<?php
/* For licensing terms, see /license.txt */
/**
* 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 @ beeznest . com > , multi-level learnpath behaviour + new SCORM tool
* @access public
* @package chamilo.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";
$result = Database::query($sql);
if (Database::num_rows($result) == 0) {
return false;
}
$row = Database::fetch_row($result);
$display_order = $row[0];
$parent_item_id = $row[1];
// Delete the item.
$sql = "DELETE FROM $tbl_learnpath_item WHERE id='$id'";
$result = Database::query($sql);
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";
$result = Database::query($sql);
$sql = "UPDATE $tbl_learnpath_chapter SET display_order = display_order-1 WHERE display_order > $display_order AND parent_item_id = $parent_item_id";
$result = Database::query($sql);
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";
$result = Database::query($sql);
while ($row = Database::fetch_array($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";
$result = Database::query($sql);
if (Database::num_rows($result) == 0) {
return false;
}
$row = Database::fetch_row($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)";
$result = Database::query($sql);
// Delete items from that chapter.
$sql2 = "DELETE FROM $tbl_learnpath_item WHERE parent_item_id=$parent_item_id";
$result = Database::query($sql2);
// 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";
$result = Database::query($sql);
$sql = "UPDATE $tbl_learnpath_chapter SET display_order = display_order-1 WHERE display_order > $display_order AND parent_item_id = $parent_id";
$result = Database::query($sql);
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'";
$result = Database::query($sql);
//@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";
$result = Database::query($sql);
while ($row = Database::fetch_array($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;
}
Database::query($sql1);
Database::query($sql2);
}
/**
* 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";
$result = Database::query($sql);
$previousrow = '';
// See similar comment in moveitem() function.
// @TODO: this only works for chapters in multi-level mode. Why not gather
// this function and moveitem to keep only one multi-uses function?
while ($row = Database::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)";
Database::query($sql1);
Database::query($sql2);
unset ($this_cat_order);
unset ($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";
$result = Database::query($sql);
$row = Database::fetch_array($result);
$last_chapter_order = $row['display_order'];
// Getting the last order number of the items.
$sql = "SELECT * FROM $tbl_learnpath_item
WHERE parent_item_id = $parent_id
ORDER BY display_order DESC";
$result = Database::query($sql);
$row = Database::fetch_array($result);
$last_item_order = $row['display_order'];
$new_order = max($last_chapter_order, $last_item_order) + 1;
$course_id = api_get_course_int_id();
if ($type === 'chapter') {
$sql = "INSERT INTO $tbl_learnpath_chapter (c_id, lp_id, chapter_name, chapter_description, display_order)
VALUES ( $course_id,
'".domesticate($learnpath_id)."',
'".domesticate(htmlspecialchars($name))."',
'".domesticate(htmlspecialchars($chapter_description))."',
$new_order )";
$result = Database::query($sql);
if ($result === false) {
return false;
}
$id = Database :: insert_id();
} elseif ($type === 'item') {
$sql = "INSERT INTO $tbl_learnpath_item (c_id, parent_item_id, item_type, display_order) VALUES
($course_id, '".domesticate($parent_id)."','".domesticate(htmlspecialchars($type))."', $new_order )";
$result = Database::query($sql);
if ($result === false) {
return false;
}
$id = Database :: 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";
$result = Database::query($sql);
while ($row = Database::fetch_array($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 $lang declarations, use get_lang, improve structure.
* @author Denes Nagy
* @author Roan Embrechts
* @author Yannick Warnier < yannick.warnier @ beeznest . com > - complete redesign for multi-level learnpath chapters
*/
function display_learnpath_chapters($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(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);
//$num_modules = Database::num_rows($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 = Database::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 (api_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 = \"javascript: 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 = \"javascript: 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 (api_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.
$result_items2 = Database::query($sql_items2);
$number_items2 = Database::num_rows($result_items2);
if ($number_items2 == 0) {
echo get_lang('PrerequisiteDeletedError');
}
$row_items2 = Database::fetch_array($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.
$result_items2 = Database::query($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);
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 = \"javascript: 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";
$result = Database::query($sql);
$i = 1;
$num_modules = Database::num_rows($result);
while ($row = Database::fetch_array($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 (api_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 = \"javascript: return confirmation ( ' " . $ row [ ' learnpath_name ' ] . " ' ) ; \ " > < / a > < / td > ";
$id = $row['lp_id'];
$sql2 = "SELECT * FROM $tbl_learnpath_main WHERE lp_id=$id";
$result2 = Database::query($sql2);
$row2 = Database::fetch_array($result2);
$name = $row2['learnpath_name'];
$sql3 = "SELECT * FROM $tbl_tool WHERE (name=\"$name\" AND image='scormbuilder.gif')";
$result3 = Database::query($sql3);
$row3 = Database::fetch_array($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(TABLE_LP_ITEM);
$sql_items = "SELECT * FROM $tbl_lp_item WHERE parent_item_id='$categoryid' ORDER BY display_order ASC";
$result_items = Database::query($sql_items);
$number_items = Database::num_rows($result_items);
$i = 1;
while ($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 (api_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.
