Rails Database Configuration

Rails
1

I’m building an application in which I’d like groups of users to have
their
own dedicated MySQL/SQLite database for the application.

How can I configure Rails so that ActiveRecord uses that group’s
dedicated
database from the start?

–

Joshua S. Martin

2

Joshua M. wrote:

I’m building an application in which I’d like groups of users to have
their
own dedicated MySQL/SQLite database for the application.

How can I configure Rails so that ActiveRecord uses that group’s
dedicated
database from the start?

That question comes up fairly frequently on this list. The usual
answer: that’s a bad idea – don’t do it. You shouldn’t need to have
separate databases for groups.

If you can explain more about why you think you want to do this, we can
offer alternative suggestions.

–

Joshua S. Martin

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]

3

I see. It’s not the fact that I want the data to be separated that made
me
consider multiple DBs, it’s the fact that I want the user to be able to
make
a full SQL or CSV backup of his account that can be restored from within
my
application or into another database.

Perhaps the better question is, how would I make an SQL or CSV export
(within Rails) of only certain data in the database (the key here being
only
certain data) ?

On Tue, May 18, 2010 at 1:38 PM, Marnen Laibow-Koser
[email protected]wrote:

answer: that’s a bad idea – don’t do it. You shouldn’t need to have

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–

Joshua S. Martin

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4

Joshua M. wrote:

I see. It’s not the fact that I want the data to be separated that made
me
consider multiple DBs, it’s the fact that I want the user to be able to
make
a full SQL or CSV backup of his account that can be restored from within
my
application or into another database.

Perhaps the better question is, how would I make an SQL or CSV export
(within Rails) of only certain data in the database (the key here being
only
certain data) ?

You can easily generate CSV or SQL just like any other view template.

However, for mass SQL backups, I think I’d advise just having Rails call
the database’s own dump script.

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]