horros / agavi2

            $options = array();

            if ($this->hasParameter('options')) {

                foreach ((array)$this->getParameter('options') as $key => $value) {

                    $options[is_string($key) && strpos($key, '::') ? constant($key) : $key] = is_string($value) && strpos($value, '::') ? constant($value) : $value;

                }

            }

            $this->connection = $this->resource = new \PDO($dsn, $username, $password, $options);

                // lets generate exceptions instead of silent failures

                \PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION

            );

            if ($this->hasParameter('attributes')) {

                foreach ((array)$this->getParameter('attributes') as $key => $value) {

                    $attributes[is_string($key) && strpos($key, '::') ? constant($key) : $key] = is_string($value) && strpos($value, '::') ? constant($value) : $value;

                }

            }

            foreach ($attributes as $key => $value) {

                $this->connection->setAttribute($key, $value);

            }