Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/link/link.php

576 lines
20 KiB

<?php // $Id: link.php 22251 2009-07-20 16:56:54Z iflorespaz $
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004-2008 Dokeos SPRL
Copyright (c) 2003 Ghent University (UGent)
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact: Dokeos, rue Notre Dame, 152, B-1140 Evere, Belgium, info@dokeos.com
==============================================================================
*/
/**
==============================================================================
* Main script for the links tool.
*
* Features:
* - Organize links into categories;
* - favorites/bookmarks-like interface;
* - move links up/down within a category;
* - move categories up/down;
* - expand/collapse all categories (except the main "non"-category);
* - add link to 'root' category => category-less link is always visible.
*
* @author Patrick Cool, main author, completely rewritten
* @author René Haentjens, added CSV file import (October 2004)
* @package dokeos.link
* @todo improve organisation, tables should come from database library
==============================================================================
*/
/*
==============================================================================
INIT SECTION
==============================================================================
*/
// name of the language file that needs to be included
$language_file = array('link','admin');
// including libraries
require_once "../inc/global.inc.php";
require_once "linkfunctions.php";
$this_section=SECTION_COURSES;
api_protect_course_script();
$htmlHeadXtra[] = '<script src="'.api_get_path(WEB_LIBRARY_PATH).'javascript/jquery.js" type="text/javascript" language="javascript"></script>'; //jQuery
$htmlHeadXtra[] = '<script type="text/javascript">
$(document).ready( function() {
for (i=0;i<$(".actions").length;i++) {
if ($(".actions:eq("+i+")").html()=="<table border=\"0\"></table>" || $(".actions:eq("+i+")").html()=="" || $(".actions:eq("+i+")").html()==null) {
$(".actions:eq("+i+")").hide();
}
}
$("#div_target").attr("style","display:none;")//hide
$("#id_check_target").click(function () {
if($(this).attr("checked")==true) {
$("#div_target").attr("style","display:block;")//show
} else {
$("#div_target").attr("style","display:none;")//hide
}
});
$(window).load(function () {
if($("#id_check_target").attr("checked")==true) {
$("#div_target").attr("style","display:block;")//show
} else {
$("#div_target").attr("style","display:none;")//hide
}
});
} );
</script>';
// div_target
// @todo change the $_REQUEST into $_POST or $_GET
// @todo remove this code
$link_submitted = (isset($_POST['submitLink'])?true:false);
$category_submitted = (isset($_POST['submitCategory'])?true:false);
$urlview = (!empty($_GET['urlview'])?$_GET['urlview']:'');
$submitImport = (!empty($_POST['submitImport'])?$_POST['submitImport']:'');
$down = (!empty($_GET['down'])?$_GET['down']:'');
$up = (!empty($_GET['up'])?$_GET['up']:'');
$catmove = (!empty($_GET['catmove'])?$_GET['catmove']:'');
$editlink = (!empty($_REQUEST['editlink'])?$_REQUEST['editlink']:'');
$id = (!empty($_REQUEST['id'])?$_REQUEST['id']:'');
$urllink = (!empty($_REQUEST['urllink'])?$_REQUEST['urllink']:'');
$title = (!empty($_REQUEST['title'])?$_REQUEST['title']:'');
$description = (!empty($_REQUEST['description'])?$_REQUEST['description']:'');
$selectcategory = (!empty($_REQUEST['selectcategory'])?$_REQUEST['selectcategory']:'');
$submitLink = (isset($_REQUEST['submitLink'])?true : false);
$action = (!empty($_REQUEST['action'])?$_REQUEST['action']:'');
$category_title = (!empty($_REQUEST['category_title'])?$_REQUEST['category_title']:'');
$submitCategory = isset($_POST['submitCategory'])?true:false;
$nameTools = get_lang('Links');
//condition for the session
$session_id = api_get_session_id();
$condition_session = api_get_session_condition($session_id, false);
