorm" => $scorm->id), 'sortorder, id');
 145              foreach ($scoes as $sco) {
 146                  if ($sco->launch != '') {
 147                      $columns[] = 'scograde'.$sco->id;
 148                      $headers[] = format_string($sco->title, '', $formattextoptions);
 149                  }
 150              }
 151  
 152              // Construct the SQL.
 153              $select = 'SELECT DISTINCT '.$DB->sql_concat('u.id', '\'#\'', 'COALESCE(st.attempt, 0)').' AS uniqueid, ';
 154              // TODO Does not support custom user profile fields (MDL-70456).
 155              $userfields = \core_user\fields::for_identity($coursecontext, false)->with_userpic()->including('idnumber');
 156              $selectfields = $userfields->get_sql('u', false, '', 'userid')->selects;
 157              $select .= 'st.scormid AS scormid, st.attempt AS attempt ' . $selectfields . ' ';
 158  
 159              // This part is the same for all cases - join users and scorm_scoes_track tables.
 160              $from = 'FROM {user} u ';
 161              $from .= 'LEFT JOIN {scorm_scoes_track} st ON st.userid = u.id AND st.scormid = '.$scorm->id;
 162              switch ($attemptsmode) {
 163                  case SCORM_REPORT_ATTEMPTS_STUDENTS_WITH:
 164                      // Show only students with attempts.
 165                      $where = " WHERE u.id IN ({$allowedlistsql}) AND st.userid IS NOT NULL";
 166                      break;
 167                  case SCORM_REPORT_ATTEMPTS_STUDENTS_WITH_NO:
 168                      // Show only students without attempts.
 169                      $where = " WHERE u.id IN ({$allowedlistsql}) AND st.userid IS NULL";
 170                      break;
 171                  case SCORM_REPORT_ATTEMPTS_ALL_STUDENTS:
 172                      // Show all students with or without attempts.
 173                      $where = " WHERE u.id IN ({$allowedlistsql}) AND (st.userid IS NOT NULL OR st.userid IS NULL)";
 174                      break;
 175              }
 176  
 177              $countsql = 'SELECT COUNT(DISTINCT('.$DB->sql_concat('u.id', '\'#\'', 'COALESCE(st.attempt, 0)').')) AS nbresults, ';
 178              $countsql .= 'COUNT(DISTINCT('.$DB->sql_concat('u.id', '\'#\'', 'st.attempt').')) AS nbattempts, ';
 179              $countsql .= 'COUNT(DISTINCT(u.id)) AS nbusers ';
 180              $countsql .= $from.$where;
 181  
 182              $nbmaincolumns = count($columns); // Get number of main columns used.
 183  
 184              $objectives = get_scorm_objectives($scorm->id);
 185              $nosort = array();
 186              foreach ($objectives as $scoid => $sco) {
 187                  foreach ($sco as $id => $objectivename) {
 188                      $colid = $scoid.'objectivestatus' . $id;
 189                      $columns[] = $colid;
 190                      $nosort[] = $colid;
 191  
 192                      if (!$displayoptions['objectivescore']) {
 193                          // Display the objective name only.
 194                          $headers[] = $objectivename;
 195                      } else {
 196                          // Display the objective status header with a "status" suffix to avoid confusion.
 197                          $headers[] = $objectivename. ' '. get_string('status', 'scormreport_objectives');
 198  
 199                          // Now print objective score headers.
 200                          $colid = $scoid.'objectivescore' . $id;
 201                          $columns[] = $colid;
 202                          $nosort[] = $colid;
 203                          $headers[] = $objectivename. ' '. get_string('score', 'scormreport_objectives');
 204                      }
 205                  }
 206              }
 207  
 208              $emptycell = ''; // Used when an empty cell is being printed - in html we add a space.
