Файл: system/core/nestedsets.php
Строк: 192
<?php
class cmsNestedsets {
private $TableName = '';
private $FieldID;
private $FieldIDParent;
private $FieldLeft;
private $FieldRight;
private $FieldDiffer;
private $FieldLevel;
private $FieldOrder;
private $FieldIgnore;
private $db;
public function __construct ($db) {
$this->FieldID = "id";
$this->FieldIDParent = "parent_id";
$this->FieldOrder = "ordering";
$this->FieldLeft = "ns_left";
$this->FieldRight = "ns_right";
$this->FieldDiffer = "ns_differ";
$this->FieldLevel = "ns_level";
$this->FieldIgnore = "ns_ignore";
$this->db = $db;
}
public function setTable($table){
$this->TableName = "{#}$table";
}
public function _safe_set (&$var_true, $var_false = "")
{
if (!isset ($var_true))
{ $var_true = $var_false; }
}
public function _safe_query ($query)
{
if (empty($query)) { return false; }
$result = $this->db->query($query);
return $result;
}
public function ClearNodes ($Differ = "")
{
$sql_delete = "DELETE FROM " . $this->TableName . " WHERE " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_delete);
}
public function DeleteNode ($IDNode = -1, $Differ = "")
{
$sql_select = "SELECT * FROM " . $this->TableName . " WHERE " . $this->FieldID . " = " . $IDNode . " AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$rs_select = $this->_safe_query ($sql_select);
if (($rs_select) && ($row_select = $this->db->fetchAssoc ($rs_select)))
{
$this->_safe_set ($row_select[$this->FieldID], -1);
$this->_safe_set ($row_select[$this->FieldLeft], -1);
$this->_safe_set ($row_select[$this->FieldRight], -1);
$delete_offset = $row_select[$this->FieldRight] - $row_select[$this->FieldLeft];
// Delete sub nodes
$sql_delete = "DELETE FROM " . $this->TableName .
" WHERE " . $this->FieldLeft . " >= " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldLeft . " <= " . $row_select[$this->FieldRight] .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_delete);
// Update FieldLeft
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldLeft . " = " . $this->FieldLeft . " - " . ($delete_offset + 1) .
" WHERE " . $this->FieldLeft . " > " . $row_select[$this->FieldRight] .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_update);
// Update FieldRight
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldRight . " = " . $this->FieldRight . " - " . ($delete_offset + 1) .
" WHERE " . $this->FieldRight . " > " . $row_select[$this->FieldRight] .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_update);
$this->db->freeResult ($rs_select);
return true;
}
else
{ return false; }
}
public function AddRootNode ($Differ = "")
{
$sql_insert = "INSERT INTO " . $this->TableName .
" (title, " . $this->FieldIDParent . ", " . $this->FieldLeft . ", " . $this->FieldRight .
", " . $this->FieldLevel . ", " . $this->FieldOrder . ", " . $this->FieldDiffer . ") " .
" VALUES ('---', 0, 1, 2, 0, 1, '" . $Differ . "')";
$this->_safe_query ($sql_insert);
return $this->db->lastId ();
}
public function AddNode ($IDParent = -1, $Order = -1, $Differ = "")
{
$sql_select = "SELECT * FROM " . $this->TableName . " WHERE " . $this->FieldID . " = " . $IDParent . " AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$rs_select = $this->_safe_query ($sql_select);
if (($rs_select) && ($row_select = $this->db->fetchAssoc ($rs_select)))
{
$this->_safe_set ($row_select[$this->FieldID], -1);
$this->_safe_set ($row_select[$this->FieldLeft], -1);
$this->_safe_set ($row_select[$this->FieldRight], -1);
$this->_safe_set ($row_select[$this->FieldLevel], -1);
$left = $row_select[$this->FieldLeft] + 1;
// Update Order (set order = order +1 where order>$Order)
if ($Order == -1)
{
$sql_order = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldIDParent . " = " . $IDParent .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldOrder . " DESC " .
" LIMIT 0,1";
$rs_order = $this->_safe_query ($sql_order);
if (($rs_order) && ($row_order = $this->db->fetchAssoc ($rs_order)))
{
$this->_safe_set ($row_order[$this->FieldOrder], 0);
$Order = $row_order[$this->FieldOrder] + 1;
$this->db->freeResult ($rs_order);
}
else
{ $Order = 1; }
}
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldOrder . " = " . $this->FieldOrder . " + 1" .
