function nstDelete($thandle, $node)
{
$leftanchor = $node['l'];
$this->RecordClassFinder->deleteAll($thandle['lvalname'] . ">=" . $node['l'] . " AND " . $thandle['rvalname'] . "<=" . $node['r']);
_shiftRLValues($thandle, $node['r'] + 1, $node['l'] - $node['r'] - 1);
return nstGetNodeWhere($thandle, $thandle['lvalname'] . "<" . $leftanchor . " ORDER BY " . $thandle['lvalname'] . " DESC");
}
function nstAncestor($thandle, $node)
{
return nstGetNodeWhere($thandle, $thandle['lvalname'] . "<" . $node['l'] . " AND " . $thandle['rvalname'] . ">" . $node['r'] . " ORDER BY " . $thandle['rvalname']);
}
