mod/scorm/report/interactions/classes/report.php

   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         $nostudents = false;
 101
 102         if (empty($currentgroup)) {
 103             // All users who can attempt scoes.
 104             if (!$students = get_users_by_capability($contextmodule, 'mod/scorm:savetrack', 'u.id', '', '', '', '', '', false)) {
 105                 echo $OUTPUT->notification(get_string('nostudentsyet'));
 106                 $nostudents = true;
 107                 $allowedlist = '';
 108             } else {
 109                 $allowedlist = array_keys($students);
 110             }
 111             unset($students);
 112         } else {
 113             // All users who can attempt scoes and who are in the currently selected group.
 114             if (!$groupstudents = get_users_by_capability($contextmodule,
 115                                                             'mod/scorm:savetrack', 'u.id', '', '', '',
 116                                                             $currentgroup, '', false)) {
 117                 echo $OUTPUT->notification(get_string('nostudentsingroup'));
 118                 $nostudents = true;
 119                 $groupstudents = array();
 120             }
 121             $allowedlist = array_keys($groupstudents);
 122             unset($groupstudents);
 123         }
 124         if ( !$nostudents ) {
 125             // Now check if asked download of data.
 126             $coursecontext = \context_course::instance($course->id);
 127             if ($download) {
 128                 $filename = clean_filename("$course->shortname ".format_string($scorm->name, true, $formattextoptions));
 129             }
 130
 131             // Define table columns.
 132             $columns = array();
 133             $headers = array();
 134             if (!$download && $candelete) {
 135                 $columns[] = 'checkbox';
 136                 $headers[] = null;
 137             }
 138             if (!$download && $CFG->grade_report_showuserimage) {
 139                 $columns[] = 'picture';
 140                 $headers[] = '';
 141             }
 142             $columns[] = 'fullname';
 143             $headers[] = get_string('name');
 144
 145             $extrafields = get_extra_user_fields($coursecontext);
 146             foreach ($extrafields as $field) {
 147                 $columns[] = $field;
 148                 $headers[] = get_user_field_name($field);
 149             }
 150             $columns[] = 'attempt';
 151             $headers[] = get_string('attempt', 'scorm');
 152             $columns[] = 'start';
 153             $headers[] = get_string('started', 'scorm');
 154             $columns[] = 'finish';
 155             $headers[] = get_string('last', 'scorm');
 156             $columns[] = 'score';
 157             $headers[] = get_string('score', 'scorm');
 158             $scoes = $DB->get_records('scorm_scoes', array("scorm" => $scorm->id), 'sortorder, id');
 159             foreach ($scoes as $sco) {
 160                 if ($sco->launch != '') {
 161                     $columns[] = 'scograde'.$sco->id;
 162                     $headers[] = format_string($sco->title, '', $formattextoptions);
 163                 }
 164             }
 165
 166             $params = array();
 167             list($usql, $params) = $DB->get_in_or_equal($allowedlist, SQL_PARAMS_NAMED);
 168             // Construct the SQL.
 169             $select = 'SELECT DISTINCT '.$DB->sql_concat('u.id', '\'#\'', 'COALESCE(st.attempt, 0)').' AS uniqueid, ';
 170             $select .= 'st.scormid AS scormid, st.attempt AS attempt, ' .
 171                     \user_picture::fields('u', array('idnumber'), 'userid') .
 172                     get_extra_user_fields_sql($coursecontext, 'u', '', array('email', 'idnumber')) . ' ';
 173
 174             // This part is the same for all cases - join users and scorm_scoes_track tables.
 175             $from = 'FROM {user} u ';
 176             $from .= 'LEFT JOIN {scorm_scoes_track} st ON st.userid = u.id AND st.scormid = '.$scorm->id;
 177             switch ($attemptsmode) {
 178                 case SCORM_REPORT_ATTEMPTS_STUDENTS_WITH:
 179                     // Show only students with attempts.
 180                     $where = ' WHERE u.id ' .$usql. ' AND st.userid IS NOT NULL';
 181                     break;
 182                 case SCORM_REPORT_ATTEMPTS_STUDENTS_WITH_NO:
 183                     // Show only students without attempts.
