<?php // $Id: index.php 16620 2008-10-25 20:03:54Z yannoo $
/*
==============================================================================
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
==============================================================================
*/
/**
==============================================================================
* This is a function library for the learning path.
*
* Due to the face that the learning path has been built upon the resoucelinker,
* naming conventions have changed at least 2 times. You can see here in order the :
* 1. name used in the first version of the resourcelinker
* 2. name used in the first version of the LP
* 3. name used in the second (current) version of the LP
*
* 1. 2. 3.
* Category = Chapter = Module
* Item (?) = Item = Step
*
* @author Denes Nagy < darkden @ evk . bke . hu > , main author
* @author Roan Embrechts, some code cleaning
* @author Yannick Warnier < yannick.warnier @ dokeos . com > , multi-level learnpath behaviour + new SCORM tool
* @access public
* @package dokeos.learnpath
* @todo rename functions to coding conventions: not deleteitem but delete_item, etc
* @todo rewrite functions to comply with phpDocumentor
* @todo remove code duplication
==============================================================================
*/
/**
* This function deletes an item
* @param integer $id: the item we want to delete
* @return boolean True if item was deleted, false if not found or error
**/
function deleteitem($id)
{
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
//get the display order for this item before it is deleted
$sql = "SELECT display_order, parent_item_id FROM $tbl_lp_item WHERE id=$id";
$result = api_sql_query($sql, __FILE__, __LINE__);
if (mysql_num_rows($result) == 0)
{
return false;
}
$row = mysql_fetch_row($result);
$display_order = $row[0];
$parent_item_id = $row[1];
// delete the item
$sql = "DELETE FROM $tbl_learnpath_item WHERE id='$id'";
$result = api_sql_query($sql, __FILE__, __LINE__);
if ($result === false)
{
return false;
}
// update the other items and chapters
$sql = "UPDATE $tbl_learnpath_item SET display_order = display_order-1 WHERE display_order > $display_order AND parent_item_id = $parent_item_id";
$result = api_sql_query($sql, __FILE__, __LINE__);
$sql = "UPDATE $tbl_learnpath_chapter SET display_order = display_order-1 WHERE display_order > $display_order AND parent_item_id = $parent_item_id";
$result = api_sql_query($sql, __FILE__, __LINE__);
//return
return true;
}
/**
* This function deletes a module(chapter) and all its steps(items).
*
* @param integer id of the chapter we want to delete
* @return boolean True on success and false if not found or error
**/
function deletemodule($parent_item_id)
{
global $learnpath_id;
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
//Added for multi-level behaviour - slightly recursive
$sql = "SELECT * FROM $tbl_learnpath_chapter WHERE lp_id=$learnpath_id";
$result = api_sql_query($sql, __FILE__, __LINE__);
while ($row = mysql_fetch_array($result))
{
if ($row['parent_item_id'] == $parent_item_id)
{
//delete every subchapter
if (deletemodule($row['id']) === false)
{
return false;
}
}
}
//get this chapter's display order
$sql = "SELECT display_order, parent_item_id FROM $tbl_learnpath_chapter WHERE id=$parent_item_id and lp_id=$learnpath_id";
$result = api_sql_query($sql, __FILE__, __LINE__);
if (mysql_num_rows($result) == 0)
{
return false;
}
$row = mysql_fetch_row($result);
$display_order = $row[0];
$parent_id = $row[1];
//delete the chapter itself
$sql = "DELETE FROM $tbl_learnpath_chapter WHERE (id=$parent_item_id and lp_id=$learnpath_id)";
$result = api_sql_query($sql, __FILE__, __LINE__);
//delete items from that chapter
$sql2 = "DELETE FROM $tbl_learnpath_item WHERE parent_item_id=$parent_item_id";
$result = api_sql_query($sql2, __FILE__, __LINE__);
//update all other chapters accordingly
$sql = "UPDATE $tbl_learnpath_item SET display_order = display_order-1 WHERE display_order > $display_order AND parent_item_id = $parent_id";
$result = api_sql_query($sql, __FILE__, __LINE__);
$sql = "UPDATE $tbl_learnpath_chapter SET display_order = display_order-1 WHERE display_order > $display_order AND parent_item_id = $parent_id";
$result = api_sql_query($sql, __FILE__, __LINE__);
return true;
}
/**
* This function deletes an entire path.
*
* @param integer $id: the path we want to delete
* @return void
**/
function deletepath($path_id)
{
$tbl_learnpath_main = Database :: get_course_table(TABLE_LEARNPATH_MAIN);
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
$sql = "DELETE FROM $tbl_learnpath_main WHERE lp_id='$path_id'";
$result = api_sql_query($sql, __FILE__, __LINE__);
//@TODO check how this function is used before uncommenting the following
//also delete all elements inside that path
$sql = "SELECT * FROM $tbl_learnpath_chapter WHERE lp_id=$path_id";
$result = api_sql_query($sql, __FILE__, __LINE__);
while ($row = mysql_fetch_array($result))
{
deletemodule($row['id']);
}
}
/**
* This function moves an item.
*
* @param string $direction: move the given chapter up or down
* @param integer Item ID
* @param integer $moduleid: the id of the chapter the element resides in
* @return boolean Returns false on error
* @note With this new version, the moveitem deals with items AND directories (not the base-level modules). This is a lot more complicated but is a temporary step towards new database structure as 'everything is an item'
**/
function moveitem($direction, $id, $moduleid, $type = 'item')
{
global $learnpath_id;
$tbl_learnpath_item = Database::get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database::get_course_table(TABLE_LEARNPATH_CHAPTER);
$tree = get_learnpath_tree($learnpath_id);
$orig_order = 0;
$orig_type = '';
$orig_id = $id;
foreach ($tree[$moduleid] as $row)
{
//if this is the element we want (be it a chapter or an item), get its data
if (($row['id'] == $id) & & ($row['type'] == $type))
{
$orig_order = $row['display_order'];
$orig_type = $row['type'];
break;
}
}
$dest_order = 0;
$dest_type = '';
$dest_id = 0;
if ($direction == "up")
{
if (!empty ($tree[$moduleid][$orig_order -1]))
{
$dest_order = $orig_order -1;
$dest_type = $tree[$moduleid][$orig_order -1]['type'];
$dest_id = $tree[$moduleid][$orig_order -1]['id'];
}
else
{
return false;
}
}
else
{
//move down
if (!empty ($tree[$moduleid][$orig_order +1]))
{
$dest_order = $orig_order +1;
$dest_type = $tree[$moduleid][$orig_order +1]['type'];
$dest_id = $tree[$moduleid][$orig_order +1]['id'];
}
else
{
return false;
}
}
$sql1 = '';
$sql2 = '';
if ($orig_type == 'chapter')
{
$sql1 = "UPDATE $tbl_learnpath_chapter SET display_order = ".$dest_order." WHERE (id=$orig_id and parent_item_id=$moduleid)";
}
elseif ($orig_type == 'item')
{
$sql1 = "UPDATE $tbl_learnpath_item SET display_order = ".$dest_order." WHERE (id=$orig_id and parent_item_id=$moduleid)";
}
else
{
return false;
}
if ($dest_type == 'chapter')
{
$sql2 = "UPDATE $tbl_learnpath_chapter SET display_order = ".$orig_order." WHERE (id='$dest_id' and parent_item_id=$moduleid)";
}
elseif ($dest_type == 'item')
{
$sql2 = "UPDATE $tbl_learnpath_item SET display_order = ".$orig_order." WHERE (id='$dest_id' and parent_item_id=$moduleid)";
}
else
{
return false;
}
api_sql_query($sql1, __FILE__, __LINE__);
api_sql_query($sql2, __FILE__, __LINE__);
}
/**
* This function moves a module (also called chapter or category).
*
* @param string $direction: move the given chapter up or down
* @param integer $id: the id of the chapter we want to move
* @return void
**/
function movemodule($direction, $id)
{
global $learnpath_id;
$tbl_learnpath_chapter = Database :: get_course_learnpath_chapter_table();
if ($direction == "up")
{
$sortDirection = "DESC";
}
else
{
$sortDirection = "ASC";
}
// Select all chapters of first level (parent_item_id = 0)
$sql = "SELECT * FROM $tbl_learnpath_chapter where (lp_id=$learnpath_id AND parent_item_id = 0) ORDER BY display_order $sortDirection";
$result = api_sql_query($sql, __FILE__, __LINE__);
$previousrow = "";
// see similar comment in moveitem() function
// @TODO: this only works for chapters in multi-level mode. Why not gather
// this function and moveitem to keep only one multi-uses function?
while ($row = mysql_fetch_array($result))
{
// step 2: performing the move (only happens when passed trhough step 1 at least once)
if (!empty ($this_cat_order))
{
$next_cat_order = $row["display_order"];
$next_cat_id = $row["id"];
$sql1 = "UPDATE $tbl_learnpath_chapter SET display_order = '$next_cat_order' WHERE (id='$this_cat_id' and lp_id=$learnpath_id)";
$sql2 = "UPDATE $tbl_learnpath_chapter SET display_order = '$this_cat_order' WHERE (id='$next_cat_id' and lp_id=$learnpath_id)";
api_sql_query($sql1, __FILE__, __LINE__);
api_sql_query($sql2, __FILE__, __LINE__);
unset ($this_cat_order);
unset ($this_cat_id);
unset ($next_cat_order);
unset ($next_cat_id);
break;
}
// step 1: looking for the order of the row we want to move
if ($row["id"] == $id)
{
$this_cat_order = $row["display_order"];
$this_cat_id = $id;
}
}
}
/**
* Inserts a new element in a learnpath table (item or chapter)
* @param string Element type ('chapter' or 'item')
* @param string Chapter name
* @param string Chapter description (optional)
* @param integer Parent chapter ID (default: 0)
* @param integer Learnpath ID
* @param mixed If type 'item', then array(prereq_id=>value, prereq_..)
* @return integer The new chapter ID, or false on failure
* @TODO Finish this function before it is used. Currently only chapters can be added using it.
* @note This function is currently never used!
*/
function insert_item($type = 'item', $name, $chapter_description = '', $parent_id = 0, $learnpath_id = 0, $params = null)
{
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
// getting the last order number from the chapters table, in this learnpath, for the parent chapter given
$sql = "SELECT * FROM $tbl_learnpath_chapter
WHERE lp_id=$learnpath_id
AND parent_item_id = $parent_id
ORDER BY display_order DESC";
$result = api_sql_query($sql, __FILE__, __LINE__);
$row = mysql_fetch_array($result);
$last_chapter_order = $row["display_order"];
// getting the last order number of the items
$sql = "SELECT * FROM $tbl_learnpath_item
AND parent_item_id = $parent_id
ORDER BY display_order DESC";
$result = api_sql_query($sql, __FILE__, __LINE__);
$row = mysql_fetch_array($result);
$last_item_order = $row["display_order"];
$new_order = max($last_chapter_order, $last_item_order) + 1;
if ($type === 'chapter')
{
$sql = "INSERT INTO $tbl_learnpath_chapter
(lp_id, chapter_name, chapter_description, display_order)
VALUES ('".domesticate($learnpath_id)."',
'".domesticate(htmlspecialchars($chapter_name))."',
'".domesticate(htmlspecialchars($chapter_description))."',
$new_order )";
$result = api_sql_query($sql, __FILE__, __LINE__);
if ($result === false)
{
return false;
}
$id = Database :: get_last_insert_id();
}
elseif ($type === 'item')
{
$sql = "INSERT INTO $tbl_learnpath_item
(parent_item_id, item_type, item_id, display_order)
VALUES ('".domesticate($parent_id)."',
'".domesticate(htmlspecialchars($item_type))."',
'".domesticate(htmlspecialchars($item_id))."',
$new_order )";
$result = api_sql_query($sql, __FILE__, __LINE__);
if ($result === false)
{
return false;
}
$id = Database :: get_last_insert_id();
}
return $id;
}
/**
* This function returns an array with all the learnpath categories/chapters
* @return array List of learnpath chapter titles
**/
function array_learnpath_categories()
{
#global $tbl_learnpath_chapter;
global $learnpath_id;
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
$sql = "SELECT * FROM $tbl_learnpath_chapter WHERE (lp_id=$learnpath_id) ORDER BY display_order ASC";
$result = api_sql_query($sql, __FILE__, __LINE__);
while ($row = mysql_fetch_array($result))
{
$array_learnpath_categories[] = array ($row["id"], $row["chapter_name"]);
}
//$array_learnpath_categories=array($array_learnpath_categories_name,$array_learnpath_categories_id);
return $array_learnpath_categories;
}
/**
* Displays the learnpath chapters(=modules,categories) and their contents.
* @param integer Chapter ID to display now (enables recursive behaviour)
* @param array The array as returned by get_learnpath_tree, with all the elements of a learnpath compiled and structured into the array, by chapter id
* @param integer Level (the depth of the call - helps in display)
* @todo eliminate all global $lang declarations, use get_lang, improve structure.