 209              if (!$download) {
 210                  $emptycell = '&nbsp;';
 211                  $table = new \flexible_table('mod-scorm-report');
 212  
 213                  $table->define_columns($columns);
 214                  $table->define_headers($headers);
 215                  $table->define_baseurl($PAGE->url);
 216  
 217                  $table->sortable(true);
 218                  $table->collapsible(true);
 219  
 220                  // This is done to prevent redundant data, when a user has multiple attempts.
 221                  $table->column_suppress('picture');
 222                  $table->column_suppress('fullname');
 223                  foreach ($extrafields as $field) {
 224                      $table->column_suppress($field);
 225                  }
 226                  foreach ($nosort as $field) {
 227                      $table->no_sorting($field);
 228                  }
 229  
 230                  $table->no_sorting('start');
 231                  $table->no_sorting('finish');
 232                  $table->no_sorting('score');
 233                  $table->no_sorting('checkbox');
 234                  $table->no_sorting('picture');
 235  
 236                  foreach ($scoes as $sco) {
 237                      if ($sco->launch != '') {
 238                          $table->no_sorting('scograde'.$sco->id);
 239                      }
 240                  }
 241  
 242                  $table->column_class('picture', 'picture');
 243                  $table->column_class('fullname', 'bold');
 244                  $table->column_class('score', 'bold');
 245  
 246                  $table->set_attribute('cellspacing', '0');
 247                  $table->set_attribute('id', 'attempts');
 248                  $table->set_attribute('class', 'generaltable generalbox');
 249  
 250                  // Start working -- this is necessary as soon as the niceties are over.
 251                  $table->setup();
 252              } else if ($download == 'ODS') {
 253                  require_once("$CFG->libdir/odslib.class.php");
 254  
 255                  $filename .= ".ods";
 256                  // Creating a workbook.
 257                  $workbook = new \MoodleODSWorkbook("-");
 258                  // Sending HTTP headers.
 259                  $workbook->send($filename);
 260                  // Creating the first worksheet.
 261                  $sheettitle = get_string('report', 'scorm');
 262                  $myxls = $workbook->add_worksheet($sheettitle);
 263                  // Format types.
 264                  $format = $workbook->add_format();
 265                  $format->set_bold(0);
 266                  $formatbc = $workbook->add_format();
 267                  $formatbc->set_bold(1);
 268                  $formatbc->set_align('center');
 269                  $formatb = $workbook->add_format();
 270                  $formatb->set_bold(1);
 271                  $formaty = $workbook->add_format();
 272                  $formaty->set_bg_color('yellow');
 273                  $formatc = $workbook->add_format();
 274                  $formatc->set_align('center');
 275                  $formatr = $workbook->add_format();
 276                  $formatr->set_bold(1);
 277                  $formatr->set_color('red');
 278                  $formatr->set_align('center');
 279                  $formatg = $workbook->add_format();
 280                  $formatg->set_bold(1);
 281                  $formatg->set_color('green');
 282                  $formatg->set_align('center');
 283                  // Here starts workshhet headers.
 284  
 285                  $colnum = 0;
 286                  foreach ($headers as $item) {
 287                      $myxls->write(0, $colnum, $item, $formatbc);
 288                      $colnum++;
 289                  }
 290                  $rownum = 1;
 291              } else if ($download == 'Excel') {
 292                  require_once("$CFG->libdir/excellib.class.php");
 293  
 294                  $filename .= ".xls";
 295                  // Creating a workbook.
 296                  $workbook = new \MoodleExcelWorkbook("-");
 297                  // Sending HTTP headers.
 298                  $workbook->send($filename);
 299                  // Creating the first worksheet.
 300                  $sheettitle = get_string('report', 'scorm');
 301                  $myxls = $workbook->add_worksheet($sheettitle);
 302                  // Format types.