 184                     $where = ' WHERE u.id ' .$usql. ' AND st.userid IS NULL';
 185                     break;
 186                 case SCORM_REPORT_ATTEMPTS_ALL_STUDENTS:
 187                     // Show all students with or without attempts.
 188                     $where = ' WHERE u.id ' .$usql. ' AND (st.userid IS NOT NULL OR st.userid IS NULL)';
 189                     break;
 190             }
 191
 192             $countsql = 'SELECT COUNT(DISTINCT('.$DB->sql_concat('u.id', '\'#\'', 'COALESCE(st.attempt, 0)').')) AS nbresults, ';
 193             $countsql .= 'COUNT(DISTINCT('.$DB->sql_concat('u.id', '\'#\'', 'st.attempt').')) AS nbattempts, ';
 194             $countsql .= 'COUNT(DISTINCT(u.id)) AS nbusers ';
 195             $countsql .= $from.$where;
 196             $questioncount = get_scorm_question_count($scorm->id);
 197             $nbmaincolumns = count($columns);
 198             for ($id = 0; $id < $questioncount; $id++) {
 199                 if ($displayoptions['qtext']) {
 200                     $columns[] = 'question' . $id;
 201                     $headers[] = get_string('questionx', 'scormreport_interactions', $id);
 202                 }
 203                 if ($displayoptions['resp']) {
 204                     $columns[] = 'response' . $id;
 205                     $headers[] = get_string('responsex', 'scormreport_interactions', $id);
 206                 }
 207                 if ($displayoptions['right']) {
 208                     $columns[] = 'right' . $id;
 209                     $headers[] = get_string('rightanswerx', 'scormreport_interactions', $id);
 210                 }
 211                 if ($displayoptions['result']) {
 212                     $columns[] = 'result' . $id;
 213                     $headers[] = get_string('resultx', 'scormreport_interactions', $id);
 214                 }
 215             }
 216
 217             if (!$download) {
 218                 $table = new \flexible_table('mod-scorm-report');
 219
 220                 $table->define_columns($columns);
 221                 $table->define_headers($headers);
 222                 $table->define_baseurl($PAGE->url);
 223
 224                 $table->sortable(true);
 225                 $table->collapsible(true);
 226
 227                 // This is done to prevent redundant data, when a user has multiple attempts.
 228                 $table->column_suppress('picture');
 229                 $table->column_suppress('fullname');
 230                 foreach ($extrafields as $field) {
 231                     $table->column_suppress($field);
 232                 }
 233
 234                 $table->no_sorting('start');
 235                 $table->no_sorting('finish');
 236                 $table->no_sorting('score');
 237                 $table->no_sorting('checkbox');
 238                 $table->no_sorting('picture');
 239
 240                 for ($id = 0; $id < $questioncount; $id++) {
 241                     if ($displayoptions['qtext']) {
 242                         $table->no_sorting('question'.$id);
 243                     }
 244                     if ($displayoptions['resp']) {
 245                         $table->no_sorting('response'.$id);
 246                     }
 247                     if ($displayoptions['right']) {
 248                         $table->no_sorting('right'.$id);
 249                     }
 250                     if ($displayoptions['result']) {
 251                         $table->no_sorting('result'.$id);
 252                     }
 253                 }
 254
 255                 foreach ($scoes as $sco) {
 256                     if ($sco->launch != '') {
 257                         $table->no_sorting('scograde'.$sco->id);
 258                     }
 259                 }
 260
 261                 $table->column_class('picture', 'picture');
 262                 $table->column_class('fullname', 'bold');
 263                 $table->column_class('score', 'bold');
 264
 265                 $table->set_attribute('cellspacing', '0');
 266                 $table->set_attribute('id', 'attempts');
 267                 $table->set_attribute('class', 'generaltable generalbox');
 268
 269                 // Start working -- this is necessary as soon as the niceties are over.
 270                 $table->setup();
 271             } else if ($download == 'ODS') {
 272                 require_once("$CFG->libdir/odslib.class.php");
 273
 274                 $filename .= ".ods";
 275                 // Creating a workbook.
 276                 $workbook = new \MoodleODSWorkbook("-");
 277                 // Sending HTTP headers.
 278                 $workbook->send($filename);
 279                 // Creating the first worksheet.
 280                 $sheettitle = get_string('report', 'scorm');
 281                 $myxls = $workbook->add_worksheet($sheettitle);
 282                 // Format types.
