mod/lesson/view.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 /**
  19  * This page prints a particular instance of lesson
  20  *
  21  * @package mod_lesson
  22  * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or late
  24  **/
  25
  26 require_once(dirname(__FILE__) . '/../../config.php');
  27 require_once($CFG->dirroot.'/mod/lesson/locallib.php');
  28 require_once($CFG->dirroot.'/mod/lesson/view_form.php');
  29 require_once($CFG->libdir . '/completionlib.php');
  30 require_once($CFG->libdir . '/grade/constants.php');
  31
  32 $id      = required_param('id', PARAM_INT);             // Course Module ID
  33 $pageid  = optional_param('pageid', null, PARAM_INT);   // Lesson Page ID
  34 $edit    = optional_param('edit', -1, PARAM_BOOL);
  35 $userpassword = optional_param('userpassword','',PARAM_RAW);
  36 $backtocourse = optional_param('backtocourse', false, PARAM_RAW);
  37
  38 $cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
  39 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  40 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
  41
  42 require_login($course, false, $cm);
  43
  44 if ($backtocourse) {
  45     redirect(new moodle_url('/course/view.php', array('id'=>$course->id)));
  46 }
  47
  48 // Apply overrides.
  49 $lesson->update_effective_access($USER->id);
  50
  51 // Mark as viewed
  52 $completion = new completion_info($course);
  53 $completion->set_module_viewed($cm);
  54
  55 $url = new moodle_url('/mod/lesson/view.php', array('id'=>$id));
  56 if ($pageid !== null) {
  57     $url->param('pageid', $pageid);
  58 }
  59 $PAGE->set_url($url);
  60
  61 $context = context_module::instance($cm->id);
  62 $canmanage = has_capability('mod/lesson:manage', $context);
  63
  64 $lessonoutput = $PAGE->get_renderer('mod_lesson');
  65
  66 $reviewmode = false;
  67 $userhasgrade = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id));
  68 if ($userhasgrade && !$lesson->retake) {
  69     $reviewmode = true;
  70 }
  71
  72 /// Check these for students only TODO: Find a better method for doing this!
  73 ///     Check lesson availability
  74 ///     Check for password
  75 ///     Check dependencies
  76 if (!$canmanage) {
  77     if (!$lesson->is_accessible()) {  // Deadline restrictions
  78         echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('notavailable'));
  79         if ($lesson->deadline != 0 && time() > $lesson->deadline) {
  80             echo $lessonoutput->lesson_inaccessible(get_string('lessonclosed', 'lesson', userdate($lesson->deadline)));
  81         } else {
  82             echo $lessonoutput->lesson_inaccessible(get_string('lessonopen', 'lesson', userdate($lesson->available)));
  83         }
  84         echo $lessonoutput->footer();
  85         exit();
  86     } else if ($lesson->usepassword && empty($USER->lessonloggedin[$lesson->id])) { // Password protected lesson code
  87         $correctpass = false;
  88         if (!empty($userpassword) && (($lesson->password == md5(trim($userpassword))) || ($lesson->password == trim($userpassword)))) {
  89             require_sesskey();
  90             // with or without md5 for backward compatibility (MDL-11090)
  91             $correctpass = true;
  92             $USER->lessonloggedin[$lesson->id] = true;
  93
  94         } else if (isset($lesson->extrapasswords)) {
  95
  96             // Group overrides may have additional passwords.
