links/index.php

   1 <?php
   2 /****************************************************************************/
   3 /* ATutor                                                                                                                                       */
   4 /****************************************************************************/
   5 /* Copyright (c) 2002-2006 by Greg Gay, Joel Kronenberg & Heidi Hazelton        */
   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
  15 define('AT_INCLUDE_PATH', '../include/');
  16
  17 require (AT_INCLUDE_PATH.'vitals.inc.php');
  18 require (AT_INCLUDE_PATH.'lib/links.inc.php');
  19
  20 if (!manage_links()) {
  21         $_pages['links/index.php']['children']  = array('links/add.php');
  22 }
  23
  24 if (isset($_GET['view'])) {
  25         $_GET['view'] = intval($_GET['view']);
  26         //add to the num hits
  27         $sql = "SELECT Url, hits FROM ".TABLE_PREFIX."links WHERE link_id=$_GET[view]";
  28         $results = mysql_query($sql,$db);
  29
  30         if ($row = mysql_fetch_assoc($results)) {
  31                 if (!authenticate(AT_PRIV_LINKS, AT_PRIV_RETURN)) {
  32
  33                         $row['hits']++;
  34                         $sql = "UPDATE ".TABLE_PREFIX."links SET hits=$row[hits] WHERE link_id=$_GET[view]";
  35                         mysql_query($sql,$db);
  36                 }
  37
  38                 //redirect
  39                 header('Location: ' . $row['Url']);
  40                 exit;
  41         }
  42 }
  43
  44 require (AT_INCLUDE_PATH.'header.inc.php');
  45
  46 if ($_GET['reset_filter']) {
  47         unset($_GET);
  48 }
  49
  50 $_GET['cat_parent_id'] = intval($_GET['cat_parent_id']);
  51
  52 //get appropriate categories
  53 $categories = get_link_categories();
  54
  55 //ascending decscending columns...
  56 $page_string = '';
  57 $orders = array('asc' => 'desc', 'desc' => 'asc');
  58 $cols   = array('LinkName' => 1, 'name' => 1, 'description' => 1);
  59
  60 if (isset($_GET['asc'])) {
  61         $order = 'asc';
  62         $col   = isset($cols[$_GET['asc']]) ? $_GET['asc'] : 'LinkName';
  63 } else if (isset($_GET['desc'])) {
  64         $order = 'desc';
  65         $col   = isset($cols[$_GET['desc']]) ? $_GET['desc'] : 'LinkName';
  66 } else {
  67         // no order set
  68         $order = 'asc';
  69         $col   = 'LinkName';
  70 }
  71
  72 //search
  73 if ($_GET['search']) {
  74         $_GET['search'] = trim($_GET['search']);
  75         $page_string .= SEP.'search='.urlencode($_GET['search']);
  76         $search = $addslashes($_GET['search']);
  77         $search = str_replace(array('%','_'), array('\%', '\_'), $search);
  78         $search = '%'.$search.'%';
  79         $search = "((LinkName LIKE '$search') OR (description LIKE '$search'))";
  80 } else {
  81         $search = '1';
  82 }
  83
  84 //view links of a child category
  85 if ($_GET['cat_parent_id']) {
  86     $children = get_child_categories ($_GET['cat_parent_id'], $categories);
  87     $cat_sql = "C.cat_id IN ($children $_GET[cat_parent_id])";
  88         $parent_id = intval($_GET['cat_parent_id']);
  89 } else {
  90     $cat_sql = '1';
  91     $parent_id = 0;
  92 }
  93
  94 //get links
  95 $tmp_groups = implode(',', $_SESSION['groups']);
  96
  97 if (!empty($tmp_groups)) {
  98         $sql = "SELECT * FROM ".TABLE_PREFIX."links L INNER JOIN ".TABLE_PREFIX."links_categories C USING (cat_id) WHERE ((owner_id=$_SESSION[course_id] AND owner_type=".LINK_CAT_COURSE.") OR (owner_id IN ($tmp_groups) AND owner_type=".LINK_CAT_GROUP.")) AND L.Approved=1 AND $search AND $cat_sql ORDER BY $col $order";
  99 } else {
 100         $sql = "SELECT * FROM ".TABLE_PREFIX."links L INNER JOIN ".TABLE_PREFIX."links_categories C USING (cat_id) WHERE (owner_id=$_SESSION[course_id] AND owner_type=".LINK_CAT_COURSE.") AND L.Approved=1 AND $search AND $cat_sql ORDER BY $col $order";
 101 }
 102 $result = mysql_query($sql, $db);
 103 $num_results = mysql_num_rows($result);
 104
 105 ?>
 106 <?php if ($num_results > 0 || isset($_GET['filter'])): ?>
 107 <form method="get" action="<?php echo $_SERVER['PHP_SELF']; ?>">
 108
 109 <div class="input-form">
 110         <div class="row">
 111                         <h3><?php echo _AT('results_found', $num_results); ?></h3>
 112                 </div>
 113
 114         <div class="row">
