/mod/lesson/pagetypes/endofbranch.php
PHP | 201 lines | 138 code | 35 blank | 28 comment | 34 complexity | db166a5566ebf08a23830465eaa87edc MD5 | raw file
- <?php
- // This file is part of Moodle - http://moodle.org/
- //
- // Moodle is free software: you can redistribute it and/or modify
- // it under the terms of the GNU General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // Moodle is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- //
- // You should have received a copy of the GNU General Public License
- // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
- /**
- * End of branch table
- *
- * @package mod_lesson
- * @copyright 2009 Sam Hemelryk
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- **/
- defined('MOODLE_INTERNAL') || die();
- /** End of Branch page */
- define("LESSON_PAGE_ENDOFBRANCH", "21");
- class lesson_page_type_endofbranch extends lesson_page {
- protected $type = lesson_page::TYPE_STRUCTURE;
- protected $typeidstring = 'endofbranch';
- protected $typeid = LESSON_PAGE_ENDOFBRANCH;
- protected $string = null;
- protected $jumpto = null;
- public function display($renderer, $attempt) {
- return '';
- }
- 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;
- }
- public function get_idstring() {
- return $this->typeidstring;
- }
- public function callback_on_view($canmanage, $redirect = true) {
- return (int) $this->redirect_to_first_answer($canmanage, $redirect);
- }
- public function redirect_to_first_answer($canmanage, $redirect) {
- global $USER, $PAGE;
- $answers = $this->get_answers();
- $answer = array_shift($answers);
- $jumpto = $answer->jumpto;
- if ($jumpto == LESSON_RANDOMBRANCH) {
- $jumpto = lesson_unseen_branch_jump($this->lesson, $USER->id);
- } elseif ($jumpto == LESSON_CLUSTERJUMP) {
- if (!$canmanage) {
- $jumpto = $this->lesson->cluster_jump($this->properties->id);
- } else {
- if ($this->properties->nextpageid == 0) {
- $jumpto = LESSON_EOL;
- } else {
- $jumpto = $this->properties->nextpageid;
- }
- }
- } else if ($answer->jumpto == LESSON_NEXTPAGE) {
- if ($this->properties->nextpageid == 0) {
- $jumpto = LESSON_EOL;
- } else {
- $jumpto = $this->properties->nextpageid;
- }
- } else if ($jumpto == 0) {
- $jumpto = $this->properties->id;
- } else if ($jumpto == LESSON_PREVIOUSPAGE) {
- $jumpto = $this->properties->prevpageid;
- }
- if ($redirect) {
- redirect(new moodle_url('/mod/lesson/view.php', array('id' => $PAGE->cm->id, 'pageid' => $jumpto)));
- die;
- }
- return $jumpto;
- }
- public function get_grayout() {
- return 1;
- }
- public function add_page_link($previd) {
- global $PAGE, $CFG;
- if ($previd != 0) {
- $addurl = new moodle_url('/mod/lesson/editpage.php', array('id'=>$PAGE->cm->id, 'pageid'=>$previd, 'sesskey'=>sesskey(), 'qtype'=>LESSON_PAGE_ENDOFBRANCH));
- return array('addurl'=>$addurl, 'type'=>LESSON_PAGE_ENDOFBRANCH, 'name'=>get_string('addanendofbranch', 'lesson'));
- }
- return false;
- }
- public function valid_page_and_view(&$validpages, &$pageviews) {
- return $this->properties->nextpageid;
- }
- }
- class lesson_add_page_form_endofbranch extends lesson_add_page_form_base {
- public $qtype = LESSON_PAGE_ENDOFBRANCH;
- public $qtypestring = 'endofbranch';
- protected $standard = false;
- public function custom_definition() {
- global $PAGE;
- $mform = $this->_form;
- $lesson = $this->_customdata['lesson'];
- $jumptooptions = lesson_page_type_branchtable::get_jumptooptions(optional_param('firstpage', false, PARAM_BOOL), $lesson);
- $mform->addElement('hidden', 'firstpage');
- $mform->setType('firstpage', PARAM_BOOL);
- $mform->addElement('hidden', 'qtype');
- $mform->setType('qtype', PARAM_TEXT);
- $mform->addElement('text', 'title', get_string("pagetitle", "lesson"), array('size'=>70));
- $mform->setType('title', PARAM_TEXT);
- $this->editoroptions = array('noclean'=>true, 'maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$PAGE->course->maxbytes);
- $mform->addElement('editor', 'contents_editor', get_string("pagecontents", "lesson"), null, $this->editoroptions);
- $mform->setType('contents_editor', PARAM_RAW);
- $this->add_jumpto(0);
- }
- public function construction_override($pageid, lesson $lesson) {
- global $DB, $CFG, $PAGE;
- require_sesskey();
- // first get the preceeding page
- $timenow = time();
- // the new page is not the first page (end of branch always comes after an existing page)
- if (!$page = $DB->get_record("lesson_pages", array("id" => $pageid))) {
- print_error('cannotfindpagerecord', 'lesson');
- }
- // chain back up to find the (nearest branch table)
- $btpage = clone($page);
- $btpageid = $btpage->id;
- while (($btpage->qtype != LESSON_PAGE_BRANCHTABLE) && ($btpage->prevpageid > 0)) {
- $btpageid = $btpage->prevpageid;
- if (!$btpage = $DB->get_record("lesson_pages", array("id" => $btpageid))) {
- print_error('cannotfindpagerecord', 'lesson');
- }
- }
- if ($btpage->qtype == LESSON_PAGE_BRANCHTABLE) {
- $newpage = new stdClass;
- $newpage->lessonid = $lesson->id;
- $newpage->prevpageid = $pageid;
- $newpage->nextpageid = $page->nextpageid;
- $newpage->qtype = $this->qtype;
- $newpage->timecreated = $timenow;
- $newpage->title = get_string("endofbranch", "lesson");
- $newpage->contents = get_string("endofbranch", "lesson");
- $newpageid = $DB->insert_record("lesson_pages", $newpage);
- // update the linked list...
- $DB->set_field("lesson_pages", "nextpageid", $newpageid, array("id" => $pageid));
- if ($page->nextpageid) {
- // the new page is not the last page
- $DB->set_field("lesson_pages", "prevpageid", $newpageid, array("id" => $page->nextpageid));
- }
- // ..and the single "answer"
- $newanswer = new stdClass;
- $newanswer->lessonid = $lesson->id;
- $newanswer->pageid = $newpageid;
- $newanswer->timecreated = $timenow;
- $newanswer->jumpto = $btpageid;
- $newanswerid = $DB->insert_record("lesson_answers", $newanswer);
- $lesson->add_message(get_string('addedanendofbranch', 'lesson'), 'notifysuccess');
- } else {
- $lesson->add_message(get_string('nobranchtablefound', 'lesson'));
- }
- redirect($CFG->wwwroot."/mod/lesson/edit.php?id=".$PAGE->cm->id);
- }
- }