  97             foreach ($lesson->extrapasswords as $password) {
  98                 if (strcmp($password, md5(trim($userpassword))) === 0 || strcmp($password, trim($userpassword)) === 0) {
  99                     require_sesskey();
 100                     $correctpass = true;
 101                     $USER->lessonloggedin[$lesson->id] = true;
 102                 }
 103             }
 104         }
 105         if (!$correctpass) {
 106             echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('passwordprotectedlesson', 'lesson', format_string($lesson->name)));
 107             echo $lessonoutput->login_prompt($lesson, $userpassword !== '');
 108             echo $lessonoutput->footer();
 109             exit();
 110         }
 111     } else if ($lesson->dependency) { // check for dependencies
 112         if ($dependentlesson = $DB->get_record('lesson', array('id' => $lesson->dependency))) {
 113             // lesson exists, so we can proceed
 114             $conditions = unserialize($lesson->conditions);
 115             // assume false for all
 116             $errors = array();
 117
 118             // check for the timespent condition
 119             if ($conditions->timespent) {
 120                 $timespent = false;
 121                 if ($attempttimes = $DB->get_records('lesson_timer', array("userid"=>$USER->id, "lessonid"=>$dependentlesson->id))) {
 122                     // go through all the times and test to see if any of them satisfy the condition
 123                     foreach($attempttimes as $attempttime) {
 124                         $duration = $attempttime->lessontime - $attempttime->starttime;
 125                         if ($conditions->timespent < $duration/60) {
 126                             $timespent = true;
 127                         }
 128                     }
 129                 }
 130                 if (!$timespent) {
 131                     $errors[] = get_string('timespenterror', 'lesson', $conditions->timespent);
 132                 }
 133             }
 134
 135             // check for the gradebetterthan condition
 136             if($conditions->gradebetterthan) {
 137                 $gradebetterthan = false;
 138                 if ($studentgrades = $DB->get_records('lesson_grades', array("userid"=>$USER->id, "lessonid"=>$dependentlesson->id))) {
 139                     // go through all the grades and test to see if any of them satisfy the condition
 140                     foreach($studentgrades as $studentgrade) {
 141                         if ($studentgrade->grade >= $conditions->gradebetterthan) {
 142                             $gradebetterthan = true;
 143                         }
 144                     }
 145                 }
 146                 if (!$gradebetterthan) {
 147                     $errors[] = get_string('gradebetterthanerror', 'lesson', $conditions->gradebetterthan);
 148                 }
 149             }
 150
 151             // check for the completed condition
 152             if ($conditions->completed) {
 153                 if (!$DB->count_records('lesson_grades', array('userid'=>$USER->id, 'lessonid'=>$dependentlesson->id))) {
 154                     $errors[] = get_string('completederror', 'lesson');
 155                 }
 156             }
 157
 158             if (!empty($errors)) {  // print out the errors if any
 159                 echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('completethefollowingconditions', 'lesson', format_string($lesson->name)));
 160                 echo $lessonoutput->dependancy_errors($dependentlesson, $errors);
 161                 echo $lessonoutput->footer();
 162                 exit();
 163             }
 164         }
 165     }
 166 }
 167
 168     // this is called if a student leaves during a lesson
 169 if ($pageid == LESSON_UNSEENBRANCHPAGE) {
 170     $pageid = lesson_unseen_question_jump($lesson, $USER->id, $pageid);
 171 }
 172
 173 // display individual pages and their sets of answers
 174 // if pageid is EOL then the end of the lesson has been reached
 175 // for flow, changed to simple echo for flow styles, michaelp, moved lesson name and page title down
 176 $attemptflag = false;
 177 if (empty($pageid)) {
 178     // make sure there are pages to view
 179     if (!$DB->get_field('lesson_pages', 'id', array('lessonid' => $lesson->id, 'prevpageid' => 0))) {
 180         if (!$canmanage) {
 181             $lesson->add_message(get_string('lessonnotready2', 'lesson')); // a nice message to the student
 182         } else {
 183             if (!$DB->count_records('lesson_pages', array('lessonid'=>$lesson->id))) {
 184                 redirect("$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id"); // no pages - redirect to add pages
 185             } else {
 186                 $lesson->add_message(get_string('lessonpagelinkingbroken', 'lesson'));  // ok, bad mojo
 187             }
 188         }
 189     }
 190
 191     // if no pageid given see if the lesson has been started
 192     $retries = $DB->count_records('lesson_grades', array("lessonid" => $lesson->id, "userid" => $USER->id));
 193     if ($retries > 0) {
 194         $attemptflag = true;
 195     }
 196
 197     if (isset($USER->modattempts[$lesson->id])) {
 198         unset($USER->modattempts[$lesson->id]);  // if no pageid, then student is NOT reviewing
 199     }
 200
 201     // If there are any questions that have been answered correctly (or not) in this attempt.
 202     $allattempts = $lesson->get_attempts($retries);
 203     if (!empty($allattempts)) {
 204         $attempt = end($allattempts);
 205         $attemptpage = $lesson->load_page($attempt->pageid);
 206         $jumpto = $DB->get_field('lesson_answers', 'jumpto', array('id' => $attempt->answerid));
 207         // convert the jumpto to a proper page id
 208         if ($jumpto == 0) {
 209             // Check if a question has been incorrectly answered AND no more attempts at it are left.