" WHERE " . $this->FieldIDParent . " = " . $IDParent .
" AND " . $this->FieldOrder . " >= " . $Order .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_update);
$sql_order = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldIDParent . " = " . $IDParent .
" AND " . $this->FieldOrder . " <= " . $Order .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldOrder . " DESC " .
" LIMIT 0,1";
$rs_order = $this->_safe_query ($sql_order);
if (($rs_order) && ($row_order = $this->db->fetchAssoc ($rs_order)))
{
$this->_safe_set ($row_order[$this->FieldRight], -1);
$left = $row_order[$this->FieldRight] + 1;
$this->db->freeResult ($rs_order);
}
$right = $left + 1;
// Update FieldLeft
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldLeft . " = " . $this->FieldLeft . " + 2" .
" WHERE " . $this->FieldLeft . " >= " . $left .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_update);
// Update FieldRight
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldRight . " = " . $this->FieldRight . " + 2" .
" WHERE " . $this->FieldRight . " >= " . $left .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_update);
// Insert
$sql_insert = "INSERT INTO " . $this->TableName .
" (" . $this->FieldIDParent . ", " . $this->FieldLeft . ", " . $this->FieldRight .
", " . $this->FieldLevel . ", " . $this->FieldOrder . ", " . $this->FieldDiffer . ") " .
" VALUES (" . $IDParent . ", " . $left . ", " . $right .
", " . ($row_select[$this->FieldLevel] + 1) . ", " . $Order . ", '" . $Differ . "')";
$this->_safe_query ($sql_insert);
$this->db->freeResult ($rs_select);
return $this->db->lastId ();
}
else
{ return false; }
}
public function MoveOrdering($IDNode, $dir = 1){
$sql = "SELECT * FROM {$this->TableName} WHERE {$this->FieldID}='{$IDNode}'";
$res = $this->_safe_query ($sql);
$move_row = $this->db->fetchAssoc($res);
$this->db->freeResult($res);
if ($move_row[$this->FieldDiffer]) $Differ = 'AND ' . $this->FieldDiffer . ' = ' . $move_row[$this->FieldDiffer];
else $Differ = '';
// максимальное значение сортировки
$sql = "SELECT MAX({$this->FieldOrder}) FROM {$this->TableName} WHERE {$this->FieldIDParent}={$move_row[$this->FieldIDParent]}";
$res = $this->_safe_query ($sql);
list($maxordering) = $this->db->fetchRow($res);
if (!$maxordering) $maxordering = 1;
// минимальное значение сортировки
$sql_min = "SELECT MIN({$this->FieldOrder}) FROM {$this->TableName} WHERE {$this->FieldIDParent}={$move_row[$this->FieldIDParent]}";
$res_min = $this->_safe_query ($sql_min);
list($minordering) = $this->db->fetchRow($res_min);
if (!$minordering) $minordering = 1;
$this->db->freeResult($res);
if ($dir == -1 && $move_row[$this->FieldOrder] == $minordering) return;
if ($dir == 1 && $move_row[$this->FieldOrder] == $maxordering) return;
if ($dir == -1){
$sql = "UPDATE {$this->TableName} SET {$this->FieldIgnore} = 1
WHERE {$this->FieldLeft} >= {$move_row[$this->FieldLeft]} AND {$this->FieldRight} <= {$move_row[$this->FieldRight]} {$Differ}";
$this->_safe_query ($sql);
$count = $this->db->affectedRows() * 2;
$sql = "SELECT * FROM {$this->TableName}
WHERE {$this->FieldIDParent} = {$move_row[$this->FieldIDParent]} AND {$this->FieldOrder} = ".($move_row[$this->FieldOrder]-1);
$res = $this->_safe_query ($sql);
$near = $this->db->fetchAssoc($res);
$this->db->freeResult($res);
$sql = "UPDATE {$this->TableName}
SET {$this->FieldLeft} = {$this->FieldLeft} + {$count},
{$this->FieldRight} = {$this->FieldRight} + {$count}
