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/** Branch Table page */ define("LESSON_PAGE_BRANCHTABLE", "20"); class lesson_page_type_branchtable extends lesson_page { protected $type = lesson_page::TYPE_STRUCTURE; protected $typeid = LESSON_PAGE_BRANCHTABLE; protected $typeidstring = 'branchtable'; protected $string = null; protected $jumpto = null; public function get_typeid() { return $this->typeid; } public function get_typestring() { if ($this->string===null) { $this->string = get_string($this->typeidstring, 'lesson'); } return $this->string; } /** * Gets an array of the jumps used by the answers of this page * * @return array */ public function get_jumps() { global $DB; $jumps = array(); $params = array ("lessonid" => $this->lesson->id, "pageid" => $this->properties->id); if ($answers = $this->get_answers()) { foreach ($answers as $answer) { if ($answer->answer === '') { // show only jumps for real branches (==have description) continue; } $jumps[] = $this->get_jump_name($answer->jumpto); } } else { // We get here is the lesson was created on a Moodle 1.9 site and // the lesson contains question pages without any answers. $jumps[] = $this->get_jump_name($this->properties->nextpageid); } return $jumps; } public static function get_jumptooptions($firstpage, lesson $lesson) { global $DB, $PAGE; $jump = array(); $jump[0] = get_string("thispage", "lesson"); $jump[LESSON_NEXTPAGE] = get_string("nextpage", "lesson"); $jump[LESSON_PREVIOUSPAGE] = get_string("previouspage", "lesson"); $jump[LESSON_EOL] = get_string("endoflesson", "lesson"); $jump[LESSON_UNSEENBRANCHPAGE] = get_string("unseenpageinbranch", "lesson"); $jump[LESSON_RANDOMPAGE] = get_string("randompageinbranch", "lesson"); $jump[LESSON_RANDOMBRANCH] = get_string("randombranch", "lesson"); if (!$firstpage) { if (!$apageid = $DB->get_field("lesson_pages", "id", array("lessonid" => $lesson->id, "prevpageid" => 0))) { throw new \moodle_exception('cannotfindfirstpage', 'lesson'); } while (true) { if ($apageid) { $title = $DB->get_field("lesson_pages", "title", array("id" => $apageid)); $jump[$apageid] = $title; $apageid = $DB->get_field("lesson_pages", "nextpageid", array("id" => $apageid)); } else { // last page reached break; } } } return $jump; } public function get_idstring() { return $this->typeidstring; } public function display($renderer, $attempt) { global $PAGE, $CFG; $output = ''; $options = new stdClass; $options->para = false; $options->noclean = true; if ($this->lesson->slideshow) { $output .= $renderer->slideshow_start($this->lesson); } // The heading level depends on whether the theme's activity header displays a heading (usually the activity name). $headinglevel = $PAGE->activityheader->get_heading_level(); $output .= $renderer->heading(format_string($this->properties->title), $headinglevel); $output .= $renderer->box($this->get_contents(), 'contents'); $buttons = array(); $i = 0; foreach ($this->get_answers() as $answer) { if ($answer->answer === '') { // not a branch! continue; } $params = array(); $params['id'] = $PAGE->cm->id; $params['pageid'] = $this->properties->id; $params['sesskey'] = sesskey(); $params['jumpto'] = $answer->jumpto; $url = new moodle_url('/mod/lesson/continue.php', $params); $buttons[] = $renderer->single_button($url, strip_tags(format_text($answer->answer, FORMAT_MOODLE, $options))); $i++; } // Set the orientation if ($this->properties->layout) { $buttonshtml = $renderer->box(implode("\n", $buttons), 'branchbuttoncontainer horizontal'); } else { $buttonshtml = $renderer->box(implode("\n", $buttons), 'branchbuttoncontainer vertical'); } $output .