$this->addSql('ALTER TABLE '.$this->getTable('user').' CHANGE salt salt VARCHAR(180) NOT NULL;');
$this->addSql('ALTER TABLE '.$this->getTable('user').' CHANGE password password VARCHAR(180) NOT NULL;');
$this->addSql('ALTER TABLE '.$this->getTable('user').' CHANGE salt salt VARCHAR(180) NOT NULL;');
$this->addSql('ALTER TABLE '.$this->getTable('user').' CHANGE password password VARCHAR(180) NOT NULL;');