private function joins($class)
{
if ($class == $this->_class)
{
return '';
}
else
{
$tree = array_reverse(Model::getISATree($class));
$joins = array();
array_shift($tree); // Removes first class == $class
foreach ($tree as $c)
{
$joins[] = 'NATURAL JOIN ' . $c;
}
return ' ' . implode("\n", $joins) . "\n";
}
}
