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256 lines
7.7 KiB
256 lines
7.7 KiB
<?php
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/**
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* md_link.php for Chamilo metadata/*.php
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* 2006/12/15
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* Copyright (C) 2006 rene.haentjens@UGent.be - see metadata/md_funcs.php
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* @package chamilo.metadata
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*/
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/**
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* Chamilo Metadata: class mdobject for Link-type objects
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* @package chamilo.metadata
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*/
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class mdobject {
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var $mdo_course;
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var $mdo_type;
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var $mdo_id;
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var $mdo_eid;
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var $mdo_dcmap_e;
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var $mdo_dcmap_v;
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var $mdo_url;
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var $mdo_title;
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var $mdo_description;
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var $mdo_category;
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var $mdo_category_title;
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function mdo_define_htt() { return new xhtdoc(<<<EOD
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<!-- {-INDEXABLETEXT-} -->
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Title: {-V metadata/lom/general/title/string-} txt-sep
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Keyword(s): {-R metadata/lom/general/keyword C KWTEXT-} txt-sep
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Category: {-V metadata/lom/general/coverage/string-} txt-sep
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{-V metadata/lom/general/description[1]/string-} txt-end
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link-type
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<!-- {-KWTEXT-} -->
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{-V string-}-kw
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<!-- {--} -->
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EOD
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);
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}
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function mdo_generate_default_xml_metadata()
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{
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global $iso639_2_code, $ieee_xml;
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$xhtDoc = new xhtdoc($ieee_xml); $_user = api_get_user_info();
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if ($xhtDoc->htt_error)
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give_up('IEEE XML (metadata/md_funcs): ' . $xhtDoc->htt_error);
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$xhtDoc->xht_get_lang = 'get_lang'; $xhtDoc->xht_xmldoc = new xmddoc('');
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if ($xhtDoc->xht_xmldoc->error) give_up($xhtDoc->xht_xmldoc->error);
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$xhtDoc->xht_param['siteUri'] = make_uri();
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$xhtDoc->xht_param['entry'] = $this->mdo_course['sysCode'] .
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'.Link.' . $this->mdo_id; // 2005-05-30: path->sysCode
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$xhtDoc->xht_param['location'] = $this->mdo_url . '';
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$xhtDoc->xht_param['mdlang'] = strtolower($iso639_2_code);
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$xhtDoc->xht_param['lang'] = strtolower($iso639_2_code);
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$xhtDoc->xht_param['title'] =
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$this->mdo_title ? $this->mdo_title : get_lang('MdTitle');
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if (($d = $this->mdo_description))
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{
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if ($keywords = $this->_find_keywords($d)) $d = array_pop($keywords);
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$xhtDoc->xht_param['description'] = $d;
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}
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else
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$xhtDoc->xht_param['description'] = get_lang('MdDescription');
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$xhtDoc->xht_param['coverage'] = $this->mdo_category_title ?
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$this->mdo_category_title : get_lang('MdCoverage');
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if (isset($_user))
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{
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$xhtDoc->xht_param['author'] = "BEGIN:VCARD\\nFN:" .
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api_get_person_name($_user['firstName'], $_user['lastName'], null, PERSON_NAME_EMAIL_ADDRESS) .
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"\\nEMAIL:".$_user['mail'] . "\\nEND:VCARD\\n";
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}
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$xhtDoc->xht_param['dateTime'] = date('Y-m-d');
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$xhtDoc->xht_param['format'] = ''; $xhtDoc->xht_param['size'] = '0';
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if (count($keywords))
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{
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$xd = new xmddoc(explode("\n",
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$mdt = $xhtDoc->xht_fill_template('XML')));
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if ($xd->error) return $mdt; // and worry later
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$this->_add_keywords($xd, $keywords);
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return $xd->xmd_xml();
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}
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return $xhtDoc->xht_fill_template('XML');
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}
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function mdo_override(&$xmlDoc) // by ref!
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{
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if ($this->mdo_url)
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{
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$xmlDoc->xmd_update('metadata/lom/technical/location', $this->mdo_url);
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$ge = $xmlDoc->xmd_select_single_element("metadata/lom/general");
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$xmlDoc->xmd_update('title[1]/string', $this->mdo_title, $ge);
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$xmlDoc->xmd_update('coverage[1]/string', $this->mdo_category_title, $ge);
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if (($d = $this->mdo_description))
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if ($keywords = $this->_find_keywords($d)) $d = array_pop($keywords);
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$xmlDoc->xmd_update('description[1]/string', $d, $ge);
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$xmlDoc->xmd_remove_nodes($xmlDoc->xmd_select_elements('keyword', $ge), $ge);
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if (count($keywords)) $this->_add_keywords($xmlDoc, $keywords);
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}
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return $xmlDoc->xmd_xml();
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}
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function mdo_storeback(&$xmlDoc) // by ref!