 283                 $format = $workbook->add_format();
 284                 $format->set_bold(0);
 285                 $formatbc = $workbook->add_format();
 286                 $formatbc->set_bold(1);
 287                 $formatbc->set_align('center');
 288                 $formatb = $workbook->add_format();
 289                 $formatb->set_bold(1);
 290                 $formaty = $workbook->add_format();
 291                 $formaty->set_bg_color('yellow');
 292                 $formatc = $workbook->add_format();
 293                 $formatc->set_align('center');
 294                 $formatr = $workbook->add_format();
 295                 $formatr->set_bold(1);
 296                 $formatr->set_color('red');
 297                 $formatr->set_align('center');
 298                 $formatg = $workbook->add_format();
 299                 $formatg->set_bold(1);
 300                 $formatg->set_color('green');
 301                 $formatg->set_align('center');
 302                 // Here starts workshhet headers.
 303
 304                 $colnum = 0;
 305                 foreach ($headers as $item) {
 306                     $myxls->write(0, $colnum, $item, $formatbc);
 307                     $colnum++;
 308                 }
 309                 $rownum = 1;
 310             } else if ($download == 'Excel') {
 311                 require_once("$CFG->libdir/excellib.class.php");
 312
 313                 $filename .= ".xls";
 314                 // Creating a workbook.
 315                 $workbook = new \MoodleExcelWorkbook("-");
 316                 // Sending HTTP headers.
 317                 $workbook->send($filename);
 318                 // Creating the first worksheet.
 319                 $sheettitle = get_string('report', 'scorm');
 320                 $myxls = $workbook->add_worksheet($sheettitle);
 321                 // Format types.
 322                 $format = $workbook->add_format();
 323                 $format->set_bold(0);
 324                 $formatbc = $workbook->add_format();
 325                 $formatbc->set_bold(1);
 326                 $formatbc->set_align('center');
 327                 $formatb = $workbook->add_format();
 328                 $formatb->set_bold(1);
 329                 $formaty = $workbook->add_format();
 330                 $formaty->set_bg_color('yellow');
 331                 $formatc = $workbook->add_format();
 332                 $formatc->set_align('center');
 333                 $formatr = $workbook->add_format();
 334                 $formatr->set_bold(1);
 335                 $formatr->set_color('red');
 336                 $formatr->set_align('center');
 337                 $formatg = $workbook->add_format();
 338                 $formatg->set_bold(1);
 339                 $formatg->set_color('green');
 340                 $formatg->set_align('center');
 341
 342                 $colnum = 0;
 343                 foreach ($headers as $item) {
 344                     $myxls->write(0, $colnum, $item, $formatbc);
 345                     $colnum++;
 346                 }
 347                 $rownum = 1;
 348             } else if ($download == 'CSV') {
 349                 $csvexport = new \csv_export_writer("tab");
 350                 $csvexport->set_filename($filename, ".txt");
 351                 $csvexport->add_data($headers);
 352             }
 353
 354             if (!$download) {
 355                 $sort = $table->get_sql_sort();
 356             } else {
 357                 $sort = '';
 358             }
 359             // Fix some wired sorting.
 360             if (empty($sort)) {
 361                 $sort = ' ORDER BY uniqueid';
 362             } else {
 363                 $sort = ' ORDER BY '.$sort;
 364             }
 365
 366             if (!$download) {
 367                 // Add extra limits due to initials bar.
 368                 list($twhere, $tparams) = $table->get_sql_where();
 369                 if ($twhere) {
 370                     $where .= ' AND '.$twhere; // Initial bar.
 371                     $params = array_merge($params, $tparams);
 372                 }
 373
 374                 if (!empty($countsql)) {
 375                     $count = $DB->get_record_sql($countsql, $params);
 376                     $totalinitials = $count->nbresults;
 377                     if ($twhere) {
 378                         $countsql .= ' AND '.$twhere;
 379                     }
 380                     $count = $DB->get_record_sql($countsql, $params);
 381                     $total  = $count->nbresults;
 382                 }
 383
 384                 $table->pagesize($pagesize, $total);
 385
 386                 echo \html_writer::start_div('scormattemptcounts');
 387                 if ( $count->nbresults == $count->nbattempts ) {
 388                     echo get_string('reportcountattempts', 'scorm', $count);
 389                 } else if ( $count->nbattempts > 0 ) {
 390                     echo get_string('reportcountallattempts', 'scorm', $count);
 391                 } else {
 392                     echo $count->nbusers.' '.get_string('users');
 393                 }
 394                 echo \html_writer::end_div();
 395             }
 396
 397             // Fetch the attempts.