= $buttonshtml; if ($this->lesson->slideshow) { $output .= $renderer->slideshow_end(); } // Trigger an event: content page viewed. $eventparams = array( 'context' => context_module::instance($PAGE->cm->id), 'objectid' => $this->properties->id ); $event = \mod_lesson\event\content_page_viewed::create($eventparams); $event->trigger(); return $output; } public function check_answer() { global $USER, $DB, $PAGE, $CFG; $result = parent::check_answer(); require_sesskey(); $newpageid = optional_param('jumpto', null, PARAM_INT); // going to insert into lesson_branch if ($newpageid == LESSON_RANDOMBRANCH) { $branchflag = 1; } else { $branchflag = 0; } if ($grades = $DB->get_records("lesson_grades", array("lessonid" => $this->lesson->id, "userid" => $USER->id), "grade DESC")) { $retries = count($grades); } else { $retries = 0; } // First record this page in lesson_branch. This record may be needed by lesson_unseen_branch_jump. $branch = new stdClass; $branch->lessonid = $this->lesson->id; $branch->userid = $USER->id; $branch->pageid = $this->properties->id; $branch->retry = $retries; $branch->flag = $branchflag; $branch->timeseen = time(); $branch->nextpageid = 0; // Next page id will be set later. $branch->id = $DB->insert_record("lesson_branch", $branch); // this is called when jumping to random from a branch table $context = context_module::instance($PAGE->cm->id); if($newpageid == LESSON_UNSEENBRANCHPAGE) { if (has_capability('mod/lesson:manage', $context)) { $newpageid = LESSON_NEXTPAGE; } else { $newpageid = lesson_unseen_question_jump($this->lesson, $USER->id, $this->properties->id); // this may return 0 } } // convert jumpto page into a proper page id if ($newpageid == 0) { $newpageid = $this->properties->id; } elseif ($newpageid == LESSON_NEXTPAGE) { if (!$newpageid = $this->nextpageid) { // no nextpage go to end of lesson $newpageid = LESSON_EOL; } } elseif ($newpageid == LESSON_PREVIOUSPAGE) { $newpageid = $this->prevpageid; } elseif ($newpageid == LESSON_RANDOMPAGE) { $newpageid = lesson_random_question_jump($this->lesson, $this->properties->id); } elseif ($newpageid == LESSON_RANDOMBRANCH) { $newpageid = lesson_unseen_branch_jump($this->lesson, $USER->id); } // Update record to set nextpageid. $branch->nextpageid = $newpageid; $DB->update_record("lesson_branch", $branch); // This will force to redirect to the newpageid. $result->inmediatejump = true; $result->newpageid = $newpageid; return $result; } public function display_answers(html_table $table) { $answers = $this->get_answers(); $options = new stdClass; $options->noclean = true; $options->para = false; $i = 1; foreach ($answers as $answer) { if ($answer->answer === '') { // not a branch! continue; } $cells = array(); $cells[] = ': '; $cells[] = format_text($answer->answer, $answer->answerformat, $options); $table->data[] = new html_table_row($cells); $cells = array(); $cells[] = ': '; $cells[] = $this->get_jump_name($answer->jumpto); $table->data[] = new html_table_row($cells); if ($i === 1){ $table->data[count($table->data)-1]->cells[0]->style = 'width:20%;'; } $i++; } return $table; } public function get_grayout() { return 1; } public function report_answers($answerpage, $answerdata, $useranswer, $pagestats, &$i, &$n) { $answers = $this->get_answers(); $formattextdefoptions = new stdClass; $formattextdefoptions->para = false; //I'll use it widely in this page $formattextdefoptions->context = $answerpage->context; foreach ($answers as $answer) { $data = "id\" " . "value=\"".s(strip_tags(format_text($answer->answer, FORMAT_MOODLE, $formattextdefoptions)))."\" " . "disabled=\"disabled\"> "; $data .