Re: [Rails] Question About Incremental and Ongoing Seeding of Database Throughout Application Life Cycle

On 24 February 2012 00:18, Frank Guerino <lists@ruby-forum.com> wrote:
> Hi,
>
> I have a question about how best to handle "ongoing" and "incremental"
> seeding of a database, after the application is built.
>
> Summary of Application: I need to build a multiple choice testing
> application where, in short, each Question has four Answer Choices.  A
> "User Specific Test" will consist of 200 randomly selected Questions
> from a Catalog that contains thousands of Questions.  There are other
> constructs that handle things like Test Results, etc.  Rails seems to
> handle the model pretty well.
>
> Summary of the Issue:  The requirement is that as new Questions and
> their correlating Answer Options get created, about 100 per month, they
> need to be loaded in bulk into the database, through an automated means.
> The key is not to disrupt anything that already exists in the database
> and automatically make the new Questions discoverable via the Catalog.
>
> Is there a clean way to handle this with Rails?  I've been skimming
> through things like Fixtures but don't know enough about them to
> understand whether they'd help.

I use a script in db/seeds.rb to accomplish a similar task. I have a
cron job that prepares the data and then runs rake db:seed to update
the db from the source data. In fact all that seeds.rb does is call
model methods to do the import.

Colin

>
> Thanks, in advance, for any help you can offer.
>
> Frank
>
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