 398             if (!$download) {
 399                 $attempts = $DB->get_records_sql($select.$from.$where.$sort, $params,
 400                 $table->get_page_start(), $table->get_page_size());
 401                 echo \html_writer::start_div('', array('id' => 'scormtablecontainer'));
 402                 if ($candelete) {
 403                     // Start form.
 404                     $strreallydel  = addslashes_js(get_string('deleteattemptcheck', 'scorm'));
 405                     echo \html_writer::start_tag('form', array('id' => 'attemptsform', 'method' => 'post',
 406                                                                 'action' => $PAGE->url->out(false),
 407                                                                 'onsubmit' => 'return confirm("'.$strreallydel.'");'));
 408                     echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'action', 'value' => 'delete'));
 409                     echo \html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
 410                     echo \html_writer::start_div('', array('style' => 'display: none;'));
 411                     echo \html_writer::input_hidden_params($PAGE->url);
 412                     echo \html_writer::end_div();
 413                     echo \html_writer::start_div();
 414                 }
 415                 $table->initialbars($totalinitials > 20); // Build table rows.
 416             } else {
 417                 $attempts = $DB->get_records_sql($select.$from.$where.$sort, $params);
 418             }
 419             if ($attempts) {
 420                 foreach ($attempts as $scouser) {
 421                     $row = array();
 422                     if (!empty($scouser->attempt)) {
 423                         $timetracks = scorm_get_sco_runtime($scorm->id, false, $scouser->userid, $scouser->attempt);
 424                     } else {
 425                         $timetracks = '';
 426                     }
 427                     if (in_array('checkbox', $columns)) {
 428                         if ($candelete && !empty($timetracks->start)) {
 429                             $row[] = \html_writer::checkbox('attemptid[]', $scouser->userid . ':' . $scouser->attempt, false);
 430                         } else if ($candelete) {
 431                             $row[] = '';
 432                         }
 433                     }
 434                     if (in_array('picture', $columns)) {
 435                         $user = new \stdClass();
 436                         $additionalfields = explode(',', \user_picture::fields());
 437                         $user = username_load_fields_from_object($user, $scouser, null, $additionalfields);
 438                         $user->id = $scouser->userid;
 439                         $row[] = $OUTPUT->user_picture($user, array('courseid' => $course->id));
 440                     }
 441                     if (!$download) {
 442                         $url = new \moodle_url('/user/view.php', array('id' => $scouser->userid, 'course' => $course->id));
 443                         $row[] = \html_writer::link($url, fullname($scouser));
 444                     } else {
 445                         $row[] = fullname($scouser);
 446                     }
 447                     foreach ($extrafields as $field) {
 448                         $row[] = s($scouser->{$field});
 449                     }
 450                     if (empty($timetracks->start)) {
 451                         $row[] = '-';
 452                         $row[] = '-';
 453                         $row[] = '-';
 454                         $row[] = '-';
 455                     } else {
 456                         if (!$download) {
 457                             $url = new \moodle_url('/mod/scorm/report/userreport.php',
 458                                                     array('id' => $cm->id,
 459                                                         'user' => $scouser->userid,
 460                                                         'attempt' => $scouser->attempt));
 461                             $row[] = \html_writer::link($url, $scouser->attempt);
 462                         } else {
 463                             $row[] = $scouser->attempt;
 464                         }
 465                         if ($download == 'ODS' || $download == 'Excel' ) {
 466                             $row[] = userdate($timetracks->start, get_string("strftimedatetime", "langconfig"));
 467                         } else {
 468                             $row[] = userdate($timetracks->start);
 469                         }
 470                         if ($download == 'ODS' || $download == 'Excel' ) {
 471                             $row[] = userdate($timetracks->finish, get_string('strftimedatetime', 'langconfig'));
 472                         } else {
 473                             $row[] = userdate($timetracks->finish);
 474                         }
 475                         $row[] = scorm_grade_user_attempt($scorm, $scouser->userid, $scouser->attempt);
 476                     }
 477                     // Print out all scores of attempt.