$result_items2 = Database::query($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
$result_items2 = Database::query($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);
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 = \"javascript: 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'";
$moduleid_sql = Database::query($sql_items);
$moduleid_array = Database::fetch_array($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";
$result_items = Database::query($sql_items);
$ar = Database::fetch_array($result_items);
while ($ar != '') {
$result[] = $ar;
$ar = Database::fetch_array($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(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";
$result_items = Database::query($sql_items);
$ar = Database::fetch_array($result_items);
while ($ar != '') {
$result[] = $ar;
$ar = Database::fetch_array($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(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";
$result_items = Database::query($sql_items);
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";
$result_items2 = Database::query($sql_items2);
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'";
$result_items = Database::query($sql_items);
$row = Database::fetch_array($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)";
$result_items3 = Database::query($sql_items3);
$row3 = Database::fetch_array($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); // Removing occasional line breaks and white spaces
// 4.a.4 Get the prerequisite item.
$sql6 = "SELECT * FROM $tbl_learnpath_item WHERE (id='$id_in_path3')";
$result6 = Database::query($sql6);
$row6 = Database::fetch_array($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'";
$result_items3 = Database::query($sql_items3);
$allcompleted = true;
while ($row3 = Database::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)";
$result_items4 = Database::query($sql_items4);
$row4 = Database::fetch_array($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')";
$result5 = Database::query($sql5);
$row5 = Database::fetch_array($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 @ beeznest . 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(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);
$res = Database::query($sql);
// 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);
$res = Database::query($sql);
//error_log('New LP - learnpath_functions - get_learnpath_tree: Found '.Database::num_rows($res).' results', 0);
while ($myrow = Database::fetch_array($res, 'ASSOC')) {
//$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 $all_items_by_chapter;
}
/**
* Gives a list of sequencial elements IDs for next/previous actions
* @param array The elements tree as returned by get_learnpath_tree()
* @param integer The chapter id to start from
* @param boolean Whether to include chapters or not
* @return array List of elements in the first to last order
* @author Yannick Warnier < yannick.warnier @ beeznest . com >
*/
function get_ordered_items_list($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 $list;
}
/**
* Displays the structure of a chapter recursively. Takes the result of get_learnpath_tree as argument
* @param array Chapter structure
* @param integer Chapter ID (start point in the tree)
* @param integer Learnpath ID
* @param integer User ID
* @param boolean Indicates if the style is wrapped (true) or extended (false)
* @param integer Level reached so far in the tree depth (enables recursive behaviour)
* @return array Number of items, Number of items completed
* @author Many changes by Yannick Warnier < yannick.warnier @ beeznest . com >
*/
function display_toc_chapter_contents($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."')";
$result0 = Database::query($sql0);
$row0 = Database::fetch_array($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, $num_completed);
}
/**
* Returns a string to display in the tracking frame within the contents.php page (for example)
* @param integer Learnpath id
* @param integer Current user id
* @param integer Starting chapter id
* @param array Tree of elements as returned by get_learnpath_tree()
* @param integer Level of recursivity we have reached
* @param integer Counter of elements already displayed
* @author Yannick Warnier < yannick.warnier @ beeznest . com >
* @note : forced display because of display_addedresource_link_in_learnpath behaviour (outputing a string would be better)
*/
function get_tracking_table($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'];
$res = Database::query($sql);
$myrow = Database::fetch_array($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";
$result = Database::query($sql);
$num_modules = Database::num_rows($result);
$empty = true;
if ($num_modules != 0) {
while ($row = Database::fetch_array($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";
$result2 = Database::query($sql2);
$num_items = Database::num_rows($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][] = $LPid;
}
/**
* This function exports the given Chamilo test
* @param integer Test ID
* @return string The test itself as an HTML string
*/
function export_exercise($item_id) {
global $expdir, $_course, $_configuration, $_SESSION, $_SERVER, $language_interface, $langExerciseNotFound, $langQuestion, $langOk, $origin, $questionNum;
$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);
$TBL_EXERCISES = Database :: get_course_table(TABLE_QUIZ_TEST);
/* Clears the exercise session */
if (isset ($_SESSION['objExercise'])) {
api_session_unregister('objExercise');
}
if (isset ($_SESSION['objQuestion'])) {
api_session_unregister('objQuestion');
}
if (isset ($_SESSION['objAnswer'])) {
api_session_unregister('objAnswer');
}
if (isset ($_SESSION['questionList'])) {
api_session_unregister('questionList');
}
if (isset ($_SESSION['exerciseResult'])) {
api_session_unregister('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) || (!$objExercise->selectStatus() & & !api_is_allowed_to_edit() & & ($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 ++;
}
}
$exerciseTitle = text_filter($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 > ";
}
$exerciseDescription = text_filter($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;
}
}
}
echo $s = "< tr bgcolor = '#e6e6e6' > < td valign = 'top' colspan = '2' > ".get_lang('Question')." ";
// Call the showQuestion() function from exercise.lib.php. This basically displays the question in a table.
