content.php

   1 <?php
   2 /****************************************************************/
   3 /* ATutor                                                                                                               */
   4 /****************************************************************/
   5 /* Copyright (c) 2002-2009                                                                              */
   6 /* Adaptive Technology Resource Centre / University of Toronto  */
   7 /* http://atutor.ca                                                                                             */
   8 /*                                                              */
   9 /* This program is free software. You can redistribute it and/or*/
  10 /* modify it under the terms of the GNU General Public License  */
  11 /* as published by the Free Software Foundation.                                */
  12 /****************************************************************/
  13 // $Id$
  14 define('AT_INCLUDE_PATH', 'include/');
  15 require(AT_INCLUDE_PATH.'vitals.inc.php');
  16
  17 $cid = $_GET['cid'] = intval($_GET['cid']);
  18
  19 if ($cid == 0) {
  20         header('Location: '.$_base_href.'index.php');
  21         exit;
  22 }
  23
  24 /* show the content page */
  25 $result = $contentManager->getContentPage($cid);
  26
  27 if (!($content_row = mysql_fetch_assoc($result))) {
  28         $_pages['content.php']['title_var'] = 'missing_content';
  29         $_pages['content.php']['parent']    = 'index.php';
  30         $_pages['content.php']['ignore']        = true;
  31
  32
  33         require(AT_INCLUDE_PATH.'header.inc.php');
  34
  35         $msg->addError('PAGE_NOT_FOUND');
  36         $msg->printAll();
  37
  38         require (AT_INCLUDE_PATH.'footer.inc.php');
  39         exit;
  40 } /* else: */
  41
  42 if (defined('AT_FORCE_GET_FILE') && AT_FORCE_GET_FILE) {
  43         $course_base_href = 'get.php/';
  44 } else {
  45         $course_base_href = 'content/' . $_SESSION['course_id'] . '/';
  46 }
  47
  48 /* the "heading navigation": */
  49 $path   = $contentManager->getContentPath($cid);
  50
  51 if ($content_row['content_path']) {
  52         $content_base_href = $content_row['content_path'].'/';
  53 }
  54
  55 $parent_headings = '';
  56 $num_in_path = count($path);
  57
  58 /* the page title: */
  59 $page_title = '';
  60 $page_title .= $content_row['title'];
  61
  62 for ($i=0; $i<$num_in_path; $i++) {
  63         $content_info = $path[$i];
  64         if ($_SESSION['prefs']['PREF_NUMBERING']) {
  65                 if ($contentManager->_menu_info[$content_info['content_id']]['content_parent_id'] == 0) {
  66                         $top_num = $contentManager->_menu_info[$content_info['content_id']]['ordering'];
  67                         $parent_headings .= $top_num;
  68                 } else {
  69                         $top_num = $top_num.'.'.$contentManager->_menu_info[$content_info['content_id']]['ordering'];
  70                         $parent_headings .= $top_num;
  71                 }
  72                 if ($_SESSION['prefs']['PREF_NUMBERING']) {
  73                         $path[$i]['content_number'] = $top_num . ' ';
  74                 }
  75                 $parent_headings .= ' ';
  76         }
  77 }
  78
  79 if ($_SESSION['prefs']['PREF_NUMBERING']) {
  80         if ($top_num != '') {
  81                 $top_num = $top_num.'.'.$content_row['ordering'];
  82                 $page_title .= $top_num.' ';
  83         } else {
  84                 $top_num = $content_row['ordering'];
  85                 $page_title .= $top_num.' ';
  86         }
  87 }
  88
  89 $parent = 0;
  90
  91 foreach ($path as $i=>$page) {
  92         // When login is a student, remove content folder from breadcrumb path as content folders are
  93         // just toggles for students. Keep content folder in breadcrumb path for instructors as they
  94         // can edit content folder title.
