From: sto.mar@...
Date: 2013-05-20T05:55:48+09:00
Subject: Re: new, with an idea, and not sure what to learn next

Am 19.05.2013 22:31, schrieb Matt Lawrence:
> On Mon, 20 May 2013, Wendy Randquist wrote:
>
>> But I want to be able to run this program multiple times... one of my
>> problems here is that, I can create an array with my hours, then ask for
>> input (how many hours today? for instance), and add the input into that
>> array, then sum all of the hours in the array. But once the program is
>> finished running and I run it again... the array is back to square one.
>> What kind of knowledge do I need to make it so I can create a program
>> that would save new data even after I closed it? What do I need to start
>> googling, above and beyond Ruby syntax, to understand how to do a
>> project like this? What other sources are there for learning how to do
>> things like divide time in pay periods and having the program deal with
>> real-time?
>
> You need some form of persistent data storage.  For me, I had a similar
> problem recently so I set up MySQL and am using the Sequel gem to
> provide a simplistic (and not even relational) data store.  Using Sqlite
> would be even easier for your application.

For simple file-based storage where no relational database is needed
there's also e.g.

- YAML::Store
- CSV
- File.open(filename, 'w'),
   combined with YAML.dump/YAML.load_file or plain text

That's probably easier to play around with at the beginning
and does not require setting up a MySQL server.


-- 
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