 210             $nattempts = $lesson->get_attempts($attempt->retry, false, $attempt->pageid, $USER->id);
 211             if (count($nattempts) >= $lesson->maxattempts) {
 212                 $lastpageseen = $lesson->get_next_page($attemptpage->nextpageid);
 213             } else {
 214                 $lastpageseen = $attempt->pageid;
 215             }
 216         } elseif ($jumpto == LESSON_NEXTPAGE) {
 217             $lastpageseen = $lesson->get_next_page($attemptpage->nextpageid);
 218         } else if ($jumpto == LESSON_CLUSTERJUMP) {
 219             $lastpageseen = $lesson->cluster_jump($attempt->pageid);
 220         } else {
 221             $lastpageseen = $jumpto;
 222         }
 223     }
 224
 225     if ($branchtables = $DB->get_records('lesson_branch', array("lessonid" => $lesson->id, "userid" => $USER->id, "retry" => $retries), 'timeseen DESC')) {
 226         // in here, user has viewed a branch table
 227         $lastbranchtable = current($branchtables);
 228         if (count($allattempts) > 0) {
 229             if ($lastbranchtable->timeseen > $attempt->timeseen) {
 230                 // This branch table was viewed more recently than the question page.
 231                 if (!empty($lastbranchtable->nextpageid)) {
 232                     $lastpageseen = $lastbranchtable->nextpageid;
 233                 } else {
 234                     // Next page ID did not exist prior to MDL-34006.
 235                     $lastpageseen = $lastbranchtable->pageid;
 236                 }
 237             }
 238         } else {
 239             // Has not answered any questions but has viewed a branch table.
 240             if (!empty($lastbranchtable->nextpageid)) {
 241                 $lastpageseen = $lastbranchtable->nextpageid;
 242             } else {
 243                 // Next page ID did not exist prior to MDL-34006.
 244                 $lastpageseen = $lastbranchtable->pageid;
 245             }
 246         }
 247     }
 248     // Check to see if end of lesson was reached.
 249     if ((isset($lastpageseen) && ($lastpageseen != LESSON_EOL))) {
 250         if (($DB->count_records('lesson_attempts', array('lessonid' => $lesson->id, 'userid' => $USER->id, 'retry' => $retries)) > 0)
 251                 || $DB->count_records('lesson_branch', array("lessonid" => $lesson->id, "userid" => $USER->id, "retry" => $retries)) > 0) {
 252
 253             echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('leftduringtimedsession', 'lesson'));
 254             if ($lesson->timelimit) {
 255                 if ($lesson->retake) {
 256                     $continuelink = new single_button(new moodle_url('/mod/lesson/view.php',
 257                             array('id' => $cm->id, 'pageid' => $lesson->firstpageid, 'startlastseen' => 'no')),
 258                             get_string('continue', 'lesson'), 'get');
 259
 260                     echo html_writer::div($lessonoutput->message(get_string('leftduringtimed', 'lesson'), $continuelink),
 261                             'center leftduring');
 262
 263                 } else {
 264                     $courselink = new single_button(new moodle_url('/course/view.php',
 265                             array('id' => $PAGE->course->id)), get_string('returntocourse', 'lesson'), 'get');
 266
 267                     echo html_writer::div($lessonoutput->message(get_string('leftduringtimednoretake', 'lesson'), $courselink),
 268                             'center leftduring');
 269                 }
 270             } else {
 271                 echo $lessonoutput->continue_links($lesson, $lastpageseen);
 272             }
 273             echo $lessonoutput->footer();
 274             exit();
 275         }
 276     }
 277
 278     if ($attemptflag) {
 279         if (!$lesson->retake) {
 280             echo $lessonoutput->header($lesson, $cm, 'view', '', null, get_string("noretake", "lesson"));
 281             $courselink = new single_button(new moodle_url('/course/view.php', array('id'=>$PAGE->course->id)), get_string('returntocourse', 'lesson'), 'get');
 282             echo $lessonoutput->message(get_string("noretake", "lesson"), $courselink);
 283             echo $lessonoutput->footer();
 284             exit();
 285         }
 286     }
 287     // start at the first page
 288     if (!$pageid = $DB->get_field('lesson_pages', 'id', array('lessonid' => $lesson->id, 'prevpageid' => 0))) {
 289             print_error('cannotfindfirstpage', 'lesson');
 290     }
 291     /// This is the code for starting a timed test
 292     if(!isset($USER->startlesson[$lesson->id]) && !$canmanage) {
 293         $lesson->start_timer();
 294     }
 295 }
 296
 297 $currenttab = 'view';
 298 $extraeditbuttons = false;
 299 $lessonpageid = null;
 300 $timer = null;
 301
 302 if ($pageid != LESSON_EOL) {
 303     /// This is the code updates the lessontime for a timed test
 304     $startlastseen = optional_param('startlastseen', '', PARAM_ALPHA);
 305
 306     $page = $lesson->load_page($pageid);
 307     // Check if the page is of a special type and if so take any nessecary action
 308     $newpageid = $page->callback_on_view($canmanage);
 309     if (is_numeric($newpageid)) {
 310         $page = $lesson->load_page($newpageid);
 311     }
 312
 313     // Trigger module viewed event.