if (isset($_GET['action']) && $_GET['action']=='addlink') {
$nameTools = '';
$interbreadcrumb[] = array ('url' => 'link.php', 'name' => get_lang('Links'));
$interbreadcrumb[] = array ('url' => 'link.php?action=addlink', 'name' => get_lang('AddLink'));
}
if (isset($_GET['action']) && $_GET['action']=='addcategory') {
$nameTools = '';
$interbreadcrumb[] = array ('url' => 'link.php', 'name' => get_lang('Links'));
$interbreadcrumb[] = array ('url' => 'link.php?action=addcategory', 'name' => get_lang('AddCategory'));
}
if (isset($_GET['action']) && $_GET['action']=='editlink') {
$nameTools = '';
$interbreadcrumb[] = array ('url' => 'link.php', 'name' => get_lang('Links'));
$interbreadcrumb[] = array ('url' => '#', 'name' => get_lang('EditLink'));
}
// Database Table definitions
$tbl_link = Database::get_course_table(TABLE_LINK);
$tbl_categories = Database::get_course_table(TABLE_LINK_CATEGORY);
//statistics
event_access_tool(TOOL_LINK);
Display::display_header($nameTools, 'Links');
?>
<script type="text/javascript">
/* <![CDATA[ */
function MM_popupMsg(msg) { //v1.0
confirm(msg);
}
/* ]]> */
</script>
<?php
/*
-----------------------------------------------------------
Action Handling
-----------------------------------------------------------
*/
$nameTools = get_lang("Links");
if(isset($_GET['action'])) {
switch($_GET['action']) {
case "addlink":
if($link_submitted)
{
if(!addlinkcategory("link")) // here we add a link
{
unset($submitLink);
}
}
break;
case "addcategory":
if($category_submitted)
{
if(!addlinkcategory("category")) // here we add a category
{
unset($submitCategory);
}
}
break;
case "importcsv":
if($_POST["submitImport"])
{
import_csvfile();
}
break;
case "deletelink":
deletelinkcategory("link"); // here we delete a link
break;
case "deletecategory":
deletelinkcategory("category"); // here we delete a category
break;
case "editlink":
editlinkcategory("link"); // here we edit a link
break;
case "editcategory":
editlinkcategory("category"); // here we edit a category
break;
case "visible":
change_visibility($_GET['id'],$_GET['scope']); // here we edit a category
break;
case "invisible":
change_visibility($_GET['id'],$_GET['scope']); // here we edit a category
break;
}
}
/*
-----------------------------------------------------------
Introduction section
-----------------------------------------------------------
*/
Display::display_introduction_section(TOOL_LINK);
if (api_is_allowed_to_edit(null, true) and isset($_GET['action'])) {
echo '<div class="actions">';
//echo '<a href="link.php?cidReq='.Security::remove_XSS($_GET['cidReq']).'&amp;urlview='.Security::remove_XSS($_GET['urlview']).'">'.Display::return_icon('back.png',get_lang('BackToLinksOverview')).get_lang('BackToLinksOverview').'</a>';
echo '</div>';
if(api_get_setting('search_enabled')=='true') {
if (!extension_loaded('xapian')) {
Display::display_error_message(get_lang('SearchXapianModuleNotInstaled'));
}
}
// Displaying the correct title and the form for adding a category or link. This is only shown when nothing
// has been submitted yet, hence !isset($submitLink)
if (($_GET['action']=="addlink" or $_GET['action']=="editlink") and empty($_POST['submitLink'])) {
echo '<div class="row">';
if ($_GET['action']=="addlink")
{echo '<div class="form_header">'.get_lang("LinkAdd").'</div>';}
else
{echo '<div class="form_header">'.get_lang("LinkMod").'</div>';}
echo '</div>';
if ($category=="") {
$category=0;
}
echo "<form method=\"post\" action=\"".api_get_self()."?action=".Security::remove_XSS($_GET['action'])."&amp;urlview=".Security::remove_XSS($urlview)."\">";
if ($_GET['action']=="editlink")
{
echo "<input type=\"hidden\" name=\"id\" value=\"".Security::remove_XSS($_GET['id'])."\" />";
$clean_link_id=trim(Security::remove_XSS($_GET['id']));
}
echo ' <div class="row">
<div class="label">
<span class="form_required">*</span> '.get_lang('Url').'