 303                  $format = $workbook->add_format();
 304                  $format->set_bold(0);
 305                  $formatbc = $workbook->add_format();
 306                  $formatbc->set_bold(1);
 307                  $formatbc->set_align('center');
 308                  $formatb = $workbook->add_format();
 309                  $formatb->set_bold(1);
 310                  $formaty = $workbook->add_format();
 311                  $formaty->set_bg_color('yellow');
 312                  $formatc = $workbook->add_format();
 313                  $formatc->set_align('center');
 314                  $formatr = $workbook->add_format();
 315                  $formatr->set_bold(1);
 316                  $formatr->set_color('red');
 317                  $formatr->set_align('center');
 318                  $formatg = $workbook->add_format();
 319                  $formatg->set_bold(1);
 320                  $formatg->set_color('green');
 321                  $formatg->set_align('center');
 322  
 323                  $colnum = 0;
 324                  foreach ($headers as $item) {
 325                      $myxls->write(0, $colnum, $item, $formatbc);
 326                      $colnum++;
 327                  }
 328                  $rownum = 1;
 329              } else if ($download == 'CSV') {
 330                  $csvexport = new \csv_export_writer("tab");
 331                  $csvexport->set_filename($filename, ".txt");
 332                  $csvexport->add_data($headers);
 333              }
 334  
 335              if (!$download) {
 336                  $sort = $table->get_sql_sort();
 337              } else {
 338                  $sort = '';
 339              }
 340              // Fix some wired sorting.
 341              if (empty($sort)) {
 342                  $sort = ' ORDER BY uniqueid';
 343              } else {
 344                  $sort = ' ORDER BY '.$sort;
 345              }
 346  
 347              if (!$download) {
 348                  // Add extra limits due to initials bar.
 349                  list($twhere, $tparams) = $table->get_sql_where();
 350                  if ($twhere) {
 351                      $where .= ' AND '.$twhere; // Initial bar.
 352                      $params = array_merge($params, $tparams);
 353                  }
 354  
 355                  if (!empty($countsql)) {
 356                      $count = $DB->get_record_sql($countsql, $params);
 357                      $totalinitials = $count->nbresults;
 358                      if ($twhere) {
 359                          $countsql .= ' AND '.$twhere;
 360                      }
 361                      $count = $DB->get_record_sql($countsql, $params);
 362                      $total  = $count->nbresults;
 363                  }
 364  
 365                  $table->pagesize($pagesize, $total);
 366  
 367                  echo \html_writer::start_div('scormattemptcounts');
 368                  if ( $count->nbresults == $count->nbattempts ) {
 369                      echo get_string('reportcountattempts', 'scorm', $count);
 370                  } else if ( $count->nbattempts > 0 ) {
 371                      echo get_string('reportcountallattempts', 'scorm', $count);
 372                  } else {
 373                      echo $count->nbusers.' '.get_string('users');
 374                  }
 375                  echo \html_writer::end_div();
 376              }
 377  
 378              // Fetch the attempts.
 379              if (!$download) {
 380                  $attempts = $DB->get_records_sql($select.$from.$where.$sort, $params,
 381                  $table->get_page_start(), $table->get_page_size());
 382                  echo \html_writer::start_div('', array('id' => 'scormtablecontainer'));
 383                  if ($candelete) {
 384                      // Start form.
 385                      $strreallydel  = addslashes_js(get_string('deleteattemptcheck', 'scorm'));
 386                      echo \html_writer::start_tag('form', array('id' => 'attemptsform', 'method' => 'post',
 387                                                                  'action' => $PAGE->url->out(false),
 388                                                                  'onsubmit' => 'return confirm("'.$strreallydel.'");'));
 389                      echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'action', 'value' => 'delete'));
 390                      echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
 391                      echo \html_writer::start_div('', array('style' => 'display: none;'));
 392                      echo \html_writer::input_hidden_params($PAGE->url);
 393                      echo \html_writer::end_div();
 394                      echo \html_writer::start_div();
 395                  }
 396                  $table->initialbars($totalinitials > 20); // Build table rows.
