Re: [PhillyOnRails] Initialize ActiveRecord w/o a database.

[Walter Lee Davis <waltd@wdstudio.com>]

On Feb 20, 2006, at 1:51 AM, Adam C. Greenfield wrote:

> On 2/20/06, Adam C. Greenfield <adam.greenfield@gmail.com> wrote:
> > On 2/19/06, Cassius Rosenthal <cassius@xmodulation.com> wrote:
> > > Taken out of context, my question doesn't sound so complicated.  The
> > > question revolves around how to initialize ActiveRecord, not the
> > > connection.  From my previous post:
> > > > I tried leaving 'database.yml' blank and I tried disabling
> > > > ActiveRecord's initialization.  Both cause runtime errors in the 
> > > > app,
> > > > as it tries to cache relationships I guess.
> > > Yes; I would like to establish a new connection using
> > > "ActiveRecord::Base#establish_connection."  I can't, because the 
> > > entire
> > > stack dies first, because ActiveRecord is trying to connect to
> > > 'config/database.yml.'
>
> Looking at the code in railties, there does not appear to be any
> method you can configure rails not to try to connect to the database
> in database.yml. You could either replace
> Rails::Initializer#initialize_database
> (railties/lib/initializer.rb:167 in trunk) with a dummy method (which
> could possibly create other issues, I'd have to look into it further)
> or just configure a sqlite database or a mysql test database in your
> database.yml and deal with changing it during run time.

What would happen if the stack "collapsed"? (This, by the way, is a 
total newbie perspective, and a genuine question.) Would it be possible 
to have a sort of "starter" database in database.yml, and then use the 
user input to select a different database, kill the current process and 
restart with that new one?

Writing it out like this, it seems to me to be something that may 
either be impossible by design, or by security policy, or both, but I 
thought I'd mention it.

Walter

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