function nested_pages($params, $node, $variation = 0)
{
global $CTX, $FUNCS, $PAGE, $DB;
$attr = $FUNCS->get_named_vars(array('masterpage' => '', 'root' => '', 'childof' => '', 'depth' => '0', 'orderby' => '', 'order' => '', 'exclude' => '', 'extended_info' => '0', 'ignore_show_in_menu' => '0', 'include_custom_fields' => '0', 'paginate' => 0, 'limit' => '', 'offset' => '0', 'startcount' => ''), $params);
extract($attr);
$masterpage = trim($masterpage);
$root = trim($root);
$childof = trim($childof);
$hierarchical = 1;
// always 1
$depth = $FUNCS->is_natural($depth) ? intval($depth) : 0;
$orderby = strtolower(trim($orderby));
if (!in_array($orderby, array('name', 'title', 'id', 'weight'))) {
$orderby = 'weight';
}
if ($orderby == 'weight') {
$orderby = 'weightx';
}
$order = strtolower(trim($order));
if ($order != 'desc' && $order != 'asc') {
$order = 'asc';
}
$exclude = $exclude ? array_map("trim", explode(",", $exclude)) : array();
$extended_info = $extended_info == 1 ? 1 : 0;
if ($variation == 1) {
$extended_info = 1;
}
// always 1 with 'menu'
$ignore_show_in_menu = $ignore_show_in_menu == 1 ? 1 : 0;
$ignore_active_status = 0;
// unpublished pages will always be ignored
$include_custom_fields = $variation ? 0 : ($include_custom_fields == 1 ? 1 : 0);
$paginate = $variation ? 0 : ($paginate == 1 ? 1 : 0);
if ($paginate) {
$extended_info = 0;
}
$limit = $FUNCS->is_non_zero_natural($limit) ? intval($limit) : 1000;
//Practically unlimited.
$offset = $FUNCS->is_natural($offset) ? intval($offset) : 0;
$startcount = $FUNCS->is_int($startcount) ? intval($startcount) : 1;
$startcount--;
// see if masterpage exists
if ($masterpage == '') {
if (!$PAGE->tpl_nested_pages) {
return;
}
$tree =& $FUNCS->get_nested_pages($PAGE->tpl_id, $PAGE->tpl_name, $PAGE->tpl_access_level, $orderby, $order);
$tpl_name = $PAGE->tpl_name;
} else {
$rs = $DB->select(K_TBL_TEMPLATES, array('*'), "name='" . $DB->sanitize($masterpage) . "'");
if (!count($rs)) {
return;
}
if (!$rs[0]['nested_pages']) {
return;
}
$tpl_id = $rs[0]['id'];
$tpl_name = $rs[0]['name'];
$tpl_access_level = $rs[0]['access_level'];
// get the tree of nested pages
$tree =& $FUNCS->get_nested_pages($tpl_id, $tpl_name, $tpl_access_level, $orderby, $order);
}
// mark the active trail in the tree.. also creates the crumbs.
$tree->mark_current(!$ignore_show_in_menu);
// if called from 'nested_crumbs', return crumbs and exit ..
if ($variation == 2) {
// crumbs.. only $masterpage and $ignore_show_in_menu are the valid params here
return $tree->crumbs;
}
// Check if either 'root' or 'childof' set to special keywords
// keywords:
// @1, @2 etc. - start from x level parent of the most current item.
// @current - start from most current item.
// @current-1, @current-2 etc. - start from parent of most current item at x level above it.
if ($root || $childof) {
// root takes precedence over childof
$special = $root ? $root : $childof;
if ($special[0] == '@') {
$special = substr($special, 1);
// find the most current item
for ($x = 0; $x < count($tree->crumbs); $x++) {
$item = $tree->crumbs[$x];
if ($item->most_current) {
break;
}
}
if ($x == count($tree->crumbs)) {
return;
}
if ($FUNCS->is_non_zero_natural($special)) {
// 1, 2, etc.