 314     $event = \mod_lesson\event\course_module_viewed::create(array(
 315         'objectid' => $lesson->id,
 316         'context' => $context
 317     ));
 318     $event->add_record_snapshot('course_modules', $cm);
 319     $event->add_record_snapshot('course', $course);
 320     $event->trigger();
 321
 322     // This is where several messages (usually warnings) are displayed
 323     // all of this is displayed above the actual page
 324
 325     // check to see if the user can see the left menu
 326     if (!$canmanage) {
 327         $lesson->displayleft = lesson_displayleftif($lesson);
 328
 329         $continue = ($startlastseen !== '');
 330         $restart  = ($continue && $startlastseen == 'yes');
 331         $timer = $lesson->update_timer($continue, $restart);
 332
 333         if ($lesson->timelimit) {
 334             $timeleft = $timer->starttime + $lesson->timelimit - time();
 335             if ($timeleft <= 0) {
 336                 // Out of time
 337                 $lesson->add_message(get_string('eolstudentoutoftime', 'lesson'));
 338                 redirect(new moodle_url('/mod/lesson/view.php', array('id'=>$cm->id,'pageid'=>LESSON_EOL, 'outoftime'=>'normal')));
 339                 die; // Shouldn't be reached, but make sure
 340             } else if ($timeleft < 60) {
 341                 // One minute warning
 342                 $lesson->add_message(get_string('studentoneminwarning', 'lesson'));
 343             }
 344         }
 345
 346         if ($page->qtype == LESSON_PAGE_BRANCHTABLE && $lesson->minquestions) {
 347             // tell student how many questions they have seen, how many are required and their grade
 348             $ntries = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id));
 349             $gradeinfo = lesson_grade($lesson, $ntries);
 350             if ($gradeinfo->attempts) {
 351                 if ($gradeinfo->nquestions < $lesson->minquestions) {
 352                     $a = new stdClass;
 353                     $a->nquestions   = $gradeinfo->nquestions;
 354                     $a->minquestions = $lesson->minquestions;
 355                     $lesson->add_message(get_string('numberofpagesviewednotice', 'lesson', $a));
 356                 }
 357
 358                 if (!$reviewmode && !$lesson->retake){
 359                     $lesson->add_message(get_string("numberofcorrectanswers", "lesson", $gradeinfo->earned), 'notify');
 360                     if ($lesson->grade != GRADE_TYPE_NONE) {
 361                         $a = new stdClass;
 362                         $a->grade = number_format($gradeinfo->grade * $lesson->grade / 100, 1);
 363                         $a->total = $lesson->grade;
 364                         $lesson->add_message(get_string('yourcurrentgradeisoutof', 'lesson', $a), 'notify');
 365                     }
 366                 }
 367             }
 368         }
 369     } else {
 370         $timer = null;
 371         if ($lesson->timelimit) {
 372             $lesson->add_message(get_string('teachertimerwarning', 'lesson'));
 373         }
 374         if (lesson_display_teacher_warning($lesson)) {
 375             // This is the warning msg for teachers to inform them that cluster
 376             // and unseen does not work while logged in as a teacher
 377             $warningvars = new stdClass();
 378             $warningvars->cluster = get_string('clusterjump', 'lesson');
 379             $warningvars->unseen = get_string('unseenpageinbranch', 'lesson');
 380             $lesson->add_message(get_string('teacherjumpwarning', 'lesson', $warningvars));
 381         }
 382     }
 383
 384     $PAGE->set_subpage($page->id);
 385     $currenttab = 'view';
 386     $extraeditbuttons = true;
