mod/lesson/continue.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  * Action for processing page answers by users
  20  *
  21  * @package mod_lesson
  22  * @copyright  2009 Sam Hemelryk
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  **/
  25
  26 /** Require the specific libraries */
  27 require_once("../../config.php");
  28 require_once($CFG->dirroot.'/mod/lesson/locallib.php');
  29
  30 $id = required_param('id', PARAM_INT);
  31
  32 $cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
  33 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  34 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
  35
  36 require_login($course, false, $cm);
  37 require_sesskey();
  38
  39 $context = context_module::instance($cm->id);
  40 $canmanage = has_capability('mod/lesson:manage', $context);
  41 $lessonoutput = $PAGE->get_renderer('mod_lesson');
  42
  43 $url = new moodle_url('/mod/lesson/continue.php', array('id'=>$cm->id));
  44 $PAGE->set_url($url);
  45 $PAGE->navbar->add(get_string('continue', 'lesson'));
  46
  47 // This is the code updates the lesson time for a timed test
  48 // get time information for this user
  49 if (!$canmanage) {
  50     $lesson->displayleft = lesson_displayleftif($lesson);
  51     $timer = $lesson->update_timer();
  52     if ($lesson->timed) {
  53         $timeleft = ($timer->starttime + $lesson->maxtime * 60) - time();
  54         if ($timeleft <= 0) {
  55             // Out of time
  56             $lesson->add_message(get_string('eolstudentoutoftime', 'lesson'));
  57             redirect(new moodle_url('/mod/lesson/view.php', array('id'=>$cm->id,'pageid'=>LESSON_EOL, 'outoftime'=>'normal')));
  58         } else if ($timeleft < 60) {
  59             // One minute warning
  60             $lesson->add_message(get_string("studentoneminwarning", "lesson"));
  61         }
  62     }
  63 } else {
  64     $timer = new stdClass;
  65 }
  66
  67 // record answer (if necessary) and show response (if none say if answer is correct or not)
  68 $page = $lesson->load_page(required_param('pageid', PARAM_INT));
  69
  70 $userhasgrade = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id));
  71 $reviewmode = false;
  72 if ($userhasgrade && !$lesson->retake) {
  73     $reviewmode = true;
  74 }
  75
  76 // Check the page has answers [MDL-25632]
  77 if (count($page->answers) > 0) {
  78     $result = $page->record_attempt($context);
  79 } else {
  80     // The page has no answers so we will just progress to the next page in the
  81     // sequence (as set by newpageid).
  82     $result = new stdClass;
  83     $result->newpageid       = optional_param('newpageid', $page->nextpageid, PARAM_INT);
  84     $result->nodefaultresponse  = true;
  85 }
  86
  87 if (isset($USER->modattempts[$lesson->id])) {
  88     // make sure if the student is reviewing, that he/she sees the same pages/page path that he/she saw the first time
  89     if ($USER->modattempts[$lesson->id]->pageid == $page->id && $page->nextpageid == 0) {  // remember, this session variable holds the pageid of the last page that the user saw
  90         $result->newpageid = LESSON_EOL;
  91     } else {
  92         $nretakes = $DB->count_records("lesson_grades", array("lessonid"=>$lesson->id, "userid"=>$USER->id));
  93         $nretakes--; // make sure we are looking at the right try.
  94         $attempts = $DB->get_records("lesson_attempts", array("lessonid"=>$lesson->id, "userid"=>$USER->id, "retry"=>$nretakes), "timeseen", "id, pageid");
  95         $found = false;
  96         $temppageid = 0;
  97         // Make sure that the newpageid always defaults to something valid.
  98         $result->newpageid = LESSON_EOL;
  99         foreach($attempts as $attempt) {
 100             if ($found && $temppageid != $attempt->pageid) { // now try to find the next page, make sure next few attempts do no belong to current page
 101                 $result->newpageid = $attempt->pageid;
 102                 break;
 103             }
 104             if ($attempt->pageid == $page->id) {
 105                 $found = true; // if found current page
 106                 $temppageid = $attempt->pageid;
 107             }
 108         }
 109     }
 110 } elseif ($result->newpageid != LESSON_CLUSTERJUMP && $page->id != 0 && $result->newpageid > 0) {
 111     // going to check to see if the page that the user is going to view next, is a cluster page.
 112     // If so, dont display, go into the cluster.  The $result->newpageid > 0 is used to filter out all of the negative code jumps.