* @author Denes Nagy
* @author Roan Embrechts
* @author Yannick Warnier < yannick.warnier @ dokeos . com > - complete redesign for multi-level learnpath chapters
*/
function display_learnpath_chapters($parent_item_id = 0, $tree = array (), $level = 0)
{
//error_log('New LP - In learnpath_functions::display_learnpath_chapters',0);
global $color2;
global $xml_output;
global $learnpath_id;
$tbl_lp_item = Database::get_course_table('lp_item');
// @todo: coding standards: Language variables are CaMMelCaSe, all other variables should use the underscoring method.
$lang_move_down = get_lang('_move_down');
$lang_move_up = get_lang('lang_move_up');
$lang_edit_learnpath_module = get_lang('lang_edit_learnpath_module');
$lang_delete_learnpath_module = get_lang('lang_delete_learnpath_module');
$lang_nochapters = get_lang('lang_nochapters');
$lang_prerequisites = get_lang('lang_prerequisites');
$lang_prerequisites_limit = get_lang('lang_prerequisites_limit');
$lang_add_learnpath_item = get_lang('lang_add_learnpath_item');
$lang_add_item = get_lang('lang_add_item');
$lang_title_and_desc = get_lang('lang_title_and_desc');
$lang_change_order = get_lang('lang_change_order');
$lang_add_prereqi = get_lang('lang_add_prereqi');
$lang_add_title_and_desc = get_lang('lang_add_title_and_desc');
$lang_delete = get_lang('Delete');
if ($parent_item_id === 0)
{
// this is the first time we use the function, define the tree and display learnpath name
$tree = get_learnpath_tree($learnpath_id);
$num_modules = count($tree);
//$num_modules=mysql_num_rows($result);
if ($num_modules == 0)
{
// do not diplay useless information
//echo "< tr > < td > $lang_nochapters< / td > < / tr > ";
}
else
{
echo " < tr align = 'center' valign = 'top' > \n"." < td > < b > $lang_title_and_desc < / b > < / td > \n"." < td > < b > $lang_add_item < / b > < / td > \n";
if (is_prereq($learnpath_id))
{
echo " < td bgcolor = '#ddddee' > < b > $lang_prerequisites_limit < / b > < / td > \n";
}
else
echo " < td > < b > $lang_prerequisites < / b > < / td > \n";
echo " < td colspan = '2' > < b > $lang_change_order < / b > < / td > < td > < b > $lang_add_prereqi < / b > < / td > \n"." < td > < b > $lang_add_title_and_desc < / b > < / td > < td > < b > $lang_delete < / b > < / td > \n"." < / tr > \n";
}
}
$i = 1;
$counter = 0;
$num_modules = count($tree[$parent_item_id]);
//while ($row=mysql_fetch_array($result))
if (isset ($tree[$parent_item_id]))
{
foreach ($tree[$parent_item_id] as $row)
{
if ($row['item_type'] === 'dokeos_chapter')
{
$xml_output .= "< chapter > ";
$xml_output .= "< chaptertitle > ".$row["title"]."< / chaptertitle > ";
$xml_output .= "< chapterdescription > ".$row["description"]."< / chapterdescription > ";
$counter ++;
if (($counter % 2) == 0)
{
$oddclass = "row_odd";
}
else
{
$oddclass = "row_even";
}
//echo '< tr class = "'.$oddclass.'" > '."\n".' < td > '.str_repeat(" > ", $level)."< img src = '../img/documents.gif' alt = 'folder' / > < a href = '".api_get_self()."?lp_id=$learnpath_id&item_id={$row[' id ' ] } & action = add&type=learnpathitem&SQMSESSID=36812c2dea7d8d6e708d5e6a2f09b0b9' > < b > ".$row['title']."< / b > < / a > "."< br / > < i > < div align = 'justify' > ".str_repeat(" ", $level)."< / i > < / td > \n".' < td align = "center" > < a href = "'.api_get_self()." ? lp_id = $learnpath_id&item_id={$row['id']}&action=add&type=learnpathitem&SQMSESSID=36812c2dea7d8d6e708d5e6a2f09b0b9" > < img src = '../img/0.gif' width = '13' height = '13' border = '0' title = '$lang_add_learnpath_item' > < / a > < / td > \n"." < td " ;
echo '< tr class = "'.$oddclass.'" > '."\n".' < td > '.str_repeat(" > ", $level)."< img src = '../img/documents.gif' alt = 'folder' / > < a href = '".api_get_self()."?lp_id=$learnpath_id&parent_item_id=".$row[' id ' ] . " & action = add_sub_item' > < b > ".$row['title']."< / b > < / a > "."< br / > < i > < div align = 'justify' > ".str_repeat(" ", $level)."< / i > < / td > \n".' < td align = "center" > < a href = "'.api_get_self()." ? lp_id = $learnpath_id&parent_item_id=".$row['id']."&action=add_sub_item\" > < img src = '../img/0.gif' width = '13' height = '13' border = '0' title = '$lang_add_learnpath_item' > < / a > < / td > \n"." < td " ;
if (is_prereq($learnpath_id))
{
echo " bgcolor='#ddddee'";
}
echo ">".$row['prerequisite']."< / td > \n";
// showing the edit, delete and move icons
if (is_allowed_to_edit())
{
$myaction = 'move_item';
if ($i < $num_modules)
{
// if we are still under the number of chapters in this section, show "move down"
//echo " < td align = center > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=".$myaction."&direction=down&moduleid=".$parent_item_id."&id=".$row["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > "."< img src = \"../img/down.gif\" border = \"0\" title = \"$lang_move_down\" > "."< / a > < / td > \n";
echo " < td align = center > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=".$myaction."&direction=down&moduleid=".$parent_item_id."&id=".$row["id"]."' > "."< img src = \"../img/down.gif\" border = \"0\" title = \"$lang_move_down\" > "."< / a > < / td > \n";
}
else
{
echo ' < td align = "center" > < / td > '."\n";
}
if ($i > 1)
{
//echo ' < td align = "center" > '."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=".$myaction."&direction=up&moduleid=".$parent_item_id."&id=".$row["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > "."< img src = \"../img/up.gif\" border = \"0\" title = \"$lang_move_up\" > "."< / a > "."< / td > \n";
echo ' < td align = "center" > '."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=".$myaction."&direction=up&moduleid=".$parent_item_id."&id=".$row["id"]."' > "."< img src = \"../img/up.gif\" border = \"0\" title = \"$lang_move_up\" > "."< / a > "."< / td > \n";
}
else
{
echo ' < td align = "center" > < / td > '."\n";
}
echo " < td align = 'center' > < / td > \n";
//echo " < td align = 'center' > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=editmodule&id=".$row["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > "."< img src = \"../img/edit.gif\" border = \"0\" title = \"$lang_edit_learnpath_module\" > "."< / a > "."< / td > \n";
echo " < td align = 'center' > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=edititem&id=".$row["id"]."' > "."< img src = \"../img/edit.gif\" border = \"0\" title = \"$lang_edit_learnpath_module\" > "."< / a > "."< / td > \n";
//echo " < td align = 'center' > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=deletemodule&id=".$row["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 onclick = \"return confirmation ( ' " . $ row [ ' chapter_name ' ] . " ' ) ; \ " > "."< img src = \"../img/delete.gif\" border = \"0\" title = \"$lang_delete_learnpath_module\" > "."< / a > "."< / td > \n";
echo " < td align = 'center' > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=delete_item&id=".$row["id"]."' onclick = \"return confirmation ( ' " . $ row [ ' title ' ] . " ' ) ; \ " > "."< img src = \"../img/delete.gif\" border = \"0\" title = \"$lang_delete_learnpath_module\" > "."< / a > "."< / td > \n";
}
echo "< / tr > \n";
$i ++;
$xml_output .= "< items > ";
#display_learnpath_items($row["id"]);
display_learnpath_chapters($row['id'], $tree, $level +1);
$xml_output .= "< / items > ";
$xml_output .= "< / chapter > ";
}
else //if //($row['item_type'] === 'item')
{
$row_items = $row;
echo "< tr > \n < td colspan = '2' valign = 'top' > ";
//require('resourcelinker.inc.php');
display_addedresource_link_in_learnpath($row_items["item_type"], $row_items["ref"], '', $row_items["id"], 'builder', 'icon', $level);
if ($row_items["description"])
{
echo "< div align = 'justify' > {$row_items['description']}";
}
echo "< / td > ";
if (is_prereq($learnpath_id))
{
echo '< td bgcolor = "#EEEEFF" > ';
}
else
{
echo "< td > ";
}
if (is_allowed_to_edit())
{
if ($row_items["prerequisite"] < > '')
{
$prereq = $row_items["prerequisite"];
//if ($row_items["prereq_type"] == 'i')
//{
//item
$sql_items2 = "SELECT * FROM $tbl_lp_item WHERE id='$prereq'"; //check if prereq has been deleted
$result_items2 = api_sql_query($sql_items2, __FILE__, __LINE__);
$number_items2 = Database::num_rows($result_items2);
if ($number_items2 == 0)
{
echo $lang_prereq_deleted_error;
}
$row_items2 = mysql_fetch_array($result_items2);
display_addedresource_link_in_learnpath($row_items2["item_type"], $row_items2["ref"], '', $row_items2["id"], 'builder', '', 0);
if ((($row_items2["item_type"] == TOOL_QUIZ) or ($row_items2["item_type"] == 'HotPotatoes')) and ($row_items['prerequisite']))
{
//echo " ({$row_items2['title']})";
}
//}
/*
if ($row_items["prereq_type"] == 'c')
{
//chapter
$sql_items2 = "SELECT * FROM $tbl_lp_item WHERE id='$prereq' AND item_type='dokeos_chapter'"; //check if prereq has been deleted
$result_items2 = api_sql_query($sql_items2, __FILE__, __LINE__);
$number_items2 = Database::num_rows($result_items2);
if ($number_items2 == 0)
{
echo "< font color = 'red' > $lang_prereq_deleted_error< / font > ";
}
$row_items2 = mysql_fetch_array($result_items2);
echo " {$row_items2['title']}";
}*/
}
echo "< / font > < / td > ";
$xml_output .= "< element_type > ".$row_items["item_type"]."< / element_type > ";
$xml_output .= "< element_id > ".$row_items["item_id"]."< / element_id > ";
// move
if ($i < $num_modules)
{
echo "< td align = 'center' > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=moveitem&type=item&direction=down&moduleid=".$parent_item_id."&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > "."< img src = \"../img/down.gif\" border = \"0\" title = \"$lang_move_down\" > "."< / a > "."< / td > ";
}
else
{
echo "< td width = '30' align = 'center' > < / td > ";
}
if ($i > 1)
{
echo "< td align = 'center' > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=moveitem&type=item&direction=up&moduleid=".$parent_item_id."&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > "."< img src = \"../img/up.gif\" border = \"0\" title = \"$lang_move_up\" > "."< / a > ";
}
else
{
echo "< td width = '30' align = 'center' > < / td > ";
}
echo "< / td > "."< td align = 'center' > ";
// edit prereq
echo "< a href = '".api_get_self()."?lp_id=$learnpath_id&action=edititemprereq&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > "."< img src = \"../img/scormpre.gif\" border = \"0\" title = \"$lang_add_prereq\" > "."< / a > "."< / td > ";
// edit
echo "< td align = 'center' > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=edititem&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > "."< img src = \"../img/edit.gif\" border = \"0\" title = \"$lang_edit_learnpath_item\" > "."< / a > "."< / td > ";
// delete
echo "< td align = 'center' > "."< a href = '".api_get_self()."?lp_id=$learnpath_id&action=deleteitem&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > "."< img src = \"../img/delete.gif\" border = \"0\" title = \"$lang_delete_learnpath_item\" onclick = \"return confirmation ( ' " . $ row_items [ " item_type " ] . " ' ) ; \ " > "."< / a > ";
}
$i ++;
echo "< / td > < / tr > ";
}
}
}
}
/**
* Displays all learning paths.
* @return void
* @todo eliminate all global $lang declarations, use get_lang, improve structure.
