private function seed()
    {
        $cmd = new Command('cd');
        $cmd->addParam($this->installDir)
            ->addSubCommand('&&')
            ->addSubCommand('php')
            ->addSubCommand('artisan')
            ->addParam('db:seed');

        return $this->ex($cmd);
    }
private function seed()
    {
        $cmd = new Command('cd');
        $cmd->addParam($this->installDir)
            ->addSubCommand('&&')
            ->addSubCommand('php')
            ->addSubCommand('artisan')
            ->addParam('db:seed');

        return $this->ex($cmd);
    }
private function seed ( ) { $ cmd = new Command ( 'cd' ) ; $ cmd -> addParam ( $ this -> installDir ) -> addSubCommand ( '&&' ) -> addSubCommand ( 'php' ) -> addSubCommand ( 'artisan' ) -> addParam ( 'db:seed' ) ; return $ this -> ex ( $ cmd ) ; }
Run any necessary database migrations.

@return bool True if the migration is successful. False otherwise.
Run any necessary database migrations .