mods/merlot/merlot_rest.php

   1 <?php
   2 /****************************************************************/
   3 /* ATutor                                                                                                               */
   4 /****************************************************************/
   5 /* Copyright (c) 2002-2006 by Greg Gay & Joel Kronenberg        */
   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: merlot_rest.php 6614 2006-09-27 19:32:29Z greg $
  14
  15 require("classes/MerlotResultParser.class.php");
  16
  17 $keywords = trim($_REQUEST['keywords']);
  18 $title = trim($_REQUEST['title']);
  19 $description = trim($_REQUEST['description']);
  20 $author = trim($_REQUEST['author']);
  21 $results_per_page = intval(trim($_REQUEST['results_per_page']));
  22
  23 if($keywords <> "" || $title <> "" || $description <> "" || $author <> "" || $_REQUEST["creativeCommons"] == "true")
  24 {
  25         $page = intval($_REQUEST['p']);
  26         if (!$page) {
  27                 $page = 1;
  28         }
  29
  30         if ($results_per_page > $default_results_per_page || $results_per_page == 0)
  31                 $results_per_page = $default_results_per_page;
  32
  33         $page_str = "results_per_page=".$results_per_page;
  34         $url_search = "&size=".$results_per_page."&firstRecNumber=".$results_per_page*($page - 1);
  35
  36         if ($keywords <> "")
  37         {
  38                 $page_str .= SEP."keywords=".urlencode($keywords);
  39                 $url_search .= "&keywords=".urlencode($keywords);
  40         }
  41         if ($title <> "")
  42         {
  43                 $page_str .= SEP."title=".urlencode($title);
  44                 $url_search .= "&title=".urlencode($title);
  45         }
  46         if ($description <> "")
  47         {
  48                 $page_str .= SEP. "description=".urlencode($description);
  49                 $url_search .= "&description=".urlencode($description);
  50         }
  51         if ($author <> "")
  52         {
  53                 $page_str .= SEP. "author=".urlencode($author);
  54                 $url_search .= "&author=".urlencode($author);
  55         }
  56
  57         if (isset($_REQUEST["search_type"]))
  58                 $page_str .= SEP."search_type=".$_REQUEST["search_type"];
  59
  60         if ($_REQUEST["search_type"] == 0) $url_search .= "&allKeyWords=true";
  61         if ($_REQUEST["search_type"] == 1) $url_search .= "&anyKeyWords=true";
  62         if ($_REQUEST["search_type"] == 2) $url_search .= "&exactPhraseKeyWords=true";
  63         if ($_REQUEST["creativeCommons"] == "true")
  64         {
  65                 $page_str .= SEP. "creativeCommons=true";
  66                 $url_search .= "&creativeCommons=true";
  67         }
  68
  69         $url = $_config['merlot_location']."?licenseKey=".$_config['merlot_key'].$url_search;
  70
  71         $xml_results = file_get_contents($url);
  72
  73         if (!$xml_results)
  74         {
  75                 $infos = array('CANNOT_CONNECT_SERVER', $_config['merlot_location']);
  76                 $msg->addInfo($infos);
  77         }
  78         else
  79         {
  80                 $MerlotResultParser =& new MerlotResultParser();
  81                 $MerlotResultParser->parse($xml_results);
  82                 $result_list = $MerlotResultParser->getParsedArray();
  83
  84                 if ($result_list['status'] == 'failed')  // failed, display error
  85                         echo "<span style='color:red'>"._AT('error').": ".$result_list['error']."</span>";
  86                 else  // success, display results
  87                 {
  88                         if (is_array($result_list))
  89                         {
  90                                 $num_results = $result_list["summary"]["totalCount"];
  91                                 $num_pages = max(ceil($num_results / $results_per_page), 1);
  92
  93                                 echo '  <div id="search_results">';
  94                                 echo "          <h2>". _AT('results')." <small>(".$result_list["summary"]["resultCount"]." out of ".$num_results.")</small></h2>";
  95
  96                                 print_paginator($page, $num_results, htmlspecialchars($page_str), $results_per_page);
  97
  98                                 foreach ($result_list as $key=>$result)
  99                                 {
 100                                         if (is_int($key))
 101                                         {
 102 ?>
 103
 104                 <dl class="browse-result">
 105
 106                         <dt></dt>
 107                         <dd><h3><a href="<?php echo $result['detailURL']; ?>"><?php echo htmlspecialchars($result['title']); ?></a></h3></dd>
 108
 109                         <dt><?php echo _AT("author"); ?></dt>
 110                         <dd><?php if ($result['authorName']=='') echo _AT('unknown'); else echo htmlspecialchars($result['authorName']); ?></dd>
 111
 112                         <dt><?php echo _AT("merlot_creation_date"); ?></dt>
 113                         <dd><?php echo date('M j, Y', round($result['creationDate']/1000)); ?></dd>
 114
 115                         <dt><?php echo _AT("description"); ?></dt>
 116                         <dd><?php if ($result['description']=='') echo _AT('na'); else if (strlen($result['description']) > 120) echo substr(htmlspecialchars($result['description']), 0, 120). "..."; else echo htmlspecialchars($result['description']); ?></dd>
 117
 118                         <dt><?php echo _AT("merlot_creative_commons"); ?></dt>
 119                         <dd><?php if ($result['creativeCommons'] == "true") echo _AT('yes'); else echo _AT('no'); ?></dd>
 120                 </dl>
 121                 <br />
 122 <?php
 123                                         }
 124                                 }
 125                                 echo '</div>';
 126                         }
 127                 }
 128         }
 129 }
 130 ?>