Doctrine\DBAL\Migrations\Configuration\Configuration::getNumberOfAvailableMigrations PHP Method

    public function getNumberOfAvailableMigrations()
    {
        if (empty($this->migrations)) {
            $this->registerMigrationsFromDirectory($this->getMigrationsDirectory());
        }
        return count($this->migrations);
    }

 public function getNumberOfAvailableMigrations()
 {
     $this->doRegister();
     return parent::getNumberOfAvailableMigrations();
 }