WHERE {$this->FieldLeft} >= {$near[$this->FieldLeft]} AND {$this->FieldRight} <= {$near[$this->FieldRight]}
{$Differ}";
$this->_safe_query ($sql);
$count2 = $this->db->affectedRows() * 2;
$sql = "UPDATE {$this->TableName}
SET {$this->FieldLeft} = {$this->FieldLeft} - {$count2},
{$this->FieldRight} = {$this->FieldRight} - {$count2},
{$this->FieldIgnore} = 0
WHERE {$this->FieldIgnore} = 1
{$Differ}";
$this->_safe_query ($sql);
$sql = "UPDATE {$this->TableName} SET {$this->FieldOrder} = {$this->FieldOrder} - 1
WHERE {$this->FieldID} = {$IDNode}";
$this->_safe_query ($sql);
$sql = "UPDATE {$this->TableName} SET {$this->FieldOrder} = {$this->FieldOrder} + 1
WHERE {$this->FieldID} = {$near[$this->FieldID]}";
$this->_safe_query ($sql);
}
if ($dir == 1){
$sql = "UPDATE {$this->TableName} SET {$this->FieldIgnore} = 1
WHERE {$this->FieldLeft} >= {$move_row[$this->FieldLeft]} AND {$this->FieldRight} <= {$move_row[$this->FieldRight]} {$Differ}";
$this->_safe_query ($sql);
$count = $this->db->affectedRows() * 2;
$sql = "SELECT * FROM {$this->TableName}
WHERE {$this->FieldIDParent} = {$move_row[$this->FieldIDParent]} AND {$this->FieldOrder} = ".($move_row[$this->FieldOrder]+1);
$res = $this->_safe_query ($sql);
$near = $this->db->fetchAssoc($res);
$this->db->freeResult($res);
$sql = "UPDATE {$this->TableName}
SET {$this->FieldLeft} = {$this->FieldLeft} - {$count},
{$this->FieldRight} = {$this->FieldRight} - {$count}
WHERE {$this->FieldLeft} >= {$near[$this->FieldLeft]} AND {$this->FieldRight} <= {$near[$this->FieldRight]}
{$Differ}";
$this->_safe_query ($sql);
$count2 = $this->db->affectedRows() * 2;
$sql = "UPDATE {$this->TableName}
SET {$this->FieldLeft} = {$this->FieldLeft} + {$count2},
{$this->FieldRight} = {$this->FieldRight} + {$count2},
{$this->FieldIgnore} = 0
WHERE {$this->FieldIgnore} = 1
{$Differ}";
$this->_safe_query ($sql);
$sql = "UPDATE {$this->TableName} SET {$this->FieldOrder} = {$this->FieldOrder} + 1
WHERE {$this->FieldID} = {$IDNode}";
$this->_safe_query ($sql);
$sql = "UPDATE {$this->TableName} SET {$this->FieldOrder} = {$this->FieldOrder} - 1
WHERE {$this->FieldID} = {$near[$this->FieldID]}";
$this->_safe_query ($sql);
}
return true;
}
public function MoveNode ($IDNode = -1, $IDParent = -1, $Order = -1, $Differ = "")
{
$sql_select = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldID . " = " . $IDNode .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$rs_select = $this->_safe_query ($sql_select);
if (($rs_select) && ($row_select = $this->db->fetchAssoc ($rs_select)))
{
$this->_safe_set ($row_select[$this->FieldID], -1);
$this->_safe_set ($row_select[$this->FieldLeft], -1);
$this->_safe_set ($row_select[$this->FieldRight], -1);
$this->_safe_set ($row_select[$this->FieldLevel], -1);
$delete_offset = $row_select[$this->FieldRight] - $row_select[$this->FieldLeft];
$sql_select_parent = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldID . " = " . $IDParent .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$rs_select_parent = $this->_safe_query ($sql_select_parent);
if (($rs_select_parent) && ($row_select_parent = $this->db->fetchAssoc ($rs_select_parent)))
{
$this->_safe_set ($row_select_parent[$this->FieldID], -1);
$this->_safe_set ($row_select_parent[$this->FieldLeft], -1);
$this->_safe_set ($row_select_parent[$this->FieldRight], -1);
$this->_safe_set ($row_select_parent[$this->FieldLevel], -1);
$left = $row_select_parent[$this->FieldLeft] + 1;
//Set node tree as ignore
$sql_ignore = "UPDATE " . $this->TableName .
" SET " . $this->FieldIgnore . " = 1" .