 397              } else {
 398                  $attempts = $DB->get_records_sql($select.$from.$where.$sort, $params);
 399              }
 400              if ($attempts) {
 401                  foreach ($attempts as $scouser) {
 402                      $row = array();
 403                      if (!empty($scouser->attempt)) {
 404                          $timetracks = scorm_get_sco_runtime($scorm->id, false, $scouser->userid, $scouser->attempt);
 405                      } else {
 406                          $timetracks = '';
 407                      }
 408                      if (in_array('checkbox', $columns)) {
 409                          if ($candelete && !empty($timetracks->start)) {
 410                              $row[] = $this->generate_row_checkbox('attemptid[]', "{$scouser->userid}:{$scouser->attempt}");
 411                          } else if ($candelete) {
 412                              $row[] = '';
 413                          }
 414                      }
 415                      if (in_array('picture', $columns)) {
 416                          $user = new \stdClass();
 417                          $additionalfields = explode(',', implode(',', \core_user\fields::get_picture_fields()));
 418                          $user = username_load_fields_from_object($user, $scouser, null, $additionalfields);
 419                          $user->id = $scouser->userid;
 420                          $row[] = $OUTPUT->user_picture($user, array('courseid' => $course->id));
 421                      }
 422                      if (!$download) {
 423                          $url = new \moodle_url('/user/view.php', array('id' => $scouser->userid, 'course' => $course->id));
 424                          $row[] = \html_writer::link($url, fullname($scouser));
 425                      } else {
 426                          $row[] = fullname($scouser);
 427                      }
 428                      foreach ($extrafields as $field) {
 429                          $row[] = s($scouser->{$field});
 430                      }
 431                      if (empty($timetracks->start)) {
 432                          $row[] = '-';
 433                          $row[] = '-';
 434                          $row[] = '-';
 435                          $row[] = '-';
 436                      } else {
 437                          if (!$download) {
 438                              $url = new \moodle_url('/mod/scorm/report/userreport.php', array('id' => $cm->id,
 439                                      'user' => $scouser->userid, 'attempt' => $scouser->attempt));
 440                              $row[] = \html_writer::link($url, $scouser->attempt);
 441                          } else {
 442                              $row[] = $scouser->attempt;
 443                          }
 444                          if ($download == 'ODS' || $download == 'Excel' ) {
 445                              $row[] = userdate($timetracks->start, get_string("strftimedatetime", "langconfig"));
 446                          } else {
 447                              $row[] = userdate($timetracks->start);
 448                          }
 449                          if ($download == 'ODS' || $download == 'Excel' ) {
 450                              $row[] = userdate($timetracks->finish, get_string('strftimedatetime', 'langconfig'));
 451                          } else {
 452                              $row[] = userdate($timetracks->finish);
 453                          }
 454                          $row[] = scorm_grade_user_attempt($scorm, $scouser->userid, $scouser->attempt);
 455                      }
 456                      // Print out all scores of attempt.
 457                      foreach ($scoes as $sco) {
 458                          if ($sco->launch != '') {
 459                              if ($trackdata = scorm_get_tracks($sco->id, $scouser->userid, $scouser->attempt)) {
 460                                  if ($trackdata->status == '') {
 461                                      $trackdata->status = 'notattempted';
 462                                  }
 463                                  $strstatus = get_string($trackdata->status, 'scorm');
 464  
 465                                  if ($trackdata->score_raw != '') { // If raw score exists, print it.
 466                                      $score = $trackdata->score_raw;
 467                                      // Add max score if it exists.
 468                                      if (isset($trackdata->score_max)) {
 469                                          $score .= '/'.$trackdata->score_max;
 470                                      }
 471  
 472                                  } else { // ...else print out status.
 473                                      $score = $strstatus;
 474                                  }
 475                                  if (!$download) {
 476                                      $url = new \moodle_url('/mod/scorm/report/userreporttracks.php', array('id' => $cm->id,
 477                                          'scoid' => $sco->id, 'user' => $scouser->userid, 'attempt' => $scouser->attempt));
 478                                      $row[] = $OUTPUT->pix_icon($trackdata->status, $strstatus, 'scorm') . '<br>' .