$test .= showQuestion($questionId, false, 'export', $i);
} // 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();
$libp = api_get_path(SYS_CODE_PAH);
include_once $libp.'exercice/exercise.class.php';
include_once $libp.'question.class.php';
include_once $libp.'answer.class.php';
include_once $libp.'exercise.lib.php';
$langLasting = '';//avoid code parser warning
include_once $libp.'lang/english/announcements.inc.php'; //this line is here only for $langPubl in announcements
include_once $libp.'lang/'.$language_interface.'/announcements.inc.php'; //this line is here only for $langPubl in announcements
include_once $libp.'lang/english/agenda.inc.php'; //this line is here only for $langLasting
include_once $libp.'lang/'.$language_interface.'/agenda.inc.php'; //this line is here only for $langLasting
include_once $libp.'lang/english/course_description.inc.php'; //this line is here only for $langThisCourseDescriptionIsEmpty
include_once $libp.'lang/'.$language_interface.'/course_description.inc.php'; // -||-
include_once $libp.'lang/english/resourcelinker.inc.php';
include_once $libp.'lang/'.$language_interface.'/resourcelinker.inc.php';
include_once $libp.'lang/english/learnpath.inc.php';
include_once $libp.'lang/'.$language_interface.'/learnpath.inc.php';
include_once $libp.'lang/english/exercice.inc.php';
include_once $libp.'lang/'.$language_interface.'/exercice.inc.php';
include_once '../resourcelinker/resourcelinker.inc.php';
$LPname = display_addedresource_link_in_learnpath($item_type, $item_id, '', $id, 'builder', 'nolink');
$expcontent = "<!--
This is an exported file from Chamilo 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 = \"javascript: 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 ] These 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)";
$result = Database::query($sql);
// 2. Prepare table output.
$expcontent .= "< table class = \"data_table\" > ";
$barreMois = '';
// 3. For each event corresponding to this agenda, do the following:
while ($myrow = Database::fetch_array($result)) {
$start_date_local = api_get_local_time($myrow['start_date'], null, date_default_timezone_get());
//3.1 Make the blue month bar appear only once.
if ($barreMois != api_format_date($start_date_local, "%m")) {
// 3.1.1 Update the check value for the month bar.
$barreMois = api_format_date($start_date_local, "%m");
// 3.1.2 Display the month bar.
$expcontent .= "< tr > < td id = \"title\" colspan = \"2\" class = \"month\" valign = \"top\" > ".api_format_date($start_date_local, "%B %Y")."< / td > < / tr > ";
}
// 3.2 Display the agenda items (of this month): the date, hour and title.
$db_date = (int) api_format_date($start_date_local, "%d");
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.
$expcontent .= "< a name = \"".$db_date."\" > < / a > "; // anchoring
// 3.2.3 Write the date and time of this event to the export string.
$expcontent .= api_format_date($start_date_local);
// 3.2.4 If a duration is set, write it, otherwise ignore.
if ($myrow['duration'] == '') {
$expcontent .= "< br / > ";
} else {
$expcontent .= " / ".$langLasting." ".$myrow['duration']."< br / > "; //langLasting comes from lang/x/agenda.inc.php
}
// 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);
$content = text_filter($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'";
$result = Database::query($sql);
// 2. Initialise export string
$expcontent .= "< table class = \"data_table\" > ";
// 3. For each announcement matching the query
while ($myrow = Database::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);
$content = text_filter($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 . " > ".$langPubl." : ".api_convert_and_format_date($last_post_datetime, null, date_default_timezone_get())."< / 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);
$result = Database::query("SELECT id, title, content FROM ".$tbl_course_description." ORDER BY id");
// 2. Check this element.
if (Database::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 = Database::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']));
$content = text_filter($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";
$sql_result = Database::query($sql_query);
$myrow = Database::fetch_array($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;
// Html 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 Chamilo 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.