" WHERE " . $this->FieldLeft . " >= " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldRight . " <= " . $row_select[$this->FieldRight] .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_ignore);
// Update Order (set order = order +1 where order>$Order)
if ($Order == -1)
{
$sql_order = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldIDParent . " = " . $IDParent .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldOrder . " DESC " .
" LIMIT 0,1";
$rs_order = $this->_safe_query ($sql_order);
if (($rs_order) && ($row_order = $this->db->fetchAssoc ($rs_order)))
{
$this->_safe_set ($row_order[$this->FieldOrder], 0);
$Order = $row_order[$this->FieldOrder] + 1;
$this->db->freeResult ($rs_order);
}
else
{ $Order = 1; }
}
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldOrder . " = " . $this->FieldOrder . " + 1" .
" WHERE " . $this->FieldIDParent . " = " . $IDParent .
" AND " . $this->FieldOrder . " >= " . $Order .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_update);
$sql_order = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldIDParent . " = " . $IDParent .
" AND " . $this->FieldOrder . " <= " . $Order .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldOrder . " DESC " .
" LIMIT 0,1";
$rs_order = $this->_safe_query ($sql_order);
if (($rs_order) && ($row_order = $this->db->fetchAssoc ($rs_order)))
{
$this->_safe_set ($row_order[$this->FieldRight], -1);
$left = $row_order[$this->FieldRight] + 1;
$this->db->freeResult ($rs_order);
}
$child_offset = $row_select[$this->FieldRight] - $row_select[$this->FieldLeft] + 1;
// Update FieldLeft
if ($left < $row_select[$this->FieldLeft]) // Move to left
{
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldLeft . " = " . $this->FieldLeft . " + (" . $child_offset . ")" .
" WHERE " . $this->FieldLeft . " >= " . $left .
" AND " . $this->FieldLeft . " <= " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldIgnore . " = 0" .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
}
else // Move to right
{
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldLeft . " = " . $this->FieldLeft . " - " . $child_offset .
" WHERE " . $this->FieldLeft . " <= " . $left .
" AND " . $this->FieldLeft . " >= " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldIgnore . " = 0" .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
}
$this->_safe_query ($sql_update);
// Update FieldRight
if ($left < $row_select[$this->FieldLeft]) // Move to left
{
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldRight . " = " . $this->FieldRight . " + (" . $child_offset . ")" .
" WHERE " . $this->FieldRight . " >= " . $left .
" AND " . $this->FieldRight . " <= " . $row_select[$this->FieldRight] .
" AND " . $this->FieldIgnore . " = 0" .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
}
else // Move to right
{
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldRight . " = " . $this->FieldRight . " - " . $child_offset .
" WHERE " . $this->FieldRight . " < " . $left .
" AND " . $this->FieldRight . " >= " . $row_select[$this->FieldRight] .
" AND " . $this->FieldIgnore . " = 0" .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
}
$this->_safe_query ($sql_update);
$level_difference = $row_select_parent[$this->FieldLevel] - $row_select[$this->FieldLevel] + 1;
$new_offset = $row_select[$this->FieldLeft] - $left;
if ($left > $row_select[$this->FieldLeft]) // i.e. move to right
{ $new_offset += $child_offset; }
//Update new tree left
$sql_update = "UPDATE " . $this->TableName .
" SET " . $this->FieldLeft . " = " . $this->FieldLeft . " - (" . $new_offset . "), " .
$this->FieldRight . " = " . $this->FieldRight . " - (" . $new_offset . ")," .
"$this->FieldLevel = $this->FieldLevel + $level_difference" .
" WHERE " . $this->FieldLeft . " >= " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldRight . " <= " . $row_select[$this->FieldRight] .
" AND " . $this->FieldIgnore . " = 1" .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_update);
//Remove ignore statis from node tree
$sql_ignore = "UPDATE " . $this->TableName .
" SET " . $this->FieldIgnore . " = 0" .
" WHERE " . $this->FieldLeft . " >= " . ($row_select[$this->FieldLeft] - $new_offset) .
" AND " . $this->FieldRight . " <= " . ($row_select[$this->FieldRight] - $new_offset) .
" AND " . $this->FieldIgnore . " = 1" .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$this->_safe_query ($sql_ignore);
//Update insert root field
$sql_update = "UPDATE " . $this->TableName . " SET " . $this->FieldIDParent . " = " . $IDParent . ", " .