$special = $special - 1;
// Find the requested parent at the requested level, if any
if ($special > $x) {
return;
}
// cannot go past the current item's level
$item = $tree->crumbs[$special];
$root ? $root = $item->name : ($childof = $item->name);
} else {
if ($special == 'current') {
$root ? $root = $item->name : ($childof = $item->name);
} else {
$arr = array_map("trim", explode('-', $special));
if ($arr[0] == 'current' && $FUNCS->is_non_zero_natural($arr[1])) {
// Find parent at requested level above the current item
$special = $x - $arr[1];
if ($special < -1) {
return;
}
if ($special == -1) {
// _ROOT_
if ($root) {
return;
/* cannot add _ROOT_ to returned array */
} else {
$childof = '';
}
} else {
$item = $tree->crumbs[$special];
$root ? $root = $item->name : ($childof = $item->name);
}
} else {
// unknown value given
return;
}
}
}
}
}
// root takes precedence over childof
if ($root != '') {
$f =& $tree->find($root);
if (!$f) {
return;
}
unset($tree);
$tree = new KNestedPage(array('id' => '-1', 'name' => '_root_', 'pid' => '-1'), $tpl_name, new KError());
$tree->set_sort($orderby, $order);
$tree->add_child($f);
unset($f);
} elseif ($childof != '') {
$f =& $tree->find($childof);
if (!$f || !count($f->children)) {
return;
}
unset($tree);
$tree = new KNestedPage(array('id' => '-1', 'name' => '_root_', 'pid' => '-1'), $tpl_name, new KError());
$tree->set_sort($orderby, $order);
$count = count($f->children);
for ($x = 0; $x < $count; $x++) {
$tree->add_child($f->children[$x]);
}
unset($f);
}
$tree->set_dynamic_count($depth, $exclude, !$ignore_show_in_menu);
// pagination.. goes into normal 'pages' listing mode
if ($paginate) {
$qs_param = 'pg';
$pgn_pno = 1;
if ($paginate) {
if (isset($_GET[$qs_param]) && $FUNCS->is_non_zero_natural($_GET[$qs_param])) {
$pgn_pno = (int) $_GET[$qs_param];
}
}
$total_rows = $tree->total_children_ex - $offset;
if ($total_rows < 1) {
return;
}
$total_pages = ceil($total_rows / $limit);
if ($pgn_pno > $total_pages && $total_pages > 0) {
$pgn_pno = $total_pages;
}
$first_record_on_page = $limit * ($pgn_pno - 1) + 1 + $offset;
$last_record_on_page = $first_record_on_page + $limit - 1;
if ($last_record_on_page > $total_rows + $offset) {
$last_record_on_page = $total_rows + $offset;
}
$total_records_on_page = $last_record_on_page - ($first_record_on_page - 1);
// calculate the required links
$page_link = K_SITE_URL . $PAGE->link;
$sep = '';
foreach ($_GET as $qk => $qv) {
if ($qk == 'p' || $qk == 'f' || $qk == 'd' || $qk == 'fname' || $qk == 'pname' || $qk == '_nr_') {
continue;
}
if ($qk == $qs_param) {
continue;
}
$qs .= $sep . $qk . '=' . urlencode($qv);
$sep = '&';
}
if ($qs) {
$page_link .= strpos($page_link, '?') === false ? '?' : '&';
$page_link .= $qs;
}
if ($total_rows > $limit) {
$paginated = 1;
$sep = strpos($page_link, '?') === false ? '?' : '&';
// 'Prev' link
if ($pgn_pno > 1) {
if ($pgn_pno == 2) {
$pgn_prev_link = $page_link;
} else {
$pgn_prev_link = sprintf("%s%s%s=%d", $page_link, $sep, $qs_param, $pgn_pno - 1);
}
}
// 'Next' link
if ($pgn_pno < $total_pages) {
$pgn_next_link = sprintf("%s%s%s=%d", $page_link, $sep, $qs_param, $pgn_pno + 1);
}
}
// pass data on to callback function to be set in context
$node->_paginate = 1;
$node->_total_records = $total_rows;
$node->_from = $first_record_on_page;
$node->_to = $last_record_on_page;
$node->_total = $total_records_on_page;
$node->_offset = $offset;
$node->_startcount = $startcount;
$node->_total_pages = $total_pages;
$node->_current_page = $pgn_pno;
$node->_paginate_limit = $limit;
$node->_counter = 0;
$node->_page_link = $page_link;
$node->_qs_param = $qs_param;
$node->_paginated = $paginated;
$node->_pgn_next_link = $pgn_next_link;
$node->_pgn_prev_link = $pgn_prev_link;
}
$html = '';
$visitor = !$variation ? '_nested_pages_visitor' : '_nested_pages_visitor_menu';
$CTX->set('k_show_extended_info', $extended_info);
if (!$variation) {
$node->_include_custom_fields = $include_custom_fields;
}
$tree->visit(array($this, $visitor), $html, $node, $depth, $extended_info, $exclude, 0, !$ignore_show_in_menu, !$ignore_active_status, $paginate);
return $html;
}