 387     $lessonpageid = $page->id;
 388     $extrapagetitle = $page->title;
 389
 390     if (($edit != -1) && $PAGE->user_allowed_editing()) {
 391         $USER->editing = $edit;
 392     }
 393
 394     if (is_array($page->answers) && count($page->answers)>0) {
 395         // this is for modattempts option.  Find the users previous answer to this page,
 396         //   and then display it below in answer processing
 397         if (isset($USER->modattempts[$lesson->id])) {
 398             $retries = $DB->count_records('lesson_grades', array("lessonid"=>$lesson->id, "userid"=>$USER->id));
 399             if (!$attempts = $lesson->get_attempts($retries-1, false, $page->id)) {
 400                 print_error('cannotfindpreattempt', 'lesson');
 401             }
 402             $attempt = end($attempts);
 403             $USER->modattempts[$lesson->id] = $attempt;
 404         } else {
 405             $attempt = false;
 406         }
 407         $lessoncontent = $lessonoutput->display_page($lesson, $page, $attempt);
 408     } else {
 409         $data = new stdClass;
 410         $data->id = $PAGE->cm->id;
 411         $data->pageid = $page->id;
 412         $data->newpageid = $lesson->get_next_page($page->nextpageid);
 413
 414         $customdata = array(
 415             'title'     => $page->title,
 416             'contents'  => $page->get_contents()
 417         );
 418         $mform = new lesson_page_without_answers($CFG->wwwroot.'/mod/lesson/continue.php', $customdata);
 419         $mform->set_data($data);
 420         ob_start();
 421         $mform->display();
 422         $lessoncontent = ob_get_contents();
 423         ob_end_clean();
 424     }
 425
 426     lesson_add_fake_blocks($PAGE, $cm, $lesson, $timer);
 427     echo $lessonoutput->header($lesson, $cm, $currenttab, $extraeditbuttons, $lessonpageid, $extrapagetitle);
 428     if ($attemptflag) {
 429         // We are using level 3 header because attempt heading is a sub-heading of lesson title (MDL-30911).
 430         echo $OUTPUT->heading(get_string('attempt', 'lesson', $retries), 3);
 431     }
 432     /// This calculates and prints the ongoing score
 433     if ($lesson->ongoing && !empty($pageid) && !$reviewmode) {
 434         echo $lessonoutput->ongoing_score($lesson);
 435     }
 436     if ($lesson->displayleft) {
 437         echo '<a name="maincontent" id="maincontent" title="' . get_string('anchortitle', 'lesson') . '"></a>';
 438     }
 439     echo $lessoncontent;
 440     echo $lessonoutput->progress_bar($lesson);
 441     echo $lessonoutput->footer();
 442
 443 } else {
 444
 445     $lessoncontent = '';
 446     // end of lesson reached work out grade
 447     // Used to check to see if the student ran out of time
 448     $outoftime = optional_param('outoftime', '', PARAM_ALPHA);
 449
 450     $ntries = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id));
 451     if (isset($USER->modattempts[$lesson->id])) {
 452         $ntries--;  // need to look at the old attempts :)
 453     }
 454     $gradelesson = true;
 455     $gradeinfo = lesson_grade($lesson, $ntries);
 456     if ($lesson->custom && !$canmanage) {
 457         // Before we calculate the custom score make sure they answered the minimum
 458         // number of questions. We only need to do this for custom scoring as we can
 459         // not get the miniumum score the user should achieve. If we are not using
 460         // custom scoring (so all questions are valued as 1) then we simply check if
 461         // they answered more than the minimum questions, if not, we mark it out of the
 462         // number specified in the minimum questions setting - which is done in lesson_grade().
 463         // Get the number of answers given.