$this->FieldOrder . " = " . $Order . " WHERE " . $this->FieldID . " = " . $IDNode;
$this->_safe_query ($sql_update);
$this->db->freeResult ($rs_select_parent);
return true;
}
else
{ return false; }
$this->db->freeResult ($rs_select);
return true;
}
else
{ return false; }
}
public function SelectPath ($IDNode = -1, $Differ = "")
{
$sql_select = "SELECT * FROM " . $this->TableName . " WHERE " . $this->FieldID . " = " . $IDNode . " AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$rs_select = $this->_safe_query ($sql_select);
if (($rs_select) && ($row_select = $this->db->fetchAssoc ($rs_select)))
{
$this->_safe_set ($row_select[$this->FieldID], -1);
$this->_safe_set ($row_select[$this->FieldLeft], -1);
$this->_safe_set ($row_select[$this->FieldRight], -1);
$sql_result = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldLeft . " <= " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldRight . " >= " . $row_select[$this->FieldRight] .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldLeft;
$this->db->freeResult ($rs_select);
return $this->_safe_query ($sql_result); // Remember to free result
}
else
{ return false; }
}
public function SelectSubNodes ($IDNode = -1, $Level = -1, $Differ = "")
{
$sql_select = "SELECT * FROM " . $this->TableName . " WHERE " . $this->FieldID . " = " . $IDNode . " AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$rs_select = $this->_safe_query ($sql_select);
if (($rs_select) && ($row_select = $this->db->fetchAssoc ($rs_select)))
{
$this->_safe_set ($row_select[$this->FieldID], -1);
$this->_safe_set ($row_select[$this->FieldLeft], -1);
$this->_safe_set ($row_select[$this->FieldRight], -1);
$this->_safe_set ($row_select[$this->FieldLevel], -1);
if ($Level == -1) // All child nodes
{
$sql_result = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldLeft . " > " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldRight . " < " . $row_select[$this->FieldRight] .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldLeft . "," . $this->FieldOrder;
}
else // Only $Level child nodes
{
$sql_result = "SELECT * FROM " . $this->TableName .
" WHERE " . $this->FieldLeft . " > " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldRight . " < " . $row_select[$this->FieldRight] .
" AND " . $this->FieldLevel . " <= " . ($Level + $row_select[$this->FieldLevel]) .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldLeft . "," . $this->FieldOrder;
}
$this->db->freeResult ($rs_select);
return $this->_safe_query ($sql_result); // Remember to free result
}
else
{ return false; }
}
public function SelectCountSubNodes ($IDNode = -1, $Level = -1, $Differ = "")
{
$sql_select = "SELECT * FROM " . $this->TableName . " WHERE " . $this->FieldID . " = " . $IDNode . " AND " . $this->FieldDiffer . " = '" . $Differ . "'";
$rs_select = $this->_safe_query ($sql_select);
if (($rs_select) && ($row_select = $this->db->fetchAssoc ($rs_select)))
{
$this->_safe_set ($row_select[$this->FieldID], -1);
$this->_safe_set ($row_select[$this->FieldLeft], -1);
$this->_safe_set ($row_select[$this->FieldRight], -1);
$this->_safe_set ($row_select[$this->FieldLevel], -1);
if ($Level == -1) // All child nodes
{
$sql_result = "SELECT count(" . $this->FieldID . ") FROM " . $this->TableName .
" WHERE " . $this->FieldLeft . " > " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldRight . " < " . $row_select[$this->FieldRight] .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldLeft . "," . $this->FieldOrder;
}
else // Only $Level child nodes
{
$sql_result = "SELECT count(" . $this->FieldID . ") FROM " . $this->TableName .
" WHERE " . $this->FieldLeft . " > " . $row_select[$this->FieldLeft] .
" AND " . $this->FieldRight . " < " . $row_select[$this->FieldRight] .
" AND " . $this->FieldLevel . " <= " . ($Level + $row_select[$this->FieldLevel]) .
" AND " . $this->FieldDiffer . " = '" . $Differ . "'" .
" ORDER BY " . $this->FieldLeft . "," . $this->FieldOrder;
}
$this->db->freeResult ($rs_select);
$res = $this->_safe_query ($sql_result); // Remember to free result
list($count) = $this->db->fetchRow($res);
$this->db->freeResult ($res);
return $count;
}
else
{ return false; }
}
// End nasted set public functions //
}
?>