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{
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$course_id = api_get_course_int_id();
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if (!$this->mdo_url) return; // no record in link table, most probably
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if (!($v = $xmlDoc->xmd_value('metadata/lom/technical/location'))) return;
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if ($v != $this->mdo_url)
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{ $this->mdo_url = $v; $u .= ", url = '" . addslashes($v) . "'"; }
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$ge = $xmlDoc->xmd_select_single_element("metadata/lom/general");
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$v = $xmlDoc->xmd_value('title[1]/string', $ge);
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if ($v != $this->mdo_title)
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{ $this->mdo_title = $v; $u .= ", title = '" . addslashes($v) . "'"; }
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$vd = $xmlDoc->xmd_value('description[1]/string', $ge);
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$vk = $xmlDoc->xmd_value('keyword/string', $ge, array('in' => ', '));
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$v = $vk ? '<i kw="' . htmlspecialchars($vk) . '">' .
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ereg_replace('\[((/?(b|big|i|small|sub|sup|u))|br/)\]', '<\\1>',
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htmlspecialchars($vd)) . '</i>' : $vd;
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if ($v != $this->mdo_description)
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{
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$this->mdo_description = $v;
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$u .= ", description = '" . addslashes($v) . "'";
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}
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// do not store back a modified coverage as category...
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$link_table = Database::get_course_table(TABLE_LINK);
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if ($u) Database::query("UPDATE $link_table SET " . substr($u, 2) .
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" WHERE c_id = $course_id AND id='" . addslashes($this->mdo_id) . "'");
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}
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function mdo_add_breadcrump_nav()
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{
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global $interbreadcrumb;
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$regs = array(); // for use with ereg()
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$docurl = api_get_self(); // should be .../main/xxx/yyy.php
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if (ereg('^(.+[^/\.]+)/[^/\.]+/[^/\.]+.[^/\.]+$', $docurl, $regs))
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$docurl = $regs[1] . '/link/link.php';
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$interbreadcrumb[]= array ('url' => $docurl,
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"name"=> get_lang('MdCallingTool'));
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}
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function mdobject($_course, $id)
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{
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global $ieee_dcmap_e, $ieee_dcmap_v; // md_funcs
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$course_id = api_get_course_int_id();
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$this->mdo_course = $_course; $this->mdo_type = 'Link';
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$this->mdo_id = $id; $this->mdo_eid = $this->mdo_type . '.' . $id;
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$this->mdo_dcmap_e = $ieee_dcmap_e; $this->mdo_dcmap_v = $ieee_dcmap_v;
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$link_table = Database::get_course_table(TABLE_LINK);
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if (($linkinfo = @Database::fetch_array(Database::query(
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"SELECT url,title,description,category_id FROM $link_table WHERE c_id = $course_id AND id='" .intval($id) . "'"))))
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{
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$this->mdo_url = $linkinfo['url'];
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$this->mdo_title = $linkinfo['title'];
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$this->mdo_description = $linkinfo['description'];
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$this->mdo_category = ($lci = $linkinfo['category_id']);
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$linkcat_table = Database::get_course_table(TABLE_LINK_CATEGORY);
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if (($catinfo = @Database::fetch_array(Database::query(
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"SELECT category_title FROM $linkcat_table WHERE c_id = $course_id AND id='" .
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addslashes($lci) . "'"))))
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$this->mdo_category_title = $catinfo['category_title'];
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}
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}
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function _find_keywords($d)
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{
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$dd = new xmddoc($d); if ($dd->error) return NULL;
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$regs = array(); // for use with ereg()
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foreach ($dd->attributes[0] as $name => $value)
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if ($name == 'kw' && ereg('^<?([^>]+)>?$', $value, $regs))
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{
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$kwa = array_map('trim', explode(',', $regs[1]));
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if (ereg('^<' . ($tag = $dd->name[0]) . '[^>]*>(.*)</'.$tag.'>$',
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$d, $regs)) // e.g. <i kw="...">A & <b>B</b>!</i>
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{
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$htdc = array_flip(get_html_translation_table(HTML_ENTITIES));
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$d = strtr(ereg_replace( // first <b> -> [b] etc.
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'<((/?(b|big|i|small|sub|sup|u))|br/)>', '[\\1]',
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($regs[1])), $htdc); // then & -> & etc.
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$d = strtr(str_replace("\r\n", " ", $d), "\r\n", " ");
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}
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else $d = $dd->xmd_text();
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array_push($kwa, $d); return $kwa;
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}
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return NULL;
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}
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function _add_keywords(&$xmlDoc, $keywords) // by ref!
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{
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$ge = $xmlDoc->xmd_select_single_element("metadata/lom/general");
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$dl = array("language" =>
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$xmlDoc->xmd_value("description/string/@language", $ge));
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foreach ($keywords as $kw)
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$xmlDoc->xmd_add_text_element("string", $kw,
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$xmlDoc->xmd_add_element("keyword", $ge), $dl);
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}
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}
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?>
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