 479                                          \html_writer::link($url, $score, array('title' => get_string('details', 'scorm')));
 480                                  } else {
 481                                      $row[] = $score;
 482                                  }
 483                                  // Iterate over tracks and match objective id against values.
 484                                  $scorm2004 = false;
 485                                  if (scorm_version_check($scorm->version, SCORM_13)) {
 486                                      $scorm2004 = true;
 487                                      $objectiveprefix = "cmi.objectives.";
 488                                  } else {
 489                                      $objectiveprefix = "cmi.objectives_";
 490                                  }
 491  
 492                                  $keywords = array(".id", $objectiveprefix);
 493                                  $objectivestatus = array();
 494                                  $objectivescore = array();
 495                                  foreach ($trackdata as $name => $value) {
 496                                      if (strpos($name, $objectiveprefix) === 0 && strrpos($name, '.id') !== false) {
 497                                          $num = trim(str_ireplace($keywords, '', $name));
 498                                          if (is_numeric($num)) {
 499                                              if ($scorm2004) {
 500                                                  $element = $objectiveprefix.$num.'.completion_status';
 501                                              } else {
 502                                                  $element = $objectiveprefix.$num.'.status';
 503                                              }
 504                                              if (isset($trackdata->$element)) {
 505                                                  $objectivestatus[$value] = $trackdata->$element;
 506                                              } else {
 507                                                  $objectivestatus[$value] = '';
 508                                              }
 509                                              if ($displayoptions['objectivescore']) {
 510                                                  $element = $objectiveprefix.$num.'.score.raw';
 511                                                  if (isset($trackdata->$element)) {
 512                                                      $objectivescore[$value] = $trackdata->$element;
 513                                                  } else {
 514                                                      $objectivescore[$value] = '';
 515                                                  }
 516                                              }
 517                                          }
 518                                      }
 519                                  }
 520  
 521                                  // Interaction data.
 522                                  if (!empty($objectives[$trackdata->scoid])) {
 523                                      foreach ($objectives[$trackdata->scoid] as $name) {
 524                                          if (isset($objectivestatus[$name])) {
 525                                              $row[] = s($objectivestatus[$name]);
 526                                          } else {
 527                                              $row[] = $emptycell;
 528                                          }
 529                                          if ($displayoptions['objectivescore']) {
 530                                              if (isset($objectivescore[$name])) {
 531                                                  $row[] = s($objectivescore[$name]);
 532                                              } else {
 533                                                  $row[] = $emptycell;
 534                                              }
 535  
 536                                          }
 537                                      }
 538                                  }
 539                                  // End of interaction data.
 540                              } else {
 541                                  // If we don't have track data, we haven't attempted yet.
 542                                  $strstatus = get_string('notattempted', 'scorm');
 543                                  if (!$download) {
 544                                      $row[] = $OUTPUT->pix_icon('notattempted', $strstatus, 'scorm') . '<br>' . $strstatus;
 545                                  } else {
 546                                      $row[] = $strstatus;
 547                                  }
 548                                  // Complete the empty cells.
 549                                  for ($i = 0; $i < count($columns) - $nbmaincolumns; $i++) {
 550                                      $row[] = $emptycell;
 551                                  }
 552                              }
 553                          }
 554                      }
 555  
 556                      if (!$download) {
 557                          $table->add_data($row);
 558                      } else if ($download == 'Excel' or $download == 'ODS') {
 559                          $colnum = 0;
 560                          foreach ($row as $item) {
 561                              $myxls->write($rownum, $colnum, $item, $format);
 562                              $colnum++;
 563                          }
 564                          $rownum++;
 565                      } else if ($download == 'CSV') {
 566                          $csvexport->add_data($row);
 567                      }
 568                  }
 569                  if (!$download) {
 570                      $table->finish_output();
 571                      if ($candelete) {
 572                          echo \html_writer::start_tag('table', array('id' => 'commands'));
 573                          echo \html_writer::start_tag('tr').\html_writer::start_tag('td');
 574                          echo $this->generate_delete_selected_button();
 575                          echo \html_writer::end_tag('td').\html_writer::end_tag('tr').\html_writer::end_tag('table');
 576                          // Close form.
