Differences Between: [Versions 400 and 401] [Versions 400 and 402] [Versions 400 and 403]
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 * End of branch table 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 defined('MOODLE_INTERNAL') || die(); 27 28 /** End of Branch page */ 29 define("LESSON_PAGE_ENDOFBRANCH", "21"); 30 31 class lesson_page_type_endofbranch extends lesson_page { 32 33 protected $type = lesson_page::TYPE_STRUCTURE; 34 protected $typeidstring = 'endofbranch'; 35 protected $typeid = LESSON_PAGE_ENDOFBRANCH; 36 protected $string = null; 37 protected $jumpto = null; 38 39 public function display($renderer, $attempt) { 40 return ''; 41 } 42 public function get_typeid() { 43 return $this->typeid; 44 } 45 public function get_typestring() { 46 if ($this->string===null) { 47 $this->string = get_string($this->typeidstring, 'lesson'); 48 } 49 return $this->string; 50 } 51 public function get_idstring() { 52 return $this->typeidstring; 53 } 54 public function callback_on_view($canmanage, $redirect = true) { 55 return (int) $this->redirect_to_first_answer($canmanage, $redirect); 56 } 57 58 public function redirect_to_first_answer($canmanage, $redirect) { 59 global $USER, $PAGE; 60 $answers = $this->get_answers(); 61 $answer = array_shift($answers); 62 $jumpto = $answer->jumpto; 63 if ($jumpto == LESSON_RANDOMBRANCH) { 64 65 $jumpto = lesson_unseen_branch_jump($this->lesson, $USER->id); 66 67 } elseif ($jumpto == LESSON_CLUSTERJUMP) { 68 69 if (!$canmanage) { 70 $jumpto = $this->lesson->cluster_jump($this->properties->id); 71 } else { 72 if ($this->properties->nextpageid == 0) { 73 $jumpto = LESSON_EOL; 74 } else { 75 $jumpto = $this->properties->nextpageid; 76 } 77 } 78 79 } else if ($answer->jumpto == LESSON_NEXTPAGE) { 80 81 if ($this->properties->nextpageid == 0) { 82 $jumpto = LESSON_EOL; 83 } else { 84 $jumpto = $this->properties->nextpageid; 85 } 86 87 } else if ($jumpto == 0) { 88 89 $jumpto = $this->properties->id; 90 91 } else if ($jumpto == LESSON_PREVIOUSPAGE) { 92 93 $jumpto = $this->properties->prevpageid; 94 95 } 96 97 if ($redirect) { 98 redirect(new moodle_url('/mod/lesson/view.php', array('id' => $PAGE->cm->id, 'pageid' => $jumpto))); 99 die; 100 } 101 return $jumpto; 102 } 103 public function get_grayout() { 104 return 1; 105 } 106 107 public function add_page_link($previd) { 108 global $PAGE, $CFG; 109 if ($previd != 0) { 110 $addurl = new moodle_url('/mod/lesson/editpage.php', array('id'=>$PAGE->cm->id, 'pageid'=>$previd, 'sesskey'=>sesskey(), 'qtype'=>LESSON_PAGE_ENDOFBRANCH)); 111 return array('addurl'=>$addurl, 'type'=>LESSON_PAGE_ENDOFBRANCH, 'name'=>get_string('addanendofbranch', 'lesson')); 112 } 113 return false; 114 } 115 public function valid_page_and_view(&$validpages, &$pageviews) { 116 return $this->properties->nextpageid; 117 } 118 } 119 120 class lesson_add_page_form_endofbranch extends lesson_add_page_form_base { 121 122 public $qtype = LESSON_PAGE_ENDOFBRANCH; 123 public $qtypestring = 'endofbranch'; 124 protected $standard = false; 125 126 public function custom_definition() { 127 global $PAGE, $CFG; 128 129 $mform = $this->_form; 130 $lesson = $this->_customdata['lesson']; 131 $jumptooptions = lesson_page_type_branchtable::get_jumptooptions(optional_param('firstpage', false, PARAM_BOOL), $lesson); 132 133 $mform->addElement('hidden', 'firstpage'); 134 $mform->setType('firstpage', PARAM_BOOL); 135 136 $mform->addElement('hidden', 'qtype'); 137 $mform->setType('qtype', PARAM_TEXT); 138 139 $mform->addElement('text', 'title', get_string("pagetitle", "lesson"), array('size'=>70)); 140 if (!empty($CFG->formatstringstriptags)) { 141 $mform->setType('title', PARAM_TEXT); 142 } else { 143 $mform->setType('title', PARAM_CLEANHTML); 144 } 145 146 $this->editoroptions = array('noclean'=>true, 'maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$PAGE->course->maxbytes); 147 $mform->addElement('editor', 'contents_editor', get_string("pagecontents", "lesson"), null, $this->editoroptions); 148 $mform->setType('contents_editor', PARAM_RAW); 149 150 $this->add_jumpto(0); 151 } 152 153 public function construction_override($pageid, lesson $lesson) { 154 global $DB, $CFG, $PAGE; 155 require_sesskey(); 156 157 // first get the preceeding page 158 159 $timenow = time(); 160 161 // the new page is not the first page (end of branch always comes after an existing page) 162 if (!$page = $DB->get_record("lesson_pages", array("id" => $pageid))) { 163 print_error('cannotfindpagerecord', 'lesson'); 164 } 165 // chain back up to find the (nearest branch table) 166 $btpage = clone($page); 167 $btpageid = $btpage->id; 168 while (($btpage->qtype != LESSON_PAGE_BRANCHTABLE) && ($btpage->prevpageid > 0)) { 169 $btpageid = $btpage->prevpageid; 170 if (!$btpage = $DB->get_record("lesson_pages", array("id" => $btpageid))) { 171 print_error('cannotfindpagerecord', 'lesson'); 172 } 173 } 174 175 if ($btpage->qtype == LESSON_PAGE_BRANCHTABLE) { 176 $newpage = new stdClass; 177 $newpage->lessonid = $lesson->id; 178 $newpage->prevpageid = $pageid; 179 $newpage->nextpageid = $page->nextpageid; 180 $newpage->qtype = $this->qtype; 181 $newpage->timecreated = $timenow; 182 $newpage->title = get_string("endofbranch", "lesson"); 183 $newpage->contents = get_string("endofbranch", "lesson"); 184 $newpageid = $DB->insert_record("lesson_pages", $newpage); 185 // update the linked list... 186 $DB->set_field("lesson_pages", "nextpageid", $newpageid, array("id" => $pageid)); 187 if ($page->nextpageid) { 188 // the new page is not the last page 189 $DB->set_field("lesson_pages", "prevpageid", $newpageid, array("id" => $page->nextpageid)); 190 } 191 // ..and the single "answer" 192 $newanswer = new stdClass; 193 $newanswer->lessonid = $lesson->id; 194 $newanswer->pageid = $newpageid; 195 $newanswer->timecreated = $timenow; 196 $newanswer->jumpto = $btpageid; 197 $newanswerid = $DB->insert_record("lesson_answers", $newanswer); 198 $lesson->add_message(get_string('addedanendofbranch', 'lesson'), 'notifysuccess'); 199 } else { 200 $lesson->add_message(get_string('nobranchtablefound', 'lesson')); 201 } 202 203 redirect($CFG->wwwroot."/mod/lesson/edit.php?id=".$PAGE->cm->id); 204 } 205 }
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