</div>
<div class="formw">
<input type="text" name="urllink" size="50" value="' . (empty($urllink)?'http://':api_htmlentities($urllink, ENT_COMPAT, $charset)) . '" />
</div>
</div>';
echo ' <div class="row">
<div class="label">
'.get_lang('LinkName').'
</div>
<div class="formw">
<input type="text" name="title" size="50" value="' . api_htmlentities($title,ENT_QUOTES,$charset) . '" />
</div>
</div>';
echo ' <div class="row">
<div class="label">
'.get_lang('Metadata').'
</div>
<div class="formw">
<a href="../metadata/index.php?eid='.urlencode('Link.'.$clean_link_id).'">'.get_lang('AddMetadata').'</a>
</div>
</div>';
echo ' <div class="row">
<div class="label">
'.get_lang('Description').'
</div>
<div class="formw">
<textarea rows="3" cols="50" name="description">' . api_htmlentities($description,ENT_QUOTES,$charset) . '</textarea>
</div>
</div>';
$sqlcategories = "SELECT * FROM ".$tbl_categories." $condition_session ORDER BY display_order DESC";
$resultcategories = Database::query($sqlcategories);
if (Database::num_rows($resultcategories)) {
echo ' <div class="row">
<div class="label">
'.get_lang('Category').'
</div>
<div class="formw">';
echo ' <select name="selectcategory">';
echo ' <option value="0">--</option>';
while ($myrow = Database::fetch_array($resultcategories))
{
echo " <option value=\"".$myrow["id"]."\"";
if ($myrow["id"]==$category)
{echo " selected";}
echo ">".$myrow["category_title"]."</option>";
}
echo ' </select>';
echo ' </div>
</div>';
}
echo ' <div class="row">
<div class="label">
'.get_lang('OnHomepage').'?
</div>
<div class="formw">
<input id="id_check_target" class="checkbox" type="checkbox" name="onhomepage" id="onhomepage" value="1"'.$onhomepage.'><label for="onhomepage"> '.get_lang('Yes').'</label>
</div>
</div>';
echo ' <div class="row" id="div_target">
<div class="label">
'.get_lang('AddTargetOfLinkOnHomepage').'
</div>
<div class="formw" >
<select name="target_link" id="target_link">
<option value="_self">_self</option>
<option value="_blank">_blank</option>
<option value="_parent">_parent</option>
<option value="_top">_top</option>
</select>
</div>
</div>';
if(api_get_setting('search_enabled')=='true')
{
require_once(api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php');
$specific_fields = get_specific_field_list();
echo ' <div class="row">
<div class="label">
'.get_lang('SearchFeatureDoIndexLink').'?
</div>
<div class="formw">
<input class="checkbox" type="checkbox" name="index_document" id="index_document" checked="checked"><label for="index_document"> '.get_lang('Yes').'</label>
</div>';
foreach ($specific_fields as $specific_field) {
//Author : <input name="A" type="text" />
$default_values = '';
if ($_GET['action']=="editlink")
{
$filter = array('course_code'=> "'". api_get_course_id() ."'", 'field_id' => $specific_field['id'], 'ref_id' => Security::remove_XSS($_GET['id']), 'tool_id' => '\''. TOOL_LINK .'\'');
$values = get_specific_field_values_list($filter, array('value'));
if ( !empty($values) ) {
$arr_str_values = array();
foreach ($values as $value) {
$arr_str_values[] = $value['value'];
}
$default_values = implode(', ', $arr_str_values);
}
}
$sf_textbox = '
<div class="row">
<div class="label">%s</div>
<div class="formw">
<input name="%s" type="text" value="%s"/>
</div>
</div>';
echo sprintf($sf_textbox, $specific_field['name'], $specific_field['code'], $default_values);
}
}
echo ' <div class="row">
<div class="label">
</div>
<div class="formw">
<button class="save" type="Submit" name="submitLink" value="OK">'.get_lang('SaveLink').'</button>
</div>
</div>';
echo '</form>';
} elseif(($_GET['action']=="addcategory" or $_GET['action']=="editcategory") and !$submitCategory) {
echo '<div class="row">';
if ($_GET['action']=="addcategory") {
echo '<div class="form_header">'.get_lang('CategoryAdd').'</div>';
$my_cat_title=get_lang('CategoryAdd');
} else {
echo '<div class="form_header">'.get_lang('CategoryMod').'</div>';
$my_cat_title=get_lang('CategoryMod');
}
echo "</div>\n\n";
echo "<form method=\"post\" action=\"".api_get_self()."?action=".Security::remove_XSS($_GET['action'])."&amp;urlview=".Security::remove_XSS($urlview)."\">";
if ($_GET['action']=="editcategory")
{
echo "<input type=\"hidden\" name=\"id\" value=\"".$id."\" />";
}
echo ' <div class="row">
<div class="label">
<span class="form_required">*</span> '.get_lang('CategoryName').'