 464         if ($gradeinfo->nquestions < $lesson->minquestions) {
 465             $gradelesson = false;
 466             $a = new stdClass;
 467             $a->nquestions = $gradeinfo->nquestions;
 468             $a->minquestions = $lesson->minquestions;
 469             $lessoncontent .= $OUTPUT->box_start('generalbox boxaligncenter');
 470             $lesson->add_message(get_string('numberofpagesviewednotice', 'lesson', $a));
 471         }
 472     }
 473     if ($gradelesson) {
 474         // We are using level 3 header because the page title is a sub-heading of lesson title (MDL-30911).
 475         $lessoncontent .= $OUTPUT->heading(get_string("congratulations", "lesson"), 3);
 476         $lessoncontent .= $OUTPUT->box_start('generalbox boxaligncenter');
 477     }
 478     if (!$canmanage) {
 479         if ($gradelesson) {
 480             // Store this now before any modifications to pages viewed.
 481             $progressbar = $lessonoutput->progress_bar($lesson);
 482             // Update the clock / get time information for this user.
 483             $lesson->stop_timer();
 484
 485             // Update completion state.
 486             $completion = new completion_info($course);
 487             if ($completion->is_enabled($cm) && $lesson->completionendreached) {
 488                 $completion->update_state($cm, COMPLETION_COMPLETE);
 489             }
 490
 491             if ($lesson->completiontimespent > 0) {
 492                 $duration = $DB->get_field_sql(
 493                     "SELECT SUM(lessontime - starttime)
 494                                    FROM {lesson_timer}
 495                                   WHERE lessonid = :lessonid
 496                                     AND userid = :userid",
 497                     array('userid' => $USER->id, 'lessonid' => $lesson->id));
 498                 if (!$duration) {
 499                     $duration = 0;
 500                 }
 501
 502                 // If student has not spend enough time in the lesson, display a message.
 503                 if ($duration < $lesson->completiontimespent) {
 504                     $a = new stdClass;
 505                     $a->timespent = format_time($duration);
 506                     $a->timerequired = format_time($lesson->completiontimespent);
 507                     $lessoncontent .= $lessonoutput->paragraph(get_string("notenoughtimespent", "lesson", $a), 'center');
 508                 }
 509             }
 510
 511
 512             if ($gradeinfo->attempts) {
 513                 if (!$lesson->custom) {
 514                     $lessoncontent .= $lessonoutput->paragraph(get_string("numberofpagesviewed", "lesson", $gradeinfo->nquestions), 'center');
 515                     if ($lesson->minquestions) {
 516                         if ($gradeinfo->nquestions < $lesson->minquestions) {
 517                             // print a warning and set nviewed to minquestions
 518                             $lessoncontent .= $lessonoutput->paragraph(get_string("youshouldview", "lesson", $lesson->minquestions), 'center');
 519                         }
 520                     }
 521                     $lessoncontent .= $lessonoutput->paragraph(get_string("numberofcorrectanswers", "lesson", $gradeinfo->earned), 'center');
 522                 }
 523                 $a = new stdClass;
 524                 $a->score = $gradeinfo->earned;
 525                 $a->grade = $gradeinfo->total;
 526                 if ($gradeinfo->nmanual) {
 527                     $a->tempmaxgrade = $gradeinfo->total - $gradeinfo->manualpoints;
 528                     $a->essayquestions = $gradeinfo->nmanual;
 529                     $lessoncontent .= $OUTPUT->box(get_string("displayscorewithessays", "lesson", $a), 'center');
 530                 } else {
 531                     $lessoncontent .= $OUTPUT->box(get_string("displayscorewithoutessays", "lesson", $a), 'center');
 532                 }
 533                 if ($lesson->grade != GRADE_TYPE_NONE) {
 534                     $a = new stdClass;
 535                     $a->grade = number_format($gradeinfo->grade * $lesson->grade / 100, 1);
 536                     $a->total = $lesson->grade;
 537                     $lessoncontent .= $lessonoutput->paragraph(get_string("yourcurrentgradeisoutof", "lesson", $a), 'center');
 538                 }
 539
 540                 $grade = new stdClass();
 541                 $grade->lessonid = $lesson->id;
 542                 $grade->userid = $USER->id;
 543                 $grade->grade = $gradeinfo->grade;
 544                 $grade->completed = time();
 545                 if (isset($USER->modattempts[$lesson->id])) { // If reviewing, make sure update old grade record.