 113     $newpage = $lesson->load_page($result->newpageid);
 114     if ($newpageid = $newpage->override_next_page($result->newpageid)) {
 115         $result->newpageid = $newpageid;
 116     }
 117 } elseif ($result->newpageid == LESSON_UNSEENBRANCHPAGE) {
 118     if ($canmanage) {
 119         if ($page->nextpageid == 0) {
 120             $result->newpageid = LESSON_EOL;
 121         } else {
 122             $result->newpageid = $page->nextpageid;
 123         }
 124     } else {
 125         $result->newpageid = lesson_unseen_question_jump($lesson, $USER->id, $page->id);
 126     }
 127 } elseif ($result->newpageid == LESSON_PREVIOUSPAGE) {
 128     $result->newpageid = $page->prevpageid;
 129 } elseif ($result->newpageid == LESSON_RANDOMPAGE) {
 130     $result->newpageid = lesson_random_question_jump($lesson, $page->id);
 131 } elseif ($result->newpageid == LESSON_CLUSTERJUMP) {
 132     if ($canmanage) {
 133         if ($page->nextpageid == 0) {  // if teacher, go to next page
 134             $result->newpageid = LESSON_EOL;
 135         } else {
 136             $result->newpageid = $page->nextpageid;
 137         }
 138     } else {
 139         $result->newpageid = $lesson->cluster_jump($page->id);
 140     }
 141 }
 142
 143 if ($result->nodefaultresponse) {
 144     // Don't display feedback
 145     redirect(new moodle_url('/mod/lesson/view.php', array('id'=>$cm->id,'pageid'=>$result->newpageid)));
 146 }
 147
 148 /// Set Messages
 149
 150 if ($canmanage) {
 151     // This is the warning msg for teachers to inform them that cluster and unseen does not work while logged in as a teacher
 152     if(lesson_display_teacher_warning($lesson)) {
 153         $warningvars = new stdClass();
 154         $warningvars->cluster = get_string("clusterjump", "lesson");
 155         $warningvars->unseen = get_string("unseenpageinbranch", "lesson");
 156         $lesson->add_message(get_string("teacherjumpwarning", "lesson", $warningvars));
 157     }
 158     // Inform teacher that s/he will not see the timer
 159     if ($lesson->timed) {
 160         $lesson->add_message(get_string("teachertimerwarning", "lesson"));
 161     }
 162 }
 163 // Report attempts remaining
 164 if ($result->attemptsremaining != 0 && !$lesson->review && !$reviewmode) {
 165     $lesson->add_message(get_string('attemptsremaining', 'lesson', $result->attemptsremaining));
 166 }
 167 // Report if max attempts reached
 168 if ($result->maxattemptsreached != 0 && !$lesson->review && !$reviewmode) {
 169     $lesson->add_message('('.get_string("maximumnumberofattemptsreached", "lesson").')');
 170 }
 171
 172 $PAGE->set_url('/mod/lesson/view.php', array('id' => $cm->id, 'pageid' => $page->id));
 173 $PAGE->set_subpage($page->id);
 174
 175 /// Print the header, heading and tabs
 176 lesson_add_fake_blocks($PAGE, $cm, $lesson, $timer);
 177 echo $lessonoutput->header($lesson, $cm, 'view', true, $page->id, get_string('continue', 'lesson'));
 178
 179 if ($lesson->displayleft) {
 180     echo '<a name="maincontent" id="maincontent" title="'.get_string('anchortitle', 'lesson').'"></a>';
 181 }
 182 // This calculates and prints the ongoing score message
 183 if ($lesson->ongoing && !$reviewmode) {
 184     echo $lessonoutput->ongoing_score($lesson);
 185 }
 186 echo $result->feedback;
 187
 188 // User is modifying attempts - save button and some instructions
 189 if (isset($USER->modattempts[$lesson->id])) {
 190     $url = $CFG->wwwroot.'/mod/lesson/view.php';
 191     $content = $OUTPUT->box(get_string("gotoendoflesson", "lesson"), 'center');
 192     $content .= $OUTPUT->box(get_string("or", "lesson"), 'center');
 193     $content .= $OUTPUT->box(get_string("continuetonextpage", "lesson"), 'center');
 194     $content .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'id', 'value'=>$cm->id));
 195     $content .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'pageid', 'value'=>LESSON_EOL));
 196     $content .= html_writer::empty_tag('input', array('type'=>'submit', 'name'=>'submit', 'value'=>get_string('finish', 'lesson')));
 197     echo html_writer::tag('form', "<div>$content</div>", array('method'=>'post', 'action'=>$url));
 198 }
 199
 200 // Review button back
 201 if (!$result->correctanswer && !$result->noanswer && !$result->isessayquestion && !$reviewmode && $lesson->review) {
 202     $url = $CFG->wwwroot.'/mod/lesson/view.php';
 203     $content = html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'id', 'value'=>$cm->id));
 204     $content .= html_writer::empty_tag('input', array('type'=>'hidden', 'name'=>'pageid', 'value'=>$page->id));
 205     $content .= html_writer::empty_tag('input', array('type'=>'submit', 'name'=>'submit', 'value'=>get_string('reviewquestionback', 'lesson')));
 206     echo html_writer::tag('form', "<div class=\"singlebutton\">$content</div>", array('method'=>'post', 'action'=>$url));
 207 }
 208
 209 $url = new moodle_url('/mod/lesson/view.php', array('id'=>$cm->id, 'pageid'=>$result->newpageid));
 210 if ($lesson->review && !$result->correctanswer && !$result->noanswer && !$result->isessayquestion) {
 211     // Review button continue
 212     echo $OUTPUT->single_button($url, get_string('reviewquestioncontinue', 'lesson'));
 213 } else {
 214     // Normal continue button
 215     echo $OUTPUT->single_button($url, get_string('continue', 'lesson'));
 216 }
 217
 218 echo $lessonoutput->footer();