</div>
<div class="formw">
<input type="text" name="category_title" size="50" value="'.api_htmlentities($category_title,ENT_QUOTES,$charset).'" />
</div>
</div>';
echo ' <div class="row">
<div class="label">
'.get_lang('Description').'
</div>
<div class="formw">
<textarea rows="3" cols="50" name="description">'.api_htmlentities($description,ENT_QUOTES,$charset).'</textarea>
</div>
</div>';
echo ' <div class="row">
<div class="label">
</div>
<div class="formw">
<button class="save" type="submit" name="submitCategory">'.$my_cat_title.' </button>
</div>
</div>';
echo "</form>";
}
/*elseif(($_GET['action']=="importcsv") and !$submitImport) // RH start
{
echo "<h4>", get_lang('CsvImport'), "</h4>\n\n",
"<form method=\"post\" action=\"".api_get_self()."?action=".$_GET['action']."&amp;urlview=".$urlview."\" enctype=\"multipart/form-data\">",
// uncomment if you want to set a limit: '<input type="hidden" name="MAX_FILE_SIZE" value="32768">', "\n",
'<input type="file" name="import_file" size="30">', "\n",
"<input type=\"Submit\" name=\"submitImport\" value=\"".get_lang('Ok')."\">",
"</form>";
echo get_lang('CsvExplain');
}*/
}
if (!empty($down)) {
movecatlink($down);
}
if (!empty($up)) {
movecatlink($up);
}
if (empty($_GET['action']) || ($_GET['action']!='editlink' && $_GET['action']!='addcategory' && $_GET['action']!='addlink') || $link_submitted || $category_submitted) {
/*
-----------------------------------------------------------
Action Links
-----------------------------------------------------------
*/
if ((isset($_GET['action'] ) && $_GET['action']=='editcategory' && isset($_GET['id'])) || (isset($_GET['action']) && $_GET['action']=='addcategory')) {
echo '<br/><br/><br/>';
}
echo '<div class="actions">';
if(api_is_allowed_to_edit(null, true)) {
$urlview = Security::remove_XSS($urlview);
echo Display::return_icon('linksnew.gif',get_lang('LinkAdd'))." <a href=\"".api_get_self()."?".api_get_cidreq()."&action=addlink&amp;category=".(!empty($category)?$category:'')."&amp;urlview=$urlview\">".get_lang("LinkAdd")."</a>\n";
echo Display::return_icon('folder_new.gif', get_lang("CategoryAdd"))." <a href=\"".api_get_self()."?".api_get_cidreq()."&action=addcategory&amp;urlview=".$urlview."\">".get_lang("CategoryAdd")."</a>\n";
/* "<a href=\"".api_get_self()."?".api_get_cidreq()."&action=importcsv&amp;urlview=".$urlview."\">".get_lang('CsvImport')."</a>\n", // RH*/
}
//making the show none / show all links. Show none means urlview=0000 (number of zeros depending on the
//number of categories). Show all means urlview=1111 (number of 1 depending on teh number of categories).