 577                          echo \html_writer::end_tag('div');
 578                          echo \html_writer::end_tag('form');
 579                      }
 580                      echo \html_writer::end_div();
 581                      if (!empty($attempts)) {
 582                          echo \html_writer::start_tag('table', array('class' => 'boxaligncenter')).\html_writer::start_tag('tr');
 583                          echo \html_writer::start_tag('td');
 584                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 585                                                                     array('download' => 'ODS') + $displayoptions),
 586                                                                     get_string('downloadods'),
 587                                                                     'post',
 588                                                                     ['class' => 'mt-1']);
 589                          echo \html_writer::end_tag('td');
 590                          echo \html_writer::start_tag('td');
 591                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 592                                                                     array('download' => 'Excel') + $displayoptions),
 593                                                                     get_string('downloadexcel'),
 594                                                                     'post',
 595                                                                     ['class' => 'mt-1']);
 596                          echo \html_writer::end_tag('td');
 597                          echo \html_writer::start_tag('td');
 598                          echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 599                                                                     array('download' => 'CSV') + $displayoptions),
 600                                                                     get_string('downloadtext'),
 601                                                                     'post',
 602                                                                     ['class' => 'mt-1']);
 603                          echo \html_writer::end_tag('td');
 604                          echo \html_writer::start_tag('td');
 605                          echo \html_writer::end_tag('td');
 606                          echo \html_writer::end_tag('tr').\html_writer::end_tag('table');
 607                      }
 608                  }
 609              } else {
 610                  if ($candelete && !$download) {
 611                      echo \html_writer::end_div();
 612                      echo \html_writer::end_tag('form');
 613                      $table->finish_output();
 614                  }
 615                  echo \html_writer::end_div();
 616              }
 617              // Show preferences form irrespective of attempts are there to report or not.
 618              if (!$download) {
 619                  $mform->set_data(compact('pagesize', 'attemptsmode'));
 620                  $mform->display();
 621              }
 622              if ($download == 'Excel' or $download == 'ODS') {
 623                  $workbook->close();
 624                  exit;
 625              } else if ($download == 'CSV') {
 626                  $csvexport->download_file();
 627                  exit;
 628              }
 629          } else {
 630              echo $OUTPUT->notification(get_string('noactivity', 'scorm'));
 631          }
 632      }// Function ends.
 633  }
 634  
 635  /**
 636   * Returns The maximum numbers of Objectives associated with an Scorm Pack
 637   *
 638   * @param int $scormid Scorm instance id
 639   * @return array an array of possible objectives.
 640   */
 641  function get_scorm_objectives($scormid) {
 642      global $DB;
 643      $objectives = array();
 644      $params = array();
 645      $select = "scormid = ? AND ";
 646      $select .= $DB->sql_like("element", "?", false);
 647      $params[] = $scormid;
 648      $params[] = "cmi.objectives%.id";
 649      $value = $DB->sql_compare_text('value');
 650      $rs = $DB->get_recordset_select("scorm_scoes_track", $select, $params, 'value', "DISTINCT $value AS value, scoid");
 651      if ($rs->valid()) {
 652          foreach ($rs as $record) {
 653              $objectives[$record->scoid][] = $record->value;
 654          }
 655          // Now naturally sort the sco arrays.
 656          foreach ($objectives as $scoid => $sco) {
 657              natsort($objectives[$scoid]);
 658          }
 659      }
 660      $rs->close();
 661      return $objectives;
 662  }