*/
function display_all_learnpath()
{
global $tbl_tool, $color2;
global $xml_output, $lang_edit_learnpath, $lang_delete_learnpath, $lang_publish, $lang_no_publish, $lang_add_learnpath_chapter_to_path;
$tbl_learnpath_main = Database :: get_course_table(TABLE_LEARNPATH_MAIN);
$sql = "SELECT * FROM $tbl_learnpath_main ORDER BY learnpath_name";
$result = api_sql_query($sql, __FILE__, __LINE__);
$i = 1;
$num_modules = mysql_num_rows($result);
while ($row = mysql_fetch_array($result))
{
//other grey color : #E6E6E6
echo "< tr > < td bgcolor = \"$color2\" width = 400 > < b > ";
echo "< a href = 'learnpath_handler.php?&lp_id={$row[' lp_id ' ] } ' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > {$row['learnpath_name']}< / a > ";
echo "< / b > < br > < i > < div class = text align = justify > {$row['learnpath_description']}< / div > < / i > < / td > ";
// showing the edit, delete and publish icons
if (is_allowed_to_edit())
{
echo "< td bgcolor = \"$color2\" align = center > < a href = 'learnpath_handler.php?lp_id={$row[' lp_id ' ] } & action = add&type=learnpathcategory'&SQMSESSID=36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = '../img/0.gif' width = '13' height = '13' border = '0' title = '$lang_add_learnpath_chapter_to_path' > < / a > < / td > ";
echo "< td bgcolor = \"$color2\" align = center > < a href = '".api_get_self()."?action=editpath&id=".$row["lp_id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/edit.gif\" border = \"0\" title = \"$lang_edit_learnpath\" > < / a > < / td > ";
echo "< td bgcolor = \"$color2\" align = center > < a href = '".api_get_self()."?action=deletepath&id=".$row["lp_id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/delete.gif\" border = \"0\" title = \"$lang_delete_learnpath\" onclick = \"return confirmation ( ' " . $ row2 [ ' learnpath_name ' ] . " ' ) ; \ " > < / a > < / td > ";
$id = $row["lp_id"];
$sql2 = "SELECT * FROM $tbl_learnpath_main where lp_id=$id";
$result2 = api_sql_query($sql2, __FILE__, __LINE__);
$row2 = mysql_fetch_array($result2);
$name = $row2['learnpath_name'];
$sql3 = "SELECT * FROM $tbl_tool where (name=\"$name\" and image='scormbuilder.gif')";
$result3 = api_sql_query($sql3, __FILE__, __LINE__);
$row3 = mysql_fetch_array($result3);
if (($row3["visibility"]) == '1')
{
echo "< td bgcolor = \"$color2\" align = center > < a href = '".api_get_self()."?action=publishpath&set=i&id=".$row["lp_id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/visible.gif\" border = \"0\" title = \"$lang_no_publish\" > < / a > < / td > ";
}
else
{
echo "< td bgcolor = \"$color2\" align = center > < a href = '".api_get_self()."?action=publishpath&set=v&id=".$row["lp_id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/invisible.gif\" border = \"0\" title = \"$lang_publish\" > < / a > < / td > ";
}
}
$i ++;
echo "< tr > < td > < / td > < / tr > ";
}
}
/**
* Displays the learning path items/steps.
* @param integer Category ID
* @return void
* @todo eliminate all global $lang declarations, use get_lang, improve structure.
*/
function display_learnpath_items($categoryid)
{
global $xml_output;
global $lang_prerequisites, $lang_move_down, $lang_move_up, $lang_edit_learnpath_item, $lang_delete_learnpath_item, $learnpath_id, $lang_add_prereq, $lang_prereq_deleted_error, $lang_pre_short, $langThisItem;
$tbl_lp_item = Database::get_course_table('lp_item');
$sql_items = "SELECT * FROM $tbl_lp_item WHERE parent_item_id='$categoryid' ORDER BY display_order ASC";
$result_items = api_sql_query($sql_items,__FILE__,__LINE__);
$number_items = Database::num_rows($result_items);
$i = 1;
error_log('Selected item under '.$categoryid,0);
while ($row_items = Database::fetch_array($result_items))
{
echo "< tr > < td colspan = '2' valign = 'top' > ";
display_addedresource_link_in_learnpath($row_items["item_type"], $row_items["ref"], '', $row_items["id"], 'builder', 'icon');
if ($row_items["description"])
{
echo "< div align = 'justify' > < font color = '#999999' > {$row_items['description']}< / font > ";
}
echo "< / td > ";
if (is_prereq($learnpath_id))
{
echo '< td bgcolor = "#EEEEFF" > ';
}
else
{
echo "< td > ";
}
if (is_allowed_to_edit())
{
error_log('Is allowed to edit item'.$row_items['id'],0);
//TODO: fix by adding true prerequisites parsing (and cycle through)
//Over simplification here, we transform prereq_id field into prerequisite field
if ($row_items["prerequisite"] < > '')
{
$prereq = $row_items["prerequisite"];
//if ($row_items["prereq_type"] == 'i')
//{
//item
$sql_items2 = "SELECT * FROM $tbl_lp_item WHERE id='$prereq'"; //check if prereq has been deleted
$result_items2 = api_sql_query($sql_items2);
$number_items2 = Database::num_rows($result_items2);
if ($number_items2 == 0)
{
echo "< font color = red > $lang_prereq_deleted_error< / font > ";
}
$row_items2 = Database::fetch_array($result_items2);
display_addedresource_link_in_learnpath($row_items2["item_type"], $row_items2["ref"], '', $row_items2["id"], 'builder', '');
if ((($row_items2["item_type"] == 'Exercise') or ($row_items2["item_type"] == 'HotPotatoes')) and ($row_items['prerequisites']))
{
echo " ({$row_items2['title']})";
}
//}
/*if ($row_items["prereq_type"] == 'c')
{
//chapter
$sql_items2 = "SELECT * FROM $tbl_learnpath_chapter WHERE id='$prereq'"; //check if prereq has been deleted
$result_items2 = api_sql_query($sql_items2,__FILE__,__LINE__);
$number_items2 = Database::num_rows($result_items2);
if ($number_items2 == 0)
{
echo "< font color = red > $lang_prereq_deleted_error< / font > ";
}
$row_items2 = Database::fetch_array($result_items2);
echo " {$row_items2['chapter_name']}";
}*/
}
echo "< / font > < / td > ";
$xml_output .= "< element_type > ".$row_items["item_type"]."< / element_type > ";
$xml_output .= "< element_id > ".$row_items["id"]."< / element_id > ";
// move
if ($i < $number_items)
{
echo "< td align = 'center' > < a href = '".api_get_self()."?lp_id=$learnpath_id&action=moveitem&direction=down&moduleid=".$categoryid."&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/down.gif\" border = \"0\" title = \"$lang_move_down\" > < / a > < / td > ";
}
else
{
echo "< td width = '30' align = 'center' > < / td > ";
}
if ($i > 1)
{
echo "< td align = 'center' > < a href = '".api_get_self()."?lp_id=$learnpath_id&action=moveitem&direction=up&moduleid=".$categoryid."&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/up.gif\" border = \"0\" title = \"$lang_move_up\" > < / a > ";
}
else
{
echo "< td width = '30' align = 'center' > < / td > ";
}
echo "< / td > < td align = 'center' > ";
// edit prereq
echo "< a href = '".api_get_self()."?lp_id=$learnpath_id&action=edititemprereq&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/scormpre.gif\" border = \"0\" title = \"$lang_add_prereq\" > < / a > < / td > ";
// edit
echo "< td align = 'center' > < a href = '".api_get_self()."?lp_id=$learnpath_id&action=edititem&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/edit.gif\" border = \"0\" title = \"$lang_edit_learnpath_item\" > < / a > < / td > ";
// delete
echo "< td align = 'center' > ";
echo "< a href = '".api_get_self()."?lp_id=$learnpath_id&action=deleteitem&id=".$row_items["id"]."' & SQMSESSID = 36812c2dea7d8d6e708d5e6a2f09b0b9 > < img src = \"../img/delete.gif\" border = \"0\" title = \"$lang_delete_learnpath_item\" onclick = \"return confirmation ( ' " . $ langThisItem . " ' ) ; \ " > < / a > ";
}
$i ++;
echo "< / td > < / tr > ";
}
}
/**
* This function returns the items belonging to the chapter that contains the given item (brother items)
* @param integer Item id
* @return array Table containing the items
*/
function learnpath_items($itemid)
{
global $xml_output;
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$sql_items = "SELECT parent_item_id FROM $tbl_lp_item WHERE id='$itemid'";
$moduleid_sql = api_sql_query($sql_items);
$moduleid_array = mysql_fetch_array($moduleid_sql); //first row of the results
$moduleid = $moduleid_array["parent_item_id"];
$sql_items = "SELECT * FROM $tbl_lp_item WHERE parent_item_id='$moduleid' ORDER BY display_order ASC";
$result_items = api_sql_query($sql_items);
$ar = mysql_fetch_array($result_items);
while ($ar != '')
{
$result[] = $ar;
$ar = mysql_fetch_array($result_items);
}
return $result;
}
/**
* This function returns the chapters belonging to the path that contais the given chapter (brother chapters)
* @param integer Learnpath id
* @return array Table containing the chapters
*/
function learnpath_chapters($learnpath_id)
{
global $xml_output, $learnpath_id;
//$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
$tbl_lp_item = Database::get_course_table('lp_item');
$sql_items = "SELECT * FROM $tbl_lp_item WHERE lp_id='$learnpath_id' AND item_type='dokeos_chapter' ORDER BY display_order ASC";
//$sql_items = "SELECT * FROM $tbl_learnpath_chapter WHERE lp_id='$learnpath_id' ORDER BY display_order ASC";
$result_items = api_sql_query($sql_items, __FILE__, __LINE__);
$ar = mysql_fetch_array($result_items);
while ($ar != '')
{
$result[] = $ar;
$ar = mysql_fetch_array($result_items);
}
return $result;
}
/**
* This function tells if a learnpath contains items which are prerequisite to other items
* @param integer Learnpath id
* @return boolean True if this learnpath contains an item which is a prerequisite to something
*/
function is_prereq($learnpath_id)
{
global $xml_output;
$tbl_lp_item = Database::get_course_table('lp_item');
$prereq = false;
$sql_items = "SELECT * FROM $tbl_lp_item WHERE lp_id='$learnpath_id' AND parent_item_id=0 ORDER BY display_order ASC";
$result_items = api_sql_query($sql_items,__FILE__,__LINE__);
while ($ar = Database::fetch_array($result_items))
{
$c = $ar['id'];
$sql_items2 = "SELECT * FROM $tbl_lp_item WHERE lp_id = $learnpath_id AND parent_item_id='$c' ORDER BY display_order ASC";
$result_items2 = api_sql_query($sql_items2,__FILE__,__LINE__);
while ($ar2 = Database::fetch_array($result_items2))
{
if ($ar2['prerequisite'] != '')
{
$prereq = true;
}
}
}
return ($prereq);
}
/**
* This function returns the prerequisite sentence
* @param integer Item ID
* @return string Prerequisite warning text
*/
function prereqcheck($id_in_path)
{
//1 Initialise and import working vars
global $learnpath_id, $_user;
global $langPrereqToEnter, $langPrereqTestLimit1, $langPrereqTestLimit2, $langPrereqTestLimitNow, $langPrereqFirstNeedTo, $langPrereqModuleMinimum1, $langPrereqModuleMinimum2;
$tbl_learnpath_user = Database :: get_course_table(TABLE_LEARNPATH_USER);
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
//2 Initialise return value
$prereq = false;
//3 Get item data from the database
$sql_items = "SELECT * FROM $tbl_learnpath_item WHERE id='$id_in_path'";
$result_items = api_sql_query($sql_items);
$row = mysql_fetch_array($result_items);
//4 Check prerequisite's type
if ($row['prereq_type'] == 'i')
{
//4.a If prerequisite is of type 'i' (item)
//4.a.1 Get data ready for use
$id_in_path3 = $row['prereq_id'];
$prereq_limit = $row['prereq_completion_limit'];
//4.a.2 Get data from the user-item relation
if ($_user['user_id'] == '')
{
$user_id = '0';
}
else
{
$user_id = $_user['user_id'];
}
$sql_items3 = "SELECT * FROM $tbl_learnpath_user WHERE (learnpath_item_id='$id_in_path3' and user_id=$user_id)";
$result_items3 = api_sql_query($sql_items3);
$row3 = mysql_fetch_array($result_items3);
//4.a.3 Get the link that needs to be shown for the current item (not the prereq)
$stepname = display_addedresource_link_in_learnpath($row['item_type'], $row['ref'], '', $id_in_path, 'builder', 'nolink');
//this is the step we want to open
$stepname = trim($stepname); //to remove occasional line breaks and white spaces
//4.a.4 Get the prerequisite item
$sql6 = "SELECT * FROM $tbl_learnpath_item WHERE (id='$id_in_path3')";
$result6 = api_sql_query($sql6);
$row6 = mysql_fetch_array($result6);
//4.a.5 Get a link to the prerequisite item
$prereqname = display_addedresource_link_in_learnpath($row6['item_type'], $row6['ref'], '', $id_in_path3, 'builder', 'nolink'); //this is the prereq of the step we want to open
//4.a.5 Initialise limit value
$limitok = true;
//4.a.6 Get prerequisite limit
if ($prereq_limit)
{
//4.a.6.a If the completion limit exists
if ($row3['score'] < $prereq_limit)
{
//4.a.6.a.a If the completion limit hasn't been reached, then display the corresponding message
$prereq = $langPrereqToEnter.$stepname.$langPrereqTestLimit1."$prereq_limit".$langPrereqTestLimit2.$prereqname.". (".$langPrereqTestLimitNow.$row3['score'].")";
}
else
{
//4.a.6.a.b The completion limit has been reached. Prepare to return false (no prereq hanging)
$prereq = false;
}
}
else
{
//4.a.6.b If the completion limit doesn't exist
if ($row3['status'] == "completed" or $row3['status'] == 'passed')
{
//4.a.6.b.a If the prerequisite status is 'completed'
$prereq = false;
}
else
{
//4.a.6.b.b The prerequisite status is not 'completed', return corresponding message
$prereq = $langPrereqToEnter.$stepname.$langPrereqFirstNeedTo.$prereqname.'.';
}
}
}
elseif ($row['prereq_type'] == 'c')
{
//4.b If prerequisite is of type 'c' (chapter)
//4.b.1 Get data ready to use
$id_in_path2 = $row['prereq_id'];
//4.b.2 Get all items in the prerequisite chapter
$sql_items3 = "SELECT * FROM $tbl_lp_item WHERE parent_item_id='$id_in_path2'";
$result_items3 = api_sql_query($sql_items3);
$allcompleted = true;
while ($row3 = mysql_fetch_array($result_items3))
{
//4.b.3 Cycle through items in the prerequisite chapter
//4.b.3.1 Get data ready to use
$id_in_path4 = $row3['id'];
if ($_user['user_id'] == '')
{
$user_id = '0';
}
else
{
$user_id = $_user['user_id'];
}
//4.b.3.2 Get user-item relation
$sql_items4 = "SELECT * FROM $tbl_learnpath_user WHERE (learnpath_item_id='$id_in_path4' and user_id=$user_id)";
$result_items4 = api_sql_query($sql_items4);
$row4 = mysql_fetch_array($result_items4);
//4.b.3.3 If any of these elements is not 'completed', the overall completion status is false
if ($row4['status'] != "completed" and $row4['status'] != 'passed')
{
$allcompleted = false;
}
}
if ($allcompleted)
{
//4.b.4.a All items were completed, prepare to return that there is no prerequisite blocking the way
$prereq = false;
}
else
{
//4.b.4.b Something was not completed. Return corresponding message
$sql5 = "SELECT * FROM $tbl_learnpath_chapter WHERE (lp_id='$learnpath_id' and id='$id_in_path2')";
$result5 = api_sql_query($sql5);
$row5 = mysql_fetch_array($result5);
$prereqmodulename = trim($row5['chapter_name']);
$prereq = $langPrereqModuleMinimum1.$prereqmodulename.$langPrereqModuleMinimum2;
}
}
else
{
//5 If prerequisite type undefined, no prereq
$prereq = false;
}
//6 Return the message (or false if no prerequisite waiting)
return ($prereq);
}
/**
* Constructs the tree that will be used to build the learnpath structure
* @params integer Learnpath_id
* @return array Tree of the learnpath structure
* @author Yannick Warnier < yannick.warnier @ dokeos . com >
* @comment This is a temporary function, which exists while the chapters and items
* are still in separate tables in the database. This function gathers the data in a unique tree.
