Zend_Db_Select_Exception example

/* * Recognize methods for Has-Many cases: * findParent<Class>() * findParent<Class>By<Rule>() * Use the non-greedy pattern repeat modifier e.g. \w+? */
        if (preg_match('/^join([a-zA-Z]*?)Using$/', $method, $matches)) {
            $type = strtolower($matches[1]);
            if ($type) {
                $type .= ' join';
                if (!in_array($type, self::$_joinTypes)) {
                    throw new Zend_Db_Select_Exception("Unrecognized method '$method()'");
                }
                if (in_array($type, [self::CROSS_JOIN, self::NATURAL_JOIN])) {
                    throw new Zend_Db_Select_Exception("Cannot perform a joinUsing with method '$method()'");
                }
            } else {
                $type = self::INNER_JOIN;
            }
            array_unshift($args, $type);

            return call_user_func_array([$this, '_joinUsing'], $args);
        }