= get_string('jumpsto', 'lesson', $this->get_jump_name($answer->jumpto)); $answerdata->answers[] = array($data, ""); $answerpage->answerdata = $answerdata; } return $answerpage; } public function update($properties, $context = null, $maxbytes = null) { if (empty($properties->display)) { $properties->display = '0'; } if (empty($properties->layout)) { $properties->layout = '0'; } return parent::update($properties); } public function add_page_link($previd) { global $PAGE, $CFG; $addurl = new moodle_url('/mod/lesson/editpage.php', array('id'=>$PAGE->cm->id, 'pageid'=>$previd, 'qtype'=>LESSON_PAGE_BRANCHTABLE)); return array('addurl'=>$addurl, 'type'=>LESSON_PAGE_BRANCHTABLE, 'name'=>get_string('addabranchtable', 'lesson')); } protected function get_displayinmenublock() { return true; } public function is_unseen($param) { global $USER, $DB; if (is_array($param)) { $seenpages = $param; $branchpages = $this->lesson->get_sub_pages_of($this->properties->id, array(LESSON_PAGE_BRANCHTABLE, LESSON_PAGE_ENDOFBRANCH)); foreach ($branchpages as $branchpage) { if (array_key_exists($branchpage->id, $seenpages)) { // check if any of the pages have been viewed return false; } } return true; } else { $nretakes = $param; if (!$DB->count_records("lesson_attempts", array("pageid"=>$this->properties->id, "userid"=>$USER->id, "retry"=>$nretakes))) { return true; } return false; } } } class lesson_add_page_form_branchtable extends lesson_add_page_form_base { public $qtype = LESSON_PAGE_BRANCHTABLE; public $qtypestring = 'branchtable'; protected $standard = false; public function custom_definition() { global $PAGE, $CFG; $mform = $this->_form; $lesson = $this->_customdata['lesson']; $firstpage = optional_param('firstpage', false, PARAM_BOOL); $jumptooptions = lesson_page_type_branchtable::get_jumptooptions($firstpage, $lesson); if ($this->_customdata['edit']) { $mform->setDefault('qtypeheading', get_string('editbranchtable', 'lesson')); } else { $mform->setDefault('qtypeheading', get_string('addabranchtable', 'lesson')); } $mform->addElement('hidden', 'firstpage'); $mform->setType('firstpage', PARAM_BOOL); $mform->setDefault('firstpage', $firstpage); $mform->addElement('hidden', 'qtype'); $mform->setType('qtype', PARAM_INT); $mform->addElement('text', 'title', get_string("pagetitle", "lesson"), ['size' => 70, 'maxlength' => 255]); $mform->addRule('title', null, 'required', null, 'client'); $mform->addRule('title', get_string('maximumchars', '', 255), 'maxlength', 255, 'client'); if (!empty($CFG->formatstringstriptags)) { $mform->setType('title', PARAM_TEXT); } else { $mform->setType('title', PARAM_CLEANHTML); } $this->editoroptions = array('noclean'=>true, 'maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$PAGE->course->maxbytes); $mform->addElement('editor', 'contents_editor', get_string("pagecontents", "lesson"), null, $this->editoroptions); $mform->setType('contents_editor', PARAM_RAW); $mform->addElement('checkbox', 'layout', null, get_string("arrangebuttonshorizontally", "lesson")); $mform->setDefault('layout', true); $mform->addElement('checkbox', 'display', null, get_string("displayinleftmenu", "lesson")); $mform->setDefault('display', true); for ($i = 0; $i < $lesson->maxanswers; $i++) { $mform->addElement('header', 'headeranswer'.$i, get_string('branch', 'lesson').' '.($i+1)); $this->add_answer($i, get_string("description", "lesson"), $i == 0); $mform->addElement('select', 'jumpto['.$i.']', get_string("jump", "lesson"), $jumptooptions); if ($i === 0) { $mform->setDefault('jumpto['.$i.']', 0); } else { $mform->setDefault('jumpto['.$i.']', LESSON_NEXTPAGE); } } } }