 115                         <label for="category_parent"><?php echo _AT('select_cat'); ?></label>
 116                 <br />
 117                         <?php if (!empty($categories)): ?>
 118                                 <select name="cat_parent_id" id="category_parent"><?php
 119                                                 if ($parent_id) {
 120                                                         $current_cat_id = $parent_id;
 121                                                         $exclude = false; /* don't exclude the children */
 122                                                 } else {
 123                                                         $current_cat_id = $cat_id;
 124                                                         $exclude = true; /* exclude the children */
 125                                                 }
 126
 127                                                 echo '<option value="0">&nbsp;&nbsp;&nbsp; '._AT('cats_all').' &nbsp;&nbsp;&nbsp;</option>';
 128                                                 select_link_categories($categories, 0, $current_cat_id, FALSE);
 129                                         ?>
 130                                 </select>
 131                         <?php endif; ?>
 132                 </div>
 133
 134                 <div class="row">
 135                         <label for="search"><?php echo _AT('search'); ?> (<?php echo _AT('title').', '._AT('description'); ?>)</label><br />
 136                         <input type="text" name="search" id="search" size="20" value="<?php echo htmlspecialchars($_GET['search']); ?>" />
 137                 </div>
 138
 139
 140                 <div class="row buttons">
 141                         <input type="submit" name="filter" value="<?php echo _AT('filter'); ?>" />
 142                         <input type="submit" name="reset_filter" value="<?php echo _AT('reset_filter'); ?>" />
 143                 </div>
 144 </div>
 145 </form>
 146 <?php endif; ?>
 147
 148 <table class="data static" summary="" rules="cols">
 149 <colgroup>
 150         <?php if ($col == 'LinkName'): ?>
 151                 <col class="sort" />
 152                 <col span="2" />
 153         <?php elseif($col == 'name'): ?>
 154                 <col />
 155                 <col class="sort" />
 156                 <col />
 157         <?php elseif($col == 'description'): ?>
 158                 <col span="2" />
 159                 <col class="sort" />
 160         <?php endif; ?>
 161 </colgroup>
 162 <thead>
 163 <tr>
 164         <th scope="col"><a href="links/index.php?<?php echo $orders[$order]; ?>=LinkName<?php echo $page_string; ?>"><?php echo _AT('title');          ?></a></th>
 165         <th scope="col"><a href="links/index.php?<?php echo $orders[$order]; ?>=name<?php echo $page_string; ?>"><?php echo _AT('category');           ?></a></th>
 166         <th scope="col"><a href="links/index.php?<?php echo $orders[$order]; ?>=description<?php echo $page_string; ?>"><?php echo _AT('description'); ?></a></th>
 167 </tr>
 168 </thead>
 169 <tbody>
 170         <?php if ($row = mysql_fetch_assoc($result)) : ?>
 171         <?php
 172         do {
 173                 ?>
 174                 <tr onmousedown="document.form['m<?php echo $row['link_id']; ?>'].checked = true;">
 175                         <td><a href="links/index.php?view=<?php echo $row['link_id']; ?>" target="_new" title="<?php echo AT_print($row['LinkName'], 'links.LinkName'); ?>"><?php echo AT_print($row['LinkName'], 'links.LinkName'); ?></a></td>
 176                         <td><?php
 177                                 if (empty($row['name'])) {
 178                                         $row['name'] = get_group_name($row['owner_id']);
 179                                 }
 180                                 echo AT_print($row['name'], 'links.name');
 181                         ?></td>
 182                         <td><?php echo AT_print($row['Description'], 'links.Description'); ?></td>
 183                 </tr>
 184         <?php
 185                 } while ($row = mysql_fetch_assoc($result)); ?>
 186         <?php else: ?>
 187                 <tr>
 188                         <td colspan="3"><?php echo _AT('none_found'); ?></td>
 189                 </tr>
 190         <?php endif; ?>
 191 </tbody>
 192 </table>
 193
 194 <?php require (AT_INCLUDE_PATH.'footer.inc.php'); ?>