**/
function get_learnpath_tree($learnpath_id)
{
//error_log('New LP - In learnpath_functions::get_learnpath_tree',0);
//init elems
#global $tbl_learnpath_item, $tbl_learnpath_chapter;
/*
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
*/
$tbl_lp_item = Database::get_course_table('lp_item');
$tree = array ();
$chapters = array ();
//$chapters = array();
//$chapters_by_parent = array();
//$items = array();
//$items_by_chapter = array();
$all_items_by_chapter = array ();
$sql = "SELECT * FROM $tbl_lp_item WHERE lp_id = ".$learnpath_id." AND item_type='dokeos_chapter' ORDER BY display_order";
//error_log('New LP - learnpath_functions - get_learnpath_tree: '.$sql,0);
$res = api_sql_query($sql, __FILE__, __LINE__);
// format the $chapters_by_parent array so we have a suitable structure to work with
while ($row = Database::fetch_array($res))
{
$chapters[] = $row;
//shouldn't be necessary (check no null value)
if (empty ($row['parent_item_id']))
{
$row['parent_item_id'] = 0;
}
//$chapters_by_parent[$row['parent_item_id']][$row['previous_item_id']] = $row;
$all_items_by_chapter[$row['parent_item_id']][$row['display_order']] = $row;
$all_items_by_chapter[$row['parent_item_id']][$row['display_order']]['type'] = 'dokeos_chapter';
}
// now for every item in each chapter, get a suitable structure too
foreach ($chapters as $row)
{
// select items from this chapter
$sql = "SELECT * FROM $tbl_lp_item WHERE lp_id = $learnpath_id AND parent_item_id = ".$row['id']." ORDER BY display_order";
//error_log('New LP - learnpath_functions - get_learnpath_tree: '.$sql,0);
$res = api_sql_query($sql, __FILE__, __LINE__);
//error_log('New LP - learnpath_functions - get_learnpath_tree: Found '.Database::num_rows($res).' results',0);
while ($myrow = mysql_fetch_array($res, MYSQL_ASSOC))
{
//$items[] = $myrow;
//$items_by_chapter[$myrow['parent_item_id']][$myrow['display_order']] = $myrow;
$all_items_by_chapter[$row['id']][$myrow['display_order']] = $myrow;
$all_items_by_chapter[$row['id']][$myrow['display_order']]['type'] = 'item';
}
}
//array_multisort($all_items_by_chapter[0], SORT_ASC, SORT_NUMERIC);
foreach ($all_items_by_chapter as $key => $subrow)
{
ksort($all_items_by_chapter[$key]);
}
//all items should now be well-ordered
//error_log('New LP - In get_learnpath_tree, returning '.print_r($all_items_by_chapter,true),0);
return $all_items_by_chapter;
}
/**
* Gives a list of sequencial elements IDs for next/previous actions
* @param array The elements tree as returned by get_learnpath_tree()
* @param integer The chapter id to start from
* @param boolean Whether to include chapters or not
* @return array List of elements in the first to last order
* @author Yannick Warnier < yannick.warnier @ dokeos . com >
**/
function get_ordered_items_list($tree, $chapter = 0, $include_chapters = false)
{
$list = array ();
foreach ($tree[$chapter] as $order => $elem)
{
if ($elem['type'] == 'chapter')
{
if ($include_chapters === true)
{
$list[] = array ('id' => $elem['id'], 'type' => $elem['type']);
}
$res = get_ordered_items_list($tree, $elem['id'], $include_chapters);
foreach ($res as $elem)
{
$list[] = $elem;
}
}
elseif ($elem['type'] == 'item')
{
$list[] = array ('id' => $elem['id'], 'type' => $elem['type'], 'item_type' => $elem['item_type'], 'parent_item_id' => $elem['parent_item_id'], 'item_id' => $elem['item_id']);
}
}
return $list;
}
/**
* Displays the structure of a chapter recursively. Takes the result of get_learnpath_tree as argument
* @param array Chapter structure
* @param integer Chapter ID (start point in the tree)
* @param integer Learnpath ID
* @param integer User ID
* @param boolean Indicates if the style is wrapped (true) or extended (false)
* @param integer Level reached so far in the tree depth (enables recursive behaviour)
* @return array Number of items, Number of items completed
* @author Many changes by Yannick Warnier < yannick.warnier @ dokeos . com >
**/
function display_toc_chapter_contents($tree, $parent_item_id = 0, $learnpath_id, $uid, $wrap, $level = 0)
{
#global $tbl_learnpath_user;
$tbl_learnpath_user = Database :: get_course_table(TABLE_LEARNPATH_USER);
$num = 0;
$num_completed = 0;
foreach ($tree[$parent_item_id] as $order => $elem)
{
$bold = false;
if (!empty ($_SESSION['cur_open']) & & ($elem['id'] == $_SESSION['cur_open']))
{
$bold = true;
}
if ($elem['type'] === 'chapter')
{
if ($wrap)
{
echo str_repeat(" ", $level).shorten(strip_tags($elem['chapter_name']), (35 - 3 * $level))."< br / > \n";
}
else
{
echo "< tr > < td colspan = '3' > ".str_repeat(" ", $level).shorten($elem['chapter_name'], (35 - 3 * $level))."< / td > < / tr > \n";
}
if ($wrap)
{
if ($elem['chapter_description'] != '')
{
echo "< div class = 'description' > ".str_repeat(" ", $level)." ".shorten($elem['chapter_description'], (35 - 3 * $level))."< / div > \n";
}
}
else
{
if ($elem['chapter_description'] != '')
{
echo "< tr > < td colspan = '3' > < div class = 'description' > ".str_repeat(" ", $level)." ".shorten($elem['chapter_description'], (35 - 3 * $level))."< / div > < / td > < / tr > \n";
}
}
list ($a, $b) = display_toc_chapter_contents($tree, $elem['id'], $learnpath_id, $uid, $wrap, $level +1);
$num += $a;
$num_completed += $b;
}
elseif ($elem['type'] === 'item')
{
// If this element is an item (understand: not a directory/module)
$sql0 = "SELECT * FROM $tbl_learnpath_user WHERE (user_id='".$uid."' and learnpath_item_id='".$elem['id']."' and lp_id='".$learnpath_id."')";
$result0 = api_sql_query($sql0, __FILE__, __LINE__);
$row0 = mysql_fetch_array($result0);
$completed = '';
if (($row0['status'] == 'completed') or ($row0['status'] == 'passed'))
{
$completed = 'completed';
$num_completed ++;
}
if ($wrap)
{
echo str_repeat(" ", $level)."< a name = '{$elem[' id ' ] } ' / > \n";
}
else
{
echo "< tr > < td > ".str_repeat(" ", $level-1)."< a name = '{$elem[' id ' ] } ' / > \n";
}
if ($wrap)
{
$icon = 'wrap';
}
if ($bold)
{
echo "< b > ";
}
display_addedresource_link_in_learnpath($elem['item_type'], $elem['ref'], $completed, $elem['id'], 'player', $icon);
if ($bold)
{
echo "< / b > ";
}
if ($wrap)
{
echo "< br / > \n";
}
else
{
echo "< / td > < / tr > \n";
}
$num ++;
}
}
return array ($num, $num_completed);
}
/**
* Returns a string to display in the tracking frame within the contents.php page (for example)
* @param integer Learnpath id
* @param integer Current user id
* @param integer Starting chapter id
* @param array Tree of elements as returned by get_learnpath_tree()
* @param integer Level of recursivity we have reached
* @param integer Counter of elements already displayed
* @author Yannick Warnier < yannick.warnier @ dokeos . com >
* @note : forced display because of display_addedresource_link_in_learnpath behaviour (outputing a string would be better)
**/
function get_tracking_table($learnpath_id, $user_id, $parent_item_id = 0, $tree = false, $level = 0, $counter = 0)
{
$tbl_learnpath_chapter = Database :: get_course_learnpath_chapter_table();
$tbl_learnpath_item = Database :: get_course_learnpath_item_table();
$tbl_learnpath_user = Database :: get_course_learnpath_user_table();
//$mytable = '';
$include_chapters = true;
if (!is_array($tree))
{
//get a tree of the current learnpath elements
$tree = get_learnpath_tree($learnpath_id);
}
foreach ($tree[$parent_item_id] as $order => $elem)
{
if (($counter % 2) == 0)
{
$oddclass = 'row_odd';
}
else
{
$oddclass = 'row_even';
}
if ($elem['type'] == 'chapter')
{
if ($include_chapters === true)
{
//$mytable .= "< tr class = '$oddclass' > < td colspan = '3' > ".str_repeat(' ',$level*2+2).$elem['chapter_name']."< / td > < / tr > \n";
echo "< tr class = '$oddclass' > < td colspan = '3' > ".str_repeat(' ', $level * 2 + 2).$elem['chapter_name']."< / td > < / tr > \n";
}
$counter ++;
//$mytable .= get_tracking_table($learnpath_id, $user_id, $elem['id'], $tree, $level + 1, $counter );
get_tracking_table($learnpath_id, $user_id, $elem['id'], $tree, $level +1, $counter);
}
elseif ($elem['type'] == 'item')
{
$sql = "SELECT * FROM $tbl_learnpath_user "."WHERE user_id = $user_id "."AND lp_id = $learnpath_id "."AND learnpath_item_id = ".$elem['id'];
$res = api_sql_query($sql, __FILE__, __LINE__);
$myrow = mysql_fetch_array($res);
if (($myrow['status'] == 'completed') || ($myrow['status'] == 'passed'))
{
$color = 'blue';
$statusmessage = get_lang('Complete');
}
else
{
$color = 'black';
$statusmessage = get_lang('Incomplete');
}
$link = get_addedresource_link_in_learnpath($elem['item_type'], $elem['id'], $elem['item_id']);
//$link = display_addedresource_link_in_learnpath($elem['item_type'], $elem['id'], $row['status'], $elem['item_id'], 'player', 'none');
//$mytable .= "< tr class = '$oddclass' > "
echo "< tr class = '$oddclass' > "."< td class = 'mystatus' > ".str_repeat(" ", $level * 2 + 2);
//."< a href = '$link?SQMSESSID=36812c2dea7d8d6e708d5e6a2f09b0b9' target = 'toc' > hop< / a > "
display_addedresource_link_in_learnpath($elem['item_type'], $elem['ref'], $myrow['status'], $elem['id'], 'player', 'wrap');
//we should also add the total score here
echo "< td > "."< font color = '$color' > < div class = 'mystatus' > ".$statusmessage."< / div > < / font > "."< / td > "."< td > "."< div class = 'mystatus' align = 'center' > ". ($myrow['score'] == 0 ? '-' : $myrow['score'])."< / div > "."< / td > "."< / tr > \n";
$counter ++;
}
}
//return $mytable;
return true;
}
/**
* This function returns false if there is at least one item in the path
* @param Learnpath ID
* @return boolean True if nothing was found, false otherwise
*/
function is_empty($id)
{
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
$sql = "SELECT * FROM $tbl_learnpath_chapter WHERE lp_id=$id ORDER BY display_order ASC";
$result = api_sql_query($sql, __FILE__, __LINE__);
$num_modules = mysql_num_rows($result);
$empty = true;
if ($num_modules != 0)
{
while ($row = mysql_fetch_array($result))
{
$num_items = 0;
$parent_item_id = $row['id'];
$sql2 = "SELECT * FROM $tbl_learnpath_item WHERE (parent_item_id=$parent_item_id) ORDER BY display_order ASC";
$result2 = api_sql_query($sql2, __FILE__, __LINE__);
$num_items = mysql_num_rows($result2);
if ($num_items > 0)
{
$empty = false;
}
}
}
return ($empty);
}
/**
* This function writes $content to $filename
* @param string Destination filename
* @param string Learnpath name
* @param integer Learnpath ID
* @param string Content to write
* @return void
*/
function exporttofile($filename, $LPname, $LPid, $content)
{
global $circle1_files; //this keeps all the files which are exported [0]:filename [1]:LP name
//the $circle1_files variable is going to be used to a deep extent in the imsmanifest.xml
global $expdir;
if (!$handle = fopen($expdir.'/'.$filename, 'w'))
{
