Amazon SimpleDB ang Ruby

Rails
1

Amazon SimpleDB satisfies the hosting model I need for a project.
Unfortunately, looks like it only supports
PHP, C#, Java, Perl, and VB.NET. Does anyone know of any work to make
it work with Ruby on Rails.
Thanks,
gk

2

The first question is whether there’s even a valid and sufficiently
complete
mapping between ActiveRecord and SimpleDB:

  • GET, PUT or DELETE items in your domain, along with the
    attribute-value pairs that you associate with each item. Amazon
    SimpleDB
    automatically indexes data as it is added to your domain so that it
    can be
    quickly retrieved; there is no need to pre-define a schema or change
    a
    schema if new data is added later. Each item can have up to 256
    attribute
    values. Each attribute value can range from 1 to 1,024 bytes.

  • QUERY your data set using this simple set of operators: =, !=, <, >
    <=, >=, STARTS-WITH, AND, OR, NOT, INTERSECTION AND UNION. Query
    execution
    time is currently limited to 5 seconds. Amazon SimpleDB is designed
    for
    real-time applications and is optimized for those use cases.

If there is such a mapping, I for one would like to understand the
limitations in RoR terminology. And if there is hope for being able to
use
SimpleDB with my current controllers, I for one would be very interested
in
contributing to the cause, whether that be coding or testing or docs or
possibly even donations.

BTW, I’m working on a related concept: service-oriented memcached for
Rails
(big memcached in the sky).

Cheers,

m

3

There are several projects listed on sourceforge (or was it rubyforge?),
but all seem to be in the
early stages.

What are your requirements? S3, SimpleDB or both?

– Long

----- Original Message -----
From: “kublai” [email protected]
To: “Ruby on Rails: Talk” [email protected]
Sent: Thursday, December 20, 2007 4:16 PM
Subject: [Rails] Amazon SimpleDB ang Ruby

4

Well, it’s the combination of pay-what-you-use hosting plan and the
structured data storage system. Any such hosting plan offered for
Postgres or MySQL, or SQLite3?

5

I recently completed work an a proxy server, allowing you to use
Simple DB as a backend with Rails ActiveResource framework. Find the
results here:

http://inside.glnetworks.de/2008/01/20/bridging-rails-to-amazon-simpledb-using-activeresource/

Cheers,
Martin