$TBL_INTRO = Database :: get_course_tool_intro_table();
// Modified by Ivan Tcholakov, 15-SEP-2008.
//$result = Database::query("SELECT * FROM ".$TBL_INTRO." WHERE id=1");
$result = Database::query("SELECT * FROM ".$TBL_INTRO." WHERE id='course_homepage'");
//
$myrow = Database::fetch_array($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 = Database::query("SELECT * FROM $tbl_document WHERE id=$item_id");
$myrow = Database::fetch_array($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 Chamilo 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(){";
$js_content = "var SaveScoreVariable = 0; // This variable is included by Chamilo LP export\n"."function mySaveScore() // This function is included by Chamilo LP export\n"."{\n"." if (SaveScoreVariable==0)\n"." {\n"." SaveScoreVariable = 1;\n".
//the following function are implemented in SCOFunctions.js
" exitPageStatus = true;\n"." computeTime();\n"." doLMSSetValue( 'cmi.core.score.raw', Score );\n"." doLMSSetValue( 'cmi.core.lesson_status', 'completed' );\n"." doLMSCommit();\n"." doLMSFinish();\n".
// " document.write('".$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;
// Chamilo 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 = Database::query("SELECT * FROM $tbl_posts where post_id=$item_id");
$myrow = Database::fetch_array($result);
// Grabbing the title of the post.
$sql_titel = "SELECT * FROM $tbl_posts_text WHERE post_id=".$myrow['post_id'];
$result_titel = Database::query($sql_titel);
$myrow_titel = Database::fetch_array($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 Chamilo 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 = Database::query("SELECT * FROM $TABLETOOLLINK WHERE id=$item_id");
$myrow = Database::fetch_array($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($dir)) {
return true;
}
return false;
}
/**
* This functions exports the given path. This is the opener function, which is called first
* @deprecated this function is only called in the newscorm/scorm_admin.php which is deprecated
* @param integer The path id
* @return resource A zip file, containing a hopefully Scorm compliant course made from the LP. This might happen when we don't actually exit the function first :-)
*/
function exportpath($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)";
$result = Database::query($sql);
$row = Database::fetch_array($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($expdir, api_get_permissions_for_new_directories());
mkdir($expdir.'/css', api_get_permissions_for_new_directories());
mkdir($expdir.'/data', api_get_permissions_for_new_directories());
mkdir($expdir.'/js', api_get_permissions_for_new_directories());
mkdir($expdir.'/data/images', api_get_permissions_for_new_directories());
mkdir($expdir.'/data/audio', api_get_permissions_for_new_directories());
mkdir($expdir.'/data/videos', api_get_permissions_for_new_directories());
$circle1 = array( // This array contains the types of elements we want to export.
'Chapter', 'Agenda', 'Ad_Valvas', 'Course_description', 'Document', 'Introduction_text', 'Link _self', 'Link _blank', 'Forum', 'Thread', 'Post', 'Exercise', 'HotPotatoes', 'Assignments', 'Dropbox', 'Users', 'Groups');
//$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";
$result = Database::query($sql);
// 5. export the items listed in Circle I one by one.
while ($row = Database::fetch_array($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 = Database::query($sql);
$sql2b = "SELECT * FROM $tbl_learnpath_item WHERE (parent_item_id=$parent_item_id) ORDER BY display_order ASC";
$result2b = Database::query($sql2b);
while ($row2 = Database::fetch_array($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($zipfoldername);
//exit;
// 10. Return the circle_files hash (array).
return ($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)
* @deprecated this function is only called in the newscorm/scorm_admin.php which is deprecated
*
* @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
// Header
// Charset should be dependent on content.
$header = '<? xml version = "1.0" encoding = "'.api_get_system_encoding().'" ?> '."\n< manifest identifier = '".$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 needed if the descriptions are exported to file.
$sql = "SELECT * FROM $tbl_learnpath_item WHERE (id=".$circle1_files[2][$i].")";
$result = Database::query($sql);
$row = Database::fetch_array($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.")";
$result2 = Database::query($sql2);
$row2 = Database::fetch_array($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 = api_strpos($mdt, '< metadata > ')) & & ($mdc = api_strpos($mdt, '< / metadata > ')))
$org .= ' '.api_substr($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'))) {
// Iif 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($dir, api_get_permissions_for_new_directories()))
return false;
}
if (!copy($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, api_get_permissions_for_new_directories());
if ($res !== false) {
return true;
} else {
// Remove latest part of path and try creating that.
if (rcopy(substr($source, 0, strrpos($source, '/')), substr($dest, 0, strrpos($dest, '/')))) {
return @mkdir($dest, api_get_permissions_for_new_directories());
} 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;
}
}
}