echo "Cannot open file ($filename)";
}
if (fwrite($handle, $content) === FALSE)
{
echo "Cannot write to file ($filename)";
exit;
}
fclose($handle);
$circle1_files[0][] = $filename;
$circle1_files[1][] = $LPname;
$circle1_files[2][] = $LPid;
}
/**
* This function exports the given Dokeos test
* @param integer Test ID
* @return string The test itself as an HTML string
*/
function export_exercise($item_id)
{
global $expdir, $_course, $_configuration, $_SESSION, $_SERVER, $language_interface, $langExerciseNotFound, $langQuestion, $langOk;
$exerciseId = $item_id;
require_once ('../exercice/exercise.class.php');
require_once ('../exercice/question.class.php');
require_once ('../exercice/answer.class.php');
require_once ('../exercice/exercise.lib.php');
// answer types
define('UNIQUE_ANSWER', 1);
define('MULTIPLE_ANSWER', 2);
define('FILL_IN_BLANKS', 3);
define('MATCHING', 4);
define('FREE_ANSWER', 5);
include_once (api_get_path(LIBRARY_PATH).'/text.lib.php');
$TBL_EXERCISES = Database :: get_course_table(TABLE_QUIZ_TEST);
/*******************************/
/* Clears the exercise session */
/*******************************/
if (isset ($_SESSION['objExercise']))
{
api_session_unregister('objExercise');
unset ($objExercise);
}
if (isset ($_SESSION['objQuestion']))
{
api_session_unregister('objQuestion');
unset ($objQuestion);
}
if (isset ($_SESSION['objAnswer']))
{
api_session_unregister('objAnswer');
unset ($objAnswer);
}
if (isset ($_SESSION['questionList']))
{
api_session_unregister('questionList');
unset ($questionList);
}
if (isset ($_SESSION['exerciseResult']))
{
api_session_unregister('exerciseResult');
unset ($exerciseResult);
}
// if the object is not in the session
if (!isset ($_SESSION['objExercise']))
{
// construction of Exercise
$objExercise = new Exercise();
$sql = "SELECT title,description,sound,type,random,active FROM $TBL_EXERCISES WHERE id='$exerciseId'";
// if the specified exercise doesn't exist or is disabled
if (!$objExercise->read($exerciseId) || (!$objExercise->selectStatus() & & !$is_allowedToEdit & & ($origin != 'learnpath')))
{
die($langExerciseNotFound);
}
// saves the object into the session
api_session_register('objExercise');
}
$exerciseTitle = $objExercise->selectTitle();
$exerciseDescription = $objExercise->selectDescription();
$exerciseSound = $objExercise->selectSound();
$randomQuestions = $objExercise->isRandom();
$exerciseType = $objExercise->selectType();
if (!isset ($_SESSION['questionList']))
{
// selects the list of question ID
$questionList = $randomQuestions ? $objExercise->selectRandomList() : $objExercise->selectQuestionList();
// saves the question list into the session
api_session_register('questionList');
}
$nbrQuestions = sizeof($questionList);
// if questionNum comes from POST and not from GET
if (!$questionNum || $_POST['questionNum'])
{
// only used for sequential exercises (see $exerciseType)
if (!$questionNum)
{
$questionNum = 1;
}
else
{
$questionNum ++;
}
}
$exerciseTitle = api_parse_tex($exerciseTitle);
$test .= "< h3 > ".$exerciseTitle."< / h3 > ";
if (!empty ($exerciseSound))
{
$test .= "< a href = \"../document/download.php?doc_url=%2Faudio%2F".$exerciseSound."\"&SQMSESSID=36812c2dea7d8d6e708d5e6a2f09b0b9 target = \"_blank\" > < img src = \"../img/sound.gif\" border = \"0\" align = \"absmiddle\" alt = ".get_lang(" Sound " ) . " \ " / > < / a > ";
}
$exerciseDescription = api_parse_tex($exerciseDescription);
// --------- writing the .js file with to check the correct answers begin -----------------------
$scriptfilename = "Exercice".$item_id.".js";
$s = "< script type = \"text/javascript\" src = '../js/".$scriptfilename."' > < / script > ";
$test .= $s;
$content = "function evaluate() {
alert('Test evaluated.');
}
";
if (!$handle = fopen($expdir.'/js/'.$scriptfilename, 'w'))
{
echo "Cannot open file ($scriptfilename)";
}
if (fwrite($handle, $content) === FALSE)
{
echo "Cannot write to file ($filename)";
exit;
}
fclose($handle);
// --------- writing the .js file with to check the correct answers end -----------------------
$s = "
< p > $exerciseDescription< / p >
< table width = '100%' border = '0' cellpadding = '1' cellspacing = '0' >
< form method = 'post' action = '' > < input type = \"hidden\" name = \"SQMSESSID\" value = \"36812c2dea7d8d6e708d5e6a2f09b0b9\" / >
< input type = 'hidden' name = 'formSent' value = '1' / >
< input type = 'hidden' name = 'exerciseType' value = '".$exerciseType."' / >
< input type = 'hidden' name = 'questionNum' value = '".$questionNum."' / >
< input type = 'hidden' name = 'nbrQuestions' value = '".$nbrQuestions."' / >
< tr >
< td >
< table width = '100%' cellpadding = '4' cellspacing = '2' border = '0' > ";
$exerciseType = 1; //so to list all questions in one page
$test .= $s;
$i = 0;
foreach ($questionList as $questionId)
{
$i ++;
// for sequential exercises
if ($exerciseType == 2)
{
// if it is not the right question, goes to the next loop iteration
if ($questionNum != $i)
{
continue;
}
else
{
// if the user has already answered this question
if (isset ($exerciseResult[$questionId]))
{
// construction of the Question object
$objQuestionTmp = new Question();
// reads question informations
$objQuestionTmp->read($questionId);
$questionName = $objQuestionTmp->selectTitle();
// destruction of the Question object
unset ($objQuestionTmp);
$test .= '< tr > < td > '.get_lang("AlreadyAnswered").' " '.$questionName.'" < / td > < / tr > ';
break;
}
}
}
$s = "< tr bgcolor = '#e6e6e6' > < td valign = 'top' colspan = '2' > ".$langQuestion." ";
$s .= $i;
if ($exerciseType == 2)
$s .= ' / '.$nbrQuestions;
$s .= '< / td > < / tr > ';
$test .= $s;
//Call the showQuestion() function from exercise.lib.php. This basically displays the question in a table
$test .= showQuestion($questionId, false, 'export');
} // end foreach()
$s = "< / table > < / td > < / tr > < tr > < td > < br / > < input type = 'button' value = '".$langOk."' onClick = \"javascript:evaluate();alert('Evaluated.');\" > ";
$s .= "< / td > < / tr > < / form > < / table > ";
$s .= "< script type = 'text/javascript' > loadPage ( ) ; < / script > ";
$b = 2;
$test .= $s;
return ($test);
}
/**
* This function exports the given item
* @param integer Id from learnpath_items table
* @param integer Item id
* @param string Itm type
* @param boolean Shall the SCORM communications features be added? (true). Default: false.
* @return void (outputs a zip file)
* @todo Try using the SCORM communications addition (adding a button and several javascript calls to the SCORM API) elsewhere than just in the export feature, so it doesn't look like an incoherent feature
*/
function exportitem($id, $item_id, $item_type, $add_scorm_communications = false)
{
global $circle1_files, $expdir, $_course, $_SESSION, $GLOBALS;
global $timeNoSecFormat, $dateFormatLong, $language_interface, $langPubl, $langDone, $langThisCourseDescriptionIsEmpty, $lang_course_description, $lang_introduction_text, $_cid, $langHotPotatoesFinished, $lang_author, $lang_date, $lang_groups, $lang_users, $lang_ass, $lang_dropbox, $test, $langQuestion;
// $_course=$_SESSION['course'];
require_once (api_get_path(LIBRARY_PATH)."database.lib.php");
//$tbl_learnpath_item = Database::get_course_learnpath_item_table();
include_once ('exercise.class.php');
include_once ('question.class.php');
include_once ('answer.class.php');
include_once ('exercise.lib.php');
include_once ('../lang/english/announcements.inc.php'); //this line is here only for $langPubl in announcements
include_once ("../lang/".$language_interface."/announcements.inc.php"); //this line is here only for $langPubl in announcements
include_once ('../lang/english/course_description.inc.php'); //this line is here only for $langThisCourseDescriptionIsEmpty
include_once ("../lang/".$language_interface."/course_description.inc.php"); // -||-
include_once ('../lang/english/resourcelinker.inc.php');
include_once ("../lang/".$language_interface."/resourcelinker.inc.php");
include_once ('../lang/english/learnpath.inc.php');
include_once ("../lang/".$language_interface."/learnpath.inc.php");
include_once ('../lang/english/exercice.inc.php');
include_once ("../lang/".$language_interface."/exercice.inc.php");
include_once (api_get_path(LIBRARY_PATH).'text.lib.php');
include_once ("../resourcelinker/resourcelinker.inc.php");
include_once (api_get_path(LIBRARY_PATH)."events.lib.inc.php");
$LPname = display_addedresource_link_in_learnpath($item_type, $item_id, '', $id, 'builder', 'nolink');
$expcontent = "<!--
This is an exported file from Dokeos Learning Path belonging to a Scorm compliant content package.
Do not modify or replace individually.
Export module author : Denes Nagy < darkden @ evk . bke . hu >
-->
";
//files needed for communicating with the scos
$scocomfiles = "< script type = 'text/javascript' src = '../js/APIWrapper.js' > < / script > "."< script type = 'text/javascript' src = '../js/SCOFunctions.js' > < / script > ";
$expcontent .= '< html > < head > < link rel = "stylesheet" href = "../css/default.css" type = "text/css" media = "screen,projection" / > '.$scocomfiles.'< / head > < body > ';
$donebutton .= "< script type = 'text/javascript' >
/* < ![CDATA[ */
loadPage();
var studentName = '!';
var lmsStudentName = doLMSGetValue( 'cmi.core.student_name' );
if ( lmsStudentName != '' )
{
studentName = ' ' + lmsStudentName + '!';
}
/* ]]> */
< / script >
< br / > < br / >
< form > < input type = \"hidden\" name = \"SQMSESSID\" value = \"36812c2dea7d8d6e708d5e6a2f09b0b9\" / >
< table cols = '3' width = '100%' align = 'center' >
< tr >
< td align = 'middle' > < input type = 'button' value = ' ".$langDone." ' onclick = \"doQuit('completed')\" id = 'button2' name = 'button2' > < / td >
< / tr >
< / table >
< / form > ";
/**
* switch between the different element types, namely:
* - Agenda
* - Ad_Valvas
* - Course_description
* - Document
* - Introduction_text
* - HotPotatoes
* - Exercise
* - Post
* - Forum ]
* - Thread ]
* - Dropbox ]
* - Assignments ] Theses elements are all replaced by a simple message in the exported document
* - Groups ]
* - Users ]
* - Link _self
* - Link _blank
*/
switch ($item_type)
{
//------------------------AGENDA BEGIN-------------------
case "Agenda" :
//1 Get agenda event data from the database table
$TABLEAGENDA = Database :: get_course_table(TABLE_AGENDA);
$sql = "SELECT * FROM ".$TABLEAGENDA." where (id=$item_id)";
$result = api_sql_query($sql, __FILE__, __LINE__);
//2 Prepare table output
$expcontent .= "< table class = \"data_table\" > ";
$barreMois = "";
//3 For each event corresponding to this agenda, do the following:
while ($myrow = mysql_fetch_array($result))
{
//3.1 Make the blue month bar appear only once.