 546                     if (!$grades = $DB->get_records("lesson_grades",
 547                         array("lessonid" => $lesson->id, "userid" => $USER->id), "completed DESC", '*', 0, 1)) {
 548                         print_error('cannotfindgrade', 'lesson');
 549                     }
 550                     $oldgrade = array_shift($grades);
 551                     $grade->id = $oldgrade->id;
 552                     $DB->update_record("lesson_grades", $grade);
 553                 } else {
 554                     $newgradeid = $DB->insert_record("lesson_grades", $grade);
 555                 }
 556             } else {
 557                 if ($lesson->timelimit) {
 558                     if ($outoftime == 'normal') {
 559                         $grade = new stdClass();
 560                         $grade->lessonid = $lesson->id;
 561                         $grade->userid = $USER->id;
 562                         $grade->grade = 0;
 563                         $grade->completed = time();
 564                         $newgradeid = $DB->insert_record("lesson_grades", $grade);
 565                         $lessoncontent .= $lessonoutput->paragraph(get_string("eolstudentoutoftimenoanswers", "lesson"));
 566                     }
 567                 } else {
 568                     $lessoncontent .= $lessonoutput->paragraph(get_string("welldone", "lesson"));
 569                 }
 570             }
 571
 572             // update central gradebook
 573             lesson_update_grades($lesson, $USER->id);
 574             $lessoncontent .= $progressbar;
 575         }
 576     } else {
 577         // display for teacher
 578         if ($lesson->grade != GRADE_TYPE_NONE) {
 579             $lessoncontent .= $lessonoutput->paragraph(get_string("displayofgrade", "lesson"), 'center');
 580         }
 581     }
 582     $lessoncontent .= $OUTPUT->box_end(); //End of Lesson button to Continue.
 583
 584     if ($lesson->modattempts && !$canmanage) {
 585         // make sure if the student is reviewing, that he/she sees the same pages/page path that he/she saw the first time
 586         // look at the attempt records to find the first QUESTION page that the user answered, then use that page id
 587         // to pass to view again.  This is slick cause it wont call the empty($pageid) code
 588         // $ntries is decremented above
 589         if (!$attempts = $lesson->get_attempts($ntries)) {
 590             $attempts = array();
 591             $url = new moodle_url('/mod/lesson/view.php', array('id'=>$PAGE->cm->id));
 592         } else {
 593             $firstattempt = current($attempts);
 594             $pageid = $firstattempt->pageid;
 595             // IF the student wishes to review, need to know the last question page that the student answered.  This will help to make
 596             // sure that the student can leave the lesson via pushing the continue button.
 597             $lastattempt = end($attempts);
 598             $USER->modattempts[$lesson->id] = $lastattempt->pageid;
 599
 600             $url = new moodle_url('/mod/lesson/view.php', array('id'=>$PAGE->cm->id, 'pageid'=>$pageid));
 601         }
 602         $lessoncontent .= html_writer::link($url, get_string('reviewlesson', 'lesson'), array('class' => 'centerpadded lessonbutton standardbutton'));
 603     } elseif ($lesson->modattempts && $canmanage) {
 604         $lessoncontent .= $lessonoutput->paragraph(get_string("modattemptsnoteacher", "lesson"), 'centerpadded');
 605     }
 606
 607     if ($lesson->activitylink) {
 608         $lessoncontent .= $lesson->link_for_activitylink();
 609     }
 610
 611     $url = new moodle_url('/course/view.php', array('id'=>$course->id));
 612     $lessoncontent .= html_writer::link($url, get_string('returnto', 'lesson', format_string($course->fullname, true)), array('class'=>'centerpadded lessonbutton standardbutton'));
 613
 614     if (has_capability('gradereport/user:view', context_course::instance($course->id))
 615             && $course->showgrades && $lesson->grade != 0 && !$lesson->practice) {
 616         $url = new moodle_url('/grade/index.php', array('id' => $course->id));
 617         $lessoncontent .= html_writer::link($url, get_string('viewgrades', 'lesson'),
 618             array('class' => 'centerpadded lessonbutton standardbutton'));
 619     }
 620
 621     lesson_add_fake_blocks($PAGE, $cm, $lesson, $timer);
 622     echo $lessonoutput->header($lesson, $cm, $currenttab, $extraeditbuttons, $lessonpageid, get_string("congratulations", "lesson"));
 623     echo $lessoncontent;
 624     echo $lessonoutput->footer();
 625 }