 478                     $emptyrow = $download ? '' : '&nbsp;';
 479                     foreach ($scoes as $sco) {
 480                         if ($sco->launch != '') {
 481                             if ($trackdata = scorm_get_tracks($sco->id, $scouser->userid, $scouser->attempt)) {
 482                                 if ($trackdata->status == '') {
 483                                     $trackdata->status = 'notattempted';
 484                                 }
 485                                 $strstatus = get_string($trackdata->status, 'scorm');
 486                                 // If raw score exists, print it.
 487                                 if ($trackdata->score_raw != '') {
 488                                     $score = $trackdata->score_raw;
 489                                     // Add max score if it exists.
 490                                     if (isset($trackdata->score_max)) {
 491                                         $score .= '/'.$trackdata->score_max;
 492                                     }
 493                                 } else { // Else print out status.
 494                                     $score = $strstatus;
 495                                 }
 496                                 if (!$download) {
 497                                     $url = new \moodle_url('/mod/scorm/report/userreporttracks.php', array('id' => $cm->id,
 498                                         'scoid' => $sco->id, 'user' => $scouser->userid, 'attempt' => $scouser->attempt));
 499                                     $row[] = $OUTPUT->pix_icon($trackdata->status, $strstatus, 'scorm') . '<br>' .
 500                                         \html_writer::link($url, $score, array('title' => get_string('details', 'scorm')));
 501                                 } else {
 502                                     $row[] = $score;
 503                                 }
 504                                 // Interaction data.
 505                                 for ($i = 0; $i < $questioncount; $i++) {
 506                                     if ($displayoptions['qtext']) {
 507                                         $element = 'cmi.interactions_'.$i.'.id';
 508                                         if (isset($trackdata->$element)) {
 509                                             $row[] = s($trackdata->$element);
 510                                         } else {
 511                                             $row[] = $emptyrow;
 512                                         }
 513                                     }
 514                                     if ($displayoptions['resp']) {
 515                                         $element = 'cmi.interactions_'.$i.'.student_response';
 516                                         if (isset($trackdata->$element)) {
 517                                             $row[] = s($trackdata->$element);
 518                                         } else {
 519                                             $row[] = $emptyrow;
 520                                         }
 521                                     }
 522                                     if ($displayoptions['right']) {
 523                                         $j = 0;
 524                                         $element = 'cmi.interactions_'.$i.'.correct_responses_'.$j.'.pattern';
 525                                         $rightans = '';
 526                                         if (isset($trackdata->$element)) {
 527                                             while (isset($trackdata->$element)) {
 528                                                 if ($j > 0) {
 529                                                     $rightans .= ',';
 530                                                 }
 531                                                 $rightans .= s($trackdata->$element);
 532                                                 $j++;
 533                                                 $element = 'cmi.interactions_'.$i.'.correct_responses_'.$j.'.pattern';
 534                                             }
 535                                             $row[] = $rightans;
 536                                         } else {
 537                                             $row[] = $emptyrow;
 538                                         }
 539                                     }
 540                                     if ($displayoptions['result']) {
 541                                         $element = 'cmi.interactions_'.$i.'.result';
 542                                         if (isset($trackdata->$element)) {
 543                                             $row[] = s($trackdata->$element);
 544                                         } else {
 545                                             $row[] = $emptyrow;
 546                                         }
 547                                     }
 548                                 }
 549                                 // End of interaction data.
 550                             } else {
 551                                 // If we don't have track data, we haven't attempted yet.
 552                                 $strstatus = get_string('notattempted', 'scorm');
 553                                 if (!$download) {
 554                                     $row[] = $OUTPUT->pix_icon('notattempted', $strstatus, 'scorm') . '<br>' . $strstatus;
 555                                 } else {
 556                                     $row[] = $strstatus;
 557                                 }
 558                                 // Complete the empty cells.