  95         if (!authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN) &&
  96             $contentManager->_menu_info[$page['content_id']]['content_type'] == CONTENT_TYPE_FOLDER) {
  97                 unset($path[$i]);
  98                 continue;
  99         }
 100
 101         if ($contentManager->_menu_info[$page['content_id']]['content_type'] == CONTENT_TYPE_FOLDER)
 102                 $content_url = 'editor/edit_content_folder.php?cid='.$page['content_id'];
 103         else
 104                 $content_url = 'content.php?cid='.$page['content_id'];
 105
 106         if (!$parent) {
 107                 $_pages[$content_url]['title']    = $page['content_number'] . $page['title'];
 108                 $_pages[$content_url]['parent']   = 'index.php';
 109         } else {
 110                 $_pages[$content_url]['title']    = $page['content_number'] . $page['title'];
 111                 $_pages[$content_url]['parent']   = 'editor/edit_content_folder.php?cid='.$parent;
 112         }
 113
 114         $_pages[$content_url]['ignore'] = true;
 115         $parent = $page['content_id'];
 116 }
 117 $last_page = array_pop($_pages);
 118 $_pages['content.php'] = $last_page;
 119
 120 reset($path);
 121 $first_page = current($path);
 122
 123 /* the content test extension page */
 124 $content_test_ids = array();    //the html
 125 $content_test_rs = $contentManager->getContentTestsAssoc($cid);
 126 while ($content_test_row = mysql_fetch_assoc($content_test_rs)){
 127         $content_test_ids[] = $content_test_row;
 128 }
 129
 130 /*TODO***************BOLOGNA***************REMOVE ME**********/
 131 /* the content forums extension page*/
 132 $content_forum_ids = array();   //the html
 133 $content_forum_rs = $contentManager->getContentForumsAssoc($cid);
 134 while ($content_forum_row = mysql_fetch_assoc($content_forum_rs)){
 135         $content_forum_ids[] = $content_forum_row;
 136 }
 137
 138 // use any styles that were part of the imported document
 139 // $_custom_css = $_base_href.'headstuff.php?cid='.$cid.SEP.'path='.urlEncode($_base_href.$course_base_href.$content_base_href);
 140
 141 if ($content_row['use_customized_head'] && strlen($content_row['head']) > 0)
 142 {
 143         $_custom_head .= $content_row['head'];
 144 }
 145
 146 global $_custom_head;
 147 $_custom_head .= '
 148         <script language="javascript" type="text/javascript">
 149         //<!--
 150         jQuery(function() {
 151         jQuery(\'a.tooltip\').tooltip( { showBody: ": ", showURL: false } );
 152         } );
 153         //-->
 154         </script>
 155 ';
 156
 157 save_last_cid($cid);
 158
 159 if (isset($top_num) && $top_num != (int) $top_num) {
 160         $top_num = substr($top_num, 0, strpos($top_num, '.'));
 161 }
 162
 163 $shortcuts = array();
 164 if ((   ($content_row['r_date'] <= $content_row['n_date'])
 165                 && ((!$content_row['content_parent_id'] && ($_SESSION['packaging'] == 'top'))
 166                         || ($_SESSION['packaging'] == 'all'))
 167         ) || authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN)) {
 168
 169         $shortcuts[] = array('title' => _AT('export_content'), 'url' => $_base_href . 'tools/ims/ims_export.php?cid='.$cid);
 170 }
 171
 172 if (authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN)) {
 173         $shortcuts[] = array('title' => _AT('edit_this_page'),   'url' => $_base_href . 'editor/edit_content.php?cid='.$cid);
 174         $shortcuts[] = array('title' => _AT('add_top_folder'),   'url' => $_base_href . 'editor/edit_content_folder.php');
 175
 176         if ($contentManager->_menu_info[$cid]['content_parent_id']) {
 177                 $shortcuts[] = array('title' => _AT('add_sibling_folder'), 'url' => $_base_href .
 178                         'editor/edit_content_folder.php?pid='.$contentManager->_menu_info[$cid]['content_parent_id']);
 179         }
 180         $shortcuts[] = array('title' => _AT('add_top_page'),     'url' => $_base_href . 'editor/edit_content.php');
 181         if ($contentManager->_menu_info[$cid]['content_parent_id']) {
 182                 $shortcuts[] = array('title' => _AT('add_sibling_page'), 'url' => $_base_href .