$sqlcategories = "SELECT * FROM ".$tbl_categories." $condition_session ORDER BY display_order DESC";
$resultcategories = Database::query($sqlcategories);
$aantalcategories = Database::num_rows($resultcategories);
if ($aantalcategories > 0) {
echo Display::return_icon('remove.gif', $shownone)." <a href=\"".api_get_self()."?".api_get_cidreq()."&urlview=";
for($j = 1; $j <= $aantalcategories; $j++) {
echo "0";
}
echo "\">".get_lang('shownone')."</a>";
echo Display::return_icon('add.gif', $showall)." <a href=\"".api_get_self()."?".api_get_cidreq()."&urlview=";
for($j = 1; $j <= $aantalcategories; $j++)
{
echo "1";
}
echo "\">".get_lang('showall')."</a>";
}
echo '</div>';
//Starting the table which contains the categories
$sqlcategories = "SELECT * FROM ".$tbl_categories." $condition_session ORDER BY display_order DESC";
$resultcategories = Database::query($sqlcategories);
echo '<table class="data_table">';
// displaying the links which have no category (thus category = 0 or NULL), if none present this will not be displayed
$sqlLinks = "SELECT * FROM ".$tbl_link." WHERE category_id=0 or category_id IS NULL";
$result = Database::query($sqlLinks);
$numberofzerocategory=Database::num_rows($result);
if ($numberofzerocategory!==0) {
echo "<tr><th style=\"font-weight: bold; text-align:left;padding-left: 10px;\"><i>".get_lang('General')."</i></th></tr>";
echo '</table>';
showlinksofcategory(0);
}
$i=0;
$catcounter=1;
$view="0";
while ($myrow = Database::fetch_array($resultcategories)) {
//validacion when belongs to a session
$session_img = api_get_session_image($myrow['session_id'], $_user['status']);
//if (!isset($urlview))
if ($urlview == '')
{
// No $view set in the url, thus for each category link it should be all zeros except it's own
makedefaultviewcode($i);
}
else
{
$view=$urlview;
$view[$i]="1";
}
// if the $urlview has a 1 for this categorie, this means it is expanded and should be desplayed as a
// - instead of a +, the category is no longer clickable and all the links of this category are displayed
$myrow["description"]=text_filter($myrow["description"]);
if ($urlview[$i]=="1")
{
$newurlview=$urlview;
$newurlview[$i]="0";
echo '<tr>';
echo '<table class="data_table">';
echo '<tr>';
echo '<th width="81%" style="font-weight: bold; text-align:left;padding-left: 5px;">';
echo '<a href="'.api_get_self()."?".api_get_cidreq()."&urlview=".Security::remove_XSS($newurlview)."\">";
echo "<img src=../img/remove.gif>&nbsp;&nbsp;".api_htmlentities($myrow["category_title"],ENT_QUOTES,$charset)."</a><br/>&nbsp;&nbsp;&nbsp;".$myrow["description"];
if (api_is_allowed_to_edit(null,true))
{
echo '<th>';
showcategoryadmintools($myrow["id"]);
echo '</th>';
}
echo '</th>';
echo '</tr>';
echo '</table>';
echo showlinksofcategory($myrow["id"]);
echo '</tr>';
}
else
{
echo '<tr>';
echo '<table class="data_table">';
echo '<tr>';
echo '<th width="81%" style="font-weight: bold; text-align:left;padding-left: 5px;"><a href="'.api_get_self()."?".api_get_cidreq()."&urlview=";
echo is_array($view)?implode('',$view):$view;
echo "\"><img src=../img/add.gif>&nbsp;&nbsp;". api_htmlentities($myrow["category_title"],ENT_QUOTES,$charset). $session_img;
echo'</a><br />&nbsp;&nbsp;&nbsp;';
echo $myrow["description"];
if (api_is_allowed_to_edit(null, true))
{
echo '<th style="text-align:center;">';
showcategoryadmintools($myrow["id"]);
echo '</th>';
}
echo '</th>';
echo '</tr>';
echo '</table>';
echo '</tr>';
}
// displaying the link of the category
$i++;
}
echo '</table>';
////////////////////////////////////////////////////////////////////////////
}
Display::display_footer();
?>