 559                                 for ($i = 0; $i < count($columns) - $nbmaincolumns; $i++) {
 560                                     $row[] = $emptyrow;
 561                                 }
 562                             }
 563                         }
 564                     }
 565
 566                     if (!$download) {
 567                         $table->add_data($row);
 568                     } else if ($download == 'Excel' or $download == 'ODS') {
 569                         $colnum = 0;
 570                         foreach ($row as $item) {
 571                             $myxls->write($rownum, $colnum, $item, $format);
 572                             $colnum++;
 573                         }
 574                         $rownum++;
 575                     } else if ($download == 'CSV') {
 576                         $csvexport->add_data($row);
 577                     }
 578                 }
 579                 if (!$download) {
 580                     $table->finish_output();
 581                     if ($candelete) {
 582                         echo \html_writer::start_tag('table', array('id' => 'commands'));
 583                         echo \html_writer::start_tag('tr').\html_writer::start_tag('td');
 584                         echo \html_writer::link('#', get_string('selectall', 'scorm'), array('id' => 'checkattempts'));
 585                         echo ' / ';
 586                         echo \html_writer::link('#', get_string('selectnone', 'scorm'), array('id' => 'uncheckattempts'));
 587                         $PAGE->requires->js_amd_inline("
 588                         require(['jquery'], function($) {
 589                             $('#checkattempts').click(function(e) {
 590                                 $('#attemptsform').find('input:checkbox').prop('checked', true);
 591                                 e.preventDefault();
 592                             });
 593                             $('#uncheckattempts').click(function(e) {
 594                                 $('#attemptsform').find('input:checkbox').prop('checked', false);
 595                                 e.preventDefault();
 596                             });
 597                         });");
 598                         echo '&nbsp;&nbsp;';
 599                         echo \html_writer::empty_tag('input', array('type' => 'submit',
 600                                                                     'value' => get_string('deleteselected', 'scorm'),
 601                                                                     'class' => 'btn btn-secondary'));
 602                         echo \html_writer::end_tag('td').\html_writer::end_tag('tr').\html_writer::end_tag('table');
 603                         // Close form.
 604                         echo \html_writer::end_tag('div');
 605                         echo \html_writer::end_tag('form');
 606                     }
 607                     echo \html_writer::end_div();
 608                     if (!empty($attempts)) {
 609                         echo \html_writer::start_tag('table', array('class' => 'boxaligncenter')).\html_writer::start_tag('tr');
 610                         echo \html_writer::start_tag('td');
 611                         echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 612                                                                    array('download' => 'ODS') + $displayoptions),
 613                                                                    get_string('downloadods'),
 614                                                                    'post',
 615                                                                    ['class' => 'mt-1']);
 616                         echo \html_writer::end_tag('td');
 617                         echo \html_writer::start_tag('td');
 618                         echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 619                                                                    array('download' => 'Excel') + $displayoptions),
 620                                                                    get_string('downloadexcel'),
 621                                                                    'post',
 622                                                                    ['class' => 'mt-1']);
 623                         echo \html_writer::end_tag('td');
 624                         echo \html_writer::start_tag('td');
 625                         echo $OUTPUT->single_button(new \moodle_url($PAGE->url,
 626                                                                    array('download' => 'CSV') + $displayoptions),
 627                                                                    get_string('downloadtext'),
 628                                                                    'post',
 629                                                                    ['class' => 'mt-1']);
 630                         echo \html_writer::end_tag('td');
 631                         echo \html_writer::start_tag('td');
 632                         echo \html_writer::end_tag('td');
 633                         echo \html_writer::end_tag('tr').\html_writer::end_tag('table');
 634                     }
 635                 }
 636             } else {
 637                 if ($candelete && !$download) {
 638                     echo \html_writer::end_div();
 639                     echo \html_writer::end_tag('form');
 640                     $table->finish_output();
 641                 }
 642                 echo \html_writer::end_div();
 643             }
 644             // Show preferences form irrespective of attempts are there to report or not.
 645             if (!$download) {
 646                 $mform->set_data(compact('pagesize', 'attemptsmode'));
 647                 $mform->display();
 648             }
 649             if ($download == 'Excel' or $download == 'ODS') {
 650                 $workbook->close();
 651                 exit;
 652             } else if ($download == 'CSV') {
 653                 $csvexport->download_file();
 654                 exit;
 655             }
 656         } else {
 657             echo $OUTPUT->notification(get_string('noactivity', 'scorm'));
 658         }
 659     }// Function ends.
 660 }