Файл: system/core/nestedsets.php
Строк: 189
<?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;
}
return $this->db->query($query);
}
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);
// Update Ordering
$sql_update = 'UPDATE ' . $this->TableName .
' SET ' . $this->FieldOrder . ' = ' . $this->FieldOrder . ' - 1' .
' WHERE ' . $this->FieldOrder . ' > ' . $row_select[$this->FieldOrder] .
' AND ' . $this->FieldLevel . ' = ' . $row_select[$this->FieldLevel] .
' 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);
$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;
}
}
}