 183                         'editor/edit_content.php?pid='.$contentManager->_menu_info[$cid]['content_parent_id']);
 184         }
 185         $shortcuts[] = array('title' => _AT('delete_this_page'), 'url' => $_base_href . 'editor/delete_content.php?cid='.$cid);
 186 }
 187 $savant->assign('shortcuts', $shortcuts);
 188
 189 /* if i'm an admin then let me see content, otherwise only if released */
 190 $released_status = $contentManager->isReleased($cid);
 191
 192 if ($released_status === TRUE || authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN)) {
 193         //if it has test and forum associated with it, still display it even if the content is empty
 194         if ($content_row['text'] == '' && (empty($content_test_ids) && empty($content_forum_ids))){
 195                 $msg->addInfo('NO_PAGE_CONTENT');
 196                 $savant->assign('body', '');
 197         } else {
 198                 if ($released_status !== TRUE) {
 199                         /* show the instructor that this content hasn't been released yet */
 200                         $infos = array('NOT_RELEASED', AT_date(_AT('announcement_date_format'), $released_status, AT_DATE_UNIX_TIMESTAMP));
 201                         $msg->addInfo($infos);
 202                         unset($infos);
 203                 }
 204
 205                 $pre_test_id = $contentManager->getPretest($cid);
 206
 207                 if (intval($pre_test_id) > 0)
 208                 {
 209                         if (authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN)) {
 210                                 $msg->addInfo('PRETEST');
 211                         }
 212                         else {
 213                                 header('Location: '.url_rewrite('tools/test_intro.php?tid='.$pre_test_id.SEP.'cid='.$cid, AT_PRETTY_URL_IS_HEADER));
 214                         }
 215                 }
 216
 217                 // if one of the prerequisite test(s) has expired, student cannot view the content
 218                 if (intval($pre_test_id) != -1 || authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN))
 219                 {
 220                         //Silvia: to provide appropriated content on the basis of users' preferences
 221                         $content = provide_alternatives($cid, $content_row['text']);
 222
 223                         $content = format_content($content, $content_row['formatting'], $glossary);
 224
 225                         $content_array = get_content_table($content);
 226
 227                         $savant->assign('content_table', $content_array[0]);
 228                         $savant->assign('body', $content_array[1]);
 229
 230                         //assign test pages if there are tests associated with this content page
 231                         if (!empty($content_test_ids)){
 232                                 $savant->assign('test_message', $content_row['test_message']);
 233                                 $savant->assign('test_ids', $content_test_ids);
 234                         } else {
 235                                 $savant->assign('test_message', '');
 236                                 $savant->assign('test_ids', array());
 237                         }
 238
 239                         /*TODO***************BOLOGNA***************REMOVE ME**********/
 240                         //assign forum pages if there are forums associated with this content page
 241                         if (!empty($content_forum_ids)){
 242                                 $savant->assign('forum_message','');
 243                                 $savant->assign('forum_ids', $content_forum_ids);
 244                         } else {
 245                                 $savant->assign('forum_message', '');
 246                                 $savant->assign('forum_ids', array());
 247                         }
 248                 }
 249         }
 250 } else {
 251         $infos = array('NOT_RELEASED', AT_date(_AT('announcement_date_format'), $released_status, AT_DATE_UNIX_TIMESTAMP));
 252         $msg->addInfo($infos);
 253         unset($infos);
 254 }
 255
 256 $savant->assign('content_info', _AT('page_info', AT_date(_AT('inbox_date_format'), $content_row['last_modified'], AT_DATE_MYSQL_DATETIME), $content_row['revision'], AT_date(_AT('inbox_date_format'), $content_row['release_date'], AT_DATE_MYSQL_DATETIME)));
 257
 258 require(AT_INCLUDE_PATH.'header.inc.php');
 259
 260 $savant->display('content.tmpl.php');
 261
 262 //save last visit page.
 263 $_SESSION['last_visited_page'] = $server_protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
 264
 265 require (AT_INCLUDE_PATH.'footer.inc.php');
 266 ?>