if ($barreMois != date("m", strtotime($myrow["start_date"])))
{
//3.1.1 Update the check value for the month bar
$barreMois = date("m", strtotime($myrow["start_date"]));
//3.1.2 Display the month bar
$expcontent .= "< tr > < td id = \"title\" colspan = \"2\" class = \"month\" valign = \"top\" > ".ucfirst(format_locale_date("%B %Y", strtotime($myrow["start_date"])))."< / td > < / tr > ";
}
//3.2 Display the agenda items (of this month): the date, hour and title
$db_date = (int) date(d, strtotime($myrow["start_date"]));
if ($_GET["day"] < > $db_date)
{ //3.2.1.a If the day given in the URL (might not be set) is different from this element's day, use style 'data'
$expcontent .= "< tr > < td class = \"data\" colspan = '2' > ";
}
else
{ //3.2.1.b Else (same day) use style 'datanow'
$expcontent .= "< tr > < td class = \"datanow\" colspan = '2' > ";
}
//3.2.2 Mark an anchor for this date
$expcontent .= "< a name = \"".(int) date ( d , strtotime ( $ myrow [ " start_date " ] ) ) . " \ " > < / a > "; // anchoring
//3.2.3 Write the date and time of this event to the export string
$expcontent .= ucfirst(format_locale_date($dateFormatLong, strtotime($myrow["start_date"])))." ";
$expcontent .= ucfirst(strftime($timeNoSecFormat, strtotime($myrow["start_time"])))."";
//3.2.4 If a duration is set, write it, otherwise ignore
if ($myrow["duration"] == "")
{
$expcontent .= "< br / > ";
}
else
{
$expcontent .= " / ".$lang_lasting." ".$myrow["duration"]."< br / > ";
}
//3.2.5 Write the title
$expcontent .= $myrow["title"];
$expcontent .= "< / td > < / tr > ";
//3.2.6 Prepare the content of the agenda item
$content = $myrow["content"];
//3.2.7 Make clickable???
$content = make_clickable($content);
$content = api_parse_tex($content);
//3.2.8 Write the prepared content to the export string
$expcontent .= "< tr > < td class = \"text\" colspan = '2' > ";
$expcontent .= $content;
$expcontent .= "< / td > < / tr > ";
// displaying the agenda item of this month: the added resources
// this part is not included into LP export
/*if (check_added_resources("Agenda", $myrow["id"]))
{
$content.= "< tr > < td colspan = '2' > ";
$content.= "< i > ".get_lang('AddedResources')."< / i > < br / > ";
display_added_resources("Agenda", $myrow["id"]);
$content.= "< / td > < / tr > ";
}*/
}
//4 Finish the export string
$expcontent .= "< tr > < / table > ";
break;
//------------------------ANNOUNCEMENT BEGIN-------------------
case "Ad_Valvas" :
//1 Get the announcement data from the database
$tbl_announcement = Database::get_course_table(TABLE_ANNOUNCEMENT);
$sql = "SELECT * FROM $tbl_announcement where id='$item_id'";
$result = api_sql_query($sql, __FILE__, __LINE__);
//2 Initialise export string
$expcontent .= "< table class = \"data_table\" > ";
//3 For each announcement matching the query
while ($myrow = mysql_fetch_array($result))
{
//3.1 Get the __ field data
$content = $myrow[1];
//$content = nl2br($content);
//3.2 Prepare the data for export
$content = make_clickable($content);
$content = api_parse_tex($content);
//3.3 Get a UNIX(?< -mktime ) Timestamp of the end_date for this announcement
$last_post_datetime = $myrow['end_date']; // post time format datetime de mysql
list ($last_post_date, $last_post_time) = split(" ", $last_post_datetime);
list ($year, $month, $day) = explode("-", $last_post_date);
list ($hour, $min) = explode(":", $last_post_time);
$announceDate = mktime($hour, $min, 0, $month, $day, $year);
//3.4 Compare the end date to the last login date of the user (mark it in red if he has not already read it)
if ($announceDate > $_SESSION['user_last_login_datetime'])
{
$colorBecauseNew = " color=\"red\" ";
}
else
{
$colorBecauseNew = " ";
}
//3.5 Write this content to the export string (formatted HTML array)
$expcontent .= "< tr > \n"."< td class = \"cell_header\" > \n"."< font " . $ colorBecauseNew . " > ".$langPubl." : ".ucfirst(format_locale_date($dateFormatLong, strtotime($last_post_date)))."< / font > \n"."< / td > \n"."< / tr > \n"."< tr > \n"."< td > \n".$content."< / td > \n"."< / tr > \n";
} // while loop
//4 Finish the export string
$expcontent .= "< / table > ";
break;
//------------------------Course_description BEGIN-------------------
case "Course_description" :
//1 Get course description data from database
$tbl_course_description = Database :: get_course_table(TABLE_COURSE_DESCRIPTION);
$result = api_sql_query("SELECT id, title, content FROM ".$tbl_course_description." ORDER BY id", __FILE__, __LINE__);
//2 Check this element
if (mysql_num_rows($result))
{
//2.a This course has one (or more) description in the database
$expcontent .= "< hr noshade = \"noshade\" size = \"1\" / > ";
//2.a.1 For each description available for this course
while ($row = mysql_fetch_array($result))
{
//2.a.1.1 Write title to export string
$expcontent .= "< h4 > ".$row['title']."< / h4 > ";
//2.a.1.2 Prepare content
$content = make_clickable(nl2br($row['content']));
$content = api_parse_tex($content);
//2.a.1.3 Write content to the export string
$expcontent .= $content;
}
}
else
{
//2.b This course has no description available
$expcontent .= "< br / > < h4 > $langThisCourseDescriptionIsEmpty< / h4 > ";
}
break;
//------------------------DOCUMENT BEGIN-------------------
case "Document" :
//1 Get the document data from the database
$tbl_document = Database::get_course_table(TABLE_DOCUMENT);
$sql_query = "SELECT * FROM $tbl_document WHERE id=$item_id";
$sql_result = api_sql_query($sql_query, __FILE__, __LINE__);
$myrow = mysql_fetch_array($sql_result);
//2 Get the origin path of the document to treat it internally
$orig = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document'.$myrow["path"];
//3 Make some kind of strange transformation to get the destination filepath ???
$pathname = explode("/", $myrow["path"]);
$last = count($pathname) - 1;
$filename = 'data/'.$filename.$pathname[$last];
$copyneeded = true;
//htm files do not need to be copied as the ok button is inserted into them,
//so don't copy directly
$extension = explode(".", $pathname[$last]);
//This old condition was WRONG for names like design.html.old. Instead, we now get the extension
// by using preg_match to match case-insensitive (probably faster than 4 conditions)
//if (($extension[1]=='htm') or ($extension[1]=='html') or ($extension[1]=='HTM') or ($extension[1]=='HTML')) {
//4 Check the file extension
if (preg_match('/.*(\.htm(l)?)$/i', $pathname[$last]))
{
//4.a If this file ends with ".htm(l)", we consider it's an HTML file
//src tag check begin
//we now check if there is any src attribute in htm(l) files, if yes, we have to also export
//the target file (swf, mp3, video,...) of that src tag
//In case of absolute links (http://) this is not neccessary, but makes no error.
//however still missing : relative links case with subdirs -> the necessary dirs are not created in the exported package
//4.a.1 Get the file contents into $file
$file = file_get_contents($orig);
//4.a.2 Get all the src links in this file
//preg_match_all("|((?i)src=\".*\" )|U",$file,$match);
$match = GetSRCTags($orig);
//4.a.3 For each src tag found, do the following:
for ($i = 0; $i < count ( $ match ) ; $ i + + )
{
//4.a.3.1 Get the tag (split from the key)
list ($key, $srctag) = each($match);
$src = $srctag;
//4.a.3.2 Check the link kind (web or absolute/relative)
if (stristr($src, "http") === false)
{
//4.a.3.2.a Do something only if relative (otherwise the user will be able to see it too anyway)
//4.a.3.2.a.1 Get a proper URL and remove all './'
$src = urldecode($src); //mp3
//$src=str_replace('./','',$src);
$src = preg_replace('/^\.\//', '', $src);
//4.a.3.2.a.2 Remove the player link from the URL (only use the mp3 file)
$src = str_replace('mp3player.swf?son=', '', $src); //mp3
//4.a.3.2.a.3 Remove funny link parts
$src = str_replace('?0', '', $src); //mp3
//the previous lines are used when creating docs with Dokeos Document tool's htmlarea
//rows marked by 'mp3' are needed because the mp3 plugin inserts the swf-mp3 links in a very strange way
//and we can decode them with those 3 lines, hoping this will not cause errors in case of other htmls,
//created by any other software
//4.a.3.2.a.4 Prepare source and destination paths
$source = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document'.dirname($myrow['path']).'/'.$src;
$dest = $expdir.'/data/'.$src;
//CopyNCreate($source,$dest);
rcopy($source, $dest);
} //else...?
}
//src tag check end
//sco communication insertion begin
//4.a.4 If we want to add SCORM actions and a "Done" button, do the following:
if ($add_scorm_communications === true)
{
if ($bodyclose = strpos($file, '< / body > '))
{
$file = substr_replace($file, $scocomfiles.$donebutton, $bodyclose, 7);
}
elseif ($htmlclose = strpos($file, '< / html > '))
{
$file = substr_replace($file, $scocomfiles.$donebutton, $htmlclose, 7);
$file .= '< / html > ';
}
else
{
$file .= $scocomfiles.$donebutton;
}
} //sco communication insertion end
//4.a.5 Replace the file's name by adding the element's ID before htm
// This will not work with uppercase HTML though. Maybe use the preg_replace syntax proposed...
$filename = str_replace('.htm', $id.'.htm', $filename);
//$filename=preg_replace('/.*(\.htm(l)?)$/i',$id.$1,$filename);
//4.a.6 Export these contents to a file and set the circle1_files array for later reuse
exporttofile($filename, $LPname, $id, $file);
//The file has been copied, so ask not to copy it again
$copyneeded = false;
} //if (htm(l) files) end
//5 If we still need to copy the file (e.g. it was not an HTML file), then copy and set circle1_files for later reuse
if ($copyneeded)
{
copy($orig, $expdir.'/'.$filename);
$circle1_files[0][] = $filename;
$circle1_files[1][] = $LPname;
$circle1_files[2][] = $id;
}
//echo $orig;
return;
//------------------------Introduction_text BEGIN-------------------
case "Introduction_text" :
//1 Get the introduction text data from the database
$TBL_INTRO = Database :: get_course_tool_intro_table();
$result = api_sql_query("SELECT * FROM ".$TBL_INTRO." WHERE id=1");
$myrow = mysql_fetch_array($result);
$intro = $myrow["intro_text"];
//2 Write introduction text to the export string
$expcontent .= "< br / > ".$intro;
break;
//------------------------HotPotatoes BEGIN-------------------
case "HotPotatoes" :
//1 Get HotPotatoes data from the document table
$tbl_document = Database::get_course_table(TABLE_DOCUMENT);
$result = api_sql_query("SELECT * FROM $tbl_document WHERE id=$item_id", __FILE__, __LINE__);
$myrow = mysql_fetch_array($result);
//2 Get the document path
$testfile = api_get_path(SYS_COURSE_PATH).$_course['path']."/document".urldecode($myrow['path']);
//3 Get the document contents into a string
$content = file_get_contents($testfile);
//4 Get the document filename (just the file, no path) - would probably be better to use PHP native function
$pathname = explode("/", $myrow["path"]);
$last = count($pathname) - 1;
$filename = 'data/'.$filename.$pathname[$last];
//4beta - get all linked files and copy them (procedure copied from documents type)
//Get all the src links in this file
$match = GetSRCTags($testfile);
//For each src tag found, do the following:
foreach ($match as $src)
{
//Check the link kind (web or absolute/relative)
if (stristr($src, "http") === false)
{
//Do something only if relative (otherwise the user will be able to see it too anyway)
//Get a proper URL and remove all './'
$src = urldecode($src); //mp3
$src = str_replace('./', '', $src);
//Remove the player link from the URL (only use the mp3 file)
$src = str_replace('mp3player.swf?son=', '', $src); //mp3
//Remove funny link parts
$src = str_replace('?0', '', $src); //mp3
//The previous lines are used when creating docs with Dokeos Document tool's htmlarea
//rows marked by 'mp3' are needed because the mp3 plugin inserts the swf-mp3 links in a very strange way
//and we can decode them with those 3 lines, hoping this will not cause errors in case of other htmls,
//created by any other software
//Prepare source and destination paths
$source = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document'.dirname($myrow['path']).'/'.$src;
$dest = $expdir.'/data/'.$src;
//CopyNCreate($source,$dest);
rcopy($source, $dest);
} //else...?
