Eva\EvaEngine\Engine::diDbSlave PHP Method

    public function diDbSlave()
    {
        $config = $this->getDI()->getConfig();
        $slaves = $config->dbAdapter->slave;
        $slaveKey = array_rand($slaves->toArray());
        if (!isset($slaves->{$slaveKey}) || count($slaves) < 1) {
            throw new Exception\RuntimeException(sprintf('No DB slave options found'));
        }
        return $this->diDbAdapter($slaves->{$slaveKey}->adapter, $slaves->{$slaveKey}->toArray(), $this->getDI());
    }