Doctrine\DBAL\Migrations\Configuration\JsonConfiguration::doLoad PHP Method

    protected function doLoad($file)
    {
        $config = json_decode(file_get_contents($file), true);
        if (isset($config['migrations_directory'])) {
            $config['migrations_directory'] = $this->getDirectoryRelativeToFile($file, $config['migrations_directory']);
        }
        $this->setConfiguration($config);
    }