}
//5 Prepare the special "close window" for this test
$closewindow = "< html > < head > < link rel = 'stylesheet' type = 'text/css' href = '../css/default.css' > < / head > < body > "."< br / > < div class = 'message' > $langHotPotatoesFinished< / div > < / body > < / html > ";
//Finish is the function of HP to save scores, we insert our scorm function calls to its beginning
//'Score' is the variable that tracks the score in HP tests
//6
$mit = "function Finish(){";
$js_content = "var SaveScoreVariable = 0; // This variable is included by Dokeos LP export\n"."function mySaveScore() // This function is included by Dokeos LP export\n"."{\n"." if (SaveScoreVariable==0)\n"." {\n"." SaveScoreVariable = 1;\n".
//the following function are implemented in SCOFunctions.js
" exitPageStatus = true;\n"." computeTime();\n"." doLMSSetValue( 'cmi.core.score.raw', Score );\n"." doLMSSetValue( 'cmi.core.lesson_status', 'completed' );\n"." doLMSCommit();\n"." doLMSFinish();\n".
// " document.write('".$closewindow."');\n".
//if you insert the previous row, the test does not appear correctly !!!!
" }\n"."}\n"."function Finish(){\n"." mySaveScore();";
$start = "< script type = 'text/javascript' > loadPage ( ) ; < / script > ";
//7 Replace the current MIT function call by our set of functions. In clear, transform HP to SCORM
$content = str_replace($mit, $js_content, $content);
//8 Finally, add the API loading calls (although that might have been done first)
$content = str_replace("< / script > ", "< / script > ".$scocomfiles.$start, $content);
//9 Change the filename to add the database ID and export to a new file,
// setting the circle1_files array for later reuse
$filename = str_replace('.htm', $id.'.htm', $filename);
exporttofile($filename, $LPname, $id, $content);
return;
//------------------------Dokeos test BEGIN-------------------
case "Exercise" :
//1 Use the export_exercise() function to do the job of constructing the question's HTML table
$expcontent .= export_exercise($item_id);
break;
//------------------------POST BEGIN---------------------------------------
case "Post" :
//1 Get the forum post data from the database
$tbl_posts =Database::get_course_table(TABLE_FORUM_POST);
$tbl_posts_text =Database::get_course_table(TOOL_FORUM_POST_TEXT_TABLE);
$result = api_sql_query("SELECT * FROM $tbl_posts where post_id=$item_id", __FILE__, __LINE__);
$myrow = mysql_fetch_array($result);
// grabbing the title of the post
$sql_titel = "SELECT * FROM $tbl_posts_text WHERE post_id=".$myrow["post_id"];
$result_titel = api_sql_query($sql_titel, __FILE__, __LINE__);
$myrow_titel = mysql_fetch_array($result_titel);
$posternom = $myrow['nom'];
$posterprenom = $myrow['prenom'];
$posttime = $myrow['post_time'];
$posttext = $myrow_titel['post_text'];
$posttitle = $myrow_titel['post_title'];
$posttext = str_replace('"', "'", $posttext);
//2 Export contents as an HTML table
$expcontent .= "< table border = '0' cellpadding = '3' cellspacing = '1' width = '100%' >
< tr >
< td colspan = '2' bgcolor = '#e6e6e6' > < b > $posttitle< / b > < br / > $posttext< / td >
< / tr >
< tr >
< td colspan = '2' > < / td >
< / tr >
< tr >
< td bgcolor = '#cccccc' align = 'left' > $lang_author : $posterprenom $posternom< / td >
< td align = 'right' bgcolor = '#cccccc' > $lang_date : $posttime< / td >
< / tr >
< tr > < td colspan = '2' height = '10' > < / td > < / tr >
< / table > ";
break;
//------------------------NOT IMPLEMENTED ITEMS BEGIN-------------------
case "Forum" :
case "Thread" :
case "Dropbox" :
case "Assignments" :
case "Groups" :
case "Users" :
//1 Instead of building something, put an info message
$langItemMissing1 = "There was a ";
$langItemMissing2 = "page (step) here in the original Dokeos Learning Path.";
$expcontent .= "< div class = 'message' > $langItemMissing1 $item_type $langItemMissing2< / div > ";
break;
//------------------------Link BEGIN-------------------------------------
case "Link _self" :
case "Link _blank" :
//1 Get the link data from the database
$TABLETOOLLINK = Database :: get_course_link_table();
$result = api_sql_query("SELECT * FROM $TABLETOOLLINK WHERE id=$item_id", __FILE__, __LINE__);
$myrow = mysql_fetch_array($result);
$thelink = $myrow["url"];
//2 Check the link type (open in blank page or in current page)
if ($item_type == "Link _blank")
{
$target = "_blank";
}
//3 Write the link to the export string
$expcontent .= "< a href = '$thelink?SQMSESSID=36812c2dea7d8d6e708d5e6a2f09b0b9' target = '".$target."' > $LPname< / a > ";
//4 Change the element type for later changes (this is lost, however, so useless here)
$item_type = "Link"; //to put this to the filename
//$LPname="< a href = '$thelink?SQMSESSID=36812c2dea7d8d6e708d5e6a2f09b0b9' target = ".$target." > $LPname< / a > ";
//i am still not sure about Link export : to export them as files or they can appear in the TOC at once ?
//to enable the second possibility, unrem the row $LPname=...
break;
}
//now we add the Done button and the initialize function : loadpage()
//not in the case of Documents, HotP
if ($item_type != 'Exercise' and ($add_scorm_communications === true))
{
$expcontent .= $donebutton;
}
//End the export string with valid HTML tags
$expcontent .= "< / body > < / html > ";
//Prepare new file name
$filename = $item_type.$id.".htm";
//Write the export content to the new file
exporttofile('data/'.$filename, $LPname, $id, $expcontent);
}
/**
* This function exports the given item's description into a separate file
* @param integer Item id
* @param string Item type
* @param string Description
* @return void
*/
function exportdescription($id, $item_type, $description)
{
global $expdir;
$filename = $item_type.$id.".desc";
$expcontent = $description;
exporttofile($expdir.$filename, 'description_of_'.$item_type.$id, 'description_of_item_'.$id, $expcontent);
}
/**
* This function deletes an entire directory
* @param string The directory path
* @return boolean True on success, false on failure
*/
function deldir($dir)
{
$dh = opendir($dir);
while ($file = readdir($dh))
{
if ($file != "." & & $file != "..")
{
$fullpath = $dir."/".$file;
if (!is_dir($fullpath))
{
unlink($fullpath);
}
else
{
deldir($fullpath);
}
}
}
closedir($dh);
if (rmdir($dir))
{
return true;
}
else
{
return false;
}
}
/**
* This functions exports the given path. This is the opener function, which is called first
* @param integer The path id
* @return resource A zip file, containing a hopefully Scorm compliant course made from the LP. This might happen when we don't actually exit the function first :-)
*/
function exportpath($learnpath_id)
{
//1 Initialise variables
global $_course, $circle1_files, $LPnamesafe, $LPname, $expdir;
//$tbl_learnpath_main, $tbl_learnpath_chapter, $tbl_learnpath_item,
$tbl_learnpath_main = Database :: get_course_table(TABLE_LEARNPATH_MAIN);
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
//where applicable, add a scorm "Done" button at the end of all contents
$add_scorm_button = true;
//2 Get the name of the LP
include_once (api_get_path(LIBRARY_PATH)."fileUpload.lib.php");
$sql = "SELECT * FROM $tbl_learnpath_main WHERE (lp_id=$learnpath_id)";
$result = api_sql_query($sql, __FILE__, __LINE__);
$row = mysql_fetch_array($result);
$LPname = $row['learnpath_name'];
$LPnamesafe = replace_dangerous_char($LPname, 'strict');
//3 Get a temporary dir for creating the zip file
$expdir = api_get_path('SYS_COURSE_PATH').$_course['path']."/temp/".$LPnamesafe;
$fromdir = '../scorm/export/'; //this dir contains some standard files
deldir($expdir); //make sure the temp dir is cleared
mkdir($expdir);
mkdir($expdir.'/css');
mkdir($expdir.'/data');
mkdir($expdir.'/js');
mkdir($expdir.'/data/images');
mkdir($expdir.'/data/audio');
mkdir($expdir.'/data/videos');
$circle1 = array (//this array contains the types of elements we want to export
'Chapter', 'Agenda', 'Ad_Valvas', 'Course_description', 'Document', 'Introduction_text', 'Link _self', 'Link _blank', 'Forum', 'Thread', 'Post', 'Exercise', 'HotPotatoes', 'Assignments', 'Dropbox', 'Users', 'Groups');
//$circle2=array('');
//4 Get the first level chapters - YW added parent_item_id condition for multi-level paths
$sql = "SELECT * FROM $tbl_learnpath_chapter
WHERE (lp_id=$learnpath_id and parent_item_id=0)
ORDER BY display_order ASC";
//to get all the elements, we should use the function that builds the table of content get_learnpath_tree
//WHERE (lp_id=$learnpath_id)
//ORDER BY parent_item_id, display_order ASC";
$result = api_sql_query($sql, __FILE__, __LINE__);
//5 export the items listed in Circle I one by one
while ($row = mysql_fetch_array($result))
{
//5.1 Get items data from the database for this chapter
$parent_item_id = $row['id'];
//$sql2a="SELECT * FROM $tbl_learnpath_chapter WHERE (lp_id=$learnpath_id and parent_item_id=$parent_item_id) ORDER BY display_order ASC";
//$result2a=api_sql_query($sql,__FILE__,__LINE__);
$sql2b = "SELECT * FROM $tbl_learnpath_item WHERE (parent_item_id=$parent_item_id) ORDER BY display_order ASC";
$result2b = api_sql_query($sql2b, __FILE__, __LINE__);
while ($row2 = mysql_fetch_array($result2b))
{
//5.1.1 Check if the element is in the circle1 array
$tobeexported = false;
for ($i = 0; $i < count ( $ circle1 ) & & ! $ tobeexported ; $ i + + )
{
//if the type is found in the circle1 array, ask for export
if ($circle1[$i] == $row2['item_type'])
{
$tobeexported = true;
}
}
//5.1.2 If applicable, export the item to an HTML file (see exportitem function for more details)
if ($tobeexported)
{
exportitem($row2['id'], $row2['item_id'], $row2['item_type'], $add_scorm_button);
/*if ($row2['description']) { //put the description of items to a separate file (.desc)
exportdescription($row2['id'],$row2['item_type'],$row2['description']);
}*/
}
} //end of items loop
} //end of first-level chapters loop
//6 export the other necceassary files
$filename = 'default.css';
copy('../css/'.$filename, $expdir.'/css/'.$filename);
$filename = 'ims_xml.xsd';
copy($fromdir.$filename, $expdir.'/'.$filename);
$filename = 'imscp_v1p1.xsd';
copy($fromdir.$filename, $expdir.'/'.$filename);
$filename = 'imsmd_v1p2.xsd';
copy($fromdir.$filename, $expdir.'/'.$filename);
$filename = 'APIWrapper.js';
copy($fromdir.$filename, $expdir.'/js/'.$filename);
$filename = 'SCOFunctions.js';
copy($fromdir.$filename, $expdir.'/js/'.$filename);
//in case circle1_files is not defined, build it
//$circle1_files
//7 create imsmanifest.xml
createimsmanifest($circle1_files, $learnpath_id);
//8 put the files in the exportdir into a zip and force download
include_once (api_get_path(LIBRARY_PATH)."pclzip/pclzip.lib.php");
//create zipfile of given directory
$zip_folder = new PclZip(api_get_path('SYS_COURSE_PATH').$_course['path']."/temp/".$LPnamesafe.".zip");
$zip_folder->create(api_get_path('SYS_COURSE_PATH').$_course['path']."/temp/".$LPnamesafe."/", PCLZIP_OPT_REMOVE_PATH, api_get_path('SYS_COURSE_PATH').$_course['path']."/temp/");
//api_get_path('SYS_COURSE_PATH').$_course['path']."/temp/".$LPnamesafe); // whitout folder
// modified by imandak80
/* copy(api_get_path('SYS_COURSE_PATH').$_course['path']."/temp/".$LPnamesafe.".zip",
api_get_path('SYS_COURSE_PATH').$_course['path']."/document/".$LPnamesafe.".zip");
*/
$zipfoldername = api_get_path('SYS_COURSE_PATH').$_course['path']."/temp/".$LPnamesafe;
$zipfilename = $zipfoldername.".zip";
DocumentManager :: file_send_for_download($zipfilename, false, basename($LPnamesafe.".zip"));
//9 Delete the temporary zip file and directory
include_once (api_get_path(LIBRARY_PATH)."fileManage.lib.php");
// in fileManage.lib.php
my_delete($zipfilename);
my_delete($zipfoldername);
//exit;
//0 Return the circle_files hash (array)
return ($circle1_files); //has been used before...
}
/**
* Export SCORM content into a zip file
*
* Basically, all this function does is put the scorm directory back into a zip file (like the one
* that was most probably used to import the course at first)
* @param string Name of the SCORM path (or the directory under which it resides)
* @param array Not used right now. Should replace the use of global $_course
* @return void
* @author imandak80
*/
function exportSCORM($scormname, $course)
{
global $_course;
//initialize
$tmpname = api_get_path('SYS_COURSE_PATH').$_course['path']."/scorm";
$zipfoldername = $tmpname.$scormname;
$zipfilename = $zipfoldername.".zip";
//create zipfile of given directory
include_once (api_get_path(LIBRARY_PATH)."pclzip/pclzip.lib.php");
$zip_folder = new PclZip($zipfilename);
$list = 1;
//$list = $zip_folder->create($zipfoldername."/",PCLZIP_OPT_REMOVE_PATH,$tmpname.$scormname."/"); // whitout folder
$list = $zip_folder->create($zipfoldername."/", PCLZIP_OPT_REMOVE_PATH, $tmpname);
if ($list == 0)
{
// echo "Error : ".$zip_folder->errorInfo(true);
}
//send to client
DocumentManager :: file_send_for_download($zipfilename, false, basename($scormname.".zip"));
//clear
include_once (api_get_path(LIBRARY_PATH)."fileManage.lib.php");
my_delete($zipfilename);
}
/**
* This function returns an xml tag
* $data behaves as the content in case of full tags
* $data is an array of attributes in case of returning an opening tag
* @param string
* @param string
* @param array
* @param string
* @return string
*/
function xmltagwrite($tagname, $which, $data, $linebreak = "yes")
{
switch ($which)
{
case "open" :
$tag = "< ".$tagname;
$i = 0;
while ($data[0][$i])
{
$tag .= " ".$data[0][$i]."=\"".$data[1][$i]."\"";
$i ++;
}
if ($tagname == 'file')
{
$closing = '/';
}
$tag .= $closing.">";
if ($linebreak != 'no_linebreak')
{
$tag .= "\n";
}
break;
case "close" :
$tag = "< /".$tagname.">";
if ($linebreak != 'no_linebreak')
{
$tag .= "\n";
}
break;
case "full" :
$tag = "< ".$tagname;
$tag .= ">".$data."< /".$tagname.">";
if ($linebreak != 'no_linebreak')
{
$tag .= "\n";
}
break;
}
return $tag;
}
/**
* This function writes the imsmanifest.xml and exports the chapter names
* @param array Array containing filenames
* @param integer Learnpath_id
* @return void
*/
function createimsmanifest($circle1_files, $learnpath_id)
{
global $_course, $LPname, $expdir, $LPnamesafe;
//$tbl_learnpath_main, $tbl_learnpath_chapter, $tbl_learnpath_item,
$tbl_learnpath_main = Database :: get_course_table(TABLE_LEARNPATH_MAIN);
$tbl_learnpath_item = Database :: get_course_table(TABLE_LEARNPATH_ITEM);
$tbl_learnpath_chapter = Database :: get_course_table(TABLE_LEARNPATH_CHAPTER);
include_once ('../metadata/md_funcs.php'); // RH: export metadata
//1.1 header
/*
$header='<? xml version = "1.0" encoding = "UTF-8" ?> < manifest identifier = "'.$LPnamesafe.'" xmlns = "http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd = "http://www.imsglobal.org/xsd/imsmd_v1p2" xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation = "http://www.imsglobal.org/xsd/imscp_v1p1 imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2.xsd" version = "IMS CP 1.1.3" > '."\n";
*/
//1.2
//charset should be dependent on content
$mycharset = 'ISO-8859-1';
$header = '<? xml version = "1.0" encoding = "'. $mycharset .'" ?> '."\n< manifest identifier = '".$LPnamesafe."' version = '1.1' \ n xmlns = 'http://www.imsproject.org/xsd/imscp_rootv1p1p2' \ n xmlns:adlcp = 'http://www.adlnet.org/xsd/adlcp_rootv1p2' \ n xmlns:xsi = 'http://www.w3.org/2001/XMLSchema-instance' \ n xsi:schemaLocation = 'http://www.imsproject.org/xsd/imscp_rootv1p1p2 imscp_rootv1p1p2.xsd\n http://www.imsglobal.org/xsd/imsmd_rootv1p2p1 imsmd_rootv1p2p1.xsd\n http://www.adlnet.org/xsd/adlcp_rootv1p2 adlcp_rootv1p2.xsd' > \n";
$org .= xmltagwrite('metadata', 'open');
$org .= " ".xmltagwrite('schema', 'full', 'ADL SCORM');
$org .= " ".xmltagwrite('schemaversion', 'full', '1.2');
$org .= xmltagwrite('metadata', 'close');
$defaultorgname = 'default_org';
$attributes[0][0] = 'default';
$attributes[1][0] = $defaultorgname;
$org .= xmltagwrite('organizations', 'open', $attributes);
$attributes[0][0] = 'identifier';
$attributes[1][0] = $defaultorgname;
$org .= " ".xmltagwrite('organization', 'open', $attributes);
$org .= " ".xmltagwrite('title', 'full', $LPname);
//items list
$i = 0;
$previous_item_id = '00';
while ($circle1_files[0][$i])
{
//check whether we are in the border of two chapters
//if (!$desc=strpos($circle1_files[2][$i],'scription')) { //this is is needed if the descriptions are exported to file
$sql = "SELECT * FROM $tbl_learnpath_item WHERE (id=".$circle1_files[2][$i].")";
$result = api_sql_query($sql, __FILE__, __LINE__);
$row = mysql_fetch_array($result);
$parent_item_id = $row['parent_item_id'];
if ($parent_item_id != $previous_item_id)
{
//we create the item tag for the chapter (without indifierref)
$sql2 = "SELECT * FROM $tbl_learnpath_chapter WHERE (id=".$parent_item_id.")";
$result2 = api_sql_query($sql2, __FILE__, __LINE__);
$row2 = mysql_fetch_array($result2);
$chapter_name = $row2['chapter_name'];
$attributes = '';
$attributes[0][] = 'identifier';
$attributes[1][] = 'chapter_'.$row2['id'];
$attributes[0][] = 'isvisible';
$attributes[1][] = '1';
if ($previous_item_id != '00')
{
$org .= " ".xmltagwrite('item', 'close');
}
$org .= " ".xmltagwrite('item', 'open', $attributes);
$org .= " ".xmltagwrite('title', 'full', $chapter_name);
if ($row2['chapter_description'] != '')
{
//chapter description
$attributes = '';
$attributes[0][] = 'identifier';
$attributes[1][] = 'chapter_'.$row2['id'].'_desc';
$attributes[0][] = 'isvisible';
$attributes[1][] = '1';
$org .= " ".xmltagwrite('item', 'open', $attributes);
$org .= " ".xmltagwrite('title', 'full', ' '.$row2['chapter_description']);
$org .= " ".xmltagwrite('item', 'close');
}
}
$previous_item_id = $parent_item_id;
//}
$attributes = ''; //item output
$attributes[0][] = 'identifier';
$attributes[1][] = 'item_'.$circle1_files[2][$i];
$attributes[0][] = 'identifierref';
$attributes[1][] = 'item_ref_'.$circle1_files[2][$i];
$attributes[0][] = 'isvisible';
$attributes[1][] = '1';
$org .= " ".xmltagwrite('item', 'open', $attributes);
$org .= " ".xmltagwrite('title', 'full', $circle1_files[1][$i]);
if ($row['prereq_id'] != '')
{ //item prerequisites
$attributes = '';
$attributes[0][] = 'type';
$attributes[1][] = 'aicc_script';
$org .= " ".xmltagwrite('adlcp:prerequisites', 'open', $attributes, "no_linebreak");
if ($row['prereq_type'] == 'i')
{
$org .= 'item_'.$row['prereq_id'];
}
if ($row['prereq_type'] == 'c')
{
$org .= 'chapter_'.$row['prereq_id'];
}
$org .= xmltagwrite('adlcp:prerequisites', 'close', $attributes);
}
if ($row['description'] != '')
{
//item description
$attributes = '';
$attributes[0][] = 'identifier';
$attributes[1][] = 'item_'.$circle1_files[2][$i].'_desc';
$attributes[0][] = 'isvisible';
$attributes[1][] = '1';
$org .= " ".xmltagwrite('item', 'open', $attributes);
$org .= " ".xmltagwrite('title', 'full', ' '.$row['description']);
$org .= " ".xmltagwrite('item', 'close');
}
$mds = new mdstore(TRUE); // RH: export metadata; if no table, create it
if (($mdt = $mds->mds_get($row['item_type'].'.'.$row['item_id'])))
if (($mdo = strpos($mdt, '< metadata > ')) & & ($mdc = strpos($mdt, '< / metadata > ')))
$org .= " ".substr($mdt, $mdo, $mdc - $mdo +11)."\n";
$org .= " ".xmltagwrite('item', 'close');
$i ++;
}
if ($circle1_files)
{
$org .= " ".xmltagwrite('item', 'close');
} //not needed in case of a blank path
$org .= " ".xmltagwrite('organization', 'close');
$org .= xmltagwrite('organizations', 'close');
$org .= xmltagwrite('resources', 'open');
//resources list
$i = 0;
while ($circle1_files[0][$i])
{
$attributes = '';
$attributes[0][] = 'identifier';
$attributes[1][] = 'item_ref_'.$circle1_files[2][$i];
$attributes[0][] = 'type';
$attributes[1][] = 'webcontent';
$attributes[0][] = 'adlcp:scormtype';
$attributes[1][] = 'sco';
$attributes[0][] = 'href';
$attributes[1][] = $circle1_files[0][$i];
$org .= " ".xmltagwrite('resource', 'open', $attributes);
$org .= " ".xmltagwrite('metadata', 'open');
$org .= " ".xmltagwrite('schema', 'full', 'ADL SCORM');
$org .= " ".xmltagwrite('schemaversion', 'full', '1.2');
$org .= " ".xmltagwrite('metadata', 'close');
$attributes = '';
$attributes[0][] = 'href';
$attributes[1][] = $circle1_files[0][$i];
$org .= " ".xmltagwrite('file', 'open', $attributes);
$org .= " ".xmltagwrite('resource', 'close');
$i ++;
}
$org .= xmltagwrite('resources', 'close');
$org .= xmltagwrite('manifest', 'close');
$manifest = $header.$org;
exporttofile('imsmanifest.xml', 'Manifest file', '0', $manifest);
}
/**
* Gets the tags of the file given as parameter
*
* if $filename is not found, GetSRCTags(filename) will return FALSE
* @param string file path
* @return mixed array of strings on success, false on failure
* @author unknown
* @author included by imandak80
*/
function GetSRCTags($fileName)
{
if (!($fp = fopen($fileName, "r")))
{
//if file can't be opened, return false
return false;
}
//read file contents
$contents = fread($fp, filesize($fileName));
fclose($fp);
$matches = array ();
$srcList = array ();
//get all src tags contents in this file. Use multi-line search.
preg_match_all('/src(\s)*=(\s)*[\'"]([^\'"]*)[\'"]/mi', $contents, $matches); //get the img src as contained between " or '
foreach ($matches[3] as $match)
{
if (!in_array($match, $srcList))
{
$srcList[] = $match;
}
}
if (count($srcList) == 0)
{
return false;
}
return $srcList;
}
/**
* Copy file and create directories in the path if needed.
*
* @param string $source Source path
* @param string $dest Destination path
* @return boolean true on success, false on failure
*/
function CopyNCreate($source, $dest)
{
if (strcmp($source, $dest) == 0)
return false;
$dir = "";
$tdest = explode('/', $dest);
for ($i = 0; $i < sizeof ( $ tdest ) - 1 ; $ i + + )
{
$dir = $dir.$tdest[$i]."/";
if (!is_dir($dir))
if (!mkdir($dir))
return false;
}
if (!copy($source, $dest))
return false;
return true;
}
function rcopy($source, $dest)
{
//error_log($source." -> ".$dest,0);
if (!file_exists($source))
{
//error_log($source." does not exist",0);
return false;
}
if (is_dir($source))
{
//error_log($source." is a dir",0);
//this is a directory
//remove trailing '/'
if (strrpos($source, '/') == sizeof($source) - 1)
{
$source = substr($source, 0, size_of($source) - 1);
}
if (strrpos($dest, '/') == sizeof($dest) - 1)
{
$dest = substr($dest, 0, size_of($dest) - 1);
}
if (!is_dir($dest))
{
$res = @ mkdir($dest);
if ($res === true)
{
return true;
}
else
{
//remove latest part of path and try creating that
if (rcopy(substr($source, 0, strrpos($source, '/')), substr($dest, 0, strrpos($dest, '/'))))
{
return @ mkdir($dest);
}
else
{
return false;
}
}
}
return true;
}
else
{
//this is presumably a file
//error_log($source." is a file",0);
if (!@ copy($source, $dest))
{
//error_log("Could not simple-copy $source",0);
$res = rcopy(dirname($source), dirname($dest));
if ($res === true)
{
//error_log("Welcome dir created",0);
return @ copy($source, $dest);
}
else
{
return false;
//error_log("Error creating path",0);
}
}
else
{
//error_log("Could well simple-copy $source",0);
return true;
}
}
}
?>
